Function blake2b

freebsd/contrib/libb2/blake2b-ref.c:358–384

}

int blake2b( uint8_t *out, const void *in, const void *key, size_t outlen, size_t inlen, size_t keylen )
{
  blake2b_state S[1];

  /* Verify parameters */
  if ( NULL == in && inlen > 0 ) return -1;

  if ( NULL == out ) return -1;

  if( NULL == key && keylen > 0 ) return -1;

  if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;

  if( keylen > BLAKE2B_KEYBYTES ) return -1;

  if( keylen > 0 )
  {
    if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
  }
  else
  {
    if( blake2b_init( S, outlen ) < 0 ) return -1;
  }

  if( blake2b_update( S, ( uint8_t * )in, inlen ) < 0 ) return -1;
  return blake2b_final( S, out, outlen );
}