Davies–Meyer

Authors: Bart Preneel

Publish Date: 2011

Volume: , Issue: , Pages: 312-313

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Abstract

The Davies–Meyer hash function is a construction for an iterated  hash function based on a  block cipher where the length in bits of the hash result is equal to the block length of the block cipher The compression function encrypts the chaining value with as key a message block and xors the chaining value to the resulting ciphertextThis construction attributed to Davies by Winternitz 8  9 and to Meyer by Davies 2 Davies has confirmed in a personal communication to the author that he did not propose the hash function although he may have proposed the compression functionThe Davies–Meyer hash function is a cryptographic  hash function that may have the following properties  preimage resistance  second preimage resistance and  collision resistance these properties may or may not be achieved depending on the properties of the underlying block cipher

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