Ssl2

Front cover

WebSphere MQ V6,
WebSphere Message
Broker V6, and SSL
WebSphere MQ SSL channels on
Windows

WebSphere MQ V6 and WebSphere
Message Broker V6 (the Toolkit)

Connecting WebSphere MQ
and Message Broker using SSL

Saida Davies
Emir Garza
Vicente Suarez

ibm.com/redbooks Redpaper

International Technical Support Organization

WebSphere MQ V6, WebSphere Message Broker V6,
and SSL

November 2006

Note: Before using this information and the product it supports, read the information in
“Notices” on page vii.

First Edition (November 2006)

This edition applies to Version 6 of IBM WebSphere MQ and Version 6 of IBM WebSphere
Message Broker.
© Copyright International Business Machines Corporation 2006. All rights reserved.
Note to U.S. Government Users Restricted Rights -- Use, duplication or disclosure restricted by GSA ADP
Schedule Contract with IBM Corp.

Contents

Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
The team that wrote this Redpaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Become a published author . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Comments welcome. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Chapter 1. Connecting two Windows queue managers using SSL . . . . . . 1
1.1 Basic configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1.1 Creating the queue managers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1.2 Setting up the channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.3 Checking the channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.2 SSL: The very basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Process overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3.1 Creating a key repository for each queue manager . . . . . . . . . . . . . . 6
1.3.2 Obtaining a certificate for each queue manager . . . . . . . . . . . . . . . . . 8
1.3.3 Installing the certificates in the key repositories . . . . . . . . . . . . . . . . 10
1.3.4 Setting up the channels for SSL authentication and testing . . . . . . . 18

Chapter 2. WebSphere MQ V6 clients on Windows . . . . . . . . . . . . . . . . . . 21
2.1 Process overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.2 Setting up a non-SSL WebSphere MQ client . . . . . . . . . . . . . . . . . . . . . . 22
2.3 Verifying non-SSL client connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.3.1 Using WebSphere MQ server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.3.2 Using channel tables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4 SSL server authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
2.4.1 Creating a key repository for the queue manager . . . . . . . . . . . . . . . 28
2.4.2 Creating a self-signed certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
2.4.3 Installing the CA part in the client's key repository . . . . . . . . . . . . . . 33
2.4.4 Testing SSL server authentication . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.5 SSL client authentication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2.5.1 Creating a self-signed certificate for the client . . . . . . . . . . . . . . . . . 39
2.5.2 Installing the CA part in the queue manager's key repository . . . . . . 41
2.5.3 Testing SSL client authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Chapter 3. WebSphere MQ SSL on z/OS, AIX 5L, and Windows. . . . . . . . 45
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
3.2 Certification authority setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

© Copyright IBM Corp. 2006. All rights reserved. iii

3.2.1 Creating a root certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.2.2 Checking if the certificate was created . . . . . . . . . . . . . . . . . . . . . . . 53
3.3 z/OS to z/OS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
3.3.1 Enabling SSL on the queue managers . . . . . . . . . . . . . . . . . . . . . . . 57
3.3.2 Creating the queue manager certificate . . . . . . . . . . . . . . . . . . . . . . 63
3.3.3 Connecting the certificate to the key ring . . . . . . . . . . . . . . . . . . . . . 66
3.3.4 Altering the channel attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
3.4 z/OS to Windows. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3.4.1 Creating a certificate for WIN1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
3.4.2 Exporting the certificate from RACF . . . . . . . . . . . . . . . . . . . . . . . . . 77
3.4.3 Downloading the certificate to Windows . . . . . . . . . . . . . . . . . . . . . . 78
3.4.4 Creating a key repository for WIN1 . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.4.5 Importing the certificate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
3.5 z/OS to AIX 5L. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
3.5.1 Creating a certificate for the AIX 5L queue manager . . . . . . . . . . . . 86
3.5.2 Exporting the certificate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
3.5.3 Downloading the certificate to AIX 5L . . . . . . . . . . . . . . . . . . . . . . . . 91
3.5.4 Creating a key repository for AIX1 . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3.5.5 Importing the certificate for AIX1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
3.6 AIX 5L to Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
3.6.1 Creating a certificate for the Windows queue manager . . . . . . . . . . 98
3.6.2 Exporting the certificate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
3.6.3 Downloading the certificate to Windows . . . . . . . . . . . . . . . . . . . . . 102
3.6.4 Creating a key repository for WIN2 . . . . . . . . . . . . . . . . . . . . . . . . . 103
3.6.5 Importing the certificate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
3.6.6 Altering the channel attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3.7 Windows to Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
3.7.1 Altering the channel attributes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Chapter 4. Connecting the WebSphere Message Broker V6 Toolkit using
SSL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
4.1 Process overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
4.2 One-way (server) SSL authentication . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
4.2.1 Creating a self-signed certificate for the queue manager . . . . . . . . 110
4.2.2 Extracting the CA certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
4.2.3 Installing the CA part in the Toolkit's key repository . . . . . . . . . . . . 116
4.2.4 Testing the one-way SSL connection . . . . . . . . . . . . . . . . . . . . . . . 120
4.3 Two-way (mutual) SSL authentication. . . . . . . . . . . . . . . . . . . . . . . . . . . 124
4.3.1 Creating a certificate for the Toolkit . . . . . . . . . . . . . . . . . . . . . . . . 125
4.3.2 Extracting the CA certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
4.3.3 Transferring the CA file . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

iv WebSphere MQ V6, WebSphere Message Broker V6, and SSL

4.3.4 Installing the CA certificate in the queue manager . . . . . . . . . . . . . 127
4.3.5 Setting up and testing two-way SSL . . . . . . . . . . . . . . . . . . . . . . . . 128
4.4 What could go wrong?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
4.4.1 Unable to access stashed password. . . . . . . . . . . . . . . . . . . . . . . . 128
4.4.2 WebSphere MQ reason code 2397. . . . . . . . . . . . . . . . . . . . . . . . . 129
4.4.3 WebSphere MQ reason code 2009. . . . . . . . . . . . . . . . . . . . . . . . . 130
4.4.4 Configuration Manager proxy retry attempts . . . . . . . . . . . . . . . . . . 130

Related publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Other publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Online resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
How to get IBM Redbooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Help from IBM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Contents v

vi WebSphere MQ V6, WebSphere Message Broker V6, and SSL

Notices

This information was developed for products and services offered in the U.S.A.

IBM may not offer the products, services, or features discussed in this document in other countries. Consult
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responsibility to evaluate and verify the operation of any non-IBM product, program, or service.

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The furnishing of this document does not give you any license to these patents. You can send license
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IBM Director of Licensing, IBM Corporation, North Castle Drive, Armonk, NY 10504-1785 U.S.A.

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PROVIDES THIS PUBLICATION "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR
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This information could include technical inaccuracies or typographical errors. Changes are periodically made
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This information contains examples of data and reports used in daily business operations. To illustrate them
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All of these names are fictitious and any similarity to the names and addresses used by an actual business
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COPYRIGHT LICENSE:

This information contains sample application programs in source language, which illustrate programming
techniques on various operating platforms. You may copy, modify, and distribute these sample programs in
any form without payment to IBM, for the purposes of developing, using, marketing or distributing application
programs conforming to the application programming interface for the operating platform for which the
sample programs are written. These examples have not been thoroughly tested under all conditions. IBM,
therefore, cannot guarantee or imply reliability, serviceability, or function of these programs.

© Copyright IBM Corp. 2006. All rights reserved. vii

Trademarks
The following terms are trademarks of the International Business Machines Corporation in the United States,
other countries, or both:

AIX 5L™ Parallel Sysplex® SupportPac™
AIX® RACF® WebSphere®
ibm.com® Redbooks (logo) ™ z/OS®
IBM® Redbooks™

The following terms are trademarks of other companies:

Java, JVM, and all Java-based trademarks are trademarks of Sun Microsystems, Inc. in the United States,
other countries, or both.

Internet Explorer, Microsoft, Windows, and the Windows logo are trademarks of Microsoft Corporation in the
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Other company, product, or service names may be trademarks or service marks of others.

viii WebSphere MQ V6, WebSphere Message Broker V6, and SSL

Preface

This IBM® Redpaper provides step-by-step guides to implement IBM
WebSphere® MQ Secure Sockets Layer (SSL) channels in a variety of
configurations:
Microsoft® Windows® to and from Windows
WebSphere MQ clients to WebSphere MQ queue managers (both on
Windows)
Any-to-any WebSphere MQ channel connections on IBM z/OS®, AIX® 5L™,
and Windows, using RACF® as the certification authority
WebSphere Message Broker Toolkit

The aim is for you to learn the basics of WebSphere MQ SSL using simple
connectivity examples.

The team that wrote this Redpaper
This Redpaper was produced by a team of specialists from IBM Hursley working
with the International Technical Support Organization, Hursley Center.

Saida Davies is a Project Leader for the ITSO and is an
experienced IBM Senior IT Specialist. She has published
several Redbooks™ on WebSphere Business Integration
topics for multiple platforms. Saida has experience in the
architecture and design of WebSphere MQ solutions,
extensive knowledge of z/OS operating system and a detailed
working knowledge of both IBM and independent software
vendors’ operating system software. In a client-facing role as a
senior IT specialist with IBM Global Services, her
responsibilities included the development of services for
WebSphere MQ within the z/OS and Windows platforms. This
covered the architecture, scope, design, project management,
and implementation of the software on stand-alone systems or
on systems in a Parallel Sysplex® environment. She has
received Bravo Awards for her project contributions. Saida has
a degree in Computer Studies and her background includes
z/OS systems programming. Saida supports Women in
Technology activities and contributes and participates in the
their meetings.

© Copyright IBM Corp. 2006. All rights reserved. ix

Emir Garza is an IT Specialist from IBM Hursley, in the U.K. He
has seven years of experience in the business integration field.
His areas of expertise include WebSphere MQ and
WebSphere Message Broker.

Vicente Suarez is an IT Specialist from IBM Hursley, in the
U.K. He has five years of experience in the business integration
field. His areas of expertise include WebSphere MQ and
WebSphere Message Broker.

The team thanks the following people for their invaluable technical advice to this
Redpaper:

Morag Hughson
Software Engineer, IBM Software Group, Application and Integration Middleware
Software, IBM Hursley

Hazel Fix
Software Engineer, IBM Software Group, Application and Integration Middleware
Software, IBM Hursley

Ian Vanstone
WebSphere MQ Developer, IBM Software Group, Application and Integration
Middleware Software, IBM Hursley

Don Graminske
Technical Sales, IBM Software Group, Application and Integration Middleware
Software, IBM Phoenix
Don co-authored an earlier version of the chapter about clients.

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x WebSphere MQ V6, WebSphere Message Broker V6, and SSL

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Preface xi

xii WebSphere MQ V6, WebSphere Message Broker V6, and SSL

1

Chapter 1. Connecting two Windows
queue managers using SSL
This section presents a step-by-step guide to configuring two WebSphere MQ
Version 6 queue managers on Microsoft Windows for communication using
Secure Sockets Layer (SSL) channels.

We assume that you are familiar with SSL in general and know how to set up
non-SSL sender/receiver channels between two queue managers.

For more information about SSL with WebSphere MQ, refer to WebSphere MQ
V6 Security, SC34-6588. Download the PDF from:
http://www.ibm.com/software/integration/wmq/library/

© Copyright IBM Corp. 2006. All rights reserved. 1

1.1 Basic configuration
Two queue managers are needed with a working connection (sender/receiver
channel pairs in both directions). Table 1-1 shows the names and attributes used.
You can create queue managers with the same names, or adjust the following
instructions to match your configuration.

Table 1-1 Basic configuration
Queue manager name QM1 QM2

IP address 192.168.1.65 192.168.1.64

Listener port 11111 22222

Transmit queue QM2 QM1

Sender channel QM1.QM2 QM2.QM1

Receiver channel QM2.QM1 QM1.QM2

Local queue (for testing) Q1 Q2

Remote queue definition (for testing) QM2.Q2 QM1.Q1

WebSphere MQ installation directory (throughout C:MQV6 C:MQV6
this document, <MQdir>)

If you create the two queue managers as in Table 1-1, the only change you need
to make is the IP address. You can create the two queue managers on the same,
or on separate, Windows systems. Skip to 1.1.3, “Checking the channels” on
page 4, if you already have two interconnected queue managers.

1.1.1 Creating the queue managers
Use Version 6 WebSphere MQ Explorer or a command script to create the
queue managers. Example 1-1 shows how to create a queue manager called
QM1 with a listener on port 11111.

Example 1-1 Create queue manager QM1
@echo Create queue manager
crtmqm -u QM1.DLQ QM1

@echo Start queue manager and associated services
amqmdain qmgr start QM1

@echo Create and start listener

2 WebSphere MQ V6, WebSphere Message Broker V6, and SSL

@echo def listener('LISTENER.TCP') trptype(tcp) port(11111)
control(qmgr) | runmqsc QM1
@echo START LISTENER('LISTENER.TCP') | runmqsc QM1

@echo Create dead letter queue
@echo def ql(QM1.DLQ) replace | runmqsc QM1

Example 1-1 on page 2 shows how to create QM1. It can also be adapted to
create QM2.

1.1.2 Setting up the channels
The following commands (Example 1-2), when run from a command prompt on
the machine where QM1 is running, create the necessary WebSphere MQ
objects for QM1 to communicate with QM2.

Example 1-2 Create objects for QM1
echo def ql(QM2) replace usage(xmitq) trigger trigdata(QM1.QM2)
initq(SYSTEM.CHANNEL.INITQ) | runmqsc QM1

echo def chl(QM1.QM2) chltype(sdr) replace xmitq(QM2)
conname('192.168.1.64(22222)') | runmqsc QM1

echo def chl(QM2.QM1) chltype(rcvr) replace | runmqsc QM1

@rem Create queues for test
echo def ql(Q1) replace | runmqsc QM1
echo def qr(QM2.Q2) replace rname(Q2) rqmname(QM2) | runmqsc QM1

Similarly, the commands shown in Example 1-3, when run from a command
prompt on the machine where QM2 is running, create the objects that QM2
needs to communicate with QM1.

Example 1-3 Create objects for QM2
echo def ql(QM1) replace usage(xmitq) trigger trigdata(QM2.QM1)
initq(SYSTEM.CHANNEL.INITQ) | runmqsc QM2

echo def chl(QM2.QM1) chltype(sdr) replace xmitq(QM1)
conname('192.168.1.65(11111)') | runmqsc QM2

echo def chl(QM1.QM2) chltype(rcvr) replace | runmqsc QM2

@rem Create queues for test

Chapter 1. Connecting two Windows queue managers using SSL 3

echo def ql(Q2) replace | runmqsc QM2
echo def qr(QM1.Q1) replace rname(Q1) rqmname(QM1) | runmqsc QM2

1.1.3 Checking the channels
Before proceeding, open a command prompt and check that the channels you
intend to use with SSL (in the configuration example QM1.QM2 and QM2.QM1)
run correctly (Table 1-2). The following example assumes that the channels are
already running, or the transmission queue is triggered.

Table 1-2 Channel test
Test Machine Run

QM1 to QM2 Same as QM1 C:>amqsput QM2.Q2 QM1
Sample AMQSPUT0 start target queue is QM2.Q2
test msg 1
[Press ENTER]
Sample AMQSPUT0 end
C:>

Same as QM2 C:>amqsget Q2 QM2
Sample AMQSGET0 start
message <test msg 1>
[wait 15 seconds]
no more messages
Sample AMQSGET0 end
C:>

QM2 to QM1 Same as QM2 C:>amqsput QM1.Q1 QM2
Sample AMQSPUT0 start
target queue is QM1.Q1
test msg 2
Sample AMQSPUT0 end
C:>

Same as QM1 C:>amqsget Q1 QM1
no more messages
Sample AMQSGET0 end
C:>

With both queue managers and their channels up and running, you are ready to
set up the SSL connection.


