Paper 2011/335

New look at impossibility result on Dolev-Yao models with hashes

István Vajda

Abstract

Backes, Pfitzmann and Waidner showed in [7] that for protocols with hashes Dolev-Yao style models do not have cryptographically sound realization in the sense of BRSIM/UC in the standard model of cryptography. They proved that random oracle model provides a cryptographically sound realization. Canetti [9] introduced the notion of oracle hashing “towards realizing random oracles”. Based on these two approaches, we propose a random hash primitive, which already makes possible cryptographically sound realization in the sense of BRSIM/UC in the standard model of cryptography.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
cryptanalysishash functions
Contact author(s)
vajda @ hit bme hu
History
2011-06-22: received
Short URL
https://ia.cr/2011/335
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2011/335,
      author = {István Vajda},
      title = {New look at impossibility result on Dolev-Yao models with hashes},
      howpublished = {Cryptology {ePrint} Archive, Paper 2011/335},
      year = {2011},
      url = {https://eprint.iacr.org/2011/335}
}
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