TRUST ENHANCED CRYPTOGRAPHIC ROLE BASED ACCESS CONTROL MECHANISM FOR CLOUD USING ESMTP

Document Type : Primary Research paper

Authors

Assistant Professor’s, Department of CSE, Nehru Institute of Technology, Coimbatore, Tamil Nadu, India

Abstract

Cloud computing has been envisioned as the next generation information technology
(IT) architecture for enterprises, due to its long list of unprecedented advantages in
the IT history: on-demand self-service, ubiquitous network access, location independent resource
pooling, rapid resource elasticity, usage-based pricing and transference of risk. In this project, we
propose a secure data sharing scheme, which can achieve secure key distribution and data sharing for
dynamic group. The main contributions of our scheme include: We provide a secure way for key
distribution without any secure communication channels. The users can securely obtain their private
keys from group manager without any Certificate Authorities due to the verification for the public
key of the user. Our scheme can achieve fine-grained access control, with the help of the group user
list, any user in the group can use the source in the cloud and revoked users cannot access the cloud
again after they are revoked. We propose a secure data
sharing scheme which can be protected from collusion attack. The revoked users can not be able to
get the original data files once they are revoked even if they conspire with the un-trusted cloud. Our
scheme can achieve secure user revocation with the help of polynomial function. Our
scheme is able to support dynamic groups efficiently, when a new user joins in the group or a
user is revoked from the group, the private keys of the other users do not need to be recomputed
and updated.

Keywords

Int. J. of Aquatic Science
Volume 11, Issue 1
International Virtual Conference, Recent Materials for, Engineering Applications and Sustainable Environment, December 2020.
May 2020
Pages 305-311

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