1.2 SSL: The very basics
In the SSL protocol, the party that starts a conversation (in this case, the
WebSphere MQ sender channel) is the SSL client. The other party (WebSphere
MQ receiver channel) is the SSL server.

The SSL client (sender channel) authenticates the server by requesting the
server's certificate. This is sometimes called one-way authentication. Optionally,
the server (receiver channel) might require client authentication (this is mutual, or
two-way, authentication).

In WebSphere MQ, most customers using SSL channels set them up to request
mutual authentication. In this example, one-way authentication is set up first, and
then mutual authentication.

Incidentally, one-way authentication is what happens when you shop online.
Your browser, an SSL client, receives a certificate from the online shop, so you
know it is safe to give them your credit card, but the shop does not request a
certificate from you.

When a sender channel is started (for example, QM2.QM1), this is what
happens; it is called the SSL handshake:
1. QM2 starts the connection and requests a certificate.
2. QM1 sends its certificate. This is encrypted (signed) using the certification
authority certificate (we describe this more later).
3. QM2 verifies QM1's digital signature in the certificate. QM2 now knows QM1
is who it claims to be.
4. If mutual authentication is required, QM2 sends its certificate to QM1.

The handshake continues with the selection of a secret key that both parties can
use to sign and encrypt messages.

From the previous steps, it follows that:
The party being authenticated must have a certificate. This is called a
personal certificate.
The authenticating party must be able to decipher the certificate's signature: It
must have the certification authority certificate used to sign the other party's


1.3 Process overview
To establish an SSL connection between QM1 and QM2, use the following
process:
1. Create a key repository for each queue manager.
2. Obtain a certificate for each queue manager.
3. Install the certificates in the key repositories.
4. Set up the channels for SSL authentication and test.

1.3.1 Creating a key repository for each queue manager
To create a key repository for queue manager QM1, perform the following steps.
Repeat these steps for QM2.
1. Open a Windows command prompt and enter strmqikm. This starts the IBM
Key Management (iKeyman) GUI.
2. Create a key repository for the queue manager. Select Key Database File →
New.
3. Create a repository as follows:
– Key database type: CMS (Certificate Management System)
– File name: key.kdb
– Location: <MQdir>QmgrsQM1ssl
In this example: C:MQV6QmgrsQM1ssl
Figure 1-1 illustrates these options. Click OK.

Figure 1-1 Create key repository


4. Enter a password (remember it because it is required later) and select Stash
the password to a file?, as shown in Figure 1-2. Click OK.

Figure 1-2 Key repository password

5. The message shown in Figure 1-3 opens. Click OK.

Figure 1-3 Password confirmation

A key repository for queue manager QM1 is created.


6. After creating the key repository, the GUI shows the installed certification
authority certificates provided with iKeyman. Use the drop-down menu (top
right) to switch to viewing Personal Certificates, as shown in Example 1-4.

Figure 1-4 Switch to Personal Certificates view

Keep the iKeyman GUI open, because you need to come back to it shortly.

Repeat the previous steps for QM2 on the machine where queue manager QM2
is running.

1.3.2 Obtaining a certificate for each queue manager
The following instructions show how to obtain a certificate for queue manager
QM1. Repeat these steps for QM2.

There are a number of ways to obtain a certificate for your queue manager:
You can create self-signed certificates.
You can have an in-house certification authority.
You can request a certificate from a certification authority.


The following instructions are for obtaining a demo (valid for 30 days) personal
certificate from GlobalSign. There are other sites for requesting certificates,
which you can easily find by performing an Internet search.

GlobalSign is convenient because it does not require registration.

Note: Certificates for purposes other than a demo do incur a cost (dispensing
certificates is what certification authorities do for a living).

To obtain a certificate:
1. Open Microsoft Internet Explorer and go to the following Web site:
http://www.globalsign.com
2. Select Buy Certificates. This opens a list. From the list, select Personal
Certificates.
3. This opens:
http://www.globalsign.com/digital_certificate/personalsign/index.cfm
Select PersonalSign Demo Certificate (click the Get Yours Now! button).
4. This takes you to a page showing an 8-step process (see Table 1-3) for
obtaining your certificate.

Table 1-3 Obtaining a personal certificate
Stepa Comments

Step 1. CHECK ROOT This is installed already.
First, you need to install GlobalSign’s Root
Certificate.

Step 2. SUBMIT YOUR E-MAIL ADDRESS Your Internet e-mail address is required (for
Submit your e-mail address and provide a example, emir_garza@uk.ibm.com) and a
password. password that is used in step 4. After selecting Go
to step 3, GlobalSign sends you an e-mail.

Step 3. CHECK YOUR MAILBOX You receive the e-mail, from ca@globalsign.net,
You will receive an e-mail from GlobalSign in your within a minute. It contains a hyperlink. Click it
mailbox. You have to check your mailbox and click (ensure that clicking the hyperlink invokes the same
on the hyperlink. browser you were using before).

Step 4. ENTER YOUR PASSWORD Enter the password you chose in step 2.
Enter the password you provided in step 2.

Step 5. PROVIDE PERSONAL DATA Click Go to step 6 without making any changes. In
Enter some personal information. particular, leave Protect private key set to No.


Stepa Comments

Step 6. ACCEPT AGREEMENT Click Agree (Go to step 7).
Read the subscriber agreement.

Step 7. CHECK YOUR MAILBOX You receive another e-mail within five minutes. It
You will receive an e-mail from GlobalSign contains a hyperlink that downloads your certificate
containing a hyperlink. Check your mailbox. and opens a browser page with an “Install” button.
Ensure it is the same browser as before.

Step 8. INSTALL CERTIFICATE Click Install.
When receiving our mail, click the hyperlink in order Click OK to any browser warnings.
to install your certificate. You receive a message confirming that your
certificate is installed. Click OK.
a. Steps reprinted from the GlobalSign Web site.

Verify that the certificate is installed. The following text is from the final
confirmation window:
Note for Microsoft Internet Explorer® Users:
After having installed your certificate, now verify that you OWN a Globalsign
Certificate.
Go to the “Tools” menu, select “Internet options”, click on the “Content” tab
and finally click on “Certificates”.
By doing so, you have opened the certificate manager, where you see a
GlobalSign Certificate “issued to” your e-mail address.

Repeat these steps for queue manager QM2 (on the machine where QM2 runs).

1.3.3 Installing the certificates in the key repositories
The following instructions show how to install the certificate just obtained for
queue manager QM1. Repeat these steps for QM2.

The certificate you just obtained is accessible from Internet Explorer. To install it
for QM1, you need to:
1. Export the certificate from Internet Explorer.
2. Import the certificate into QM1's key repository.

Exporting the certificate from Internet Explorer
To export the certificate from Internet Explorer:
1. Open Internet Explorer and select Tools → Internet Options → Content →
Certificates.


2. You see the certificate you just obtained and installed, as shown in Figure 1-5.
Select (click) the certificate and then click Export.

Figure 1-5 Internet Explorer Certificates

3. The Certificate Export Wizard opens. At the Welcome window, click Next.
4. At the Export Private Key dialog, select Yes.


5. At the Export File Format window, select Include all certificates in the
certification path if possible and Enable strong protection, as shown in
Figure 1-6. Click Next.

Figure 1-6 Export Certificate

6. At the Password window, enter a password to protect the exported certificate
(remember it, because it is required when importing).
7. At the File to Export window, enter (or navigate to)
<MQdir>QmgrsQM1sslQM1.pfx (in this example,
C:MQV6QmgrsQM1sslQM1.pfx). Click Next.
8. At the completion window, verify the settings. The settings must be as shown
in Figure 1-7 on page 13:
– File Name: C:MQV6QmgrsQM1sslQM1.pfx
– Export Keys: Yes
– Include all certificates in the certification path: Yes
– File Format: Personal Information Exchange (*.pfx)
Click Finish.


Figure 1-7 Export Certificate settings

You see the message:
The export was successful.

The next step imports the certificate into QM1's key repository.

Importing the certificate
To import the certificate:
1. Switch to the iKeyman GUI, which was left open at the end of 1.3.1, “Creating
a key repository for each queue manager” on page 6.
If iKeyman is closed:
a. Enter strmqikm from a command prompt.
b. Select Key Database File → Open → <MQdir>QmgrsQM1sslkey.kdb.
c. Enter the password.
d. Select Personal Certificates.


2. The Personal Certificates pane is empty. Click Import, as shown in
Figure 1-8.

Figure 1-8 Import certificate

3. This opens the Import Key window (Figure 1-9). Select PKCS12 for the Key
file type.

Figure 1-9 Import Key


Click Browse:
a. Navigate to <MQdir>QmgrsQM1ssl.
b. Select All Files (see Figure 1-10).
c. Select QM1.pfx (the certificate exported from Internet Explorer).
Click Open.

Figure 1-10 Select exported certificate

4. This returns you to the Import Key window. Click OK.
5. Enter the password you gave when exporting the certificate from Internet
Explorer. Click OK.
6. The Change Labels window (Figure 1-11 on page 16) asks “Would you like to
change any of these labels before completing the import process?” and
shows four certificates1: Three are for the certification authority (they all have
globalsign somewhere in the label) and one is the personal certificate (the
label is a hexadecimal string).
Select the personal certificate (this enables the new label field, at the bottom).

1
If you see only one certificate, it is because you did not select Include all certificates when
exporting the certificate from Internet Explorer. The import might work, but if it does not, repeat the
export process, this time including all certificates.


Enter the label. This must be ibmwebspheremq followed by the queue manager
name, all in lowercase, ibmwebspheremqqm1. Click Apply. Click OK.

Figure 1-11 Change Labels

You see the certificate listed under Personal Certificates (Figure 1-12).

Figure 1-12 Queue manager personal certificate


You also see the certification authority certificates listed under Signer
Certificates (Figure 1-13).

Figure 1-13 Certification authority certificates

7. Close the repository (select Key Database File → Close), as shown in
Figure 1-14.

Figure 1-14 Close key repository

8. Close the iKeyman GUI.


Repeat these steps for queue manager QM2 (on the machine where QM2 is
running).

1.3.4 Setting up the channels for SSL authentication and testing
Open WebSphere MQ Explorer on both machines, and start the queue
managers.

Setting up channels on QM1
To set up channels on QM1:
1. Select Channels (under Advanced).
2. Right-click QM1.QM2 and select Properties → SSL.
Set the SSL CipherSpec to NULL_MD5 (any other cipherspec works, as long
as it matches that of the receiver channel in QM2), as shown in Figure 1-15.
Click Apply. Click OK.

Figure 1-15 Sender channel SSL attributes


Set the SSL CipherSpec to NULL_MD5 (again, any cipherspec works, as
long as it matches that of the sender channel in QM2).
Leave Authentication of parties initiating connections as Required, as shown
in Figure 1-16. Click Apply. Click OK.

Figure 1-16 Receiver channel SSL properties

Setting up channels on QM2
To set up channels on QM2:
1. Select Channels (under Advanced).
Set the SSL Cipherspec to NULL_MD5. Click Apply. Click OK.
Set the SSL Cipherspec to NULL_MD5.
Leave Authentication of parties initiating connections as Required.
Click Apply. Click OK.

Verifying the key repository location
From WebSphere MQ Explorer, right-click queue manager QM1 and select
Properties → SSL.


Check that the key repository matches the location and name of the key
repository you created. In our example, this is <MQdir>qmgrsQM1sslkey; see
Figure 1-17. Note that the key repository file extension, .kdb, must be omitted.

Figure 1-17 Verify the key repository location

Repeat the check for queue manager QM2.

Starting the channels
From the QM1 machine, start the sender channel QM1.QM2.

From the QM2 machine, start the sender channel QM2.QM1.

The channels start, meaning they have successfully exchanged their SSL
certificates.

This concludes the SSL setup for two Windows queue managers using an
external certification authority.


2

Chapter 2. WebSphere MQ V6 clients
on Windows
This chapter provides a step-by-step guide for configuring WebSphere MQ
clients to use Secure Sockets Layer (SSL). We assume that you are familiar with
the basic operation of WebSphere MQ V6 Explorer.


Perform the following steps to set up a WebSphere MQ client to use SSL:
1. Set up a non-SSL WebSphere MQ client.
2. Verify the non-SSL client connectivity.
3. Set up a one-way SSL channel connection. One-way means that only the
queue manager (in SSL terms, the server) presents a certificate, which the
client authenticates.
4. Convert the SSL connection to two-way (that is, mutual authentication
between the client and queue manager).

The instructions that follow assume that there are two machines, one for the
queue manager and one for the client; the instructions also work if both the client
and queue manager run in the same machine.

2.2 Setting up a non-SSL WebSphere MQ client
As an optional step, create and start a queue manager, called SSLQM, listening
on port 33333. This is to ensure that we start with a “clean” queue manager, with
no certificates assigned.

You can use an existing queue manager if you prefer. The instructions in this
chapter assume that you have the configuration listed in Table 2-1.

Table 2-1 Queue manager configuration
Queue manager name SSLQM

IP address 192.168.1.64

Listener port 33333

Server connection channel SSL.CLIENTS

Local queue (for testing) Q1

WebSphere MQ installation directory (throughout this document, C:MQV6
<MQdir>)


To create a queue manager and associated objects as listed in Table 2-1 on
page 22, either use WebSphere MQ Explorer, or open a Windows command
prompt and enter the commands1 shown in Example 2-1.

Example 2-1 Create queue manager
@echo Create queue manager
crtmqm -u SSLQM.DLQ SSLQM
@echo Start queue manager
amqmdain qmgr start SSLQM
@echo Create listener
@echo DEFINE LISTENER('LISTENER.TCP') TRPTYPE(TCP) PORT(33333)
CONTROL(QMGR) | runmqsc SSLQM
@echo def ql(SSLQM.DLQ) | runmqsc SSLQM
@echo def ql(Q1) | runmqsc SSLQM
@echo def chl(SSL.CLIENTS) chltype(SVRCONN) | runmqsc SSLQM
@echo START LISTENER('LISTENER.TCP') | runmqsc SSLQM

2.3 Verifying non-SSL client connectivity
This section explains how to use and test non-SSL connectivity.

2.3.1 Using WebSphere MQ server
First, check basic client connectivity using the MQSERVER environment
variable:
1. If not already started, start the queue manager and its listener. Use
WebSphere MQ Explorer, or the command:
amqmdain qmgr start SSLQM
2. On the client machine2, open a command prompt and set the MQSERVER
environment variable:
set MQSERVER=SSL.CLIENTS/TCP/192.168.1.64(33333)

1
You can also place the commands in a Windows command (.cmd) script.
2
You can use the queue manager machine if you do not have a separate machine for the client.

Chapter 2. WebSphere MQ V6 clients on Windows 23

3. Run the sample programs amqsputc and amqsgetc to put and get messages
from the test queue, Q1, as shown in Example 2-2.

Example 2-2 Test the client connection
C:>set MQSERVER=SSL.CLIENTS/TCP/192.168.1.64(33333)

C:>amqsputc Q1
target queue is Q1
7777
[Press ENTER to end amqsputc]
Sample AMQSPUT0 end

C:>amqsgetc Q1
message <7777>
[Wait 15 seconds]
no more messages
Sample AMQSGET0 end

C:>

You cannot use the MQSERVER environment variable to set up SSL channels;
you need to create a channel table, which will be pointed to by the environment
variables MQCHLLIB and MQCHLTAB. The next section explains how to set up
the channel table.

2.3.2 Using channel tables
The instructions that follow are for setting up a WebSphere MQ client to use a
channel table. This is a summary of the necessary steps:
1. Create a client connection channel on the queue manager machine (this
creates the channel table).
2. Transfer the channel table file to the client machine.
3. Set up the appropriate environment variables on the client machine.
4. Test the WebSphere MQ client with channel tables.


