Patent ID: 11960589
Assignee: APPLE INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. The system of claim 1, wherein the processor is further configured to cause:
receiving, at the second component, the message comprising the encrypted block of information and the message authentication code;
accessing, from the second memory, the second previous version of the second dynamic unique key, the second previous version of the second dynamic unique key being at least partially based on a second original unique key;
generating, at the second component, the second current version of the second dynamic unique key based on the second previous version of the dynamic unique key;
generating, at the second component, the control MAC based on the received encrypted block of information and the second current version of the dynamic unique key; and
upon determining, at the second component, that the control MAC matches the MAC, determining that the message is authentic and that therefore the first component originated the message.