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Diffstat (limited to 'thirdparty/openssl/crypto/modes/ccm128.c')
-rw-r--r--thirdparty/openssl/crypto/modes/ccm128.c479
1 files changed, 0 insertions, 479 deletions
diff --git a/thirdparty/openssl/crypto/modes/ccm128.c b/thirdparty/openssl/crypto/modes/ccm128.c
deleted file mode 100644
index c1ded0f914..0000000000
--- a/thirdparty/openssl/crypto/modes/ccm128.c
+++ /dev/null
@@ -1,479 +0,0 @@
-/* ====================================================================
- * Copyright (c) 2011 The OpenSSL Project. 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.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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 <openssl/crypto.h>
-#include "modes_lcl.h"
-#include <string.h>
-
-#ifndef MODES_DEBUG
-# ifndef NDEBUG
-# define NDEBUG
-# endif
-#endif
-#include <assert.h>
-
-/*
- * First you setup M and L parameters and pass the key schedule. This is
- * called once per session setup...
- */
-void CRYPTO_ccm128_init(CCM128_CONTEXT *ctx,
- unsigned int M, unsigned int L, void *key,
- block128_f block)
-{
- memset(ctx->nonce.c, 0, sizeof(ctx->nonce.c));
- ctx->nonce.c[0] = ((u8)(L - 1) & 7) | (u8)(((M - 2) / 2) & 7) << 3;
- ctx->blocks = 0;
- ctx->block = block;
- ctx->key = key;
-}
-
-/* !!! Following interfaces are to be called *once* per packet !!! */
-
-/* Then you setup per-message nonce and pass the length of the message */
-int CRYPTO_ccm128_setiv(CCM128_CONTEXT *ctx,
- const unsigned char *nonce, size_t nlen, size_t mlen)
-{
- unsigned int L = ctx->nonce.c[0] & 7; /* the L parameter */
-
- if (nlen < (14 - L))
- return -1; /* nonce is too short */
-
- if (sizeof(mlen) == 8 && L >= 3) {
- ctx->nonce.c[8] = (u8)(mlen >> (56 % (sizeof(mlen) * 8)));
- ctx->nonce.c[9] = (u8)(mlen >> (48 % (sizeof(mlen) * 8)));
- ctx->nonce.c[10] = (u8)(mlen >> (40 % (sizeof(mlen) * 8)));
- ctx->nonce.c[11] = (u8)(mlen >> (32 % (sizeof(mlen) * 8)));
- } else
- ctx->nonce.u[1] = 0;
-
- ctx->nonce.c[12] = (u8)(mlen >> 24);
- ctx->nonce.c[13] = (u8)(mlen >> 16);
- ctx->nonce.c[14] = (u8)(mlen >> 8);
- ctx->nonce.c[15] = (u8)mlen;
-
- ctx->nonce.c[0] &= ~0x40; /* clear Adata flag */
- memcpy(&ctx->nonce.c[1], nonce, 14 - L);
-
- return 0;
-}
-
-/* Then you pass additional authentication data, this is optional */
-void CRYPTO_ccm128_aad(CCM128_CONTEXT *ctx,
- const unsigned char *aad, size_t alen)
-{
- unsigned int i;
- block128_f block = ctx->block;
-
- if (alen == 0)
- return;
-
- ctx->nonce.c[0] |= 0x40; /* set Adata flag */
- (*block) (ctx->nonce.c, ctx->cmac.c, ctx->key), ctx->blocks++;
-
- if (alen < (0x10000 - 0x100)) {
- ctx->cmac.c[0] ^= (u8)(alen >> 8);
