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-rw-r--r--crypto/des/des_enc.c611
1 files changed, 300 insertions, 311 deletions
diff --git a/crypto/des/des_enc.c b/crypto/des/des_enc.c
index 828feba208af..c0b062da3d89 100644
--- a/crypto/des/des_enc.c
+++ b/crypto/des/des_enc.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
@@ -60,341 +60,330 @@
#include "spr.h"
void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
- {
- register DES_LONG l,r,t,u;
+{
+ register DES_LONG l, r, t, u;
#ifdef DES_PTR
- register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
+ register const unsigned char *des_SP = (const unsigned char *)DES_SPtrans;
#endif
#ifndef DES_UNROLL
- register int i;
+ register int i;
#endif
- register DES_LONG *s;
-
- r=data[0];
- l=data[1];
-
- IP(r,l);
- /* Things have been modified so that the initial rotate is
- * done outside the loop. This required the
- * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
- * One perl script later and things have a 5% speed up on a sparc2.
- * Thanks to Richard Outerbridge <71755.204@CompuServe.COM>
- * for pointing this out. */
- /* clear the top bits on machines with 8byte longs */
- /* shift left by 2 */
- r=ROTATE(r,29)&0xffffffffL;
- l=ROTATE(l,29)&0xffffffffL;
-
- s=ks->ks->deslong;
- /* I don't know if it is worth the effort of loop unrolling the
- * inner loop */
- if (enc)
- {
+ register DES_LONG *s;
+
+ r = data[0];
+ l = data[1];
+
+ IP(r, l);
+ /*
+ * Things have been modified so that the initial rotate is done outside
+ * the loop. This required the DES_SPtrans values in sp.h to be rotated
+ * 1 bit to the right. One perl script later and things have a 5% speed
+ * up on a sparc2. Thanks to Richard Outerbridge
+ * <71755.204@CompuServe.COM> for pointing this out.
+ */
+ /* clear the top bits on machines with 8byte longs */
+ /* shift left by 2 */
+ r = ROTATE(r, 29) & 0xffffffffL;
+ l = ROTATE(l, 29) & 0xffffffffL;
+
+ s = ks->ks->deslong;
+ /*
+ * I don't know if it is worth the effort of loop unrolling the inner
+ * loop
+ */
+ if (enc) {
#ifdef DES_UNROLL
- D_ENCRYPT(l,r, 0); /* 1 */
- D_ENCRYPT(r,l, 2); /* 2 */
- D_ENCRYPT(l,r, 4); /* 3 */
- D_ENCRYPT(r,l, 6); /* 4 */
- D_ENCRYPT(l,r, 8); /* 5 */
- D_ENCRYPT(r,l,10); /* 6 */
- D_ENCRYPT(l,r,12); /* 7 */
- D_ENCRYPT(r,l,14); /* 8 */
- D_ENCRYPT(l,r,16); /* 9 */
- D_ENCRYPT(r,l,18); /* 10 */
- D_ENCRYPT(l,r,20); /* 11 */
- D_ENCRYPT(r,l,22); /* 12 */
- D_ENCRYPT(l,r,24); /* 13 */
- D_ENCRYPT(r,l,26); /* 14 */
- D_ENCRYPT(l,r,28); /* 15 */
- D_ENCRYPT(r,l,30); /* 16 */
+ D_ENCRYPT(l, r, 0); /* 1 */
+ D_ENCRYPT(r, l, 2); /* 2 */
+ D_ENCRYPT(l, r, 4); /* 3 */
+ D_ENCRYPT(r, l, 6); /* 4 */
+ D_ENCRYPT(l, r, 8); /* 5 */
+ D_ENCRYPT(r, l, 10); /* 6 */
+ D_ENCRYPT(l, r, 12); /* 7 */
