An apparatus for providing a secure processing environment

G - Physics – 06 – F

Patent

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G06F 1/00 (2006.01) G06F 12/14 (2006.01) G06F 21/00 (2006.01)

Patent

CA 2309627

An apparatus for providing a secure processing environment is disclosed. In one embodiment, the apparatus includes a read/write memory for storing encrypted information. It also includes a processor, a cipherer and an authenticator. The cipherer is in communication with the read/write memory for receiving encrypted information therefrom and is configured to decrypt the encrypted information into decrypted information to be returned to the memory for subsequent use by the processor. The authenticator authenticates the decrypted information prior to use by the processor and reauthenticates the information prior to re-encryption by the cipherer.

L'invention concerne un appareil destiné à générer un environnement pour traitement de sécurisation. Suivant une forme d'exécution, l'appareil comprend une mémoire vive pour la mémorisation d'informations chiffrées, ainsi qu'un processeur, un chiffreur et un authentifieur. Le chiffreur est en communication avec la mémoire vive pour recevoir de celle-ci des informations chiffrées et est configuré pour décrypter les informations chiffrées en informations décryptées destinées à retourner dans la mémoire en vue d'être utilisées ultérieurement par le processeur. L'authentifieur authentifie les informations décryptées avant utilisation par le processeur et réauthentifie les informations avant rechiffrement par le chiffreur.

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