Creating a client connection channel
Perform the following steps on the queue manager machine:
1. First, check that you do not have the channel table environment variables set.
Open a command prompt. Enter set mqchl, as shown in Example 2-3. There
should be no variables defined.

Example 2-3 Check the environment variables
C:>set mqchl
Environment variable mqchl not defined

2. Define a client connection channel with a connection name that points to the
queue manager's host and listener port. You can use the WebSphere MQ
Explorer, or the MQSC command as shown in Example 2-4.

Example 2-4 Create a client connection channel
C:>runmqsc SSLQM
5724-H72 (C) Copyright IBM Corp. 1994, 2004. ALL RIGHTS RESERVED.
Starting MQSC for queue manager SSLQM.

def chl(SSL.CLIENTS) chltype(CLNTCONN) replace
conname('192.168.1.64(33333)')
1 : def chl(SSL.CLIENTS) chltype(CLNTCONN) replace
conname('192.168.1.64(33333)')
AMQ8014: WebSphere MQ channel created.
end
2 : end
One MQSC command read.
No commands have a syntax error.
All valid MQSC commands were processed.

As a result, you see a file called AMQCLCHL.TAB in your queue manager's
@ipcc directory, as shown in Example 2-5.

Example 2-5 Channel table
C:<MQdir>QmgrsSSLQM@ipcc>dir
Volume in drive C is IBM_PRELOAD
Volume Serial Number is DCC1-463F

Directory of C: <MQdir>QmgrsSSLQM@ipcc

27/06/2006 09:40 <DIR> .


27/06/2006 09:40 <DIR> ..
27/06/2006 10:03 4,008 AMQCLCHL.TAB

Next, you need to transfer the channel table file to the client machine.

Transferring the channel table file
You need a directory in the client machine to place the channel table. In this
example, we use C:MQCLIENT. To transfer the channel table file:
1. On the client machine, create a directory called C:MQCLIENT.
2. Copy (or FTP binary) the AMQCLCHL.TAB file from the queue manager's
@ipcc directory to the C:MQCLIENT directory on the client machine.

Setting up the environment variables
Open a command prompt on the client machine. Set the MQCHLLIB and
MQCHLTAB environment variables, as shown in Example 2-6.

Example 2-6 Set the environment variables
C:MQCLIENT>set mqchllib=C:MQCLIENT
C:MQCLIENT>set mqchltab=AMQCLCHL.TAB
C:MQCLIENT>set mqchl
mqchllib=C:MQCLIENT
mqchltab=AMQCLCHL.TAB
C:MQCLIENT>set mqserver
Environment variable mqserver not defined

Where:
C:MQCLIENT is the directory to contain the client channel table.
AMQCLCHL.TAB is the default file name for the channel table.

The last command is to ensure that the MQSERVER variable is not set by
accident.

Note: You can also set the environment variable for the whole system, but, if
you do so, this might interfere with other WebSphere MQ client work on your
machine. In particular, you do not set these environment variables for the
whole system if you use a single machine for both client and server.

Keep the command prompt window open. If you close it, remember to set the
environment variables again.


Testing the WebSphere MQ client with channel tables
At this point, you are ready to put and get messages from the client machine,
using the amqsputc and amqsgetc commands (remember to use the same
command prompt window, because a new window will not have the necessary
environment variables), as shown in Example 2-7.

Example 2-7 Test the client connection with channel tables
C:MQCLIENT>amqsputc Q1
target queue is Q1
7777

Sample AMQSPUT0 end

C:MQCLIENT>amqsgetc Q1
message <7777>
no more messages
Sample AMQSGET0 end

After we know that the WebSphere MQ client works, we are ready to add SSL
support. First, we implement server authentication only (one-way), and then
mutual authentication.

2.4 SSL server authentication
With SSL server authentication, the queue manager must have a certificate,
which it presents to the client, so that the client knows it is connecting to the right
server. This is what happens when you shop online and your URL starts with
https:. The browser asks for a certificate, so you know you are giving your credit
card details to the right company, but the server (the online shop) does not ask
for a certificate from you.

There are a number of ways to obtain a certificate for your queue manager:
You can create self-signed certificates.
You can have an in-house certification authority.
You can request a certificate from a certification authority.

In this example, we create self-signed certificates3.
3
Chapter 1, “Connecting two Windows queue managers using SSL” on page 1, shows how to obtain
a certificate from an external authority. Chapter 3, “WebSphere MQ SSL on z/OS, AIX 5L, and
Windows” on page 45, shows how to act as an in-house certification authority.


The steps to implement SSL server authentication are:
1. Create a key repository for the queue manager.
2. Create a self-signed certificate for the queue manager.
3. Add the certification authority certificate to the client. (The client needs this to
decode the queue manager's certificate.)
4. Test the SSL server authentication.

2.4.1 Creating a key repository for the queue manager
To create a key repository for queue manager SSLQM:
1. On the queue manager machine, open a Windows command prompt and
enter strmqikm. This starts the IBM Key Management (iKeyman) GUI.
New.
3. Create a repository as shown in Figure 2-1:
– Key database type: CMS
– File Name: key.kdb
– Location: <MQdir>QmgrsSSLQMssl
In this example: C:MQV6QmgrsSSLQMssl
Click OK.

Figure 2-1 Create a key repository


4. Enter a password (remember it, because you need it to open this key
repository). Select Stash the password to a file?, as shown in Figure 2-2.
Click OK.

Figure 2-2 Key Repository password


Figure 2-3 Key repository password confirmation

You have created a key repository for queue manager SSLQM.


authority certificates provided with iKeyman. Use the menu (top right) to
switch to viewing Personal Certificates, as shown in Figure 2-4.

Figure 2-4 Personal Certificates


2.4.2 Creating a self-signed certificate
To create a self-signed certificate:
1. Click New Self-Signed Certificate (bottom-right corner4).
2. Fill in the certificate attributes, as shown in Figure 2-5:
– Key Label (must be ibmwebspheremq followed by the queue manager name
in lowercase): ibmwebspheremqsslqm
– Common Name: sslqm
(You can have a different naming convention for the common name; feel
free to enter any other value.)
– Organization: ibm (or your company's name)
Leave all other fields unchanged. Click OK.

Figure 2-5 Create New Self-Signed Certificate

4
If you cannot see the New Self-Signed button on the bottom-right corner, it is because you have not
yet switched to the Personal Certificates view (see the previous step).


You see the certificate listed, with an asterisk to the left of the name (the asterisk
means that this is the default certificate for the key repository).

Now the queue manager has a certificate. The queue manager presents this
certificate to the WebSphere MQ client when the client connects. To validate the
queue manager's certificate, the client needs the certification authority (CA)
certificate.

To extract the CA certificate:
1. Click Extract Certificate (bottom-right corner).
2. Enter the following values:
– File Name: sslqm.arm
– Location: C:<MQDir>QmgrsSSLQMssl
Click OK.

This creates a file called sslqm.arm in C:<MQDir>QmgrsSSLQMssl. If you
open the file with Notepad, you see something like Example 2-8.

Example 2-8 Exported certificate
-----BEGIN CERTIFICATE-----
MIIByzCCATSgAwIBAgIEQ1kcEDANBgkqhkiG9w0BAQQFADAqMQswCQYDVQQGE…
ChMDaWJtMQ0wCwYDVQQDEwRtYnY2MB4XDTA1MTAyMDE2NDkyMFoXDTA2MTAyMT…
MAkGA1UEBhMCR0IxDDAKBgNVBAoTA2libTENMAsGA1UEAxMEbWJ2NjCBnzANBg…
AAOBjQAwgYkCgYEA0KzAGeurDcg6J7kTCZcm5M3xtkaiNZO6Kq2KLPqaQH8cKC…
E29GBAQ4rW9FmVu6iUJUZi4Z8p7oaXw5Y6Y6JGdJNBSonaEwdKE3hIHNnoygpJ…
k1kbgTUDmVSG8fKsutWftbqJmKDXPDaBjRkCAwEAATANBgkqhkiG9w0BAQQFAA…
oGkiATOI9TxkP31qZV6ZQmoIZ/UCm9FT7V8gMuux7CssV/CghlzsBmf6vVBjrn…
in5Y/Zq7ySx4Y1H2Fnv133cvyRXroujE9bInUSwzmicCg71tys4vEnNl1Dm/md…
KKVCZ4oHYg==
-----END CERTIFICATE-----


You now must transfer the CA Certificate file to the client's key repository. Before
that, close the repository with which you were working, as shown in Figure 2-6.


Close the iKeyman GUI.

2.4.3 Installing the CA part in the client's key repository
This task consists of the following steps, executed on the client machine (again,
this can be the same as the queue manager machine):
1. Create a key repository for the client.
2. Copy or transfer the CA (sslqm.arm) file to the client.
3. Add the CA file to the client's key repository.

We place the client's key repository in C:MQCLIENT, the same directory we use
for the channel table.

Perform the following steps:
1. Copy (or FTP ASCII) the CA certificate file (sslqm.arm) from the queue
manager's ssl directory to the C:MQCLIENT directory on the client machine.
2. On the client machine, switch to the command prompt window you opened
earlier 5.
Enter strmqikm.


3. Create a key repository for the client. This is the same as creating a key
repository for the queue manager; the only difference is the key repository
location. Select Key Database File → New.
4. Create a repository as follows:
– Location: C:MQCLIENT
Click OK.
5. At the password prompt, enter the password for this repository (twice), and
then click OK.
6. As before, you see a list of CA certificates provided by default.
Click Add (top-right corner).
7. In the next window (Figure 2-7), enter:
– Certificate file name: sslqm.arm
Click OK.

Figure 2-7 Add CA’s Certificate

5
If you closed it, remember to reenter these commands before trying to connect to the queue
manager:
set mqchllib=C:MQCLIENT
set mqchltab=AMQCLCHL.TAB


8. When prompted to enter a label for the certificate, enter sslqm. (You can enter
any name you want; just make sure it lets you identify the CA certificate as
belonging to the queue manager.) Click OK.
The certificate now appears in the Signer Certificates repository, as shown in
Figure 2-8.

Figure 2-8 Certification authority certificate

9. Close the file (Key Database File → Close).
10.Close the iKeyman GUI.
11.Return to the command prompt window.


We created a certificate store for the WebSphere MQ client in C:MQCLIENT, but
we have not told the client where to find it. To do this, set the MQSSLKEYR
environment variable, as shown in Example 2-9.

Example 2-9 Key repository environment variable
C:MQCLIENT>set mqsslkeyr=C:MQCLIENTkey
C:MQCLIENT>set mq
mqchllib=C:MQCLIENT
mqsslkeyr=C:MQCLIENTkey

Note: You must not put the file extension (.kdb) in the MQSSLKEYR
environment variable. This is often overlooked and is the source of most
problems.

Do not close the command prompt window.

You might want to write a command file (called, for example SSL.cmd) to
reestablish the environment variables when you open a new command prompt
window, as shown in Example 2-10.

Example 2-10 Resetting environment variables
set mqchllib=C:MQCLIENT
set mqchltab=AMQCLCHL.TAB
set mqsslkeyr=C:MQCLIENTkey
set mq

At this point, the queue manager has a certificate and the client has the
corresponding CA certificate. We are ready to set up server SSL (one-way)
authentication.

2.4.4 Testing SSL server authentication
Change the client connection and server connection channel definitions for SSL.

Both channels need to specify the same cipherspec. In this example, we use
TRIPLE_DES_SHA_US, although anything other than none will do.

Because we are only interested in server authentication (one-way SSL), the
server connection channel must specify SSLCAUTH(OPTIONAL).


To alter the client and server connection definitions, use the runmqsc command
(or WebSphere MQ Explorer) on the queue manager machine, as shown in
Example 2-11.

Example 2-11 Setting channels for SSL server authentication
C:>runmqsc SSLQM
alter chl(SSL.CLIENTS) chltype(svrconn) sslciph(triple_des_sha_us)
sslcauth(optional)
1 : alter chl(SSL.CLIENTS) chltype(svrconn)
sslciph(triple_des_sha_us) sslcauth(optional)
AMQ8016: WebSphere MQ channel changed.
alter chl(SSL.CLIENTS) chltype(clntconn) sslciph(triple_des_sha_us)
2 : alter chl(SSL.CLIENTS) chltype(clntconn)
sslciph(triple_des_sha_us)
end
3 : end
2 MQSC commands read.

Note that the runmqsc command folds to uppercase any string entered without
quotation marks (it can be confusing that it does not show the echoed command
folded). This is what we want in this case. If you use quotation marks for the
cipherspec, you must enter the string in uppercase:
sslciph(TRIPLE_DES_SHA_US).

If using WebSphere MQ Explorer instead of the runmqsc command, remember to
set Authentication of parties initiating connections to Optional in the server
connection channel's SSL tab.

The change to the client connection channel updates the channel table (file
AMQCLCHL.TAB) in your queue manager's @ipcc directory.

Copy the channel table (or FTP binary) to the client directory (C:MQCLIENT) in
the client machine.


We are ready to test the client with SSL server authentication. Perform the
following steps:
1. On the client machine, switch to the command prompt window. Verify that the
necessary environment variables are set, as shown in Example 2-12.

Example 2-12 Checking the environment variables
C:MQCLIENT>set mq
mqchllib=C:MQCLIENT

2. Run amqsputc and amqsgetc to test the SSL connection, as shown in
Example 2-13.

Example 2-13 Testing the SSL server authentication
target queue is Q1
test msg 1

Sample AMQSPUT0 end

no more messages
Sample AMQSGET0 end

If the programs run successfully, it means that the client channel works with SSL.

We are now ready to set up client authentication (two-way SSL).

2.5 SSL client authentication
SSL client authentication means that the client has a certificate assigned, which
it presents to the server when the channel starts.

To set up client authentication, we need to perform the following steps:
1. Create a self-signed certificate for the client.
2. Add the certification authority certificate to the queue manager.
3. Change the server connection channel to request client authentication.
4. Re-test.


2.5.1 Creating a self-signed certificate for the client
This is the same as creating a self-signed certificate for the queue manager. The
only difference is that we run it from the client machine. To create a self-signed
certificate for the client:
1. On the client machine, open a Windows command prompt and enter
strmqikm.
2. Click the Open icon (or select Key Database File → Open).
3. Provide the following values (Figure 2-9):
Click OK.

Figure 2-9 Open key repository

4. Enter the password when prompted. Click OK.
5. If the GUI shows the certification authority certificates, use the top-right menu
to switch to viewing Personal Certificates.
Click New Self-Signed Certificate (bottom-right corner).
6. Fill in the certificate attributes:
– Key Label: ibmwebspheremq followed by the lowercase user ID
In our case: ibmwebspheremqemir
– Common Name: emir
(You might have a different naming convention for the common name; feel
– Organization: ibm (or your company's name)



Now the WebSphere MQ client has a certificate, which it presents to the queue
manager when the client connects. To validate the client's certificate, the queue
manager needs the certification authority (CA) certificate.

– File Name: <user ID>.arm
In our case: emir.arm
Click OK.
This creates a file called <user ID>.arm in C:MQCLIENT, as shown in
Example 2-14.

Example 2-14 Extracted certification authority certificate
C:MQCLIENT>dir
Volume in drive C is IBM_PRELOAD
Volume Serial Number is F48A-0639

Directory of C:MQCLIENT

27/06/2006 15:56 <DIR> .
27/06/2006 15:56 <DIR> ..
27/06/2006 15:12 4,008 AMQCLCHL.TAB
27/06/2006 15:56 694 emir.arm
27/06/2006 15:54 80 key.crl
27/06/2006 15:54 125,080 key.kdb
27/06/2006 15:54 80 key.rdb
27/06/2006 13:58 129 key.sth
27/06/2006 14:31 92 SSL.cmd
27/06/2006 13:24 694 sslqm.arm

3. Close the repository (Key Database File → Close).

Now, you must transfer the CA Certificate file to the queue manager's key
repository.


