Developing a library for proofs of data possession in Charm
Riebel-Charity, Krisztina C.
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Provable Data Possession (PDP) is a cryptographic tool for auditing big data on a storage server or in the cloud. The goal of PDP is to efficiently verify that the server is storing the data. PDP provides probabilistic guarantees that the server is storing the information, and it will be available when needed, without accessing the entire file. In this work, we have developed a PDP module for the Charm cryptographic framework. We wrote an application programmer interface (API) for generic PDP schemes. We implemented the simple MAC-PDP scheme with efficient subroutines for sub-linear sampling. We hope that this work will encourage further study in the rapid prototyping and evaluation of new PDP schemes in the Charm framework.
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