C++ (Cpp) twofish_ecb_dec_8way примеры использования

Пример #1

Файл: twofish_avx2_glue.c Проект: 18712886438/android_kernel_motorola_quark

static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
{
	const unsigned int bsize = TF_BLOCK_SIZE;
	struct crypt_priv *ctx = priv;
	int i;

	ctx->fpu_enabled = twofish_fpu_begin(ctx->fpu_enabled, nbytes);

	while (nbytes >= TF_AVX2_PARALLEL_BLOCKS * bsize) {
		twofish_ecb_dec_16way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * TF_AVX2_PARALLEL_BLOCKS;
		nbytes -= bsize * TF_AVX2_PARALLEL_BLOCKS;
	}

	while (nbytes >= 8 * bsize) {
		twofish_ecb_dec_8way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * 8;
		nbytes -= bsize * 8;
	}

	while (nbytes >= 3 * bsize) {
		twofish_dec_blk_3way(ctx->ctx, srcdst, srcdst);
		srcdst += bsize * 3;
		nbytes -= bsize * 3;
	}

	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
		twofish_dec_blk(ctx->ctx, srcdst, srcdst);
}

Пример #2

static void decrypt_callback(void *priv, u8 *srcdst, unsigned int nbytes)
{
	const unsigned int bsize = TF_BLOCK_SIZE;
	struct crypt_priv *ctx = priv;
	int i;

	ctx->fpu_enabled = twofish_fpu_begin(ctx->fpu_enabled, nbytes);

	if (nbytes == bsize * TWOFISH_PARALLEL_BLOCKS) {
		twofish_ecb_dec_8way(ctx->ctx, srcdst, srcdst);
		return;
	}

	for (i = 0; i < nbytes / (bsize * 3); i++, srcdst += bsize * 3)
		twofish_dec_blk_3way(ctx->ctx, srcdst, srcdst);

	nbytes %= bsize * 3;

	for (i = 0; i < nbytes / bsize; i++, srcdst += bsize)
		twofish_dec_blk(ctx->ctx, srcdst, srcdst);
}