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EPC: A Provably Secure Permutation Based Compression Function

Nasour BAGHERI, Praveen GAURAVARAM, Majid NADERI, Babak SADEGHIYAN

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Summary :

The security of permutation-based hash functions in the ideal permutation model has been studied when the input-length of compression function is larger than the input-length of the permutation function. In this paper, we consider permutation based compression functions that have input lengths shorter than that of the permutation. Under this assumption, we propose a permutation based compression function and prove its security with respect to collision and (second) preimage attacks in the ideal permutation model. The proposed compression function can be seen as a generalization of the compression function of MD6 hash function.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.10 pp.1833-1836
Publication Date
2010/10/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E93.A.1833
Type of Manuscript
LETTER
Category
Cryptography and Information Security

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