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1. WO2012066023 - APPARATUS AND METHOD FOR CALCULATING A SHA-2 HASH FUNCTION IN A GENERAL PURPOSE PROCESSOR

Publication Number WO/2012/066023
Publication Date 24.05.2012
International Application No. PCT/EP2011/070225
International Filing Date 16.11.2011
IPC
G06F 7/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
7Methods or arrangements for processing data by operating upon the order or content of the data handled
CPC
G06F 7/00
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
7Methods or arrangements for processing data by operating upon the order or content of the data handled
H04L 2209/125
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
12Details relating to cryptographic hardware or logic circuitry
125Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations
H04L 9/3239
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3236using cryptographic hash functions
3239involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
Applicants
  • INTERNATIONAL BUSINESS MACHINES CORPORATION [US]/[US] (AllExceptUS)
  • PANITZ, Dr., Philipp [DE]/[DE] (UsOnly)
  • LEENSTRA, Dr., Jens [NL]/[DE] (UsOnly)
  • OEHLER, Dr., Philipp [AT]/[DE] (UsOnly)
  • KALTENBACH, Markus [DE]/[DE] (UsOnly)
  • NIGGEMEIER, Tim [DE]/[DE] (UsOnly)
  • BOERSMA, Maarten [NL]/[DE] (UsOnly)
Inventors
  • PANITZ, Dr., Philipp
  • LEENSTRA, Dr., Jens
  • OEHLER, Dr., Philipp
  • KALTENBACH, Markus
  • NIGGEMEIER, Tim
  • BOERSMA, Maarten
Agents
  • KUISMA, Sirpa
Priority Data
10191825.819.11.2010EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) APPARATUS AND METHOD FOR CALCULATING A SHA-2 HASH FUNCTION IN A GENERAL PURPOSE PROCESSOR
(FR) APPAREIL ET PROCÉDÉ DE CALCUL D'UNE FONCTION DE HACHAGE SHA-2 DANS UN PROCESSEUR UNIVERSEL
Abstract
(EN)
The invention relates to a general purpose processor comprising an execution unit (2) adapted for performing a processor instruction, whereby the execution unit (2) comprises an integrated circuit and the integrated circuit is solely designed for calculating a SHA-2 sigma function (1). As such calculation of the SHA-2 sigma function (1) can be performed by the integrated circuit with a single instruction, the method according to the invention allows for a less costly calculation of the SHA-2 sigma function (1) respectively of the SHA-2 function than prior art.
(FR)
La présente invention concerne un processeur universel comprenant une unité d'exécution (2) conçue pour exécuter une instruction du processeur. L'unité d'exécution (2) comprend un circuit intégré exclusivement conçu pour calculer une fonction sigma SHA-2 (1). Puisque ce calcul de la fonction sigma SHA-2 (1) peut être effectué par le circuit intégré suite à une seule instruction, le procédé selon l'invention rend le calcul de la fonction sigma SHA-2 (1) moins coûteux que celui de la fonction SHA-2 de l'art antérieur.
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