Paper 2008/114

Scalable and Efficient Provable Data Possession

Giuseppe Ateniese, Roberto Di Pietro, Luigi V. Mancini, and Gene Tsudik

Abstract

Storage outsourcing is a rising trend which prompts a number of interesting security issues, many of which have been extensively investigated in the past. However, Provable Data Possession (PDP) is a topic that has only recently appeared in the research literature. The main issue is how to frequently, efficiently and securely verify that a storage server is faithfully storing its client’s (potentially very large) outsourced data. The storage server is assumed to be untrusted in terms of both security and reliability. (In other words, it might maliciously or accidentally erase hosted data; it might also relegate it to slow or off-line storage.) The problem is exacerbated by the client being a small computing device with limited resources. Prior work has addressed this problem using either public key cryptography or requiring the client to outsource its data in encrypted form. In this paper, we construct a highly efficient and provably secure PDP technique based entirely on symmetric key cryptography, while not requiring any bulk encryption. Also, in contrast with its predecessors, our PDP technique allows outsourcing of dynamic data, i.e, it efficiently supports operations, such as block modification, deletion and append.

Metadata
Available format(s)
PDF
Publication info
Published elsewhere. Unknown where it was published
Keywords
cryptographic protocols
Contact author(s)
dipietro @ mat uniroma3 it
History
2008-04-08: last of 2 revisions
2008-03-17: received
See all versions
Short URL
https://ia.cr/2008/114
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2008/114,
      author = {Giuseppe Ateniese and Roberto Di Pietro and Luigi V.  Mancini and Gene Tsudik},
      title = {Scalable and Efficient Provable Data Possession},
      howpublished = {Cryptology ePrint Archive, Paper 2008/114},
      year = {2008},
      note = {\url{https://eprint.iacr.org/2008/114}},
      url = {https://eprint.iacr.org/2008/114}
}
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