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TM4C129ENCPDT: HMAC key size

Part Number: TM4C129ENCPDT

Hello,

documentation in driverlib (shamd5.c) says, that size of HMAC key, passed to SHAMD5HMACKeySet() or SHAMD5HMACPPKeySet() must be 512 bytes. Looks like mistake, in case of HMAC-SHA256 key should be 512 bits (64 bytes).