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-rw-r--r--crypto/des/cbc_cksm.c97
1 files changed, 47 insertions, 50 deletions
diff --git a/crypto/des/cbc_cksm.c b/crypto/des/cbc_cksm.c
index 09a7ba56aada..f89b5b98e42a 100644
--- a/crypto/des/cbc_cksm.c
+++ b/crypto/des/cbc_cksm.c
@@ -5,21 +5,21 @@
* 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:
@@ -34,10 +34,10 @@
* 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
@@ -49,7 +49,7 @@
* 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
@@ -59,48 +59,45 @@
#include "des_locl.h"
DES_LONG DES_cbc_cksum(const unsigned char *in, DES_cblock *output,
- long length, DES_key_schedule *schedule,
- const_DES_cblock *ivec)
- {
- register DES_LONG tout0,tout1,tin0,tin1;
- register long l=length;
- DES_LONG tin[2];
- unsigned char *out = &(*output)[0];
- const unsigned char *iv = &(*ivec)[0];
+ long length, DES_key_schedule *schedule,
+ const_DES_cblock *ivec)
+{
+ register DES_LONG tout0, tout1, tin0, tin1;
+ register long l = length;
+ DES_LONG tin[2];
+ unsigned char *out = &(*output)[0];
+ const unsigned char *iv = &(*ivec)[0];
+
+ c2l(iv, tout0);
+ c2l(iv, tout1);
+ for (; l > 0; l -= 8) {
+ if (l >= 8) {
+ c2l(in, tin0);
+ c2l(in, tin1);
+ } else
+ c2ln(in, tin0, tin1, l);
- c2l(iv,tout0);
- c2l(iv,tout1);
- for (; l>0; l-=8)
- {
- if (l >= 8)
- {
- c2l(in,tin0);
- c2l(in,tin1);
- }
- else
- c2ln(in,tin0,tin1,l);
-
- tin0^=tout0; tin[0]=tin0;
- tin1^=tout1; tin[1]=tin1;
- DES_encrypt1((DES_LONG *)tin,schedule,DES_ENCRYPT);
- /* fix 15/10/91 eay - thanks to keithr@sco.COM */
- tout0=tin[0];
- tout1=tin[1];
- }
- if (out != NULL)
- {
- l2c(tout0,out);
- l2c(tout1,out);
- }
- tout0=tin0=tin1=tin[0]=tin[1]=0;
- /*
- Transform the data in tout1 so that it will
- match the return value that the MIT Kerberos
- mit_des_cbc_cksum API returns.
- */
- tout1 = ((tout1 >> 24L) & 0x000000FF)
- | ((tout1 >> 8L) & 0x0000FF00)
- | ((tout1 << 8L) & 0x00FF0000)
- | ((tout1 << 24L) & 0xFF000000);
- return(tout1);
- }
+ tin0 ^= tout0;
+ tin[0] = tin0;
+ tin1 ^= tout1;
+ tin[1] = tin1;
+ DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
+ /* fix 15/10/91 eay - thanks to keithr@sco.COM */
+ tout0 = tin[0];
+ tout1 = tin[1];
+ }
+ if (out != NULL) {
+ l2c(tout0, out);
+ l2c(tout1, out);
+ }
+ tout0 = tin0 = tin1 = tin[0] = tin[1] = 0;
+ /*
+ * Transform the data in tout1 so that it will match the return value
+ * that the MIT Kerberos mit_des_cbc_cksum API returns.
+ */
+ tout1 = ((tout1 >> 24L) & 0x000000FF)
+ | ((tout1 >> 8L) & 0x0000FF00)
+ | ((tout1 << 8L) & 0x00FF0000)
+ | ((tout1 << 24L) & 0xFF000000);
+ return (tout1);
+}