| 摘要 |
The invention concerns a case co-operating with a safe storage unit comprising protected memory and processor. The device comprises: means for receiving compressed encrypted data; means for decrypting (r5; r3, r4) the data received; and means for delivering (r1), in a decoded form exploitable by a user, decompressed decrypted data. The safe microcircuit (M; M') incorporates the set of decrypting means (r5; r3, r4) and at least part of the decompressing means (r2), the decrypted compressed data flow ( phi ) delivered by the decrypting means not being accessible from outside the safe microcircuit. The safe microcircuit can in particular belong to a card separate from the case, the link between microcircuit and case being a series-type link using at least one of the RFU contacts as per ISO 7816-2 for delivering the decrypted and partially or completely decompressed data flow. |
