-/* crypto/camellia/camellia_cbc.c -*- mode:C; c-file-style: "eay" -*- */
-/* ====================================================================
- * Copyright (c) 2006 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.
- * ====================================================================
+/*
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#ifndef CAMELLIA_DEBUG
-# ifndef NDEBUG
-# define NDEBUG
-# endif
-#endif
-#include <assert.h>
-#include <stdio.h>
-#include <string.h>
-
#include <openssl/camellia.h>
-#include "cmll_locl.h"
+#include <openssl/modes.h>
void Camellia_cbc_encrypt(const unsigned char *in, unsigned char *out,
- const unsigned long length, const CAMELLIA_KEY *key,
- unsigned char *ivec, const int enc) {
-
- unsigned long n;
- unsigned long len = length;
- unsigned char tmp[CAMELLIA_BLOCK_SIZE];
- const unsigned char *iv = ivec;
- u32 t32[CAMELLIA_BLOCK_SIZE/sizeof(u32)];
- const union { long one; char little; } camellia_endian = {1};
-
-
- assert(in && out && key && ivec);
- assert((CAMELLIA_ENCRYPT == enc)||(CAMELLIA_DECRYPT == enc));
+ size_t len, const CAMELLIA_KEY *key,
+ unsigned char *ivec, const int enc)
+{
- if(((size_t)in|(size_t)out|(size_t)ivec) % sizeof(u32) == 0)
- {
- if (CAMELLIA_ENCRYPT == enc)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- XOR4WORD2((u32 *)out,
- (u32 *)in, (u32 *)iv);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- key->enc(key->rd_key, (u32 *)out);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- iv = out;
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- for(n=0; n < len; ++n)
- out[n] = in[n] ^ iv[n];
- for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = iv[n];
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- key->enc(key->rd_key, (u32 *)out);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- iv = out;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else if (in != out)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(out,in,CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- key->dec(key->rd_key,(u32 *)out);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- XOR4WORD((u32 *)out, (u32 *)iv);
- iv = in;
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)tmp);
- key->dec(key->rd_key, (u32 *)tmp);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)tmp);
- for(n=0; n < len; ++n)
- out[n] = tmp[n] ^ iv[n];
- iv = in;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else /* in == out */
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- key->dec(key->rd_key, (u32 *)out);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- XOR4WORD((u32 *)out, (u32 *)ivec);
- memcpy(ivec, tmp, CAMELLIA_BLOCK_SIZE);
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- key->dec(key->rd_key,(u32 *)out);
- if (camellia_endian.little)
- SWAP4WORD((u32 *)out);
- for(n=0; n < len; ++n)
- out[n] ^= ivec[n];
- for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = tmp[n];
- memcpy(ivec, tmp, CAMELLIA_BLOCK_SIZE);
- }
- }
- }
- else /* no aligned */
- {
- if (CAMELLIA_ENCRYPT == enc)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = in[n] ^ iv[n];
- memcpy(t32, out, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->enc(key->rd_key, t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out, t32, CAMELLIA_BLOCK_SIZE);
- iv = out;
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- for(n=0; n < len; ++n)
- out[n] = in[n] ^ iv[n];
- for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = iv[n];
- memcpy(t32, out, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->enc(key->rd_key, t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out, t32, CAMELLIA_BLOCK_SIZE);
- iv = out;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else if (in != out)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(t32,in,CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->dec(key->rd_key,t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out,t32,CAMELLIA_BLOCK_SIZE);
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] ^= iv[n];
- iv = in;
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(t32, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->dec(key->rd_key, t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out, t32, CAMELLIA_BLOCK_SIZE);
- for(n=0; n < len; ++n)
- out[n] ^= iv[n];
- iv = in;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- memcpy(t32, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->dec(key->rd_key, t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out, t32, CAMELLIA_BLOCK_SIZE);
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] ^= ivec[n];
- memcpy(ivec, tmp, CAMELLIA_BLOCK_SIZE);
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- memcpy(t32, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- key->dec(key->rd_key,t32);
- if (camellia_endian.little)
- SWAP4WORD(t32);
- memcpy(out, t32, CAMELLIA_BLOCK_SIZE);
- for(n=0; n < len; ++n)
- out[n] ^= ivec[n];
- for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = tmp[n];
- memcpy(ivec, tmp, CAMELLIA_BLOCK_SIZE);
- }
- }
- }
+ if (enc)
+ CRYPTO_cbc128_encrypt(in, out, len, key, ivec,
+ (block128_f) Camellia_encrypt);
+ else
+ CRYPTO_cbc128_decrypt(in, out, len, key, ivec,
+ (block128_f) Camellia_decrypt);
}
projects / openssl.git / blobdiff