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ISO/IEC 10118-4:1998Published

Information technology — Security techniques — Hash-functions — Part 4: Hash-functions using modular arithmetic

Technologies de l'information — Techniques de sécurité — Fonctions de brouillage — Partie 4: Fonctions de hachage utilisant l'arithmétique modulaire

Abstract / scope

This part of ISO/IEC 10118 specifies two hash-functions which make use of modular arithmetic. These hash-functions,

which are believed to be collision-resistant, compress messages of arbitrary but limited length to a hash-code

whose length is determined by the length of the prime number used in the reduction-function defined in 7.3. Thus,

the hash-code is easily scaled to the input length of any mechanism (e.g., signature algorithm, identification

scheme).

The hash-functions specified in this part of ISO/IEC 10118, known as MASH-1 and MASH-2 (Modular Arithmetic

Secure Hash) are particularly suitable for environments in which implementations of modular arithmetic of sufficient

length are already available. The two hash-functions differ only in the exponent used in the round-function.

Life cycle

Amendments & corrigenda

ISO/IEC 10118-4:1998/Cor 1:2014PublishedInformation technology — Security techniques — Hash-functions — Part 4: Hash-functions using modular arithmetic — Technical Corrigendum 1International Standard · Published 21 Jul 2014 · ISO/IEC JTC 1/SC 27ISO/IEC 10118-4:1998/Amd 1:2014PublishedInformation technology — Security techniques — Hash-functions — Part 4: Hash-functions using modular arithmetic — Amendment 1: Object identifiersInternational Standard · Published 17 Nov 2014 · ISO/IEC JTC 1/SC 27

Replaced by

ISO/IEC WD 10118-4Deleted (project abandoned)Information technology — Security techniques — Hash-functions — Part 4: Hash-functions using modular arithmeticInternational Standard · ISO/IEC JTC 1/SC 27