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Diffstat (limited to 'openssl/crypto/camellia/cmll_cfb.c')
-rw-r--r--openssl/crypto/camellia/cmll_cfb.c110
1 files changed, 7 insertions, 103 deletions
diff --git a/openssl/crypto/camellia/cmll_cfb.c b/openssl/crypto/camellia/cmll_cfb.c
index af0f9f49a..3d81b51d3 100644
--- a/openssl/crypto/camellia/cmll_cfb.c
+++ b/openssl/crypto/camellia/cmll_cfb.c
@@ -105,17 +105,8 @@
* [including the GNU Public Licence.]
*/
-#ifndef CAMELLIA_DEBUG
-# ifndef NDEBUG
-# define NDEBUG
-# endif
-#endif
-#include <assert.h>
-#include <string.h>
-
#include <openssl/camellia.h>
-#include "cmll_locl.h"
-#include "e_os.h"
+#include <openssl/modes.h>
/* The input and output encrypted as though 128bit cfb mode is being
@@ -124,112 +115,25 @@
*/
void Camellia_cfb128_encrypt(const unsigned char *in, unsigned char *out,
- const unsigned long length, const CAMELLIA_KEY *key,
+ size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
- unsigned int n;
- unsigned long l = length;
- unsigned char c;
-
- assert(in && out && key && ivec && num);
-
- n = *num;
-
- if (enc)
- {
- while (l--)
- {
- if (n == 0)
- {
- Camellia_encrypt(ivec, ivec, key);
- }
- ivec[n] = *(out++) = *(in++) ^ ivec[n];
- n = (n+1) % CAMELLIA_BLOCK_SIZE;
- }
- }
- else
- {
- while (l--)
- {
- if (n == 0)
- {
- Camellia_encrypt(ivec, ivec, key);
- }
- c = *(in);
- *(out++) = *(in++) ^ ivec[n];
- ivec[n] = c;
- n = (n+1) % CAMELLIA_BLOCK_SIZE;
- }
- }
-
- *num=n;
- }
-
-/* This expects a single block of size nbits for both in and out. Note that
- it corrupts any extra bits in the last byte of out */
-void Camellia_cfbr_encrypt_block(const unsigned char *in,unsigned char *out,
- const int nbits,const CAMELLIA_KEY *key,
- unsigned char *ivec,const int enc)
- {
- int n,rem,num;
- unsigned char ovec[CAMELLIA_BLOCK_SIZE*2];
-
- if (nbits<=0 || nbits>128) return;
-
- /* fill in the first half of the new IV with the current IV */
- memcpy(ovec,ivec,CAMELLIA_BLOCK_SIZE);
- /* construct the new IV */
- Camellia_encrypt(ivec,ivec,key);
- num = (nbits+7)/8;
- if (enc) /* encrypt the input */
- for(n=0 ; n < num ; ++n)
- out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n] ^ ivec[n]);
- else /* decrypt the input */
- for(n=0 ; n < num ; ++n)
- out[n] = (ovec[CAMELLIA_BLOCK_SIZE+n] = in[n]) ^ ivec[n];
- /* shift ovec left... */
- rem = nbits%8;
- num = nbits/8;
- if(rem==0)
- memcpy(ivec,ovec+num,CAMELLIA_BLOCK_SIZE);
- else
- for(n=0 ; n < CAMELLIA_BLOCK_SIZE ; ++n)
- ivec[n] = ovec[n+num]<<rem | ovec[n+num+1]>>(8-rem);
-
- /* it is not necessary to cleanse ovec, since the IV is not secret */
+ CRYPTO_cfb128_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
}
/* N.B. This expects the input to be packed, MS bit first */
void Camellia_cfb1_encrypt(const unsigned char *in, unsigned char *out,
- const unsigned long length, const CAMELLIA_KEY *key,
+ size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
- unsigned int n;
- unsigned char c[1],d[1];
-
- assert(in && out && key && ivec && num);
- assert(*num == 0);
-
- memset(out,0,(length+7)/8);
- for(n=0 ; n < length ; ++n)
- {
- c[0]=(in[n/8]&(1 << (7-n%8))) ? 0x80 : 0;
- Camellia_cfbr_encrypt_block(c,d,1,key,ivec,enc);
- out[n/8]=(out[n/8]&~(1 << (7-n%8)))|((d[0]&0x80) >> (n%8));
- }
+ CRYPTO_cfb128_1_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
}
void Camellia_cfb8_encrypt(const unsigned char *in, unsigned char *out,
- const unsigned long length, const CAMELLIA_KEY *key,
+ size_t length, const CAMELLIA_KEY *key,
unsigned char *ivec, int *num, const int enc)
{
- unsigned int n;
-
- assert(in && out && key && ivec && num);
- assert(*num == 0);
-
- for(n=0 ; n < length ; ++n)
- Camellia_cfbr_encrypt_block(&in[n],&out[n],8,key,ivec,enc);
+ CRYPTO_cfb128_8_encrypt(in,out,length,key,ivec,num,enc,(block128_f)Camellia_encrypt);
}