Attribute Based Proxy Re-encryption for Data Confidentiality in Cloud Computing Environments

Author

Do, Jeong-Min ; Song, You-Jin ; Park, Namje

Author_Institution

Dept. of Inf. Manage., Dongguk Univ., Gyeongju, South Korea

fYear

2011

fDate

23-25 May 2011

Firstpage

248

Lastpage

251

Abstract

To ensure data confidentiality and fine-grained access control in cloud computing environments, a recent study proposed system model using Key Policy-Attribute Based Encryption(KP-ABE) and Proxy Re-Encryption(PRE). But, existing work has effected the violation of data confidentiality through collusion attack of revoked user in system and cloud server. To resolve this problem, we propose system model that store and divide data file into header, body. In addition, our scheme selectively delegate decryption right using Type-based Proxy re-encryption.

Keywords

authorisation; cloud computing; cryptography; attribute based proxy reencryption; cloud computing environments; cloud server; data confidentiality; fine-grained access control; key policy-attribute based encryption; system model; type-based proxy reencryption; Access control; Cloud computing; Computational modeling; Data models; Encryption; Servers; Collusion attack; Data confidentiality; Fine-grained Access Control; Key Policy-Attribute Based Encryption; Proxy Re-Encryption; User revocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers, Networks, Systems and Industrial Engineering (CNSI), 2011 First ACIS/JNU International Conference on

Conference_Location

Jeju Island

Print_ISBN

978-1-4577-0180-1

Type

conf

DOI

10.1109/CNSI.2011.34

Filename

5954316