-/* 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 <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[UNITSIZE];
- const union { long one; char little; } camellia_endian = {1};
-
+ size_t len, const CAMELLIA_KEY *key,
+ unsigned char *ivec, const int enc)
+{
- assert(in && out && key && ivec);
- assert((CAMELLIA_ENCRYPT == enc)||(CAMELLIA_DECRYPT == enc));
-
- if(((size_t)in) % ALIGN == 0
- && ((size_t)out) % ALIGN == 0
- && ((size_t)ivec) % ALIGN == 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