Convert ghash to the new crypto algorithm scheme

1 files changed, 0 insertions, 147 deletions

diff --git a/src/crypto.c b/src/crypto.c
deleted file mode 100644
index 1583349..0000000
--- a/src/crypto.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
-  Copyright (c) 2012-2013, Matthias Schiffer <mschiffer@universe-factory.net>
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without
-  modification, are permitted provided that the following conditions are met:
-
-    1. Redistributions of source code must retain the above copyright notice,
-       this list of conditions and the following disclaimer.
-    2. Redistributions in binary form must reproduce the above copyright notice,
-       this list of conditions and the following disclaimer in the documentation
-       and/or other materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
-  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
-  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
-  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-
-#include "fastd.h"
-#include "crypto.h"
-
-
-#ifdef USE_CRYPTO_GHASH
-#ifdef WITH_CRYPTO_GHASH_BUILTIN
-
-struct fastd_crypto_ghash_state {
-	fastd_block128_t H[32][16];
-};
-
-
-static const fastd_block128_t r = { .b = {0xe1} };
-
-
-static inline uint8_t shr(fastd_block128_t *out, const fastd_block128_t *in, int n) {
-	size_t i;
-	uint8_t c = 0;
-
-	for (i = 0; i < sizeof(fastd_block128_t); i++) {
-		uint8_t c2 = in->b[i] << (8-n);
-		out->b[i] = (in->b[i] >> n) | c;
-		c = c2;
-	}
-
-	return (c >> (8-n));
-}
-
-static inline void mulH_a(fastd_block128_t *x, const fastd_crypto_ghash_state_t *cstate) {
-	fastd_block128_t out = {};
-
-	int i;
-	for (i = 0; i < 16; i++) {
-		xor_a(&out, &cstate->H[2*i][x->b[i]>>4]);
-		xor_a(&out, &cstate->H[2*i+1][x->b[i]&0xf]);
-	}
-
-	*x = out;
-}
-
-
-static fastd_crypto_ghash_context_t* ghash_init(fastd_context_t *ctx UNUSED) {
-	return (fastd_crypto_ghash_context_t*)1;
-}
-
-static fastd_crypto_ghash_state_t* ghash_set_h(fastd_context_t *ctx UNUSED, const fastd_crypto_ghash_context_t *cctx UNUSED, const fastd_block128_t *h) {
-	fastd_crypto_ghash_state_t *cstate = malloc(sizeof(fastd_crypto_ghash_state_t));
-
-	fastd_block128_t Hbase[4];
-	fastd_block128_t Rbase[4];
-
-	Hbase[0] = *h;
-	Rbase[0] = r;
-
-	int i;
-	for (i = 1; i < 4; i++) {
-		uint8_t carry = shr(&Hbase[i], &Hbase[i-1], 1);
-		if (carry)
-			xor_a(&Hbase[i], &r);
-
-		shr(&Rbase[i], &Rbase[i-1], 1);
-	}
-
-	fastd_block128_t R[16];
-	memset(cstate->H, 0, sizeof(cstate->H));
-	memset(R, 0, sizeof(R));
-
-	for (i = 0; i < 16; i++) {
-		int j;
-		for (j = 0; j < 4; j++) {
-			if (i & (8 >> j)) {
-				xor_a(&cstate->H[0][i], &Hbase[j]);
-				xor_a(&R[i], &Rbase[j]);
-			}
-		}
-	}
-
-	for (i = 1; i < 32; i++) {
-		int j;
-
-		for (j = 0; j < 16; j++) {
-			uint8_t carry = shr(&cstate->H[i][j], &cstate->H[i-1][j], 4);
-			xor_a(&cstate->H[i][j], &R[carry]);
-		}
-	}
-
-	return cstate;
-}
-
-static bool ghash_hash(fastd_context_t *ctx UNUSED, const fastd_crypto_ghash_state_t *cstate, fastd_block128_t *out, const fastd_block128_t *in, size_t n_blocks) {
-	memset(out, 0, sizeof(fastd_block128_t));
-
-	size_t i;
-	for (i = 0; i < n_blocks; i++) {
-		xor_a(out, &in[i]);
-		mulH_a(out, cstate);
-	}
-
-	return true;
-}
-
-static void ghash_free_state(fastd_context_t *ctx UNUSED, fastd_crypto_ghash_state_t *cstate) {
-	free(cstate);
-}
-
-static void ghash_free(fastd_context_t *ctx UNUSED, fastd_crypto_ghash_context_t *cctx UNUSED) {
-}
-
-const fastd_crypto_ghash_t fastd_crypto_ghash_builtin = {
-	.name = "builtin",
-
-	.init = ghash_init,
-	.set_h = ghash_set_h,
-	.hash = ghash_hash,
-
-	.free_state = ghash_free_state,
-	.free = ghash_free,
-};
-
-#endif
-#endif