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Secure data access in cloud computing

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3 Author(s)
Sunil Sanka ; Computer Science and Information Systems Group, Birla Institute of Technology and Science-Pilani, Hyderabad Campus, Shameerpet, INDIA, 500078 ; Chittaranjan Hota ; Muttukrishnan Rajarajan

Data security and access control is one of the most challenging ongoing research work in cloud computing, because of users outsourcing their sensitive data to cloud providers. Existing solutions that use pure cryptographic techniques to mitigate these security and access control problems suffer from heavy computational overhead on the data owner as well as the cloud service provider for key distribution and management. This paper addresses this challenging open problem using capability based access control technique that ensures only valid users will access the outsourced data. This work also proposes a modified Diffie-Hellman key exchange protocol between cloud service provider and the user for secretly sharing a symmetric key for secure data access that alleviates the problem of key distribution and management at cloud service provider. The simulation run and analysis shows that the proposed approach is highly efficient and secure under existing security models.

Published in:

Internet Multimedia Services Architecture and Application(IMSAA), 2010 IEEE 4th International Conference on

Date of Conference:

15-17 Dec. 2010