memcpy(buf_append(buf,16),macacc,16);
/* Serpent-CBC. We expand the ID as for CBCMAC, do the encryption,
and prepend the IV before increasing it. */
memset(iv,0,16);
put_uint32(iv, ti->cryptiv);
memcpy(buf_append(buf,16),macacc,16);
/* Serpent-CBC. We expand the ID as for CBCMAC, do the encryption,
and prepend the IV before increasing it. */
memset(iv,0,16);
put_uint32(iv, ti->cryptiv);