Efficient cryptographic hash functions and methods for...

Details Efficient cryptographic hash functions and methods for... Efficient cryptographic hash functions and methods for...

H - Electricity

04

L

H04L 9/28 (2006.01) G06F 7/58 (2006.01) H03M 7/00 (2006.01) H04L 9/32 (2006.01)

Patent

CA 2237941

The cryptographic hash function circuit (300) has tables (301, 302, ... 303) and has inputs of ci(j) on the input buses (311, 312,... 313) to the tables (301, 302, ... 303) making outputs on the output buses (321, 322, ... 323) that feed into an exclusive-OR gate (331). The output of the exclusive-OR gate is kj on bus (351). The key K is the concatenation of the eight kj's.

Cette présente invention concerne un circuit (300) à fonction de hachage cryptographique. Ce circuit, qui comporte des tableaux (301, 302, ... 303) et fait des entrées c¿i?(j) sur les bus d'entrée (311, 312, ... 313) à destination des tableaux (301, 302, ... 303). Ces tableaux font des sorties sur les bus d'entrée (321, 322, ... 323) aboutissant dans des portes OU exclusif (331). La porte OU exclusif donne en sortie k¿j? sur le bus (351). La clé K est la concaténation de huit k¿j?.

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