Patent ID: 7979717
Filing Date: 2011-07-12
Classification: H04L

Abstract:
1. A secure removable card having electrical connections for communication therewith, comprising: a first integrated circuit die, said first die including a processor; a second integrated circuit die, said second die including a non-volatile memory for storing a secret key, and a controller for controlling the operation of the non-volatile memory; a bus connecting the first die with the second die; wherein the processor for generating a key pair, having a public key portion and a private key portion upon power up, with said key pair generated not based upon stored data, and for transferring the public key portion across the bus to the second die; wherein the controller for receiving the public key and for encrypting the secret key with the public key to generate a first encrypted key, and for transferring the first encrypted key across the bus to the first die; and wherein the processor for receiving the first encrypted key and for decrypting the first encrypted key to recover the secret key; and for encrypting data with said secret key for communicating along the electrical connections external to the card.