Welcome to the resource topic for 2001/020
Title:
Some observations on the theory of cryptographic hash functions
Authors: D. R. Stinson
Abstract:In this paper, we study several issues related to the notion of
secure'' hash functions. Several necessary conditions are considered, as well as a popular sufficient condition (the so-called random oracle model). We study the security of various problems that are motivated by the notion of a secure hash function. These problems are analyzed in the random oracle model, and we prove that the obvious trivial algorithms are optimal. As well, we look closely at reductions between various problems. In particular, we consider the important question does preimage resistance imply
collision resistance?‘’. Finally, we study the relationship
of the security of
hash functions built using the Merkle-Damgard construction
to the security of the underlying compression function.
ePrint: https://eprint.iacr.org/2001/020
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