-/* crypto/camellia/camellia_cbc.c -*- mode:C; c-file-style: "eay" -*- */
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
*
*/
-#ifndef CAMELLIA_DEBUG
-# ifndef NDEBUG
-# define NDEBUG
-# endif
-#endif
-#include <assert.h>
-#include <string.h>
-
#include <openssl/camellia.h>
-#include "cmll_locl.h"
-void Camellia_cbc_encrypt(const unsigned char *in, unsigned char *out,
- size_t len, const CAMELLIA_KEY *key,
- unsigned char *ivec, const int enc)
- {
+#include <openssl/modes.h>
- size_t n;
- unsigned char tmp[CAMELLIA_BLOCK_SIZE];
- const unsigned char *iv = ivec;
-
- assert(in && out && key && ivec);
- assert((CAMELLIA_ENCRYPT == enc)||(CAMELLIA_DECRYPT == enc));
+void Camellia_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const CAMELLIA_KEY *key,
+ unsigned char *ivec, const int enc)
+{
- if (CAMELLIA_ENCRYPT == enc)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = in[n] ^ iv[n];
- Camellia_encrypt(out, out, key);
- 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];
- Camellia_encrypt(out, out, key);
- iv = out;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else if (in != out)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- Camellia_decrypt(in, out, key);
- 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)
- {
- Camellia_decrypt(in,tmp,key);
- for(n=0; n < len; ++n)
- out[n] = tmp[n] ^ iv[n];
- iv = in;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp, in, CAMELLIA_BLOCK_SIZE);
- Camellia_decrypt(in, out, key);
- 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);
- Camellia_decrypt(tmp, out, key);
- 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);
+}