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Homepage>IEC Standards>ISO/IEC 10118-4:1998 - Information technology - Security techniques - Hash-functions - Part 4: Hash-functions using modular arithmetic
download between 0-24 hoursReleased: 1998-12-20
ISO/IEC 10118-4:1998 - Information technology - Security techniques - Hash-functions - Part 4: Hash-functions using modular arithmetic

ISO/IEC 10118-4:1998

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

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Standard number:ISO/IEC 10118-4:1998
Released:1998-12-20
Edition:1
ICS:35.030
Pages (English):23
DESCRIPTION

ISO/IEC 10118-4:1998

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.