A Data Sharing Protocol to Minimize Security and Privacy Risks in Cloud Storage

International Journal of Trend in Scientific Research and Development (IJTSRD)
Volume 3 Issue 6, October 2019 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470
@ IJTSRD | Unique Paper ID – IJTSRD29345 | Volume – 3 | Issue – 6 | September - October 2019 Page 1142
A Data Sharing Protocol to Minimize Security and
Privacy Risks in Cloud Storage
S. Nandhini Devi1, Mr. S. Rajarajan2
1M.E (CSE) Student, 2M.E., (Ph.D), Assistant Professor,
1,2Department of CSE, Kings College of Engineering, Thanjavur, Tamil Nadu, India
ABSTRACT
Data contribution in the cloud is a procedure so as to allow users to
expediently right of entry information in excess of the cloud. The information
holder outsources their data in the cloud due to cost lessening and the huge
amenities provided by cloud services. Information holder is not able to
manage over their information, since cloud examination contributor isa third
party contributor. The main disaster with data partaking in the cloud is the
seclusion and safety measures issues. Different techniques are obtainable to
sustain user seclusion and protected data sharing. This paper focal point on
different schemes to contract by means of protected data partaking such as
information contribution with forward security, protected information
partaking for energetic groups, quality based information partaking,
encrypted data sharing and mutual influence Based Privacy-Preserving
verification set of rules for right to use manage of outsourced information.
KEYWORDS: conveniently access data, secure data sharing, forward security,
Privacy-Preserving Authentication Protocol
How to cite this paper: S. Nandhini Devi |
Mr. S. Rajarajan "A Data Sharing Protocol
to Minimize Security and Privacy Risks in
Cloud Storage" Published in International
Journal of Trend in
Scientific Research
and Development
(ijtsrd), ISSN: 2456-
6470, Volume-3 |
Issue-6, October
2019, pp.1142-
1145, URL:
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345.pdf
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Research and Development Journal. This
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INTRODUCTION
Emerging technologies about big data such as Cloud
Computing , Business Intelligence , Data Mining, Industrial
Information Integration Engineering(IIIE) and Internet-of-
Things have opened a new era for future Enterprise
Systems(ES) . Cloud computing is a new computing model,in
which all resource onInternetformacloudresourcepooland
can be allocated to different applications and services
dynamically. Compared with traditional distribute system, a
considerable amount of investment saved and it brings
exceptional elasticity, scalability and efficiency for task
execution. By utilizing Cloud Computing services, the
numerous enterprise investments in building and
maintaining a supercomputing or grid computing
environment for smart applications can be effectively
reduced. Despite these advantages, security requirements
dramatically rise when storing personal identifiableoncloud
environment. This raise regulatory compliance issues since
migrate the sensitive data from federatedomaintodistribute
domain. To take the benefit enabled by big datatechnologies,
security and privacy issues must be addressed firstly.
Building security mechanism for cloud storage is not an easy
task. Because shared data on the cloud is outside the control
domain of legitimate participants, making the shared data
usable upon the demand of the legitimate users should be
solved. Additionally, increasing number of parties, devices
and applications involved in the cloud leads to the explosive
growth of numbers of access points, which makes it more
difficult to take proper access control. Lastly, shared data on
the cloud are vulnerable to lost or incorrectlymodifiedbythe
cloud provider or network attackers. Protecting shared data
from unauthorized deletion, modificationandfabricationisa
difficult task.
LITERATURE SURVEY
1. "Efficient and secure identity-based encryption
scheme with equality test in cloud computing,"
Xinyi Huang et.al [1] (2015) introduced a Identity-based
(ID-based) ring signature, which eliminates the processof
certificate verification. By providing forward secure ID-
based ring signature method security level of ring
signature is increased. In this method, if the secret key of
any user has been compromised, previous generated
signatures of all is included and the user still remains
valid. If a secret key of single user has been compromised
it is impossible to ask all data owners to reauthenticate
their data. It is especially important to any large scale data
sharing system and it is very efficient anddoesnotrequire
any pairing operations. The user secret key is one integer,
while the key update process requires an exponentiation.
This scheme is useful; especially to those require
authentication and user privacy.
IJTSRD29345

