Efficient User Revocation in Dynamic Cloud Using Proxy Server.
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Abstract
Cloud provides services like data storage and data sharing in a group. Users can remotely store their data on cloud and enjoy the on-demand high quality applications and services from a shared pool of configurable computing resources, without the burden of local data storage and maintenance. But the management of the data and services may not be fully trustworthy on cloud, as users no longer have physical possession of the outsourced personal data so data integrity protection becomes a difficult task. Maintaining the integrity of shared data services where data is shared among number of cloud user, is also a challenging task. This paper gives Efficient User Revocation in Dynamic Cloud Using Proxy Server and for that it uses Homomorphic linear authenticator with random masking technique. Homomorphic authenticable proxy resignature scheme with Panda public auditing mechanism checks shared data integrity along with efficient user revocation. Furthermore, these mechanisms are able to support batch auditing by verifying multiple auditing tasks simultaneously.
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