Function blake2b_init_param

freebsd/contrib/libb2/blake2b-ref.c:169–180

init xors IV with input parameter block */

/* init xors IV with input parameter block */
int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
{
  blake2b_init0( S );
  uint8_t *p = ( uint8_t * )( P );

  /* IV XOR ParamBlock */
  for( size_t i = 0; i < 8; ++i )
    S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );

  S->outlen = P->digest_length;
  return 0;
}