- ctx->cmac.c[1] ^= (u8)alen;
- i = 2;
- } else if (sizeof(alen) == 8
- && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
- ctx->cmac.c[0] ^= 0xFF;
- ctx->cmac.c[1] ^= 0xFF;
- ctx->cmac.c[2] ^= (u8)(alen >> (56 % (sizeof(alen) * 8)));
- ctx->cmac.c[3] ^= (u8)(alen >> (48 % (sizeof(alen) * 8)));
- ctx->cmac.c[4] ^= (u8)(alen >> (40 % (sizeof(alen) * 8)));
- ctx->cmac.c[5] ^= (u8)(alen >> (32 % (sizeof(alen) * 8)));
- ctx->cmac.c[6] ^= (u8)(alen >> 24);
- ctx->cmac.c[7] ^= (u8)(alen >> 16);
- ctx->cmac.c[8] ^= (u8)(alen >> 8);
- ctx->cmac.c[9] ^= (u8)alen;
- i = 10;
- } else {
- ctx->cmac.c[0] ^= 0xFF;
- ctx->cmac.c[1] ^= 0xFE;
- ctx->cmac.c[2] ^= (u8)(alen >> 24);
- ctx->cmac.c[3] ^= (u8)(alen >> 16);
- ctx->cmac.c[4] ^= (u8)(alen >> 8);
- ctx->cmac.c[5] ^= (u8)alen;
- i = 6;
- }
-
- do {
- for (; i < 16 && alen; ++i, ++aad, --alen)
- ctx->cmac.c[i] ^= *aad;
- (*block) (ctx->cmac.c, ctx->cmac.c, ctx->key), ctx->blocks++;
- i = 0;
- } while (alen);
-}
-
-/* Finally you encrypt or decrypt the message */
-
-/*
- * counter part of nonce may not be larger than L*8 bits, L is not larger
- * than 8, therefore 64-bit counter...
- */
-static void ctr64_inc(unsigned char *counter)
-{
- unsigned int n = 8;
- u8 c;
-
- counter += 8;
- do {
- --n;
- c = counter[n];
- ++c;
- counter[n] = c;
- if (c)
- return;
- } while (n);
-}
-
-int CRYPTO_ccm128_encrypt(CCM128_CONTEXT *ctx,
- const unsigned char *inp, unsigned char *out,
- size_t len)
-{
- size_t n;
- unsigned int i, L;
- unsigned char flags0 = ctx->nonce.c[0];
- block128_f block = ctx->block;
- void *key = ctx->key;
- union {
- u64 u[2];
- u8 c[16];
- } scratch;
-
- if (!(flags0 & 0x40))
- (*block) (ctx->nonce.c, ctx->cmac.c, key), ctx->blocks++;
-
- ctx->nonce.c[0] = L = flags0 & 7;
- for (n = 0, i = 15 - L; i < 15; ++i) {
- n |= ctx->nonce.c[i];
- ctx->nonce.c[i] = 0;
- n <<= 8;
- }
- n |= ctx->nonce.c[15]; /* reconstructed length */
- ctx->nonce.c[15] = 1;
-
- if (n != len)
- return -1; /* length mismatch */
-
- ctx->blocks += ((len + 15) >> 3) | 1;
- if (ctx->blocks > (U64(1) << 61))
- return -2; /* too much data */
-
- while (len >= 16) {
-#if defined(STRICT_ALIGNMENT)
- union {
- u64 u[2];
- u8 c[16];
- } temp;
-
- memcpy(temp.c, inp, 16);
- ctx->cmac.u[0] ^= temp.u[0];
- ctx->cmac.u[1] ^= temp.u[1];
-#else
- ctx->cmac.u[0] ^= ((u64 *)inp)[0];
- ctx->cmac.u[1] ^= ((u64 *)inp)[1];
-#endif
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
- (*block) (ctx->nonce.c, scratch.c, key);
- ctr64_inc(ctx->nonce.c);
-#if defined(STRICT_ALIGNMENT)
- temp.u[0] ^= scratch.u[0];
- temp.u[1] ^= scratch.u[1];
- memcpy(out, temp.c, 16);
-#else
- ((u64 *)out)[0] = scratch.u[0] ^ ((u64 *)inp)[0];
