%0 Journal Article
%T Techniques for Efficiently Ensuring Data Storage Security in Cloud Computing
%A Vasu Raju
%A Raj Kumar
%A Anand Raj
%J International Journal of Computer Technology and Applications
%D 2011
%I Technopark Publications
%X The Cloud Computing is the next generation architecture of IT Enterprise. It moves the application software and databases to the large data centers, where the management of the data and services may not be fully trustworthy. Here, focus is on cloud data storage security, an important aspect of quality of service. To ensure the correctness of usersĄŻ data in the cloud, we propose an effective and flexible distributed scheme with two salient features. By utilizing the homomorphic token with distributed verification of erasure-coded data, the scheme achieves the integration of storage correctness and data error localization. The new scheme further supports secure and efficient dynamic operations on data blocks, including: data update, delete and append. Extensive security and performance analysis shows that the proposed scheme is efficient and resilient against Byzantine failure, malicious data modification attack, and server colluding attacks.
%K Homomorphic token
%K Dynamic operations
%K Byzantine failures
%K C S P
%U http://ijcta.com/documents/volumes/vol2issue5/ijcta2011020577.pdf