2.5.2 Installing the CA part in the queue manager's key repository
This task consists of the following steps, executed on the queue manager
machine:
1. Copy or transfer the CA (<user ID>.arm) file to the client.
2. Add the CA file to the queue manager's key repository.

1. Copy (or FTP ASCII) the CA certificate file (<user ID>.arm) from the client's
C:MQCLIENT directory to the queue manager's ssl directory. This is
<MQdir>QmgrsSSLQMssl.
2. On the queue manager machine, open a command prompt window.
Enter strmqikm.
3. Click the Open icon (or select Key Database File → Open).
4. Open the key.kdb file in <MQdir>QmgrsSSLQMssl. Click OK.
5. Enter the password when prompted. Click OK.
6. After opening the key repository, the GUI shows the Personal Certificates.
Switch to viewing Signer Certificates.
7. In the next window, enter:
– Certificate file name: <user ID>.arm
– Location: <MQdir>QmgrsSSLQMssl
Click OK.


8. When prompted to enter a label for the certificate, enter the client's user ID.
(You can enter any name you want; just make sure it lets you identify the CA
certificate as belonging to the client.) Click OK.
Figure 2-10.

Figure 2-10 Certification authority certificate

10.Close the iKeyman GUI.

At this point, the client has a certificate and the queue manager has the
corresponding CA certificate. We are ready to set up client SSL (two-way)
authentication.

2.5.3 Testing SSL client authentication
To enable client authentication, the server connection channel must specify
SSLCAUTH(REQUIRED).


Start runmqsc (or the WebSphere MQ Explorer) on the queue manager machine,
as shown in Example 2-15.

Example 2-15 Setting channels for SSL client authentication
C:>runmqsc SSLQM

alter chl(SSL.CLIENTS) chltype(svrconn) sslcauth(required)
1 : alter chl(SSL.CLIENTS) chltype(svrconn) sslcauth(required)
end
2 : end
One MQSC command read.

We are ready to test the client again:
1. On the client machine, switch to the command prompt window.
2. Verify that the necessary environment variables are set, as shown in
Example 2-16.

Example 2-16 Checking the environment variables
C:MQCLIENT>set mq
mqchllib=C:MQCLIENT

3. Run amqsputc and amqsgetc to test the SSL connection, as shown in
Example 2-17.
If amqsputc fails with MQCONN ended with reason code 2393 or MQCONN ended
with reason code 2059, stop and start the queue manager.

Example 2-17 Testing the SSL client authentication
target queue is Q1
test two-way auth

Sample AMQSPUT0 end



message <test two-way auth>
no more messages
Sample AMQSGET0 end

If the programs run successfully, it means that the client channel works with SSL.

This concludes the setup of a WebSphere MQ SSL Windows client with mutual
authentication.


3

Chapter 3. WebSphere MQ SSL on
z/OS, AIX 5L, and Windows
When users set up WebSphere MQ SSL channels that do not cross company
boundaries, the company can act as its own certification authority and create and
dispense certificates for its queue managers.

z/OS installations that act as certificate authorities typically use RACF to
generate and sign certificates.

This chapter provides a step-by-step guide to setting up a WebSphere MQ SSL
configuration that uses RACF on z/OS to create certificates for z/OS, AIX 5L, and
Windows queue managers.


3.1 Introduction
Figure 3-1 shows a diagram of the WebSphere MQ SSL configuration we want to
create.

z/OS z/OS

QMGR WI04 QMGR WI05

AIX

QMGR AIX1

Windows Windows

QMGR WIN1 QMGR WIN2

Figure 3-1 Queue manager configuration

We build the configuration in the following order:
1. Create certification authority certificates. See 3.2, “Certification authority
setup” on page 47.
2. Set up SSL channels between two z/OS queue managers. See 3.3, “z/OS to
z/OS” on page 55.
3. Set up SSL channels between a z/OS queue manager and a Windows queue
manager. See 3.4, “z/OS to Windows” on page 71.
4. Set up SSL channels between a z/OS queue manager and an AIX 5L queue
manager. See 3.5, “z/OS to AIX 5L” on page 84.
5. Set up SSL channels between an AIX 5L queue manager and a Windows
queue manager. See 3.6, “AIX 5L to Windows” on page 96.
6. Set up SSL channels between two Windows queue managers. See 3.7,
“Windows to Windows” on page 105.


3.2 Certification authority setup
This section explains how to set up a certification authority using RACF.

Certification paths and naming conventions
Before we can create certificates for a queue manager, we must have a
certification authority certificate that we use to sign, that is, authenticate, the
queue manager certificates.

Each certificate has a unique label. In this example, we use the certificate labels
listed in Table 3-1. (You probably want to use labels that better suit your
organization.)

Table 3-1 Certificate naming convention
Type Label Description

Root MQ Root CA Self-signed certificate. All other
certificates are signed with this.

Personal (for z/OS queue ibmWebSphereMQqmgr_name Certificate for a z/OS queue manager.
managers) Note that the label must follow the
format shown.

Personal (for Windows and ibmwebspheremqqmgr_name Certificate for Windows and UNIX
UNIX® queue managers) queue managers. The label is similar
to that of z/OS, but must be all
lowercase.

Each certificate has an associated distinguished name: an X.509-format name
that uniquely identifies the certificate owner.

An example of an X.509 distinguished name is:
Common name: Emir Garza
Title: IT Specialist
Organizational unit: Software Group Services
Organization: IBM
Locality: Hursley
State or province: Hampshire
Country: UK

Chapter 3. WebSphere MQ SSL on z/OS, AIX 5L, and Windows 47

Only the common name and organization are required for SSL certificates; all
other fields are optional. Our naming convention for distinguished name is listed
in Table 3-2. (Again, you might prefer to follow conventions that better suit your
organization.)

Table 3-2 Naming convention used here
Root Personal

Common name SWGS WMQ queue manager name

Organization IBM IBM

3.2.1 Creating a root certificate
To create a root certificate:
1. Log in to z/OS. Go to ISPF option 6 (TSO commands).
2. Enter racdcert (without arguments) to check whether you are authorized to
work with certificates. You get one of these two replies:
No certificate information was found for user userid

Digital certificate information for user <your TSO userid>:
[list of certificates follows]
If you are not authorized, you get the following message:
You are not authorized to issue the RACDCERT command.
RACDCERT also gives the following information on SYSLOG:
ICH408I USER(userid) GROUP(TSOUSER ) NAME(GARZA, E (EMIR) )
FULL VIOLATION ON COMMAND RACDCERT
Ask your systems programmer to give you authority to racdcert. If that is not
possible, ask your system programmer to create the certificates for you.
3. Go to the RACF ISPF panel. (How you do that is different in each system. Ask
your system programmer if it is not obvious from the ISPF main menu.) You
get the panel shown in Example 3-1. What you need to type is in bold in the
examples. Type 7. Press Enter.

Example 3-1 Main RACF menu
RACF - SERVICES OPTION MENU
OPTION ===> 7

SELECT ONE OF THE FOLLOWING:

1 DATA SET PROFILES


2 GENERAL RESOURCE PROFILES

3 GROUP PROFILES AND USER-TO-GROUP CONNECTIONS

4 USER PROFILES AND YOUR OWN PASSWORD

5 SYSTEM OPTIONS

6 REMOTE SHARING FACILITY

7 DIGITAL CERTIFICATES AND KEY RINGS
99 EXIT

4. You see the panel shown in Example 3-2. Type 1. Press Enter.

Example 3-2 Digital Certificates and Related Services
RACF - Digital Certificates and Related Services
OPTION ===> 1

Select one of the following:

Digital Certificate Services
1. Generate a certificate and a public/private key pair.
2. Create a certificate request.
3. Write a certificate to a data set.
4. Add, Alter, Delete, or List certificates or
check whether a digital certificate has been added to
the RACF database and associated with a user ID.
5. Renew a certificate.

Key Ring Services
6. Create, List, or Delete an entire key ring or
Connect or Remove a certificate to/from a key ring.

Certificate Name Filtering Services
7. Add, Alter, Delete, or List certificate name filters
associated with a user ID.


5. Fill in the values to generate a digital certificate.
Fill in the values shown in Example 3-3. Press PF8 (down) to scroll to the next
panel.

Example 3-3 Generate a Digital Certificate
RACF - Generate a Digital Certificate
COMMAND ===>

Personal Certificate
(user ID) or Site or Authority
Certificate Type => ________ => _ => x

Enter the name of the data set which contains the PKCS10 request data:
____________________________________________
More: +
Enter the following information about the Signing Authority:
(Required if a PKCS10 data set name was entered above)

(default) Certificate
Signing Personal or Site or Authority
Certificate Type: _ => _ => _
and
Label(in quotes): __________________________________

Enter the Subject's X.509 Distinguished Name:

Common Name(in quotes): (ex: 'John Q. Public' )
'SWGS WMQ'

Title(in quotes): (ex: 'Systems Programmer' )
____________________________________________________

Fill in the values shown in Example 3-4. Press PF8 to scroll down.

COMMAND ===>

Certificate Type => ________ => _ => X

____________________________________________


More: - +
____________________________________________

Organizational Unit(in quotes): (ex: 'S390','MVS' )
____________________________________________________________

____________________________________________________________

Organization(in quotes): (ex: 'IBM' )
'IBM'

Locality(in quotes): (ex: 'Poughkeepsie' )
_________________________________________________________

State/Province(in quotes): (ex: 'New York' )
_______________________________________________________

There is nothing to enter in the next panel, as shown in Example 3-5. Press
PF8 (down) to scroll to the next panel.

COMMAND ===>


____________________________________________
More: - +
_______________________________________________________

Country(in quotes): (ex: 'US' )
_____________________________________________________________

Enter the decimal size of the private key:

______ (Default is 1024)

Enter any character to use IBM's crypto service provider:

_ Integrated Cryptographic Support Facility (ICSF).


Enter when the certificate is valid:

NOTBEFORE Date: YYYY-MM-DD (Default is current local date)

Fill in the values shown in Example 3-6.
By default, certificates are valid for one year from creation. We gave the CA
certificates an arbitrarily long life. Usage is Certsign; we only use this
certificate to sign others.
Press Enter to create the certificate.

COMMAND ===>


____________________________________________
More: - +
NOTBEFORE Time: HH:MM:SS (Default is 00:00:00)

NOTAFTER Date: 2025-12-31 (Default is 1 year after NOTBEFORE)
NOTAFTER Time: 23:59:59 (Default is 23:59:59)

Enter the label name that is to be assigned to this certificate:

Label(in quotes): 'MQ Root CA'

Enter the key usage (more than one may be chosen):

_ Handshake - identification during security handshakes
_ Data encrypt - encrypting data
_ Docsign - legally binding signatures
x Certsign - signs other certificates and CRLs

Note: Note that you do not get positive feedback if it worked. You only get
a message if there is an error.


3.2.2 Checking if the certificate was created
To check if the certificate was created:
1. From the RACF main certificates panel, select option 4, as shown in
Example 3-7. Press Enter.

OPTION ===> 4



Key Ring Services

Certificate Name Filtering Services
7. Add, Alter, Delete, or List certificate name filters
associated with a user ID.

2. In the panel shown in Example 3-8, select 3. Press Enter.

Example 3-8 Digital Certificate Services Main Panel
RACF - Digital Certificate Services Main Panel
OPTION ===> 3
(user ID) Site Authority
For Certificate Type ________ or _ or x
More: +
Select one of the following options:

1. Add a digital certificate to the RACF database.

2. List information for certificates and be given the
opportunity to change or delete them.


3. List a certificate using a filter and be given the opportunity
to change the trust status, label, or delete it.

4. Check whether a digital certificate has been added to the
RACF database and associated with a user ID, by entering a
data set name: ____________________________________________

Password for PKCS12 format data set(in quotes):
=> <=
=> <=
=> <=
=> <=

3. In the next panel (Example 3-9), enter the label of the certificate you just
created. Press Enter.

Example 3-9 Digital Certificate List Filtering Panel
RACF - Digital Certificate List Filtering Panel
COMMAND ===> 1

For: CERTAUTH

Select one of the following to filter the certificates

1. List by Label(in quotes):==> 'MQ Root CA' <==

2. List by Serial Number:==>

<==

Issuers Distinguished Name:(in quotes) ==>

<==


You see a panel similar to the one shown in Example 3-10.

Example 3-10 Change Status/Delete Digital Certificate
RACF - Change Status/Delete Digital Certificate
COMMAND ===>

Digital certificate information for: CERTAUTH

Enter A to Alter, D to Delete, next to the Label field,
then press PF3 to process.
More: +
Action Certificate information
------ -----------------------

_ Label:MQ Root CA
Certificate ID:2QiJmZmDhZmjgdTYQNmWlqNAw8FA
Status:TRUST
Start Date:2006/06/28 00:00:00
End Date: 2025/12/31 23:59:59
Serial Number:00

Issuer's Name:CN=SWGS WMQ.O=IBM

Subject's Name:CN=SWGS WMQ.O=IBM

This concludes the creation of the root CA certificate.

3.3 z/OS to z/OS
This section explains how to set up SSL channels between two z/OS queue
managers.


Assumptions
The instructions that follow assume the configuration listed in Table 3-3.

Queue manager name WI04 WI05

Queue manager user ID EMIR EMIR

CHINIT user ID EMIR EMIR

Host name winmvs60 winmvs60


Key ring name WI04 WI05

Ensure that you have a working sender/receiver channel pair between the two
queue managers.

Example CSQUTIL JCL to set up channels
This section provides example CSQUTIL JCL to set up the channels.

Example 3-11 provides an example for queue manager WI04.

Example 3-11 JCL for WI04
//CSQUTIL EXEC PGM=CSQUTIL,PARM=WI04
//STEPLIB DD DISP=SHR,DSN=MQM.V600.SCSQANLE
// DD DISP=SHR,DSN=MQM.V600.SCSQAUTH
// DD DISP=SHR,DSN=MQM.V600.SCSQLOAD
//CSQUCMD DD *
DEF QL(WI05) REPLACE USAGE(XMITQ) TRIGGER +
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WI04.WI05)
DEF CHL(WI04.WI05) CHLTYPE(SDR) REPLACE +
CONNAME('WINMVS60(20005)') XMITQ(WI05)
DEF CHL(WI05.WI04) CHLTYPE(RCVR) REPLACE
DEF QL(WI04.Q1) REPLACE
DEF QR(WI05.Q1) REPLACE +
RNAME(WI05.Q1) RQMNAME(WI05)
//SYSIN DD *
COMMAND TGTQMGR(WI04) DDNAME(CSQUCMD)
//SYSPRINT DD SYSOUT=*


Example 3-12 provides an example for queue manager WI05.

//CSQUCMD DD *
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WI05.WI04)
DEF CHL(WI05.WI04) CHLTYPE(SDR) REPLACE +
DEF CHL(WI04.WI05) CHLTYPE(RCVR) REPLACE
//SYSIN DD *

Task summary
To set up SSL channels between two z/OS queue managers:
1. Enable SSL on the queue managers.
2. Create certificates and assign them to each queue manager.
3. Alter the channel definitions to activate SSL.

The following instructions apply to both queue managers. You might prefer to do
the complete setup for one queue manager and then come back to this point and
repeat these instructions for the other.

3.3.1 Enabling SSL on the queue managers
This section describes how to enable SSL on the queue managers.


Creating a key repository (“key ring”) for the queue manager
Key rings contain the certificates that queue managers use. Perform the
following steps:
1. Using the RACF panels, select option 7 (DIGITAL CERTIFICATES AND KEY
RINGS), and then option 6 (Create, List, or Delete an entire key ring), as
shown in Example 3-13. Press Enter.

