ABSTRACT:
Due to the complexity and volume,
outsourcing ciphertexts to a cloud is deemed to be
one of the most effective approaches for big data storage and access.
Nevertheless, verifying the access legitimacy of a user and securely updating a
ciphertext in the cloud based on a new access policy
designated by the data owner are two critical challenges to make cloud-based
big data storage practical and effective. Traditional approaches either
completely ignore the issue of access policy update or delegate the update to a
third party authority; but in practice, access policy update is important for
enhancing security and dealing with the dynamism caused by user join and leave
activities. In this paper, we propose a secure and verifiable access control
scheme based on the NTRU cryptosystem for big data storage in clouds. We first
propose a new NTRU decryption algorithm to overcome the decryption failures of
the original NTRU, and then detail our scheme and analyze its correctness,
security strengths, and computational efficiency. Our scheme allows the cloud
server to efficiently update the ciphertext when a
new access policy is specified by the data owner, who is also able to validate the
update to counter against cheating behaviors of the
cloud. It also enables (i) the data owner and
eligible users to effectively verify the legitimacy of a user for accessing the
data, and (ii) a user to validate the information provided by other users for
correct plaintext recovery. Rigorous analysis indicates that our scheme can
prevent eligible users from cheating and resist various attacks such as the
collusion attack.
SYSTEM REQUIREMENTS:
HARDWARE REQUIREMENTS:
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System : Pentium Dual Core.
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Hard Disk : 120 GB.
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Monitor : 15’’ LED
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Input Devices : Keyboard, Mouse
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Ram : 1 GB
SOFTWARE REQUIREMENTS:
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Operating system : Windows 7.
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Coding Language : JAVA/J2EE
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Tool : Netbeans 7.2.1
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Database : MYSQL
REFERENCE:
Chunqiang Hu, Member, IEEE, Wei Li, Member, IEEE, Xiuzhen Cheng, Fellow, IEEE Jiguo
Yu, Member, IEEE, Shengling Wang, Member, IEEE, and Rongfang Bie, Member, IEEE, “A
Secure and Verifiable Access Control Scheme for Big Data Storage in Clouds”,
IEEE Transactions on Big Data, 2018.