1. Secure Electronic Transaction (SET)
D.Satyanarayana Murthy
Lecturer in Computer Science
Nagarjuna Degree College For Women,
Kadapa
2. Secure Electronic Transaction (SET)
• Developed by Visa and MasterCard
• Designed to protect credit and debit
card transactions
• Confidentiality: all messages encrypted
• Trust: all parties must have digital
certificates
• Privacy: information made available
only when and where necessary
4. SET Business Requirements
(1)
• Provide confidentiality of payment and
ordering information
• Ensure the integrity of all transmitted data
• Provide authentication that a cardholder is
a legitimate user of a credit or debit card
account
• Provide authentication that a merchant
can accept credit or debit card
transactions through its relationship with a
financial institution
5. • The customer opens an account with a
card issuer.
–MasterCard, Visa, etc.
• The customer receives a digital certificate
signed by a bank.
• A merchant who accepts a certain brand of
card must possess two digital certificates.
–One for signing & one for key exchange
• The customer places an order for a product
or service with a merchant.
• The merchant sends a copy of its
certificate for verification.
SET Transactions
(1)
6. • The customer sends order and payment
information to the merchant.
• The merchant requests payment
authorization from the payment gateway
prior to shipment.
• The merchant confirms order to the
customer.
• The merchant provides the goods or
service to the customer.
• The merchant requests payment from
the payment gateway.
SET Transactions
(2)
