
WirelessUSB™ Protocol 2.2
2.6.2.1AES Key Management
The encrypt key is stored on the keyboard and the decrypt key is stored on the bridge during compil- ing time. There is no dynamic encrypt key exchange in the running time.
2.6.3Encryption and Power Consumption Trade Off
If the keyboard encryption is enabled, each key code is encrypted into an 8 byte key code (TEA) or 16 byte key code (AES). When a single key is pressed, a
CY4672 Reference Design Guide, Document # | 31 |
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