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);


gnutls_mac_algorithm_t algorithm

the hash algorithm to use

const void * key

the key to use

size_t keylen

the length of the key

const void * ptext

the data to hash

size_t ptext_len

the length of data to hash

void * digest

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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See Also

The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit


3.6.9 gnutls