| 摘要 |
One embodiment is in the form of a Self-Service Terminal (102), such as an automated teller machine (ATM). The terminal (102) includes a peripheral device (112), such as a cash dispenser, and a security controller device (106 or 108) including a memory device and a coupling to the peripheral device (113). The security controller device (106 or 108) is operable to perform data processing activities including receiving peripheral device identifying data from the peripheral device (112) and transmitting a public key (SC pk ) of the security controller device (106 or 108) to the peripheral device (112). The security controller (106 or 108) may then decrypt a received peripheral device encryption key (Ki) according to SC pk , generate a first security controller encryption key (Ke 1 ), and generate a first message authentication code key and encrypt the first message authentication code key according to Ke 1 to obtain (Km 1 )Ke 1 . (Km 1 )Ke 1 may then be stored in the memory device and transmitted to the peripheral device (112). |
