Portable data storage device with encryption system

G - Physics – 06 – F

Patent

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Details

G06F 12/14 (2006.01) G06F 13/00 (2006.01) G06F 13/12 (2006.01) H04L 9/00 (2006.01)

Patent

CA 2564576

A portable data storage device has a non-volatile memory (3) for storing user data, an interface section (7) for receiving and transmitting data to a host, and a master control unit (1) for transferring data to and from the non- volatile memory (3). The portable data storage device further includes an integrated circuit (13) for generating a public/private key pair. The portable data storage device is arranged to transmit at least one of the keys out of the device. In different embodiments, the host can verify that the data it receives is correct, and the device can verify that the host has received the correct data.

L'invention concerne un dispositif de stockage de données présentant une mémoire non volatile (3) permettant de stocker des données utilisateurs, une partie interface (7) destinée à recevoir et à transmettre des données à un hôte, et une unité de commande maître (1) destinée à transférer des données de et vers la mémoire non volatile (3). Le dispositif de stockage de données portable comprend, de plus, un circuit intégré (13) permettant de produire une paire de clés publique/privée. Le dispositif de stockage de données portable est conçu pour transmettre au moins une des clés hors du dispositif. Dans de nombreux modes de réalisation, l'hôte peut vérifier que les données qu'il reçoit sont correctes, et le dispositif peut vérifier que l'hôte a reçu des données correctes.

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