DATA CIPHER AND DECIPHER BASED ON DEVICE AND DATA AUTHENTICATION
First Claim
Patent Images
1. A method comprising:
- determining, by a first device, a session key for generating a message authentication code (MAC) tag associated with a communication session between the first device and a second device;
determining, by the first device, based at least in part on the session key, a crypto key for coding a message associated with the second device; and
coding, by the first device, based on the crypto key, the message.
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Abstract
A device is described that determines a session key for generating a message authentication code (MAC) tag associated with a communication session between the device and a second device. The device determines, based at least in part on the session key, a crypto key for encoding or decoding a message associated with the second device. The device then encodes or decodes the message based on the crypto key.
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Citations
26 Claims
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1. A method comprising:
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determining, by a first device, a session key for generating a message authentication code (MAC) tag associated with a communication session between the first device and a second device; determining, by the first device, based at least in part on the session key, a crypto key for coding a message associated with the second device; and coding, by the first device, based on the crypto key, the message. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A first device comprising at least one processor operable to:
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determine a session key for generating a message authentication code (MAC) tag associated with a communication session between the first device and a second device; determine, based at least in part on the session key, a crypto key for encoding or decoding a message associated with the second device; and code, based on the crypto key, the message. - View Dependent Claims (19, 20, 22, 23, 25)
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21. The first device of claim IS, wherein the at least one processor is further operable to after encoding the message based on the crypto key, transmit, to the second device, the message.
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26. A system comprising:
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means for determining a session key for generating a message authentication code (MAC) tag associated with a communication session between a first device and a second device; means for determining, based at least in part on the session key, a crypto key for encoding or decoding a message associated with the second device; and means for coding, based on the crypto key, the message.
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Specification