Data-mover controller with plural registers for supporting...

H - Electricity – 04 – L

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H04L 9/00 (2006.01)

Patent

CA 2567818

A data processing system ciphers and transfers data between a first memory unit and a second memory unit, such as, for example, between a share memory architecture (SMA) static random access memory (SRAM) and a double data rate (DDR) synchronous dynamic random access memory (SDRAM). The system includes a ciphering engine and a data-mover controller. The data-mover controller includes at least one register having a field that specifies whether or not the transferred data should be ciphered. If the field specifies that the transferred data should be ciphered, the field also specifies the type of ciphering that is to be performed, such as a third generation partnership project (3GPP) standardized confidentially cipher algorithm "f8" or integrity cipher algorithm "f9".

L'invention concerne un système de traitement de données destiné à crypter et à transférer des données entre une première unité mémoire et une deuxième unité mémoire, par exemple entre une mémoire RAM statique (SRAM) à architecture de mémoire partagée (SMA) et une mémoire DRAM synchrone (SDRAM) à double débit binaire (DDR). Ce système comprend un moteur de cryptage et un contrôleur de déplaceur de données. Ledit contrôleur comprend au moins un registre comportant un champ spécifiant si les données transférées doivent être cryptées ou non. Si le champ spécifie que les données transférées doivent être cryptées, il spécifie également le type de cryptage qui doit être réalisé, tel qu'un algorithme "f8" de cryptage à normalisation confidentielle de projet de partenariat de troisième génération (3GPP) ou un algorithme "f9" de cryptage d'intégrité.

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