* [including the GNU Public Licence.]
*/
-#include "des_locl.h"
-
-/* Note that this is inconsistent with other DES functions, in that it doesn't
- update ivec */
-void des_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
- des_key_schedule schedule, des_cblock *ivec, int enc)
- {
- register DES_LONG tin0,tin1;
- register DES_LONG tout0,tout1,xor0,xor1;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *iv;
-
- iv = &(*ivec)[0];
-
- if (enc)
- {
- c2l(iv,tout0);
- c2l(iv,tout1);
- for (l-=8; l>=0; l-=8)
- {
- c2l(in,tin0);
- c2l(in,tin1);
- tin0^=tout0; tin[0]=tin0;
- tin1^=tout1; tin[1]=tin1;
- des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
- tout0=tin[0]; l2c(tout0,out);
- tout1=tin[1]; l2c(tout1,out);
- }
- if (l != -8)
- {
- c2ln(in,tin0,tin1,l+8);
- tin0^=tout0; tin[0]=tin0;
- tin1^=tout1; tin[1]=tin1;
- des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
- tout0=tin[0]; l2c(tout0,out);
- tout1=tin[1]; l2c(tout1,out);
- }
- }
- else
- {
- c2l(iv,xor0);
- c2l(iv,xor1);
- for (l-=8; l>=0; l-=8)
- {
- c2l(in,tin0); tin[0]=tin0;
- c2l(in,tin1); tin[1]=tin1;
- des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0;
- tout1=tin[1]^xor1;
- l2c(tout0,out);
- l2c(tout1,out);
- xor0=tin0;
- xor1=tin1;
- }
- if (l != -8)
- {
- c2l(in,tin0); tin[0]=tin0;
- c2l(in,tin1); tin[1]=tin1;
- des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
- tout0=tin[0]^xor0;
- tout1=tin[1]^xor1;
- l2cn(tout0,tout1,out,l+8);
- /* xor0=tin0;
- xor1=tin1; */
- }
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- tin[0]=tin[1]=0;
- }
+#define CBC_ENC_C__DONT_UPDATE_IV
+#include "ncbc_enc.c" /* des_cbc_encrypt */