EALG_MAX_BLOCK_LEN
uint8_t qsc_iv_buf[EALG_MAX_BLOCK_LEN];
uint8_t cri_iv[EALG_MAX_BLOCK_LEN]; /* IV to use */
u_char tmp_iv[EALG_MAX_BLOCK_LEN];
cprng_fast(iv, EALG_MAX_BLOCK_LEN);
uint32_t blkbuf[howmany(EALG_MAX_BLOCK_LEN, sizeof(uint32_t))];
u_char iv[EALG_MAX_BLOCK_LEN];
unsigned char iv[EALG_MAX_BLOCK_LEN], blk[EALG_MAX_BLOCK_LEN], *idat;
unsigned char *ivp, piv[EALG_MAX_BLOCK_LEN];