OPTION ===> 6



Key Ring Services
…

2. You see the panel shown in Example 3-14. Select 1. EMIR is the user ID of the
channel initiator address space. Press Enter.

Example 3-14 Digital Certificate Key Ring Services
RACF - Digital Certificate Key Ring Services
OPTION ===> 1

For user: EMIR

Enter one of the following at the OPTION line:

1 Create a new key ring
2 Delete an existing key ring
3 List existing key ring(s)
4 Connect a digital certificate to a key ring
5 Remove a digital certificate from a key ring


3. Enter the key ring name in the next panel, as shown in Example 3-15. We use
the queue manager name as the key ring name; you can use a different
convention. Press Enter.

Example 3-15 Digital Certificate Key Ring Name
RACF - Digital Certificate Key Ring Name
COMMAND ===>

Enter a ring name:

WI04______________________________________________
____________________________________________________________
____________________________________________________________
_________________________________________________________

A ring name may not be a single asterisk * and
blanks are not allowed.

You see this ISPF message:
Key Ring WI04 has been successfully added

Connecting the CA certificate to the key ring
To connect the CA certificate to the key ring:
1. From the Key Ring Services panel (Example 3-16), select 4 (Connect a digital
certificate to a key ring). Press Enter.

OPTION ===> 4

For user: EMIR




2. In the next panel (Example 3-17), enter the Ring Name. Press Enter.

Example 3-17 Connect a Digital Certificate to a Key Ring
RACF - Connect a Digital Certificate to a Key Ring
COMMAND ===>

Ring Owner: EMIR

Ring Name: WI04______________________________________________________

____________________________________________________________

____________________________________________________________
_________________________________________________________

Personal
(user ID) or Site or Certificate Authority
Certificate Type => ________ => _ => x

Label name: 'MQ Root CA'________________ (in quotes)

Personal or Site or Certificate Authority
Usage => _ => _ => x

Default => _ (blank defaults to NO)

You get this message:
Certificate successfully connected to key ring.

Assigning the key ring and enabling the SSL tasks
To assign the key ring and enable SSL tasks:
1. Using the WebSphere MQ ISPF panels, select action 3 (Alter), object type
manager. Press Enter.
2. Then press PF8 until you see the panel shown in Example 3-18. Enter the
values shown. Press Enter to make the change.

Example 3-18 Alter a Queue Manager
Alter a Queue Manager - 3
Command ===>

Press F7 or F8 to see other fields, or Enter to alter queue manager.


More: - +
Queue manager name . . . . : WI04

SSL authentication namelist
name . . . . . . . . . . . .
SSL key repository
. . . . . WI04

SSL server tasks . . . . . . 5 0 - 9999

Important: These changes are not permanent. Depending on your CSQINP2
setup, your queue manager might revert to no key ring and zero SSL tasks at
the next restart.

Making these changes permanent
To make these changes permanent:
1. From the SDSF DA panel, enter ? next to the queue manager job, as shown
in Example 3-19.

Example 3-19 SDSF display active
SDSF DA MV60 MV60 PAG 0 SIO 3 CPU 2
COMMAND INPUT ===>
NP JOBNAME StepName ProcStep JobID Owner
? WI04MSTR WI04MSTR PROCSTEP STC01815 EMIR
WI04CHIN WI04CHIN PROCSTEP STC01816 EMIR

2. Press Enter and select JES2JCL, as shown in Example 3-20.

Example 3-20 Queue manager JES2 files
SDSF JOB DATA SET DISPLAY - JOB WI04MSTR (STC01815)
COMMAND INPUT ===>
NP DDNAME StepName ProcStep DSID Owner C Dest
JESMSGLG JES2 2 EMIR C
s JESJCL JES2 3 EMIR C
JESYSMSG JES2 4 EMIR C
CSQOUT1 WI04MSTR 101 EMIR A
CSQOUT2 WI04MSTR 102 EMIR A


3. Locate the xxxxINYG member of the CSQINP2 concatenation, as shown in
Example 3-21.

Example 3-21 Queue manager JES2 JCL
XXCSQINP2 DD DSN=WI04BRK.MQSI.JCL(WI04INSG),DISP=SHR
XX DD DSN=WI04BRK.MQSI.JCL(WI04INSX),DISP=SHR
XX DD DSN=WI04BRK.MQSI.JCL(WI04INSS),DISP=SHR
XX DD DSN=WI04BRK.MQSI.JCL(WI04INYG),DISP=SHR
XX* DD DSN=WI04BRK.MQSI.JCL(WI04INYC),DISP=SHR
XX* DD DSN=WI04BRK.MQSI.JCL(WI04INYD),DISP=SHR
XX DD DSN=WI04BRK.MQSI.JCL(WI04DISP),DISP=SHR

4. Edit the INYG member. It contains the ALTER QMGR statement shown in
Example 3-22.

Example 3-22 INYG member
ALTER QMGR +
...
SSLKEYR( ' ' ) +
...
SSLTASKS( 0 ) +
...

5. Change the SSLKEYR and SSLTASKS attributes as shown in Example 3-23.

Example 3-23 INYG member (updated)
ALTER QMGR +
...
SSLKEYR( 'WI04' ) +
...
SSLTASKS( 5 ) +
...

6. Give the CHINIT user ID RACF access to the key ring.
You must do this (or ask your system programmer to do it for you), even if
your CHINIT user ID has the RACF SPECIAL attribute. See Example 3-2 on
page 49.

Example 3-24 RACF access to key ring
rdef FACILITY IRR.DIGTCERT.** UACC(NONE)
PE IRR.DIGTCERT.** CL(FACILITY) ID(EMIR) ACC(CONTROL)
SETROPTS RACLIST(FACILITY) REFRESH


7. If necessary, update the CHINIT JCL. The channel initiator needs access to
the z/OS Cryptographic Services. These are in the SGSKLOAD library
(before z/OS 1.6) or SIEALNKE, usually SYS1.SIEALNKE, from z/OS 1.6.
Ask your systems programmer if SGSKLOAD (or SIEALNKE) is in LPA. If it
is, there is nothing to do. If it is not, add it to STEPLIB in the channel initiator
JCL.
8. Stop and start the channel initiator. You see the following message when the
channel initiator restarts:
CSQX151I =WI05 CSQXSSLI 5 SSL server subtasks started, 0 failed

This completes the initial queue manager SSL setup. Repeat these steps for the
other queue manager.

3.3.2 Creating the queue manager certificate
To create the queue manager certificate:
1. From the RACF certificates panel, select 1 (Generate a certificate).
2. Fill in the Generate a Digital Certificate panel.
Enter the values shown in Example 3-25. Press PF8.

COMMAND ===>

Certificate Type => emir____ => _ => _

____________________________________________
More: +

Certificate Type: _ => _ => x
and
Label(in quotes): 'MQ Root CA'________________



'WI04'____________________________________________________________

________________________________________________________________

We are creating a certificate signed with the root certificate we created earlier
(that is, the certificate is encrypted with the certification authority private key).
Fill in the values shown in Example 3-26 and press PF8.

COMMAND ===>

Certificate Type => EMIR____ => _ => _

____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
____________________________________________________________

'IBM'____________________________________________________________

__________________________________________________________________

__________________________________________________________________


There is nothing to enter on the next panel, as shown in Example 3-27. Press
PF8

COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________


______ (Default is 1024)





Notice the label. We must use a label of the format ibmWebSphereMQ followed
by the queue manager name. The case is significant. Enter the label exactly
as shown in Example 3-28 (uppercase W, S, MQ, and uppercase queue
manager name). Press Enter to create the certificate.

COMMAND ===>



____________________________________________
More: - +

NOTAFTER Time: HH:MM:SS (Default is 23:59:59)


Label(in quotes): 'ibmWebSphereMQWI04'______________


x Handshake - identification during security handshakes
_ Certsign - signs other certificates and CRLs

You only receive a response if the command fails.

3.3.3 Connecting the certificate to the key ring
Connect the newly created certificate to the queue manager’s key ring:
1. From the RACF Certificates panel, select option 6 (Key ring services).
2. Fill in the panel as shown in Example 3-29.

OPTION ===> 4

For user: emir____




3. Emir is the user ID the queue manager and channel initiator run under.
Provide the values shown in Example 3-30. Press Enter.

Example 3-30 Connect a Digital Certificate to a Key Ring
RACF - Connect a Digital Certificate to a Key Ring
COMMAND ===>

Ring Owner: EMIR

Ring Name:
WI04________________________________________________________

____________________________________________________________

____________________________________________________________
_________________________________________________________

Personal
(user ID) or Site or Certificate Authority

Label name: 'ibmWebSphereMQWI04'______________ (in quotes)

Personal or Site or Certificate Authority
Usage => x => _ => _

Default => _ (blank defaults to NO)

You see this message:
Certificate successfully connected to key ring.
4. Restart the channel initiator.
Check that the messages shown in Example 3-31 appears in the job log.

Example 3-31 Restart channel initiator
+CSQX080I =WI04 CSQXGIP SSLTASKS=5, SSLRKEYC=0
+CSQX081I =WI04 CSQXGIP SSLKEYR=WI04
…
+CSQX151I =WI04 CSQXSSLI 5 SSL server subtasks started, 0 failed

This concludes the creation and assignment of the certificate to the queue
manager. Remember to repeat these instructions for the other queue manager.


3.3.4 Altering the channel attributes
From the WebSphere MQ ISPF panels (Example 3-32), alter the sender channel
attributes (see “Using WebSphere MQ Explorer” on page 70 for doing this using
in the WebSphere MQ Explorer).

Example 3-32 Alter a Sender Channel
Alter a Sender Channel - 4
Command ===>

Press F7 or F8 to see other fields, or Enter to alter channel.

More: - +
Channel name . . . . . . . : WI04.WI05
Disposition . . . . . . . . : QMGR WI04

SSL cipher specification . . NULL_MD5
SSL peer name
. . . . .

Header compression . . . . . N and . . . N=None, S=System
Message compression . . . . . N and . . . N=None, R=RLE,
and . . . and . . . F=ZlibFast, H=ZlibHigh

When the SSL cipher specification (called cipherspec) is set to anything other
than blank, the receiver channel must present a certificate to the sender (so that
the sender authenticates the receiver's identity). Optionally, the receiver channel
can request that the sender also presents a certificate (thus achieving mutual
authentication).

When the channels establish the SSL session, they exchange a randomly
generated key that they use to sign and (optionally) to encrypt the messages.

A NULL_MD5 cipherspec means no encryption (NULL) and signing with the MD5
algorithm.


Alter the corresponding receiver channel on the other queue manager, as shown
in Example 3-33.

Example 3-33 Alter a Receiver Channel
Alter a Receiver Channel - 3
Command ===>

Press F7 or F8 to see other fields, or Enter to alter channel.

More: - +
Channel name . . . . . . . : WI04.WI05
Disposition . . . . . . . . : QMGR WI05

SSL cipher specification . . NULL_MD5
SSL peer name
. . . . .

SSL certificate required . . Y Y=Yes, N=No

Header compression . . . . . N and . . . N=None, S=System
Message compression . . . . . N and . . . A=Any, N=None, R=RLE,
and . . . and . . . F=ZlibFast, H=ZlibHigh
and . . .

The SSL certificate required option is Yes by default. That is, the receiver wants
to authenticate the sender's identity.

Repeat for the other sender/receiver channel pair (in this example, channel
WI05.WI04).


Using WebSphere MQ Explorer
You can use WebSphere MQ Explorer instead of ISPF panels if you prefer. To
use WebSphere MQ Explorer:
1. Connect your WebSphere MQ Explorer to the two queue managers and set
the sender channel SSL properties as shown in Figure 3-2.

Figure 3-2 Sender channel on WI04


2. Alter the receiver channel SSL attributes as shown in Figure 3-3.

Figure 3-3 Receiver channel on WI05

3. Repeat the prior step for the channel WI05.WI04.
4. Stop and start the channels.
The channels should start, meaning they have successfully exchanged the
SSL certificates.

This concludes the setup of SSL channels between two z/OS queue managers.

3.4 z/OS to Windows
This section describes how to set up SSL channels between a z/OS queue
manager and a Windows queue manager.


Assumptions

Platform z/OS Windows

Queue manager name WI04 WIN1

Queue manager user ID EMIR EMIR

CHINIT user ID EMIR N/A

Host name winmvs60 garzae


queue managers.

Example CSQUTIL JCL for WI04
Example 3-34 provides example CSQUTIL JCL for WI04.

//CSQUCMD DD *
DEF QL(WIN1) REPLACE USAGE(XMITQ) TRIGGER +
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WI04.WIN1)
DEF CHL(WI04.WIN1) CHLTYPE(SDR) REPLACE +
CONNAME('GARZAE(20001)') XMITQ(WIN1)
DEF CHL(WIN1.WI04) CHLTYPE(RCVR) REPLACE
DEF QR(WIN1.Q1) REPLACE +
RNAME(WIN1.Q1) RQMNAME(WIN1)
//SYSIN DD *


Example MQSC for WIN1
Example 3-35 provides example MQSC for WIN1.

Example 3-35 MQSC for WIN1
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WIN1.WI04)
DEF CHL(WIN1.WI04) CHLTYPE(SDR) REPLACE +
DEF CHL(WI04.WIN1) CHLTYPE(RCVR) REPLACE
DEF QL(WIN1.Q1) REPLACE

Task summary
To set up SSL channels between a z/OS and a Windows queue manager, we
perform the tasks listed in Table 3-5.

Table 3-5 Task summary
Task Comments

1. Enable SSL on the z/OS queue Already done when setting up SSL between two z/OS queue
manager. managers.
See 3.3.1, “Enabling SSL on the queue managers” on page 57.

2. Create a certificate and assign it Already done when setting up SSL between two z/OS queue
to the z/OS queue manager. managers.
See:
3.3.2, “Creating the queue manager certificate” on page 63
3.3.3, “Connecting the certificate to the key ring” on page 66

3. Use RACF to create a certificate See 3.4.1, “Creating a certificate for WIN1” on page 74.
for the Windows queue manager.

4. Export the certificate from RACF. See 3.4.2, “Exporting the certificate from RACF” on page 77.

5. Download (FTP) the certificate to See 3.4.3, “Downloading the certificate to Windows” on page 78.
Windows.

6. Create a key repository for the See 3.4.4, “Creating a key repository for WIN1” on page 79.
Windows queue manager.

7. Import the certificate in Windows. See 3.4.5, “Importing the certificate” on page 79.

8. Alter the channel definitions to See 3.4.6, “Altering the channel attributes” on page 83.
start using SSL.


3.4.1 Creating a certificate for WIN1
To create a certificate for WIN1:

COMMAND ===>


____________________________________________
More: +

and


'WIN1'____________________________________________________________

_________________________________________________________________


COMMAND ===>




____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
____________________________________________________________

'IBM'____________________________________________________________

__________________________________________________________________

__________________________________________________________________

There is nothing to enter in the next panel, as shown in Example 3-38. Press
PF8.

COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________


______ (Default is 1024)






Enter the values shown in Example 3-39. Press Enter.

COMMAND ===>


____________________________________________
More: - +



Label(in quotes): 'ibmwebspheremqwin1'______________





3.4.2 Exporting the certificate from RACF
To export the certificate from RACF:
1. From the RACF certificates panel, select option 3 (Write a certificate to a data
set).
2. Fill in the Write a Certificate to a Data Set panel.
Enter the values shown in Example 3-40. RACF exports the key to a data set
called userid.SSLKEY.WIN1. Press PF8.

Example 3-40 Export a certificate
RACF - Write a Certificate to a Data Set
COMMAND ===>

More: +
Enter the label name of the certificate:
'ibmwebspheremqwin1'______________ (in quotes)

Enter the data set name to which the certificate is to be written:
sslkey.win1_________________________________

Enter any character to indicate the Certificate Format Type:

_ DER encoded X.509
_ Base64 encoded X.509 (default)
x DER encoded PKCS12
_ Base64 encoded PKCS12
_ DER encoded PKCS7

Fill in the values shown in Example 3-41. Note that you must enter/reenter a
password (in quotation marks). You need the password later when you import
the certificate. Press Enter.