- ((u64 *)out)[1] = scratch.u[1] ^ ((u64 *)inp)[1];
-#endif
- inp += 16;
- out += 16;
- len -= 16;
- }
-
- if (len) {
- for (i = 0; i < len; ++i)
- ctx->cmac.c[i] ^= inp[i];
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
- (*block) (ctx->nonce.c, scratch.c, key);
- for (i = 0; i < len; ++i)
- out[i] = scratch.c[i] ^ inp[i];
- }
-
- for (i = 15 - L; i < 16; ++i)
- ctx->nonce.c[i] = 0;
-
- (*block) (ctx->nonce.c, scratch.c, key);
- ctx->cmac.u[0] ^= scratch.u[0];
- ctx->cmac.u[1] ^= scratch.u[1];
-
- ctx->nonce.c[0] = flags0;
-
- return 0;
-}
-
-int CRYPTO_ccm128_decrypt(CCM128_CONTEXT *ctx,
- const unsigned char *inp, unsigned char *out,
- size_t len)
-{
- size_t n;
- unsigned int i, L;
- unsigned char flags0 = ctx->nonce.c[0];
- block128_f block = ctx->block;
- void *key = ctx->key;
- union {
- u64 u[2];
- u8 c[16];
- } scratch;
-
- if (!(flags0 & 0x40))
- (*block) (ctx->nonce.c, ctx->cmac.c, key);
-
- ctx->nonce.c[0] = L = flags0 & 7;
- for (n = 0, i = 15 - L; i < 15; ++i) {
- n |= ctx->nonce.c[i];
- ctx->nonce.c[i] = 0;
- n <<= 8;
- }
- n |= ctx->nonce.c[15]; /* reconstructed length */
- ctx->nonce.c[15] = 1;
-
- if (n != len)
- return -1;
-
- while (len >= 16) {
-#if defined(STRICT_ALIGNMENT)
- union {
- u64 u[2];
- u8 c[16];
- } temp;
-#endif
- (*block) (ctx->nonce.c, scratch.c, key);
- ctr64_inc(ctx->nonce.c);
-#if defined(STRICT_ALIGNMENT)
- memcpy(temp.c, inp, 16);
- ctx->cmac.u[0] ^= (scratch.u[0] ^= temp.u[0]);
- ctx->cmac.u[1] ^= (scratch.u[1] ^= temp.u[1]);
- memcpy(out, scratch.c, 16);
-#else
- ctx->cmac.u[0] ^= (((u64 *)out)[0] = scratch.u[0] ^ ((u64 *)inp)[0]);
- ctx->cmac.u[1] ^= (((u64 *)out)[1] = scratch.u[1] ^ ((u64 *)inp)[1]);
-#endif
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
-
- inp += 16;
- out += 16;
- len -= 16;
- }
-
- if (len) {
- (*block) (ctx->nonce.c, scratch.c, key);
- for (i = 0; i < len; ++i)
- ctx->cmac.c[i] ^= (out[i] = scratch.c[i] ^ inp[i]);
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
- }
-
- for (i = 15 - L; i < 16; ++i)
- ctx->nonce.c[i] = 0;
-
- (*block) (ctx->nonce.c, scratch.c, key);
- ctx->cmac.u[0] ^= scratch.u[0];
- ctx->cmac.u[1] ^= scratch.u[1];
-
- ctx->nonce.c[0] = flags0;
-
- return 0;
-}
-
-static void ctr64_add(unsigned char *counter, size_t inc)
-{
- size_t n = 8, val = 0;
-
- counter += 8;
- do {
- --n;
- val += counter[n] + (inc & 0xff);
- counter[n] = (unsigned char)val;
- val >>= 8; /* carry bit */
- inc >>= 8;
- } while (n && (inc || val));
-}
-
-int CRYPTO_ccm128_encrypt_ccm64(CCM128_CONTEXT *ctx,
- const unsigned char *inp, unsigned char *out,
- size_t len, ccm128_f stream)
-{
- size_t n;
- unsigned int i, L;
- unsigned char flags0 = ctx->nonce.c[0];
- block128_f block = ctx->block;
