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-rw-r--r--crypto/libdes/des_enc.c171
1 files changed, 138 insertions, 33 deletions
diff --git a/crypto/libdes/des_enc.c b/crypto/libdes/des_enc.c
index d08fe65013a6..8311e106281c 100644
--- a/crypto/libdes/des_enc.c
+++ b/crypto/libdes/des_enc.c
@@ -1,9 +1,9 @@
/* crypto/des/des_enc.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
- * by Eric Young (eay@mincom.oz.au).
+ * 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
@@ -11,7 +11,7 @@
* 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@mincom.oz.au).
+ * 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.
@@ -31,12 +31,12 @@
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
- * Eric Young (eay@mincom.oz.au)"
+ * 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
* the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
+ * "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
@@ -58,14 +58,11 @@
#include "des_locl.h"
-void des_encrypt(data, ks, encrypt)
-DES_LONG *data;
-des_key_schedule ks;
-int encrypt;
+void des_encrypt(DES_LONG *data, des_key_schedule ks, int enc)
{
register DES_LONG l,r,t,u;
#ifdef DES_PTR
- register unsigned char *des_SP=(unsigned char *)des_SPtrans;
+ register const unsigned char *des_SP=(const unsigned char *)des_SPtrans;
#endif
#ifndef DES_UNROLL
register int i;
@@ -87,10 +84,10 @@ int encrypt;
r=ROTATE(r,29)&0xffffffffL;
l=ROTATE(l,29)&0xffffffffL;
- s=(DES_LONG *)ks;
+ s=ks->ks.deslong;
/* I don't know if it is worth the effort of loop unrolling the
* inner loop */
- if (encrypt)
+ if (enc)
{
#ifdef DES_UNROLL
D_ENCRYPT(l,r, 0); /* 1 */
@@ -159,14 +156,11 @@ int encrypt;
l=r=t=u=0;
}
-void des_encrypt2(data, ks, encrypt)
-DES_LONG *data;
-des_key_schedule ks;
-int encrypt;
+void des_encrypt2(DES_LONG *data, des_key_schedule ks, int enc)
{
register DES_LONG l,r,t,u;
#ifdef DES_PTR
- register unsigned char *des_SP=(unsigned char *)des_SPtrans;
+ register const unsigned char *des_SP=(const unsigned char *)des_SPtrans;
#endif
#ifndef DES_UNROLL
register int i;
@@ -183,13 +177,13 @@ int encrypt;
* Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
* for pointing this out. */
/* clear the top bits on machines with 8byte longs */
- r=ROTATE(r,29)&0xffffffff;
- l=ROTATE(l,29)&0xffffffff;
+ r=ROTATE(r,29)&0xffffffffL;
+ l=ROTATE(l,29)&0xffffffffL;
- s=(DES_LONG *)ks;
+ s=ks->ks.deslong;
/* I don't know if it is worth the effort of loop unrolling the
* inner loop */
- if (encrypt)
+ if (enc)
{
#ifdef DES_UNROLL
D_ENCRYPT(l,r, 0); /* 1 */
@@ -248,16 +242,13 @@ int encrypt;
#endif
}
/* rotate and clear the top bits on machines with 8byte longs */
- data[0]=ROTATE(l,3)&0xffffffff;
- data[1]=ROTATE(r,3)&0xffffffff;
+ data[0]=ROTATE(l,3)&0xffffffffL;
+ data[1]=ROTATE(r,3)&0xffffffffL;
l=r=t=u=0;
}
-void des_encrypt3(data,ks1,ks2,ks3)
-DES_LONG *data;
-des_key_schedule ks1;
-des_key_schedule ks2;
-des_key_schedule ks3;
+void des_encrypt3(DES_LONG *data, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3)
{
register DES_LONG l,r;
@@ -276,11 +267,8 @@ des_key_schedule ks3;
data[1]=r;
}
-void des_decrypt3(data,ks1,ks2,ks3)
-DES_LONG *data;
-des_key_schedule ks1;
-des_key_schedule ks2;
-des_key_schedule ks3;
+void des_decrypt3(DES_LONG *data, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3)
{
register DES_LONG l,r;
@@ -299,3 +287,120 @@ des_key_schedule ks3;
data[1]=r;
}
+#ifndef DES_DEFAULT_OPTIONS
+
+#undef CBC_ENC_C__DONT_UPDATE_IV
+#include "ncbc_enc.c" /* des_ncbc_encrypt */
+
+void des_ede3_cbc_encrypt(const unsigned char *input, unsigned char *output,
+ long length, des_key_schedule ks1, des_key_schedule ks2,
+ des_key_schedule ks3, des_cblock *ivec, int enc)
+ {
+ register DES_LONG tin0,tin1;
+ register DES_LONG tout0,tout1,xor0,xor1;
+ register const unsigned char *in;
+ unsigned char *out;
+ register long l=length;
+ DES_LONG tin[2];
+ unsigned char *iv;
+
+ in=input;
+ out=output;
+ 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;
+ tin1^=tout1;
+
+ tin[0]=tin0;
+ tin[1]=tin1;
+ des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
+ tout0=tin[0];
+ tout1=tin[1];
+
+ l2c(tout0,out);
+ l2c(tout1,out);
+ }
+ if (l != -8)
+ {
+ c2ln(in,tin0,tin1,l+8);
+ tin0^=tout0;
+ tin1^=tout1;
+
+ tin[0]=tin0;
+ tin[1]=tin1;
+ des_encrypt3((DES_LONG *)tin,ks1,ks2,ks3);
+ tout0=tin[0];
+ tout1=tin[1];
+
+ l2c(tout0,out);
+ l2c(tout1,out);
+ }
+ iv = &(*ivec)[0];
+ l2c(tout0,iv);
+ l2c(tout1,iv);
+ }
+ else
+ {
+ register DES_LONG t0,t1;
+
+ c2l(iv,xor0);
+ c2l(iv,xor1);
+ for (l-=8; l>=0; l-=8)
+ {
+ c2l(in,tin0);
+ c2l(in,tin1);
+
+ t0=tin0;
+ t1=tin1;
+
+ tin[0]=tin0;
+ tin[1]=tin1;
+ des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
+ tout0=tin[0];
+ tout1=tin[1];
+
+ tout0^=xor0;
+ tout1^=xor1;
+ l2c(tout0,out);
+ l2c(tout1,out);
+ xor0=t0;
+ xor1=t1;
+ }
+ if (l != -8)
+ {
+ c2l(in,tin0);
+ c2l(in,tin1);
+
+ t0=tin0;
+ t1=tin1;
+
+ tin[0]=tin0;
+ tin[1]=tin1;
+ des_decrypt3((DES_LONG *)tin,ks1,ks2,ks3);
+ tout0=tin[0];
+ tout1=tin[1];
+
+ tout0^=xor0;
+ tout1^=xor1;
+ l2cn(tout0,tout1,out,l+8);
+ xor0=t0;
+ xor1=t1;
+ }
+
+ iv = &(*ivec)[0];
+ l2c(xor0,iv);
+ l2c(xor1,iv);
+ }
+ tin0=tin1=tout0=tout1=xor0=xor1=0;
+ tin[0]=tin[1]=0;
+ }
+
+#endif /* DES_DEFAULT_OPTIONS */
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