COMMAND ===>



More: -
_ DER encoded X.509
_ DER encoded PKCS7

Password for PKCS12 format data set (in quotes):
=> 'password' [not visible] <=

Re-enter password to verify (in quotes):

If the command worked, you see (ISPF option 3.4) the data set
userid.SSLKEY.WIN1.

3.4.3 Downloading the certificate to Windows
Use FTP to download the exported certificate to Windows (Example 3-42). We
place the exported certificate in the queue manager's ssl directory
(<MQDir>QmgrsWIN1ssl).

Example 3-42 Download the certificate
C:MQV6QmgrsWIN1ssl>ftp winmvs60
Connected to winmvs60.hursley.ibm.com.
220-FTPD1 IBM FTP CS V1R7 at WINMVS60.HURSLEY.IBM.COM, 14:14:50 on
2006-06-29.
220 Connection will close if idle for more than 5 minutes.
User (winmvs60.hursley.ibm.com:(none)): emir
331 Send password please.
Password:
230 EMIR is logged on. Working directory is "EMIR.".
ftp> cd sslkey
250 "EMIR.SSLKEY." is the working directory name prefix.
ftp> bin
200 Representation type is Image
ftp> get win1 WIN1.p12
200 Port request OK.
125 Sending data set EMIR.SSLKEY.WIN1
250 Transfer completed successfully.
ftp: 2316 bytes received in 0.02Seconds 115.80Kbytes/sec.
ftp> bye
221 Quit command received. Goodbye.


Note the binary file transfer and the file extension (p12) of the exported
certificate.

3.4.4 Creating a key repository for WIN1
The following instructions show how to create a key repository for queue
manager WIN1.

This is already described in detail in Chapter 1, “Connecting two Windows queue
managers using SSL” on page 1, so this section omits the screen captures.

New and create a repository as follows:
– Location: <MQdir>QmgrsWIN1ssl
In this example: C:MQV6QmgrsWIN1ssl
Click OK.
3. Enter a password (and remember it, because you need it later) and select
Stash the password to a file? Click OK.
4. You see a message saying that the password was encrypted and saved.
Click OK.

You created a key repository for queue manager WIN1.

After creating the key repository, the GUI shows the installed certification
authority certificates provided with iKeyman. Use the menu (top right) to switch to
viewing Personal Certificates.

Do not close the iKeyman GUI.

3.4.5 Importing the certificate
We now import the certificate (file WIN1.p12 in <MQDir>QmgrsWIN1ssl).
1. Click the Import button (to the right of the Personal Certificates pane). This
opens the Import Key window (Figure 3-4 on page 80).


2. Use the following values:
– Change the Key file type to PKCS12.
– Change the File Name to WIN1.p12
– Change the Location to the directory where you placed the exported
certificate (<MQDir>QmgrsWIN1ssl).
Click OK.

Figure 3-4 Import Key

3. This open the password window. Enter the password you gave when
exporting the certificate from z/OS, and then click OK.


4. You have the option to change the labels (Figure 3-5). The queue manager
(personal) certificate already has the correct label.
The certification authority certificate (which signs the personal certificate) is
the one we created as MQ Root CA on z/OS. It appears with the label
0cn=swgs wmq,o=ibm. It was exported (and will be imported) together with the
There is no need to change either of these labels, so click OK.

Figure 3-5 Change Labels


You see the queue manager's certificate shown in Figure 3-6.

Figure 3-6 Personal Certificates


5. If you switch the view to Signer Certificates (top-right corner of main pane),
you see the certification authority certificate, as shown in Figure 3-7.

Figure 3-7 Signer (CA) Certificate

6. Close the key repository by selecting Key Database File → Close.
7. Exit the iKeyman GUI.

Now both the z/OS and Windows queue managers have their certificates. To use
SSL, we need to change the channel attributes:
1. Change the cipherspec attribute to NULL_MD5 on the sender (WI04.WIN1)
and receiver (WIN1.WI04) channels on z/OS to NULL_MD5 (see 3.3, “z/OS to
z/OS” on page 55 for instructions).
2. Using WebSphere MQ Explorer, change the sender (WIN1.WI04) and
receiver (WI04.WIN1) channels to use the NULL_MD5 cipher specification:
a. Right-click the sender channel, select Properties, and select the SSL tab.
b. Select NULL_MD5 from the Standard Settings menu. Click OK.
c. Right-click the receiver channel, select Properties, and select the SSL
tab.


d. Select NULL_MD5 from Standard Settings and click OK.
3. Stop and start the channels. The channels should start, meaning they have
successfully exchanged their SSL certificates.

This concludes the setup of SSL WebSphere MQ channels between z/OS and
Windows.

3.5 z/OS to AIX 5L
This section describes how to set up SSL channels between a z/OS queue
manager and an AIX 5L queue manager.

Assumptions

Platform z/OS AIX 5L

Queue manager name WI05 AIX1

Queue manager user ID EMIR emir

CHINIT user ID EMIR n/a

Host name winmvs60 allium


queue managers.

Sample JCL for queue manager WI05
Example 3-43 shows sample JCL for queue manager WI05.

//CSQUCMD DD *
DEF QL(AIX1) REPLACE USAGE(XMITQ) TRIGGER +
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WI05.AIX1)
DEF CHL(WI05.AIX1) CHLTYPE(SDR) REPLACE +
CONNAME('ALLIUM(20001)') XMITQ(AIX1)


DEF CHL(AIX1.WI05) CHLTYPE(RCVR) REPLACE
DEF QR(AIX1.Q1) REPLACE +
RNAME(AIX1.Q1) RQMNAME(AIX1)
//SYSIN DD *

Sample MQSC commands for queue manager AIX1
Example 3-44 shows sample MQSC commands for queue manager AIX1.

Example 3-44 MQSC for AIX1
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(AIX1.WI05)
DEF CHL(AIX1.WI05) CHLTYPE(SDR) REPLACE +
DEF CHL(WI05.AIX1) CHLTYPE(RCVR) REPLACE
DEF QL(AIX1.Q1) REPLACE

Task summary
Table 3-7 provides a task summary.

Task Comments

1. Enable SSL on the z/OS queue manager. Already done when setting up SSL between two
z/OS queue managers.
See 3.3.1, “Enabling SSL on the queue managers”
on page 57.

2. Create a certificate and assign it to the z/OS Already done when setting up SSL between two
queue manager. z/OS queue managers.
See:
3.3.2, “Creating the queue manager certificate”
on page 63
3.3.3, “Connecting the certificate to the key
ring” on page 66

3. Use RACF to create a certificate for the AIX 5L See 3.5.1, “Creating a certificate for the AIX 5L
queue manager. queue manager” on page 86.

4. Export the certificate from RACF. See 3.5.2, “Exporting the certificate” on page 89.


Task Comments

5. Download (FTP) the certificate to AIX 5L. See 3.5.3, “Downloading the certificate to AIX 5L”
on page 91.

6. Create a key repository for the AIX 5L queue See 3.5.4, “Creating a key repository for AIX1” on
manager. page 91.

7. Import the certificate in AIX 5L. See 3.5.5, “Importing the certificate for AIX1” on
page 95.

8. Alter the channel definitions to start using SSL. See 3.5.6, “Altering the channel attributes” on
page 95.

3.5.1 Creating a certificate for the AIX 5L queue manager
To create a certificate for the AIX 5L queue manager:

COMMAND ===>


____________________________________________
More: +

and




'AIX1'____________________________________________________________

_________________________________________________________________



COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
____________________________________________________________

'IBM'____________________________________________________________

__________________________________________________________________

__________________________________________________________________


There is nothing to enter on the following panel, as shown in Example 3-47.
Press PF8.

COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________
__________________________________________________________________

______ (Default is 1024)





Enter the values shown in Example 3-48. Note that the label prefix in UNIX
must be all lowercase. Press Enter.

COMMAND ===>


____________________________________________
More: - +
NOTBEFORE Date: 2025-12-31 (Default is current local date)



NOTAFTER Date: YYYY-MM-DD (Default is 1 year after NOTBEFORE)


Label(in quotes): 'ibmwebspheremqaix1'______________




3.5.2 Exporting the certificate
To export the certificate:
set).
called userid.SSLKEY.AIX1. Press PF8.

COMMAND ===>

More: +
'ibmwebspheremqaix1'______________ (in quotes)

sslkey.aix1_________________________________



_ DER encoded X.509
_ DER encoded PKCS7

Note that you must enter/reenter a password (in quotation marks). You need
the password later when you import the certificate. Press Enter.

COMMAND ===>

More: -
_ DER encoded X.509
_ DER encoded PKCS7


userid.SSLKEY.AIX1.


3.5.3 Downloading the certificate to AIX 5L
Use FTP to download the exported certificate to AIX 5L. See Example 3-51. We
put it in the queue manager's ssl directory (/var/mqm/qmgrs/AIX1/ssl).

/var/mqm/qmgrs/AIX1/ssl:>ftp winmvs60
2006-06-29.
Name (winmvs60:emir): emir
Password:
ftp> cd sslkey
ftp> bin
ftp> get aix1 AIX1.p12
125 Sending data set EMIR.SSLKEY.AIX1
2316 bytes received in 0.000192 seconds (1.178e+04 Kbytes/s)
local: AIX1.p12 remote: aix1
ftp> bye

certificate.

3.5.4 Creating a key repository for AIX1
By default, the key repository for the AIX1 queue manager is in
/var/mqm/qmgrs/AIX1/ssl.

AIX 5L prerequisites
Note the following AIX 5L prerequisites.

X Window System
To run the iKeyman GUI under AIX 5L, you need Exceed (or a similar X Window
System server). Perform the following steps:
1. Start Exceed (or your X Window System server) on your PC.


2. On AIX 5L, add this line to your .profile (remember to rerun your .profile; the
easiest way is to exit and log in again):
export DISPLAY='<your PC's hostname or IP address>:0.0'
For example:
export DISPLAY='9.20.84.21:0.0'
3. To test, enter xclock:
/tmp/emir:>xclock
The clock shown in Figure 3-8 appears in the top-left corner of your PC
screen.

Figure 3-8 xclock

If you cannot run X Window System applications, use the command line.

Everything the iKeyman GUI does, you can also do from the command line,
using the command gsk7cmd. If you cannot run the iKeyman GUI (gsk7ikm),
download SupportPac™ MO04 (WebSphere MQ SSL Wizard) from the following
Web site:
http://www.ibm.com/support/docview.wss?rs=171&uid=swg24010367&loc=en_US
&cs=utf-8&lang=en

The SupportPac consists of a program that takes as input your queue manager
and channel configuration, and generates all the commands that you need to set
up SSL channels between two queue managers.


Java
Set your PATH environment variable so that it runs the JVM™ that comes with
WebSphere MQ:
PATH=/usr/mqm/ssl/jre/bin:$PATH
export PATH

Notes:
Your path might be different.
Remember to re-run your .profile (. ./profile or exit and log in again).

Check that you can run Java™ (Example 3-52).

Example 3-52 Check Java version
/tmp/emir:>java -version
java version "1.4.2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2)
Classic VM (build 1.4.2, J2RE 1.4.2 IBM AIX build ca142-20050609 (JIT
enabled: jitc))

The reason for using the JVM that comes with WebSphere MQ is that you need
the correct versions of the files shown in Example 3-53.

Example 3-53 Policy JAR files
/usr/mqm/ssl/jre/lib/security/local_policy.jar
/usr/mqm/ssl/jre/lib/security/US_export_policy.jar

At the time of writing, not all Java runtimes have these files at the level required
by iKeyman.

If you use a different JVM, you might be unable to import the queue manager
certificate into the key repository (see 3.5.5, “Importing the certificate for AIX1”
on page 95).

Follow this link for an article about how to obtain up-to-date versions of the policy
JAR files, in case you opt to use your system's standard JVM:
http://www.ibm.com/support/docview.wss?uid=swg21201170

JAVA_HOME
Your .profile must set the JAVA_HOME variable, for example:
export JAVA_HOME=/usr/mqm/ssl/jre


Notes:
We are using the Java runtime that comes with WebSphere MQ.
Remember to rerun your .profile before starting iKeyman.

AIX 5L instructions
To create a key repository:
1. Start the iKeyman GUI. Enter gsk7ikm. Note that it takes a few seconds for
the GUI to appear.
When you have not yet started the X Window System server on your PC, the
error shown in Example 3-54 occurs.

Example 3-54 X Window System error
/tmp/emir:>gsk7ikm
The java class could not be loaded. java.lang.InternalError: Can't
connect to X11 window server using '9.20.84.21:0.0' as the value of the
DISPLAY variable.

2. Select Key Database File → New. Enter the following values:
– Location: /var/mqm/qmgrs/AIX1/ssl
(This is the default used by the queue manager.)
Click OK.
3. This opens a password window. Enter a password (twice). This is to protect
the repository. (Remember this password, because you need it each time you
work with this key repository.)
Select Stash the password to a file. Click OK.
4. After a few seconds, you see the following message:
“The password has been encrypted and saved in file:
/var/mqm/qmgrs/AIX1/ssl/key.sth.”
Click OK.

This concludes the creation of the key repository for AIX1. Do not close the
iKeyman GUI.


3.5.5 Importing the certificate for AIX1
To import the certificate for AIX1:
1. The GUI should display Signer Certificates (menu in top right corner of the
main pane). Change the drop-down to Personal Certificates.
The Import button to the right becomes active. Click Import.
2. This opens the Import Keys window. Use the following values:
– Key file type: PKCS12
– File Name: AIX1.p12
– Location: The directory where you placed the exported certificate
In our case: /var/mqm/qmgrs/AIX1/ssl
Click OK.
4. You have the option to change the labels. The queue manager (personal)
certificate already has the correct label (ibmwebspheremqaix1).
There is no need to change any of these labels, so click OK.
5. You see the queue manager's certificate (label ibmwebspheremqaix1) in the
Personal Certificates view.
If you switch the view to Signer Certificates, you see the certification
authority certificate (label 0cn=swgs wmq,o=ibm).
Close the key repository by selecting Key Database File → Close.

To alter the channel attributes:
1. Change the cipherspec attribute to NULL_MD5 on the sender (WI05.AIX1)
and receiver (AIX1.WI05) channels on z/OS (see 3.3, “z/OS to z/OS” on
page 55 for instructions).


2. On AIX 5L, change the sender (AIX1.WI05) and receiver (WI05.AIX1)
channels to use the NULL_MD5 cipher specification. Use WebSphere MQ
Explorer, or the MQSC commands shown in Example 3-55.

Example 3-55 Alter the channel
alter chl('AIX1.WI05') chltype(sdr) sslciph('NULL_MD5')
alter chl('WI05.AIX1') chltype(rcvr) sslciph('NULL_MD5')


This concludes the setup of SSL WebSphere MQ channels between z/OS and
AIX 5L.

3.6 AIX 5L to Windows
The section describes how to set up SSL channels between an AIX 5L queue
manager and a Windows queue manager.

Assumptions

Platform AIX 5L Windows

Queue manager name AIX1 WIN2

Queue manager user ID emir emir

CHINIT user ID n/a n/a

Host name allium garzae


queue managers.

Example MQSC to set up the channels
The section provides example MQSC to set up the channels.


Example 3-56 provides an example for queue manager AIX1.

Example 3-56 MQSC for AIX1
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(AIX1.WIN2)
DEF CHL(AIX1.WIN2) CHLTYPE(SDR) REPLACE +
CONNAME('garzae(20002)') XMITQ(WIN2)
DEF CHL(WIN2.AIX1) CHLTYPE(RCVR) REPLACE
DEF QL(AIX1.Q1) REPLACE

Example 3-57 provides an example for queue manager WIN2.

