Reputable Re-Encryption in Unrepeatable Clouds

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Provided by: Creative Commons
Topic: Cloud
Format: PDF
Cloud computing users has to get key information to re-encrypt the data which has been in encrypted to get key information in order to decrease the number of keys used they are proposing broadcast encryption broadcast encryption is the cryptographic problem of delivering encrypted content over a broadcast channel in such a way that only qualified users can decrypt the content. The challenge arises from the requirement that the set of qualified users can change in each broadcast emission, and therefore revocation of individual users or user groups should be possible using broadcast transmissions, only, and without affecting any remaining users.
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