Key transformation unit for a tamper resistant module

摘要

Methods, apparati, and computer-readable media for securely transporting a software application onto a tamper resistant module (TRM) ( 103 ) by using an individualized TRM key set. A method embodiment of the present invention comprises: storing a key pair unique to the TRM ( 103 ) in a memory located on the TRM ( 103 ), where the key pair comprises a TRM public key ( 150 ) and a TRM private key ( 190 ); retrieving the TRM public key from the TRM; encrypting a portion of the software application using the TRM public key ( 150 ); transmitting the encrypted software application to the TRM ( 103 ); and recovering and decrypting the encrypted software application using the TRM private key ( 190 ).