+ D_ENCRYPT(r, l, 14); /* 8 */
+ D_ENCRYPT(l, r, 16); /* 9 */
+ D_ENCRYPT(r, l, 18); /* 10 */
+ D_ENCRYPT(l, r, 20); /* 11 */
+ D_ENCRYPT(r, l, 22); /* 12 */
+ D_ENCRYPT(l, r, 24); /* 13 */
+ D_ENCRYPT(r, l, 26); /* 14 */
+ D_ENCRYPT(l, r, 28); /* 15 */
+ D_ENCRYPT(r, l, 30); /* 16 */
#else
- for (i=0; i<32; i+=4)
- {
- D_ENCRYPT(l,r,i+0); /* 1 */
- D_ENCRYPT(r,l,i+2); /* 2 */
- }
+ for (i = 0; i < 32; i += 4) {
+ D_ENCRYPT(l, r, i + 0); /* 1 */
+ D_ENCRYPT(r, l, i + 2); /* 2 */
+ }
#endif
- }
- else
- {
+ } else {
#ifdef DES_UNROLL
- D_ENCRYPT(l,r,30); /* 16 */
- D_ENCRYPT(r,l,28); /* 15 */
- D_ENCRYPT(l,r,26); /* 14 */
- D_ENCRYPT(r,l,24); /* 13 */
- D_ENCRYPT(l,r,22); /* 12 */
- D_ENCRYPT(r,l,20); /* 11 */
- D_ENCRYPT(l,r,18); /* 10 */
- D_ENCRYPT(r,l,16); /* 9 */
- D_ENCRYPT(l,r,14); /* 8 */
- D_ENCRYPT(r,l,12); /* 7 */
- D_ENCRYPT(l,r,10); /* 6 */
- D_ENCRYPT(r,l, 8); /* 5 */
- D_ENCRYPT(l,r, 6); /* 4 */
- D_ENCRYPT(r,l, 4); /* 3 */
- D_ENCRYPT(l,r, 2); /* 2 */
- D_ENCRYPT(r,l, 0); /* 1 */
+ D_ENCRYPT(l, r, 30); /* 16 */
+ D_ENCRYPT(r, l, 28); /* 15 */
+ D_ENCRYPT(l, r, 26); /* 14 */
+ D_ENCRYPT(r, l, 24); /* 13 */
+ D_ENCRYPT(l, r, 22); /* 12 */
+ D_ENCRYPT(r, l, 20); /* 11 */
+ D_ENCRYPT(l, r, 18); /* 10 */
+ D_ENCRYPT(r, l, 16); /* 9 */
+ D_ENCRYPT(l, r, 14); /* 8 */
+ D_ENCRYPT(r, l, 12); /* 7 */
+ D_ENCRYPT(l, r, 10); /* 6 */
+ D_ENCRYPT(r, l, 8); /* 5 */
+ D_ENCRYPT(l, r, 6); /* 4 */
+ D_ENCRYPT(r, l, 4); /* 3 */
+ D_ENCRYPT(l, r, 2); /* 2 */
+ D_ENCRYPT(r, l, 0); /* 1 */
#else
- for (i=30; i>0; i-=4)
- {
- D_ENCRYPT(l,r,i-0); /* 16 */
- D_ENCRYPT(r,l,i-2); /* 15 */
- }
+ for (i = 30; i > 0; i -= 4) {
+ D_ENCRYPT(l, r, i - 0); /* 16 */
+ D_ENCRYPT(r, l, i - 2); /* 15 */
+ }
#endif
- }
+ }
- /* rotate and clear the top bits on machines with 8byte longs */
- l=ROTATE(l,3)&0xffffffffL;
- r=ROTATE(r,3)&0xffffffffL;
+ /* rotate and clear the top bits on machines with 8byte longs */
+ l = ROTATE(l, 3) & 0xffffffffL;
+ r = ROTATE(r, 3) & 0xffffffffL;
- FP(r,l);
- data[0]=l;
- data[1]=r;
- l=r=t=u=0;
- }
+ FP(r, l);
+ data[0] = l;
+ data[1] = r;
+ l = r = t = u = 0;
+}
void DES_encrypt2(DES_LONG *data, DES_key_schedule *ks, int enc)
- {
- register DES_LONG l,r,t,u;
+{
+ register DES_LONG l, r, t, u;
#ifdef DES_PTR
- register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
+ register const unsigned char *des_SP = (const unsigned char *)DES_SPtrans;
#endif
#ifndef DES_UNROLL
- register int i;
+ register int i;
#endif
- register DES_LONG *s;
-
- r=data[0];
- l=data[1];
-
- /* Things have been modified so that the initial rotate is
- * done outside the loop. This required the
- * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
- * One perl script later and things have a 5% speed up on a sparc2.
