gnutls_hmac_fast(3) gnutls gnutls_hmac_fast(3)

gnutls_hmac_fast - API function

#include <gnutls/crypto.h>

int gnutls_hmac_fast(gnutls_mac_algorithm_t algorithm, const void * key, size_t keylen, const void * ptext, size_t ptext_len, void * digest);

the hash algorithm to use
the key to use
the length of the key
the data to hash
the length of data to hash
is the output value of the hash

This convenience function will hash the given data and return output on a single call. Note, this call will not work for MAC algorithms that require nonce (like UMAC or GMAC).

Zero or a negative error code on error.


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3.8.5 gnutls