International Journal of Trend in Scientific Research and Development (IJTSRD) @ www.ijtsrd.com eISSN: 2456-6470
2. "A scalable attributed-set-based access control
with both sharing and full-fledged delegation of
access privileges in cloud computing,"
Huang Qinlong et.al [2] (2015) suggested an attribute-
based secure data sharing scheme with Efficient
revocation (EABDS) in cloud computing. To guaranteethe
data confidentiality and to achieve fine-grained access
control this proposed scheme encrypts data with Data
encryption key(DEK)using symmetricencryption method
and then encrypts DEK based on Ciphertext policy
attribute-based encryption (CP-ABE). The homomorphic
encryption technique is used to solve key escrowproblem
in order to generate attribute secret keys of users by
attribute authority in support with key server. This
homomorphic encryption techniqueis usedto prevent the
attribute authority from accessing the data by generating
the attribute secret keys alone. EABDS scheme achieves
immediate attributerevocationwhich guarantees forward
and backward security, and less computation cost on
users. Advantages of this method are more secure and
efficient.
3. "Securing outsourced data in the multi-authority
cloud with fine-grained access control and
efficient attribute revocation,"
Hong Liu et.al [3] (2015) proposed a shared authority
based privacy preserving authentication protocol (SAPA)
to address the privacy issues for a cloud storage. Their
protocol is attractive for multi-user collaborative cloud
applications. The existing security solutions mainly focus
on authentication. In SAPA, the shared access authority is
achieved by anonymous access request matching
mechanism, provides Ciphertext-policy attribute based
access control to enable users to reliably access its own
data fields and proxy re-encryption is applied to provide
data sharing among multiple users. Universal Compos
ability (UC) model is established to prove the SAPA has
design correctness. When a user challenges the cloud
server to request other users for data sharing, this access
request itself may reveal user’s privacy. This scheme
addresses user’s sensitive access related privacy during
data sharing in cloud environment and achieves data
access control, access authority sharing and privacy
preservation. Through the SAPA protocol, authentication
and authorization is preserved without compromising
user’s private information.
4. “Privacy-preserving public auditing for secure
cloud storage,”
Xin dong et.al [4] (2014), proposed an effective, scalable
and flexible privacy-preserving data policy with semantic
security. They used two techniques Ciphertext policy
attribute-based encryption (CP-ABE) and Identity based
Encryption (IBE) that provided a dependable and secure
cloud data sharing service thatallowsdynamic data access
to users. Their scheme ensures robust data sharing
preserves privacy of cloud users and supports efficient
and secure dynamicoperationswhich includefilecreation,
user revocation and modification of user attributes. This
scheme also enforces fine-grained access control, full
collusionresistance and backwardsecrecy.Although cloud
computing is economically attractive to customers and
enterprises, it does not guarantee users privacy and data
security. The proposed schemeprovidessemanticsecurity
for data sharing in cloud computing through the generic
bilinear group model and also imposes backward secrecy
and access privilege confidentiality. The performance
analysis of this scheme incurs a small overhead compared
to existing schemes.
5. "Secure Multi-Authority Data Access Control
Scheme in Cloud Storage System Based on
Attribute-based Sign encryption"
Qiang Tang et.al [5] (2014) suggested a searchable
encryption namely multi-party searchable encryption
(MPSE). It enables usersto selectively permiteach other to
search in their encrypted data. For worst-case and
average-case collusion due to the user status dynamics a
security model is considered. He proposed a new scheme
with provable security. A security model for MPSE
provides stronger security guarantee than that from. In
the formulation of MPSE, authorization is approved on
index level, for each of herindexes exampleAlicecan make
a decision whether Bob can search or not i.e. if all
keywords try by authorized Bob then Alice supports
authorize Bob to look for a subset of keywords in her
indexes as well as the cloud server colluded with Bob can
recover the keyword in all Alice’s search queries. In this
MPSE formulation, expected to be that Alice can find out a
problem of single trapdoor search forallindexesthathave
been authorized by her. Disadvantages of thisformulation
are If Alice have many key pairs in the index and use them
with various peers then it leaks some unnecessary
information. In contrast, inverted index structuremay not
face this kinds of problem.
IMPLEMENTATION
Existing System
Cloud systems can be used to enable data sharing
capabilities and this can provide several benefits to the
user and organization when thedatasharedincloud.Since
many users from various organisations contribute their
data to the Cloud, the time and cost will be less compared
to manually exchange of data. Google Docs provides data
sharing capabilities as groups of students or teams
working on a project can share documents and can team
up with each other successfully. This allows higher
productivity compared to previous methods of frequently
sending updated versions of a document to members of
the group via emailattachments.People areexpectingdata
sharing capability on their computers, phones and laptop
etc. People love to share their information with others
such as family, colleagues, friends or the world. Students
also get benefit when working on group projects, as they
are able to team up with members and get work done
efficiently.
Proposed System
In this proposed system common temp key is shared to
reduce the information leakage from cloud storage in big
data. To minimize security and privacy risks some limits
were provided which are time limit, size limit, and credit
point limit. Information was encrypted to provide more
security (AES, DES algorithm). The temp key can be used
by person who requests to retrieve informationforonce.If
other than the request person tries to use temp key then
that key is removed and alert notification will be send to
data owner. Temp key provider sends the key to request
person by mail using SMTP protocol. (Gmail -high secure)
The main advantage of proposed system is to separate

storage space into module and each module is secured
with temp password. This makes more efficient
constructions. This key can be used onlyonce. We propose
a new secret sharing scheme that is computationally
secure and can reduce the number of shares Temp key
helps information retrieval more secured with low cost.
Only request person can use temp key. Encryption
standards make information difficult to theft. Limitations
of temp key provide high security.
CONCLUSION
Common temp key is shared to reduce the information
leakage from cloud storage in big data. To minimize
security and privacy risks some limits were provided
which are time limit, size limit, and credit point limit.
Information was encrypted toprovide moresecurity(AES,
DES algorithm). The temp key can be used by person who
requests to retrieve information for once. If otherthan the
request person tries to use temp key then that key is
removed and alert notification will be send to data owner.
Temp key provider sends the key to request person by
mail using SMTP protocol. (Gmail -high secure) The main
advantage of proposed system isto separatestoragespace
into module and each module is secured with temp
password. This makes more efficient constructions. This
key can be used only once. We propose a new secret
sharing scheme that is computationally secure and can
reduce the number of shares Temp key helps information
retrieval more secured with low cost. Only requestperson
can use temp key. Encryptionstandards makeinformation
difficult to theft. Limitations of temp key provides high
security
FUTURE ENHANCEMENT
The new applications are generating vast amount of data
in structured and unstructured form. Big data is able to
process and store that data andprobably inmore amounts
in near future. Hopefully, Hadoop will get better. New
technologies and tools that have ability to record,monitor
measure and combine all kinds of data around us, are
going to be introduced soon. We will need new
technologies and tools for anonymzing data, analysis,
tracking and auditing information, sharing and managing,
our own personal data in future. So many aspects of life
health, education, telecommunication, marketing, sports
and business etc that manages big data world need to be
polished in future.
References
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[3] Sen, J. (2010a). An Agent-Based Intrusion Detection
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