KECCAK1600_WIDTH
(KECCAK1600_WIDTH - bitlen * 2) / 8), \
shake_ctrl, (KECCAK1600_WIDTH - bitlen * 2) / 8), \
#define SHA3_BLOCKSIZE(bitlen) (KECCAK1600_WIDTH - bitlen * 2) / 8
unsigned char buf[KECCAK1600_WIDTH / 8 - 32];