- void *key = ctx->key;
- union {
- u64 u[2];
- u8 c[16];
- } scratch;
-
- if (!(flags0 & 0x40))
- (*block) (ctx->nonce.c, ctx->cmac.c, key), ctx->blocks++;
-
- ctx->nonce.c[0] = L = flags0 & 7;
- for (n = 0, i = 15 - L; i < 15; ++i) {
- n |= ctx->nonce.c[i];
- ctx->nonce.c[i] = 0;
- n <<= 8;
- }
- n |= ctx->nonce.c[15]; /* reconstructed length */
- ctx->nonce.c[15] = 1;
-
- if (n != len)
- return -1; /* length mismatch */
-
- ctx->blocks += ((len + 15) >> 3) | 1;
- if (ctx->blocks > (U64(1) << 61))
- return -2; /* too much data */
-
- if ((n = len / 16)) {
- (*stream) (inp, out, n, key, ctx->nonce.c, ctx->cmac.c);
- n *= 16;
- inp += n;
- out += n;
- len -= n;
- if (len)
- ctr64_add(ctx->nonce.c, n / 16);
- }
-
- if (len) {
- for (i = 0; i < len; ++i)
- ctx->cmac.c[i] ^= inp[i];
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
- (*block) (ctx->nonce.c, scratch.c, key);
- for (i = 0; i < len; ++i)
- out[i] = scratch.c[i] ^ inp[i];
- }
-
- for (i = 15 - L; i < 16; ++i)
- ctx->nonce.c[i] = 0;
-
- (*block) (ctx->nonce.c, scratch.c, key);
- ctx->cmac.u[0] ^= scratch.u[0];
- ctx->cmac.u[1] ^= scratch.u[1];
-
- ctx->nonce.c[0] = flags0;
-
- return 0;
-}
-
-int CRYPTO_ccm128_decrypt_ccm64(CCM128_CONTEXT *ctx,
- const unsigned char *inp, unsigned char *out,
- size_t len, ccm128_f stream)
-{
- size_t n;
- unsigned int i, L;
- unsigned char flags0 = ctx->nonce.c[0];
- block128_f block = ctx->block;
- void *key = ctx->key;
- union {
- u64 u[2];
- u8 c[16];
- } scratch;
-
- if (!(flags0 & 0x40))
- (*block) (ctx->nonce.c, ctx->cmac.c, key);
-
- ctx->nonce.c[0] = L = flags0 & 7;
- for (n = 0, i = 15 - L; i < 15; ++i) {
- n |= ctx->nonce.c[i];
- ctx->nonce.c[i] = 0;
- n <<= 8;
- }
- n |= ctx->nonce.c[15]; /* reconstructed length */
- ctx->nonce.c[15] = 1;
-
- if (n != len)
- return -1;
-
- if ((n = len / 16)) {
- (*stream) (inp, out, n, key, ctx->nonce.c, ctx->cmac.c);
- n *= 16;
- inp += n;
- out += n;
- len -= n;
- if (len)
- ctr64_add(ctx->nonce.c, n / 16);
- }
-
- if (len) {
- (*block) (ctx->nonce.c, scratch.c, key);
- for (i = 0; i < len; ++i)
- ctx->cmac.c[i] ^= (out[i] = scratch.c[i] ^ inp[i]);
- (*block) (ctx->cmac.c, ctx->cmac.c, key);
- }
-
- for (i = 15 - L; i < 16; ++i)
- ctx->nonce.c[i] = 0;
-
- (*block) (ctx->nonce.c, scratch.c, key);
- ctx->cmac.u[0] ^= scratch.u[0];
- ctx->cmac.u[1] ^= scratch.u[1];
-
- ctx->nonce.c[0] = flags0;
-
- return 0;
-}
-
-size_t CRYPTO_ccm128_tag(CCM128_CONTEXT *ctx, unsigned char *tag, size_t len)
-{
- unsigned int M = (ctx->nonce.c[0] >> 3) & 7; /* the M parameter */
-
- M *= 2;
- M += 2;
- if (len < M)
- return 0;
- memcpy(tag, ctx->cmac.c, M);
- return M;
-}
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