Cloud Data Auditing News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Public cloud data auditing allows any third party to check the integrity of data stored on untrusted cloud servers without retrieving the data. The challenge is how to audit the proof of storage with efficient communications. In ACM CCS 2007, Ateniese et al. described the first practical public cloud data auditing scheme based on RSA, in which the proof of storage consists of one RSA element and one hash value and the storage cost for generating the proof can be as short as 1% of the stored file. Soon after, in Asiacrypt 2008, Shacham and Waters gave another public cloud data auditing scheme based on bilinear pairing, in which the generated proof of storage can be as short as 320 bits for 80-bit security (71% less compared to Ateniese et al.’s scheme). However, Shacham and Waters’ scheme must trade off the storage cost, where the storage overhead for generating the proof of storage must be 100% of the stored file. Surprisingly, until today, the tradeoff between the proof size (name ....

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