Patent ID: 11917410
Assignee: GOOGLE LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method in a base station that supports a plurality of message authentication code (MAC) lengths for integrity protection of wireless communications, the method comprising:
generating a first message including (i) an information element indicating that a first MAC length, of the plurality of MAC lengths, is to be used for integrity protection and (ii) a MAC having a second MAC length of the plurality of MAC lengths;
transmitting the first message to a user device;
after transmitting the first message, receiving, from the user device, a second message including a MAC having the first MAC length;
computing an expected MAC having the first MAC length; and
comparing the expected MAC to the MAC in the second message to verify that the MAC in the second message is a valid MAC.