CPC H04L 9/0656 (2013.01) [H04L 9/12 (2013.01); H04L 63/10 (2013.01); H04L 63/104 (2013.01); H04W 12/02 (2013.01); H04W 12/033 (2021.01); H04W 12/04 (2013.01); H04L 2209/80 (2013.01); H04W 4/70 (2018.02)] | 20 Claims |
1. A method, comprising:
receiving an initial layer-3 message, wherein the initial layer-3 message comprises an indication indicating that a part of the initial layer-3 message is encrypted;
generating a keystream; and
decrypting the encrypted part of the initial layer-3 message by performing an exclusive OR operation on the keystream and the initial layer-3 message.
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