-/* crypto/des/ncbc_enc.c */
-/*
+/*-
* #included by:
* cbc_enc.c (DES_cbc_encrypt)
* des_enc.c (DES_ncbc_encrypt)
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
- *
+ *
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
+ *
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
+ * 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
+ *
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- *
+ *
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
#ifdef CBC_ENC_C__DONT_UPDATE_IV
void DES_cbc_encrypt(const unsigned char *in, unsigned char *out, long length,
- DES_key_schedule *_schedule, DES_cblock *ivec, int enc)
+ DES_key_schedule *_schedule, DES_cblock *ivec, int enc)
#else
-void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out, long length,
- DES_key_schedule *_schedule, DES_cblock *ivec, int enc)
+void DES_ncbc_encrypt(const unsigned char *in, unsigned char *out,
+ long length, DES_key_schedule *_schedule,
+ DES_cblock *ivec, int enc)
#endif
- {
- register DES_LONG tin0,tin1;
- register DES_LONG tout0,tout1,xor0,xor1;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *iv;
+{
+ 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];
+ 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_encrypt1((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_encrypt1((DES_LONG *)tin,_schedule,DES_ENCRYPT);
- tout0=tin[0]; l2c(tout0,out);
- tout1=tin[1]; l2c(tout1,out);
- }
+ 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_encrypt1((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_encrypt1((DES_LONG *)tin, _schedule, DES_ENCRYPT);
+ tout0 = tin[0];
+ l2c(tout0, out);
+ tout1 = tin[1];
+ l2c(tout1, out);
+ }
#ifndef CBC_ENC_C__DONT_UPDATE_IV
- iv = &(*ivec)[0];
- l2c(tout0,iv);
- l2c(tout1,iv);
+ iv = &(*ivec)[0];
+ l2c(tout0, iv);
+ l2c(tout1, iv);
#endif
- }
- 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_encrypt1((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_encrypt1((DES_LONG *)tin,_schedule,DES_DECRYPT);
- tout0=tin[0]^xor0;
- tout1=tin[1]^xor1;
- l2cn(tout0,tout1,out,l+8);
+ } 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_encrypt1((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_encrypt1((DES_LONG *)tin, _schedule, DES_DECRYPT);
+ tout0 = tin[0] ^ xor0;
+ tout1 = tin[1] ^ xor1;
+ l2cn(tout0, tout1, out, l + 8);
#ifndef CBC_ENC_C__DONT_UPDATE_IV
- xor0=tin0;
- xor1=tin1;
+ xor0 = tin0;
+ xor1 = tin1;
#endif
- }
-#ifndef CBC_ENC_C__DONT_UPDATE_IV
- iv = &(*ivec)[0];
- l2c(xor0,iv);
- l2c(xor1,iv);
+ }
+#ifndef CBC_ENC_C__DONT_UPDATE_IV
+ iv = &(*ivec)[0];
+ l2c(xor0, iv);
+ l2c(xor1, iv);
#endif
- }
- tin0=tin1=tout0=tout1=xor0=xor1=0;
- tin[0]=tin[1]=0;
- }
+ }
+ tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+ tin[0] = tin[1] = 0;
+}
projects / openssl.git / blobdiff