Patent ID: 8412956
Filing Date: 2013-04-02
Classification: G06F,G06Q,G07F

Abstract:
1. A cryptographic processing method within an electronic entity comprising a processor, a data input-output element and a cryptographic element, said method comprising the steps of identifying within said electronic unit a sequence to be subjected to cryptographic processing in incoming data received by said input-output element; setting up a direct bidirectional data transmission connection between said input-output element and said cryptographic element so as to route said sequence directly from said input-output element to the cryptographic element; sending from the processor to the cryptographic element an instruction for initiating cryptographic processing on said routed sequence with keys sent by the processor according to an encryption or decryption mode of operation selected by the processor; and applying said cryptographic processing to said sequence according to said information received from said processor, wherein decryption key(s) never leave the card.