DEF QL(AIX1) REPLACE USAGE(XMITQ) TRIGGER +
INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WIN2.AIX1)
DEF CHL(WIN2.AIX1) CHLTYPE(SDR) REPLACE +
CONNAME('allium(20001)') XMITQ(AIX1)
DEF CHL(AIX1.WIN2) CHLTYPE(RCVR) REPLACE
DEF QR(AIX1.Q1) REPLACE +
RNAME(AIX1.Q1) RQMNAME(AIX1)

Task summary
Table 3-9 shows a summary of the necessary tasks.

Task Comments

1. Use RACF to create a certificate for the AIX 5L Already done when setting up SSL between z/OS
queue manager. and AIX 5L. See 3.5.1, “Creating a certificate for the
AIX 5L queue manager” on page 86.

2. Export the certificate from RACF. Already done when setting up SSL between z/OS
and AIX 5L. See 3.5.2, “Exporting the certificate” on
page 89.

3. Download (FTP) the certificate to AIX 5L. Already done. See 3.5.3, “Downloading the
certificate to AIX 5L” on page 91.

4. Create a key repository for queue manager Already done. See 3.5.4, “Creating a key repository
AIX1. for AIX1” on page 91.


Task Comments

5. Import the certificate for queue manager AIX1. Already done. See 3.5.5, “Importing the certificate
for AIX1” on page 95.

6. Use RACF to create and export a certificate for See 3.6.1, “Creating a certificate for the Windows
the Windows queue manager. queue manager” on page 98 and 3.6.2, “Exporting
the certificate” on page 101.

7. Download (FTP) the certificate to Windows. See 3.6.3, “Downloading the certificate to
Windows” on page 102.

8. Create a key repository for the Windows queue See 3.6.4, “Creating a key repository for WIN2” on
manager. page 103.

9. Import the certificate into Windows. See 3.6.5, “Importing the certificate” on page 104.

10. Alter the channel definitions to start using SSL. See 3.6.6, “Altering the channel attributes” on
page 105.

3.6.1 Creating a certificate for the Windows queue manager
To create a certificate for the Windows queue manager:

COMMAND ===>


____________________________________________
More: +

and




'WIN2'____________________________________________________________

__________________________________________________________________


COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
__________________________________________________________________
____________________________________________________________

'IBM'____________________________________________________________

__________________________________________________________________

__________________________________________________________________


There is nothing to enter on the next panel, as shown in Example 3-60. Press
PF8.

COMMAND ===>


____________________________________________
More: - +
__________________________________________________________________

__________________________________________________________________


______ (Default is 1024)





Enter the values shown in Example 3-61. Press Enter.

COMMAND ===>


____________________________________________
More: - +





Label(in quotes): 'ibmwebspheremqwin2'______________




3.6.2 Exporting the certificate
To export the certificate:
set).
called userid.SSLKEY.WIN2. Press PF8.

COMMAND ===>

More: +
'ibmwebspheremqwin2'______________ (in quotes)

sslkey.win2_________________________________



_ DER encoded X.509
_ DER encoded PKCS7

Note that you must enter/reenter a password (in quotation marks). You need
the password later when you import the certificate. Press Enter.

COMMAND ===>

More: -
_ DER encoded X.509
_ DER encoded PKCS7


userid.SSLKEY.WIN2.

3.6.3 Downloading the certificate to Windows
Use FTP to download the exported certificate to Windows (Example 3-64 on
page 103). We place the exported certificate in the queue manager's ssl
directory (<MQDir>QmgrsWIN2ssl).


C:MQV6QmgrsWIN1ssl>ftp winmvs60
2006-06-29.
User (winmvs60.hursley.ibm.com:(none)): emir
Password:
ftp> cd sslkey
ftp> bin
ftp> get win1 WIN2.p12
125 Sending data set EMIR.SSLKEY.WIN1
ftp: 2316 bytes received in 0.02Seconds 115.80Kbytes/sec.
ftp> bye

certificate.

3.6.4 Creating a key repository for WIN2
The following instructions show how to create a key repository for queue
manager WIN2.

This is already described in detail in Chapter 1, “Connecting two Windows queue
managers using SSL” on page 1, so this section omits the screen captures.

New and create a repository as follows:
– Location: <MQdir>QmgrsWIN2ssl
In this example: C:MQV6QmgrsWIN2ssl


Click OK.
3. Enter a password (and remember it, because you need it later) and select
Stash the password to a file? Click OK.
4. You see a message saying that the password was encrypted and saved.
Click OK.

You have created a key repository for queue manager WIN2.

After creating the key repository, the GUI shows the installed certification
authority certificates provided with iKeyman. Switch to viewing Personal
Certificates.

Do not close the iKeyman GUI.

3.6.5 Importing the certificate
To import the certificate:
1. The GUI should display the Signer Certificates. Change to the Personal
Certificates view.
The Import button to the right becomes active. Click Import.
2. This opens the Import Keys window. Use the following values:
– Key file type: PKCS12.
– File Name: WIN2.p12
– Location: The directory where you placed the exported certificate
In our case: <MQdir>QmgrsWIN2ssl
Click OK.
4. You have the option to change the labels. The queue manager (personal)
certificate already has the correct label (ibmwebspheremqwin2).
There is no need to change any of these labels, so click OK.
5. You see the queue manager's certificate (label ibmwebspheremqwin2) in the
Personal Certificates view. If you switch the view to Signer Certificates, you
see the certification authority certificate (label 0cn=swgs wmq,o=ibm).
Close the key repository by selecting Key Database File → Close.



1. On AIX 5L, set the cipherspec attribute to NULL_MD5 on the sender
(AIX1.WIN2) and receiver (WIN2.AIX1) channels.
2. On Windows, change the sender (WIN2.AIX1) and receiver (AIX1.WIN2)
channels to use the NULL_MD5 cipher specification.

This concludes the setup of SSL WebSphere MQ channels between AIX 5L and
Windows.

3.7 Windows to Windows
This section describes how to set up SSL channels between two Windows queue
managers.

Assumptions

Platform Windows Windows

Queue manager name WIN1 WIN2

Queue manager user ID emir emir

CHINIT user ID N/A N/A

Host name garzae garzae


queue managers.

Example MQSC to set up the channels
This section provides example MQSC to set up the channels.



INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WIN1.WIN2)
DEF CHL(WIN1.WIN2) CHLTYPE(SDR) REPLACE +
DEF CHL(WIN2.WIN1) CHLTYPE(RCVR) REPLACE


INITQ(SYSTEM.CHANNEL.INITQ) TRIGDATA(WIN2.WIN1)
DEF CHL(WIN2.WIN1) CHLTYPE(SDR) REPLACE +
DEF CHL(WIN1.WIN2) CHLTYPE(RCVR) REPLACE

Task summary
To set up SSL channels between two Windows queue managers, we perform the
tasks listed in Table 3-11.

Task Comments

1. Use RACF to create and export a certificate for Already done when setting up SSL between z/OS
queue manager WIN1. and Windows. See:
3.4.1, “Creating a certificate for WIN1” on
page 74
3.4.2, “Exporting the certificate from RACF” on
page 77

2. Download (FTP) the certificate to Windows. Already done when setting up SSL between z/OS
and Windows. See 3.4.3, “Downloading the
certificate to Windows” on page 78.


Task Comments

3. Create a key repository for queue manager Already done when setting up SSL between z/OS
WIN1 and import the certificate. and Windows. See:
3.4.4, “Creating a key repository for WIN1” on
page 79
3.4.5, “Importing the certificate” on page 79

4. Use RACF to create and export a certificate for Already done when setting up SSL between AIX 5L
queue manager WIN2. and Windows. See:
3.6.1, “Creating a certificate for the Windows
queue manager” on page 98
3.6.2, “Exporting the certificate” on page 101

5. Download (FTP) the certificate to Windows. Already done when setting up SSL between AIX 5L
and Windows. See 3.6.3, “Downloading the
certificate to Windows” on page 102.

6. Create a key repository for queue manager Already done when setting up SSL between AIX 5L
WIN2 and import the certificate. and Windows. See:
3.6.4, “Creating a key repository for WIN2” on
page 103
3.6.5, “Importing the certificate” on page 104

7. Alter the channels to use SSL. See the following section.

1. Set the cipherspec attribute to NULL_MD5 on the sender (WIN1.WIN2) and
receiver (WIN2.WIN1) channels on queue manager WIN1.
2. Change the sender (WIN2.WIN1) and receiver (WIN1.WIN2) channels to use
the NULL_MD5 cipher specification on queue manager WIN2.

This concludes the setup of SSL WebSphere MQ channels between two
Windows queue managers.


4

Chapter 4. Connecting the WebSphere
Message Broker V6 Toolkit
using SSL
This section presents a step-by-step guide to configuring WebSphere MQ
Version 6 and WebSphere Message Broker Toolkit Version 6 (the Toolkit) for
communication using WebSphere MQ SSL.


We assume that you already have a WebSphere Message Broker V6
Configuration Manager and that your Toolkit can communicate with the
Configuration Manager.

We follow this process to establish an SSL connection between the Toolkit and
the Configuration Manager:
1. Create a self-signed certificate for the Configuration Manager queue
manager.
2. Install the certification authority part of the queue manager's certificate in the
Toolkit's key repository.
3. Set up the server connection channel for one-way (server only) SSL
authentication.
4. Test the one-way SSL connection.
5. Create a self-signed certificate for the Toolkit client.
6. Install the certification authority part of the Toolkit's certificate in the queue
manager's key repository.
7. Set up the channel for two-way SSL authentication and test.

4.2 One-way (server) SSL authentication
The following instructions assume that you have:
A queue manager called MBV6, listening on port 2416. If your queue
manager has a different name, change the instructions accordingly.
Both the Configuration Manager and Toolkit run on Microsoft Windows. It
does not affect the process if they run on the same, or on separate, Windows
machines.

4.2.1 Creating a self-signed certificate for the queue manager
This task consists of the following steps, executed on the Configuration Manager
queue manager machine:
1. Create a key repository for the queue manager.
2. Create a self-signed certificate for the queue manager.
3. Extract the certification authority part of the certificate (to pass it to the
Toolkit). See 4.2.2, “Extracting the CA certificate” on page 114.


To create a key repository for the queue manager:
1. Open a command prompt and enter strmqikm. This starts the IBM Key
Management (iKeyman) GUI.
New.
– Location: C:MQV6QmgrsMBV6ssl
Click OK.

Figure 4-1 Create key repository

Chapter 4. Connecting the WebSphere Message Broker V6 Toolkit using SSL 111

4. At the prompt, enter a password (and remember it, because you need it later).
Select Stash the password to a file?, as shown in Figure 4-2. Click OK.

Figure 4-2 Key repository password


Figure 4-3 Password confirmation

Now that we have created a key repository, we can create a self-signed
certificate for the queue manager.


To create a self-signed certificate for the queue manager:
authority certificates provided with iKeyman. Switch to viewing Personal
Certificates, as shown in Figure 4-4.

Figure 4-4 Switch to Personal Certificates view

2. Click New Self-signed (bottom-right corner).
3. Fill in the certificate attributes, as shown in Figure 4-5 on page 114:
– Key Label (ibmwebspheremq followed by the queue manager name):
ibmwebspheremqmbv6
– Common Name: mbv6
(You can have a different naming convention for the common name, feel
– Organization: ibm (or your company's name).


Figure 4-5 Create self-signed certificate


Now the queue manager has a certificate. The queue manager presents this
certificate to the Toolkit when the Toolkit connects (as an WebSphere MQ client).
To validate the queue manager's certificate, the Toolkit needs the certification
authority (CA) certificate.

4.2.2 Extracting the CA certificate
– File Name: mbv6.arm


Click OK.
This creates a file called mbv6.arm in C:MQV6QmgrsMBV6ssl. If you open
the file with Notepad, you see something similar to Example 4-1.

Example 4-1 Sample mbv6.arm file
-----BEGIN CERTIFICATE-----
MIIByzCCATSgAwIBAgIEQ1kcEDANBgkqhkiG9w0BAQQFADAqMQswCQYDVQQGE…
ChMDaWJtMQ0wCwYDVQQDEwRtYnY2MB4XDTA1MTAyMDE2NDkyMFoXDTA2MTAyMT…
MAkGA1UEBhMCR0IxDDAKBgNVBAoTA2libTENMAsGA1UEAxMEbWJ2NjCBnzANBg…
AAOBjQAwgYkCgYEA0KzAGeurDcg6J7kTCZcm5M3xtkaiNZO6Kq2KLPqaQH8cKC…
E29GBAQ4rW9FmVu6iUJUZi4Z8p7oaXw5Y6Y6JGdJNBSonaEwdKE3hIHNnoygpJ…
k1kbgTUDmVSG8fKsutWftbqJmKDXPDaBjRkCAwEAATANBgkqhkiG9w0BAQQFAA…
oGkiATOI9TxkP31qZV6ZQmoIZ/UCm9FT7V8gMuux7CssV/CghlzsBmf6vVBjrn…
in5Y/Zq7ySx4Y1H2Fnv133cvyRXroujE9bInUSwzmicCg71tys4vEnNl1Dm/md…
KKVCZ4oHYg==
-----END CERTIFICATE-----

3. You must now transfer the CA certificate file to the Toolkit's key repository.
Before that, close the repository you are working with by selecting Key
Database File → Close (Figure 4-6).




4.2.3 Installing the CA part in the Toolkit's key repository
This task consists of the following steps, executed on the Toolkit machine (which
can be the same as the Configuration Manager's machine):
1. Copy or transfer the CA file (mbv6.arm) to the Toolkit.
2. Create a key repository for the Toolkit.
3. Add the CA file to the Toolkit's key repository.

Transferring the CA file to the Toolkit
Using Windows Explorer, or a command prompt, create a directory called
C:MQCLIENTToolkit (Example 4-2).

Example 4-2 Create the Toolkit directory
C:>md MQCLIENT
C:>cd MQCLIENT
C:MQCLIENT>md Toolkit

We place the CA exported file and the Toolkit's key repository in the
C:MQCLIENTToolkit directory.

Copy (or FTP ASCII) the exported CA certificate (mbv6.arm) to the
C:MQCLIENTToolkit directory.

Creating the Toolkit key repository
To create the Toolkit key repository:
1. Open a command prompt and enter strmqikm.
2. Create a key repository for the Toolkit. Select Key Database File → New.


– Key database type: JKS
The Key database type is important. Make sure that you create a JKS key
repository. This is because the Toolkit is a WebSphere MQ Java client,
which uses JKS repositories by default.
– File Name: key.jks
– Location: C:MQCLIENTToolkit
Click OK.

Figure 4-7 New JKS key repository

4. At the password prompt, enter changeit as the password for this repository,
twice.
Notes:
– changeit is the default password for a JKS repository. Do not do this in a
production system, but for this exercise, it is easier to just let the Toolkit
take the defaults.
– Remember the password. You need it to access the key repository.
– If you use a password other than changeit, you must pass it as a Java
virtual machine parameter when you start the Toolkit:
<Toolkit>wmbt.exe -vmargs -Djavax.net.ssl.keyStorePassword=mypwd
-vmargs must be the last parameter passed to wmbt.exe.
For example, this is the modified shortcut we used when setting a different
password (shown as two lines for readability; everything goes in one line
in the Target attribute of the shortcut):
C:MBT6.0wmbt.exe -data "C:ActiveSSLworkspace"
-vmargs -Djavax.net.ssl.keyStorePassword=passw0rd


Figure 4-8 shows a screen capture of the shortcut.

Figure 4-8 Shortcut to WebSphere Message Broker Toolkit

Adding the CA file to the Toolkit's key repository
To add the CA file to the Toolkit’s key repository:
1. The iKeyman GUI shows a list of CA certificates provided by default. Click
Add (to the right of the main pane).


