Provided by: libkcapi-dev_1.1.3-1_amd64
kcapi_md_hmac_sha224 - HMAC SHA-224 keyed message digest on one buffer
int32_t kcapi_md_hmac_sha224(const uint8_t * key, uint32_t keylen, const uint8_t * in, uint32_t inlen, uint8_t * out, uint32_t outlen);
key [in] buffer with HMAC key keylen [in] length of HMAC key buffer in [in] buffer with input data inlen [in] length of input buffer out [out] buffer for message digest outlen [in] length of out
With this one-shot convenience function, a keyed message digest of the given buffer is generated. The output buffer must be allocated by the caller and have at least the length of the message digest size for the chosen keyed message digest. return size of message digest upon success; -EIO - data cannot be obtained; -ENOMEM - buffer is too small for the complete message digest, the buffer is filled with the truncated message digest
Stephan Mueller <email@example.com> Author.