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1. (WO1997018652) EFFICIENT CRYPTOGRAPHIC HASH FUNCTIONS AND METHODS FOR AMPLIFYING THE SECURITY OF HASH FUNCTIONS AND PSEUDO-RANDOM FUNCTIONS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/018652 International Application No.: PCT/US1996/017449
Publication Date: 22.05.1997 International Filing Date: 31.10.1996
Chapter 2 Demand Filed: 27.05.1997
IPC:
G06F 7/58 (2006.01) ,H04L 9/32 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
7
Methods or arrangements for processing data by operating upon the order or content of the data handled
58
Random or pseudo-random number generators
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
32
including means for verifying the identity or authority of a user of the system
Applicants:
BELL COMMUNICATIONS RESEARCH, INC. [US/US]; 445 South Street Morristown, NJ 07960-6438, US
Inventors:
AIELLO, William, A.; US
VENKATESAN, Ramarathnam; US
Agent:
GIORDANO, Joseph ; International Coordinator Rm. 1G112R 445 South Street Morristown, NJ 07960-6438, US
Priority Data:
08/559,21316.11.1995US
Title (EN) EFFICIENT CRYPTOGRAPHIC HASH FUNCTIONS AND METHODS FOR AMPLIFYING THE SECURITY OF HASH FUNCTIONS AND PSEUDO-RANDOM FUNCTIONS
(FR) FONCTIONS EFFICACES DE HACHAGE CRYPTOGRAPHIQUE ET PROCEDES DE RENFORCEMENT DE LA SECURITE DES FONCTIONS DE HACHAGE ET DES FONCTIONS PSEUDO-ALEATOIRES
Abstract:
(EN) 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.
(FR) 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 ci(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 kj sur le bus (351). La clé K est la concaténation de huit kj.
Designated States: CA, JP
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0861539CA2237941