An Attribute-based Controlled Collaborative Access Control Scheme for Public Cloud Storage

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An Attribute-based Controlled Collaborative Access Control Scheme for Public Cloud Storage To buy this project in ONLINE, Contact: Email: jpinfotechprojects@gmail.com, Website: https://www.jpinfotech.org

An Attribute-based Controlled Collaborative Access Control
Scheme for Public Cloud Storage
ABSTRACT:
In public cloud storage services, data are outsourced to semi-trusted cloud servers
which are outside of data owners’ trusted domain. To prevent untrustworthy
service providers from accessing data owners’ sensitive data, outsourced data are
often encrypted. In this scenario, how to conduct access control over these data
becomes a challenging issue. Attribute Based Encryption (ABE) has been proven
to be a powerful cryptographic tool to express access policies over attributes,
which can provide a fine-grained, flexible, and secure access control over
outsourced data. However, existing ABE-based access control schemes do not
support users to gain the access permission by collaboration. In this paper, we
explore a special attribute-based access control scenario where multiple users
having different attribute sets can collaborate to gain access permission if the data
owner allows their collaboration in the access policy. Meanwhile, the collaboration
that is not designated in the access policy should be regarded as a collusion and the
access request will be denied. We propose an attribute-based controlled
collaborative access control scheme through designating translation nodes in the
access structure. Security analysis shows that our proposed scheme can guarantee
data confidentiality and has many other critical security properties. Extensive
performance analysis shows that our proposed scheme is efficient in terms of
storage and computation overhead.
SYSTEM REQUIREMENTS:

HARDWARE REQUIREMENTS:
 System : Pentium Dual Core.
 Hard Disk : 120 GB.
 Monitor : 15’’ LED
 Input Devices : Keyboard, Mouse
 Ram : 1 GB
SOFTWARE REQUIREMENTS:
 Operating system : Windows 7.
 Coding Language : JAVA.
 Tool : Netbeans 7.2.1
 Database : MYSQL
REFERENCE:
Yingjie Xue, Kaiping Xue, Senior Member, IEEE, Na Gai, Jianan Hong, David
S.L. Wei, Senior Member, IEEE, and Peilin Hong, “An Attribute-based Controlled
Collaborative Access Control Scheme for Public Cloud Storage”, IEEE
Transactions on Information Forensics and Security, Volume: 14 , Issue: 11 , Nov.
2019.

Attribute-based encryption (ABE) is a public-key based one-to-many encryption that allows users to encrypt and decrypt data based on user attributes. A promising application of ABE is flexible access control of encrypted data stored in the cloud, using access polices and ascribed attributes associated with private keys and ciphertexts.One of the main efficiency drawbacks of the existing ABE schemes is that decryption involves expensive pairing operations and the number of such operations grows with the complexity of the access policy. Recently, Green et al. proposed an ABE system with outsourced decryption that largely eliminates the decryption overhead for users. In such a system, a user provides an untrusted server, say a cloud service provider, with a transformation key that allows the cloud to translate any ABE cipher text satisfied by that user’s attributes or access policy into a simple cipher text, and it only incurs a small computational overhead for the user to recover the plaintext from the transformed cipher text. Security of an ABE system with outsourced decryption ensures that an adversary (including a malicious cloud) will not be able to learn anything about the encrypted message; however, it does not guarantee the correctness of the transformation done by the cloud. In this paper, we consider a new requirement of ABE with outsourced decryption: verifiability. Informally, verifiability guarantees that a user can efficiently check if the transformation is done correctly. We give the formal model of ABE with verifiable outsourced decryption and propose a concrete scheme. We prove that our new scheme is both secure and verifiable, without relying on random oracles. Finally, we show an implementation of our scheme and result of performance measurements, which indicates a significant reduction on computing resources imposed on users. http://kaashivinfotech.com/ http://inplanttrainingchennai.com/ http://inplanttraining-in-chennai.com/ http://internshipinchennai.in/ http://inplant-training.org/ http://kernelmind.com/ http://inplanttraining-in-chennai.com/ http://inplanttrainingchennai.com/

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