2. In the next window (Figure 4-9), enter:
– Certificate file name: mbv6.arm
Click OK.

Figure 4-9 Add CA’s Certificate to key repository


3. When prompted to enter a label for the certificate, enter mbv6. (You can enter
any name you want; just make sure that it lets you identify the CA certificate
as belonging to the queue manager.) Click OK.
Figure 4-10.

Figure 4-10 Signer Certificates view


At this point, the queue manager has a certificate and the Toolkit has the
corresponding CA certificate. We are ready to set up server SSL (one-way)
authentication.

4.2.4 Testing the one-way SSL connection
This task consists of the following steps:
1. Verify that the Toolkit connects to the Configuration Manager without SSL.


2. On the Configuration Manager queue manager machine: Set up the server
connection channel used by the Configuration Manager.
3. On the Toolkit machine (if different): Set up the Configuration Manager
domain and connect.

Before making any changes, check that the connection works without SSL:
1. Start WebSphere MQ Explorer (Start → All Programs → IBM WebSphere
MQ → WebSphere MQ Explorer).
2. If not already started, start the queue manager MBV6.
3. If not already started, start the Configuration Manager.
4. Start the Toolkit.
5. Connect the Toolkit to the Configuration Manager. Verify that it connects
without problems.
6. Disconnect the Toolkit from the Configuration Manager. (Do not close the
WebSphere MQ Explorer and Toolkit windows.)


Now, we make the necessary changes to the queue manager. Switch to
WebSphere MQ Explorer and perform the following steps:
1. Open the queue manager's Channels view (Advanced → Channels).
Make sure that you are not filtering out SYSTEM.* objects. Click Show
System Objects (Figure 4-11) if you do not see this.

Figure 4-11 Queue Manager Channels

2. Right-click the SYSTEM.BKR.CONFIG channel. Select Properties.


3. Select the SSL tab.
Set the SSL CipherSpec attribute to NULL_MD5.
Set Authentication of parties initiating connections to Optional, as shown in
Figure 4-12.
(Optional makes it one-way: The queue manager presents a certificate, but
the Toolkit does not have to.)
Click OK.

Figure 4-12 SSL channel properties

The queue manager side is ready. We now need to set up the Toolkit domain for
SSL:
1. On the Toolkit machine (if different from the Configuration Manager's), switch
to the Toolkit window.
The Toolkit should be disconnected from the Configuration Manager. If it is
not, switch to the Broker Administration perspective and disconnect (or
close the Toolkit and start it again).


2. Open the Configuration Manager domain (file extension configmgr), as shown
in Figure 4-13.

Figure 4-13 Configuration Manager domain

3. This opens the domain editor. Change the SSL settings as follows:
– Cipher Suite: SSL_RSA_WITH_NULL_MD5
– Key Store: C:MQCLIENTToolkitkey.jks
– Trust Store: C:MQCLIENTToolkitkey.jks
4. Save your changes (press Ctrl+s).

We are now ready to test the SSL connection.

Switch to the Broker Administration perspective and connect. It should work
without having to stop anything. If it does not work, stop the Toolkit, stop the
queue manager, restart both, and try again.

After verifying that it works, disconnect the Toolkit from the Configuration
Manager. We are now ready to set up mutual authentication.

4.3 Two-way (mutual) SSL authentication
The process to implement mutual authentication consists of:
1. Create a certificate for the Toolkit.
2. Extract the certification authority (CA) part.


3. Transfer the CA part to the queue manager.
4. Install (import) the CA part in the queue manager's key repository.
5. Alter the channel to request client authentication.

4.3.1 Creating a certificate for the Toolkit
To create a certificate for the Toolkit:
1. On the Toolkit machine, open a command prompt and start the iKeyman GUI
(strmqikm).
2. Select Key Database File → Open.
3. Set the following values in the next window (Figure 4-14):
– Key database type: JKS
– File Name: key.jks
Click OK.

Figure 4-14 Open JKS key repository

4. At the password prompt, enter changeit.
5. Switch to the Personal Certificates view (menu near top-right corner).
Click New Self-Signed (bottom-right corner).
6. Enter the following values for the certificate as shown in Figure 4-15 on
page 126:
– Key Label: ibmwebspheremq<toolkit user ID>
In our case, the user ID is emir, so the label is ibmwebspheremqemir.
– Common Name: toolkit
(You can give it any name you want.)
– Organization: Your company or your department


Allow everything else to default.
Click OK.

Figure 4-15 Create New Self-Signed Certificate

The new certificate appears in the Personal Certificates list.

We now need to extract the certification authority part of the certificate and install
it on the queue manager repository.

4.3.2 Extracting the CA certificate
1. If not already selected, select (click) the certificate you just created.
Click Extract Certificate (bottom-right corner).
2. Extract the CA certificate using these values:
– Certificate File Name: toolkit.arm


Click OK.

This create a file called toolkit.arm in the C:MQCLIENTToolkit directory.

4.3.3 Transferring the CA file
To transfer the CA file:
1. Copy (or FTP in ASCII if on a different machine) toolkit.arm to the queue
manager directory C:MQV6QmgrsMBV6ssl.

4.3.4 Installing the CA certificate in the queue manager
To install the CA certificate in the queue manager:
1. On the Configuration Manager queue manager machine, start the iKeyman
GUI (strmqikm).
2. Open the queue manager’s key repository. Select Key Database File →
Open.
3. Set the following values:
4. Switch to the Signer Certificates repository.
5. Enter these values:
– Certificate File Name: toolkit.arm
Click OK. This imports the CA certificate from the toolkit.arm file.
6. When prompted for a label, enter toolkit (or any name that helps you
identify this as the Toolkit's CA certificate).
The newly imported CA certificate appears in the list of Signer Certificates.
At this point, the Toolkit has its personal certificate, and the queue manager
has the CA certificate that enables it to authenticate the Toolkit.


We are ready to test mutual (two-way) authentication.

4.3.5 Setting up and testing two-way SSL
Make sure that the Toolkit is disconnected from the Configuration Manager
(disconnect it if necessary). To set up and test two-way SSL:
1. Switch to WebSphere MQ Explorer Channels view.
2. Right-click SYSTEM.BKR.CONFIG. Select Properties.
3. Select the SSL tab.
– SSL CipherSpec is already set to NULL_MD5.
– Set Authentication of parties initiating connections to Required.
Click OK.
4. No changes are needed in the Toolkit. We are ready to start the connection.
Close the Toolkit and stop the queue manager, and then restart both.
5. Connect the Toolkit to the Configuration Manager.

This concludes the instructions for connecting the WebSphere Message Broker
V6 Toolkit using SSL.

4.4 What could go wrong?
While writing this, and sometimes not paying attention to our own instructions,
we encountered the problems described in this section.

4.4.1 Unable to access stashed password
This error might occur when you:
1. Create a CMS key repository (see 4.2.1, “Creating a self-signed certificate for
the queue manager” on page 110).
2. Give it a password.
3. Select Stash password to a file.
4. Attempt to start an SSL connection before closing the key repository (Key
Database File → Close).

To recover from this error:
1. Start the iKeyman GUI (strmqikm).
2. Open the CMS key database file (Key Database File → Open).


3. Stash the password (Key Database File → Stash Password).
4. Close the key database file (Key Database File → Close).

4.4.2 WebSphere MQ reason code 2397
If you create a JKS key repository (see 4.2.3, “Installing the CA part in the
Toolkit's key repository” on page 116) with a password other than changeit, you
must pass the password when starting the Toolkit. If you do not pass the
password, you get the following error (Figure 4-16).

Figure 4-16 MQRC 2397

The easiest solution is to change the password:
1. Start the iKeyman GUI (strmqikm).
2. Open the JKS key repository (Key Database File → Open).
3. Change the password (Key Database File → Change Password) to
changeit.
4. Close the key repository (Key Database File → Close).

If you must use a different password, pass it to the JVM when starting the Toolkit,
for example:
<Toolkit>wmbt.exe -vmargs -Djavax.net.ssl.keyStorePassword=passw0rd

Remember to place -vmargs as the last parameter. If you have, for example,
-data, place it before -vmargs.


4.4.3 WebSphere MQ reason code 2009
Under certain circumstances, if you do not close the Toolkit and stop the queue
manager (see 4.3.5, “Setting up and testing two-way SSL” on page 128), you
receive the message shown in Figure 4-17.

Figure 4-17 MQRC 2009

The solution is to stop the queue manager and the Toolkit, and then restart both.

4.4.4 Configuration Manager proxy retry attempts
When attempting to connect the Toolkit, you might get an error message
directing you to:
Select Window → Preferences → Broker Administration → Configuration
Manager Proxy and increase the Maximum Retry Attempts or the time
between attempts, or both.

We found that this is a transient error (probably due to a Java class loading
delay). Whenever we tried again, it worked.


Related publications

The publications listed in this section are considered particularly suitable for a
more detailed discussion of the topics covered in this Redpaper.

IBM Redbooks
For information about ordering these publications, see “How to get IBM
Redbooks” on page 132. Note that some of the documents referenced here may
be available in softcopy only.
WebSphere MQ Security in an Enterprise Environment, SG24-6814

Other publications
These publications are also relevant as further information sources:
WebSphere MQ Security, SC34-6588
WebSphere MQ Intercommunication, SC34-6587
WebSphere MQ Script (MQSC) Command Reference, SC34-6597
WebSphere MQ Messages, GC34-6601

Online resources
These Web sites are also relevant as further information sources:
The WebSphere MQ Information Center
http://publib.boulder.ibm.com/infocenter/wmqv6/v6r0/index.jsp
The WebSphere Message Broker Information Center
http://publib.boulder.ibm.com/infocenter/wmbhelp/v6r0m0/index.jsp
WebSphere MQ library
http://www.ibm.com/software/integration/wmq/library/
SupportPac MO04 (WebSphere MQ SSL Wizard)
http://www.ibm.com/support/docview.wss?rs=171&uid=swg24010367&loc=en
_US&cs=utf-8&lang=en


Technote “Unable to import a PKCS12 file that is created by IIS or other
non-IBM Web server keystores into a CMS or JKS database”
http://www.ibm.com/support/docview.wss?uid=swg21201170

How to get IBM Redbooks
You can search for, view, or download Redbooks, Redpapers, Hints and Tips,
draft publications and Additional materials, as well as order hardcopy Redbooks
or CD-ROMs, at this Web site:
ibm.com/redbooks

Help from IBM
IBM Support and downloads
ibm.com/support

IBM Global Services
ibm.com/services


Index
connecting certificate to key ring 66
A connecting Toolkit and Configuration Manager
AIX 5L instructions 94
process overview 110
AIX 5L prerequisites 91
creating
AIX 5L to Windows 96
certificate for the Toolkit 125
altering channel attributes 105
client connection channel 25
assumptions 96
key repository 58
creating certificate for Windows queue manager
queue manager 2
98
queue manager certificate 63
creating key repository for WIN2 103
root certificate 48
downloading certificate to Windows 102
self-signed certificate 31
example MQSC 96
self-signed certificate for client 39
exporting certificate 101
self-signed certificate for queue manager 110
importing the certificate 104
authentication
one-way (server) SSL 110 E
SSL client 38 enabling SSL on queue managers 57
SSL server 27 environment variable
two-way (mutual) SSL 124 MQCHLLIB 24, 26
MQCHLTAB 24, 26
MQSERVER 23
C MQSSLKEYR 36
CA (certification authority) 32
setup 26
CA certificate
extracting CA certificate 114, 126
extracting 114, 126
installing 127
certificate I
labels 47 IBM Key Management (iKeyman) GUI 6, 28, 111
X.509 distinguished name 47 installing CA certificate 127
certification authority (CA) 32
certificate 47
setup 47
J
job log 67
certification paths 47
channel initiator 63
channel setup K
QM1 18 key database type 117
QM2 19 key repository
command adding CA file to Toolkit 118
ftp 78 creating 58
gsk7cmd 92 installing CA part 33
MQSC 25 installing certificate 10
runmqsc 37, 43 JKS 117
set mqchl 25 key ring 58
strmqikm 6, 13, 28, 33, 39, 41, 79, 111, 116, verifying location 19
125, 127–129 key ring


assigning 60 R
connecting to CA certificate 59 RACDCERT 48
enabling SSL tasks 60 RACF main certificates panel 53
receiver channel 2
Redbooks Web site 132
M
MQ client setup Contact us xi
process overview 22
MQ Explorer 70 S
MQ ISPF panel 68 SDSF DA panel 61
MQ SSL configuration 46 Secure Sockets Layer (SSL) 1, 21
MQ SSL on z/OS, AIX 5L, and Windows 45 basics 5
sender channel 2
Signer Certificates 83
N
naming conventions 47 SSL (Secure Sockets Layer) 1
non-SSL client connectivity, verifying 23 SSL authentication and test
using channel tables 24 channel setup 18
using MQSERVER 23 SSL certificates 48
non-SSL WMQ client setup 22 SSL client 5
SSL client authentication 38
SSL connection
O process overview 6
one-way (server) SSL authentication 110 SSL handshake 5
one-way authentication 5 SSL server 5
one-way SSL 22 SSL server authentication 27
testing connection 120 starting channel 20

P T
personal certificate 5 testing MQ client with channel tables 27
process overview testing SSL client authentication 42
connecting Toolkit and Configuration Manager testing SSL server authentication 36
110 transferring CA file 127
transferring CA file to Toolkit 116
Q transferring channel table file 26
queue manager troubleshooting
basic configuration 2 Configuration Manager proxy retry attempts
channel setup 3 130
creating 2 MQ reason code 2009 130
key repository 6, 28 MQ reason code 2397 129
creating self-signed certificate 110 unable to access stashed password 128
exporting certificate from Internet Explorer 10 two-way (mutual) SSL authentication 124
importing certificate 13 two-way SSL 22
installing CA part in key repository 41 setup 128
installing certificate 10
name 2 W
obtaining certificate 8 WebSphere MQ installation directory 2
SSLQM 22 Windows to Windows 105
creating key repository 28 altering channel attributes 107


assumptions 105
example MQSC 105

Z
z/OS to AIX 5L 84
assumptions 84
creating key repository for AIX1 91
downloading certificate to AIX 5L 91
exporting certificate 89
importing certificate for AIX1 95
sample JCL for queue manager 84
sample MQSC commands for queue manager
AIX1 85
z/OS to Windows 71
assumptions 72
creating certificate for WIN1 74
creating key repository for WIN1 79
downloading certificate to Windows 78
example CSQUTIL JCL 72
export certificate from RACF 77
import certificate 79
z/OS to z/OS 55

Index 135

Back cover ®

WebSphere MQ V6,
WebSphere Message
Broker V6, and SSL Redpaper

WebSphere MQ SSL This IBM Redpaper provides step-by-step guides to
channels on implement IBM WebSphere MQ Secure Sockets Layer (SSL) INTERNATIONAL
Windows channels in a variety of configurations: TECHNICAL
SUPPORT
Microsoft Windows to and from Windows
WebSphere MQ V6 WebSphere MQ clients to WebSphere MQ queue
ORGANIZATION
and WebSphere managers (both on Windows)
Message Broker V6 Any-to-any WebSphere MQ channel connections on IBM
(the Toolkit) z/OS, AIX 5L, and Windows, using RACF as the BUILDING TECHNICAL
certification authority INFORMATION BASED ON
Connecting WebSphere Message Broker Toolkit PRACTICAL EXPERIENCE
WebSphere MQ and
Message Broker The aim is for you to learn the basics of WebSphere MQ SSL IBM Redbooks are developed by
using SSL using simple connectivity examples. the IBM International Technical
Support Organization. Experts
from IBM, Customers and
Partners from around the world
create timely technical
information based on realistic
scenarios. Specific
recommendations are provided
to help you implement IT
solutions more effectively in
your environment.

For more information:
ibm.com/redbooks

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