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-rw-r--r--crypto/camellia/cmll_cbc.c227
1 files changed, 9 insertions, 218 deletions
diff --git a/crypto/camellia/cmll_cbc.c b/crypto/camellia/cmll_cbc.c
index 4141a7b..4c8d455 100644
--- a/crypto/camellia/cmll_cbc.c
+++ b/crypto/camellia/cmll_cbc.c
@@ -49,225 +49,16 @@
*
*/
-#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;
- const unsigned char *iv = ivec;
- union { u32 t32[CAMELLIA_BLOCK_SIZE/sizeof(u32)];
- u8 t8 [CAMELLIA_BLOCK_SIZE]; } tmp;
- 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.t8, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->dec(key->rd_key, tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- for(n=0; n < len; ++n)
- out[n] = tmp.t8[n] ^ iv[n];
- iv = in;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else /* in == out */
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp.t8, 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.t8, CAMELLIA_BLOCK_SIZE);
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp.t8, 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.t8[n];
- memcpy(ivec, tmp.t8, CAMELLIA_BLOCK_SIZE);
- }
- }
- }
- else /* no aligned */
- {
- if (CAMELLIA_ENCRYPT == enc)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- tmp.t8[n] = in[n] ^ iv[n];
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->enc(key->rd_key, tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- memcpy(out, tmp.t8, 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)
- tmp.t8[n] = in[n] ^ iv[n];
- for(n=len; n < CAMELLIA_BLOCK_SIZE; ++n)
- tmp.t8[n] = iv[n];
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->enc(key->rd_key, tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- memcpy(out, tmp.t8, CAMELLIA_BLOCK_SIZE);
- iv = out;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else if (in != out)
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp.t8,in,CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->dec(key->rd_key,tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- out[n] = tmp.t8[n] ^ iv[n];
- iv = in;
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->dec(key->rd_key, tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- for(n=0; n < len; ++n)
- out[n] = tmp.t8[n] ^ iv[n];
- iv = in;
- }
- memcpy(ivec,iv,CAMELLIA_BLOCK_SIZE);
- }
- else
- {
- while (len >= CAMELLIA_BLOCK_SIZE)
- {
- memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->dec(key->rd_key, tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- for(n=0; n < CAMELLIA_BLOCK_SIZE; ++n)
- tmp.t8[n] ^= ivec[n];
- memcpy(ivec, in, CAMELLIA_BLOCK_SIZE);
- memcpy(out, tmp.t8, CAMELLIA_BLOCK_SIZE);
- len -= CAMELLIA_BLOCK_SIZE;
- in += CAMELLIA_BLOCK_SIZE;
- out += CAMELLIA_BLOCK_SIZE;
- }
- if (len)
- {
- memcpy(tmp.t8, in, CAMELLIA_BLOCK_SIZE);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- key->dec(key->rd_key,tmp.t32);
- if (camellia_endian.little)
- SWAP4WORD(tmp.t32);
- for(n=0; n < len; ++n)
- tmp.t8[n] ^= ivec[n];
- memcpy(ivec, in, CAMELLIA_BLOCK_SIZE);
- memcpy(out,tmp.t8,len);
- }
- }
- }
-}
+ 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);
+ }
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