CHACHA_IV_SIZE
.ivsize = CHACHA_IV_SIZE,
const u8 iv[CHACHA_IV_SIZE])
u8 iv[CHACHA_IV_SIZE];
if (chacha->ivsize != CHACHA_IV_SIZE)
CHACHA_IV_SIZE - sizeof(leicb) - ctx->saltlen);
.ivsize = CHACHA_IV_SIZE,
.ivsize = CHACHA_IV_SIZE,
const u8 iv[at_least CHACHA_IV_SIZE])
u8 iv[CHACHA_IV_SIZE];