X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Fdes%2Fpcbc_enc.c;h=91a6caf0bea163182d81d4d932524b161ac54e74;hb=45502bfe19fb03c9f343b03fa6434ee0bece8428;hp=850717cc5718fc8266b6e13b449f955bdfa34775;hpb=4e31df2cd73dbb659fd8a6eca6270fac661c072d;p=openssl.git

diff --git a/crypto/des/pcbc_enc.c b/crypto/des/pcbc_enc.c
index 850717cc57..91a6caf0be 100644
--- a/crypto/des/pcbc_enc.c
+++ b/crypto/des/pcbc_enc.c
@@ -1,25 +1,24 @@
-/* crypto/des/pcbc_enc.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * 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 +33,10 @@
  *     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 +48,7 @@
  * 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
@@ -58,69 +57,58 @@
 
 #include "des_locl.h"
 
-void des_pcbc_encrypt(input, output, length, schedule, ivec, enc)
-const unsigned char *input;
-unsigned char *output;
-long length;
-des_key_schedule schedule;
-des_cblock ivec;
-int enc;
-	{
-	register DES_LONG sin0,sin1,xor0,xor1,tout0,tout1;
-	DES_LONG tin[2];
-	unsigned char *in,*out,*iv;
+void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
+                      long length, DES_key_schedule *schedule,
+                      DES_cblock *ivec, int enc)
+{
+    register DES_LONG sin0, sin1, xor0, xor1, tout0, tout1;
+    DES_LONG tin[2];
+    const unsigned char *in;
+    unsigned char *out, *iv;
 
-	in=(unsigned char *)input;
-	out=(unsigned char *)output;
-	iv=(unsigned char *)ivec;
+    in = input;
+    out = output;
+    iv = &(*ivec)[0];
 
-	if (enc)
-		{
-		c2l(iv,xor0);
-		c2l(iv,xor1);
-		for (; length>0; length-=8)
-			{
-			if (length >= 8)
-				{
-				c2l(in,sin0);
-				c2l(in,sin1);
-				}
-			else
-				c2ln(in,sin0,sin1,length);
-			tin[0]=sin0^xor0;
-			tin[1]=sin1^xor1;
-			des_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
-			tout0=tin[0];
-			tout1=tin[1];
-			xor0=sin0^tout0;
-			xor1=sin1^tout1;
-			l2c(tout0,out);
-			l2c(tout1,out);
-			}
-		}
-	else
-		{
-		c2l(iv,xor0); c2l(iv,xor1);
-		for (; length>0; length-=8)
-			{
-			c2l(in,sin0);
-			c2l(in,sin1);
-			tin[0]=sin0;
-			tin[1]=sin1;
-			des_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
-			tout0=tin[0]^xor0;
-			tout1=tin[1]^xor1;
-			if (length >= 8)
-				{
-				l2c(tout0,out);
-				l2c(tout1,out);
-				}
-			else
-				l2cn(tout0,tout1,out,length);
-			xor0=tout0^sin0;
-			xor1=tout1^sin1;
-			}
-		}
-	tin[0]=tin[1]=0;
-	sin0=sin1=xor0=xor1=tout0=tout1=0;
-	}
+    if (enc) {
+        c2l(iv, xor0);
+        c2l(iv, xor1);
+        for (; length > 0; length -= 8) {
+            if (length >= 8) {
+                c2l(in, sin0);
+                c2l(in, sin1);
+            } else
+                c2ln(in, sin0, sin1, length);
+            tin[0] = sin0 ^ xor0;
+            tin[1] = sin1 ^ xor1;
+            DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
+            tout0 = tin[0];
+            tout1 = tin[1];
+            xor0 = sin0 ^ tout0;
+            xor1 = sin1 ^ tout1;
+            l2c(tout0, out);
+            l2c(tout1, out);
+        }
+    } else {
+        c2l(iv, xor0);
+        c2l(iv, xor1);
+        for (; length > 0; length -= 8) {
+            c2l(in, sin0);
+            c2l(in, sin1);
+            tin[0] = sin0;
+            tin[1] = sin1;
+            DES_encrypt1((DES_LONG *)tin, schedule, DES_DECRYPT);
+            tout0 = tin[0] ^ xor0;
+            tout1 = tin[1] ^ xor1;
+            if (length >= 8) {
+                l2c(tout0, out);
+                l2c(tout1, out);
+            } else
+                l2cn(tout0, tout1, out, length);
+            xor0 = tout0 ^ sin0;
+            xor1 = tout1 ^ sin1;
+        }
+    }
+    tin[0] = tin[1] = 0;
+    sin0 = sin1 = xor0 = xor1 = tout0 = tout1 = 0;
+}