Improved Shamir's Secret Based Key Aggregate Mechanism for Secure Data Sharing in Multi Cloud Storage
Keywords:
Cloud Storage, Key Aggregate Encryption, Multi-cloud infrastructure, Data Sharing.Abstract
The Data sharing is an important functionality in cloud storage. We describe new public key crypto systems which produce constant-size cipher texts such that efficient delegation of decryption rights for any set of cipher texts are possible. The novelty is that one can aggregate any set of secret keys and make them as compact as a single key, but encompassing the power of all the keys being aggregated. Ensuring the security of cloud computing is second major factor and dealing with because of service availability failure the single cloud providers demonstrated less famous failure and possibility malicious insiders in the single cloud. A movement towards Multi-Clouds, In other words Inter-Clouds or Cloud-Of-Clouds as emerged recently. This works aim to reduce security risk and better flexibility and efficiency to the user. Multi-cloud environment has ability to reduce the security risks as well as it can ensure the security and reliability.
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