- * 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)&0xffffffffL;
- l=ROTATE(l,29)&0xffffffffL;
-
- s=ks->ks->deslong;
- /* I don't know if it is worth the effort of loop unrolling the
- * inner loop */
- if (enc)
- {
+ register DES_LONG *s;
+
+ r = data[0];
+ l = data[1];
+
+ /*
+ * Things have been modified so that the initial rotate is done outside
+ * the loop. This required the DES_SPtrans values in sp.h to be rotated
+ * 1 bit to the right. One perl script later and things have a 5% speed
+ * up on a sparc2. 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) & 0xffffffffL;
+ l = ROTATE(l, 29) & 0xffffffffL;
+
+ s = ks->ks->deslong;
+ /*
+ * I don't know if it is worth the effort of loop unrolling the inner
+ * loop
+ */
+ if (enc) {
#ifdef DES_UNROLL
- D_ENCRYPT(l,r, 0); /* 1 */
- D_ENCRYPT(r,l, 2); /* 2 */
- D_ENCRYPT(l,r, 4); /* 3 */
- D_ENCRYPT(r,l, 6); /* 4 */
- D_ENCRYPT(l,r, 8); /* 5 */
- D_ENCRYPT(r,l,10); /* 6 */
- D_ENCRYPT(l,r,12); /* 7 */
- D_ENCRYPT(r,l,14); /* 8 */
- D_ENCRYPT(l,r,16); /* 9 */
- D_ENCRYPT(r,l,18); /* 10 */
- D_ENCRYPT(l,r,20); /* 11 */
- D_ENCRYPT(r,l,22); /* 12 */
- D_ENCRYPT(l,r,24); /* 13 */
- D_ENCRYPT(r,l,26); /* 14 */
- D_ENCRYPT(l,r,28); /* 15 */
- D_ENCRYPT(r,l,30); /* 16 */
+ D_ENCRYPT(l, r, 0); /* 1 */
+ D_ENCRYPT(r, l, 2); /* 2 */
+ D_ENCRYPT(l, r, 4); /* 3 */
+ D_ENCRYPT(r, l, 6); /* 4 */
+ D_ENCRYPT(l, r, 8); /* 5 */
+ D_ENCRYPT(r, l, 10); /* 6 */
+ D_ENCRYPT(l, r, 12); /* 7 */
+ D_ENCRYPT(r, l, 14); /* 8 */
+ D_ENCRYPT(l, r, 16); /* 9 */
+ D_ENCRYPT(r, l, 18); /* 10 */
+ D_ENCRYPT(l, r, 20); /* 11 */
+ D_ENCRYPT(r, l, 22); /* 12 */
+ D_ENCRYPT(l, r, 24); /* 13 */
+ D_ENCRYPT(r, l, 26); /* 14 */
+ D_ENCRYPT(l, r, 28); /* 15 */
+ D_ENCRYPT(r, l, 30); /* 16 */
#else
- for (i=0; i<32; i+=4)
- {
- D_ENCRYPT(l,r,i+0); /* 1 */
- D_ENCRYPT(r,l,i+2); /* 2 */
- }
+ for (i = 0; i < 32; i += 4) {
+ D_ENCRYPT(l, r, i + 0); /* 1 */
+ D_ENCRYPT(r, l, i + 2); /* 2 */
+ }
#endif
- }
- else
- {
+ } else {
#ifdef DES_UNROLL
- D_ENCRYPT(l,r,30); /* 16 */
- D_ENCRYPT(r,l,28); /* 15 */
- D_ENCRYPT(l,r,26); /* 14 */
- D_ENCRYPT(r,l,24); /* 13 */
- D_ENCRYPT(l,r,22); /* 12 */
- D_ENCRYPT(r,l,20); /* 11 */
- D_ENCRYPT(l,r,18); /* 10 */
- D_ENCRYPT(r,l,16); /* 9 */
- D_ENCRYPT(l,r,14); /* 8 */
- D_ENCRYPT(r,l,12); /* 7 */
- D_ENCRYPT(l,r,10); /* 6 */
- D_ENCRYPT(r,l, 8); /* 5 */
- D_ENCRYPT(l,r, 6); /* 4 */
- D_ENCRYPT(r,l, 4); /* 3 */
- D_ENCRYPT(l,r, 2); /* 2 */
- D_ENCRYPT(r,l, 0); /* 1 */
+ D_ENCRYPT(l, r, 30); /* 16 */
+ D_ENCRYPT(r, l, 28); /* 15 */
+ D_ENCRYPT(l, r, 26); /* 14 */
+ D_ENCRYPT(r, l, 24); /* 13 */
+ D_ENCRYPT(l, r, 22); /* 12 */
+ D_ENCRYPT(r, l, 20); /* 11 */
+ D_ENCRYPT(l, r, 18); /* 10 */
+ D_ENCRYPT(r, l, 16); /* 9 */
+ D_ENCRYPT(l, r, 14); /* 8 */
+ D_ENCRYPT(r, l, 12); /* 7 */
+ D_ENCRYPT(l, r, 10); /* 6 */
+ D_ENCRYPT(r, l, 8); /* 5 */
+ D_ENCRYPT(l, r, 6); /* 4 */
+ D_ENCRYPT(r, l, 4); /* 3 */
+ D_ENCRYPT(l, r, 2); /* 2 */
+ D_ENCRYPT(r, l, 0); /* 1 */
#else
- for (i=30; i>0; i-=4)
- {
- D_ENCRYPT(l,r,i-0); /* 16 */
- D_ENCRYPT(r,l,i-2); /* 15 */
- }
+ for (i = 30; i > 0; i -= 4) {
+ D_ENCRYPT(l, r, i - 0); /* 16 */
+ D_ENCRYPT(r, l, i - 2); /* 15 */
+ }
#endif
- }
- /* rotate and clear the top bits on machines with 8byte longs */
- data[0]=ROTATE(l,3)&0xffffffffL;
- data[1]=ROTATE(r,3)&0xffffffffL;
- l=r=t=u=0;
- }
+ }
+ /* rotate and clear the top bits on machines with 8byte longs */
+ data[0] = ROTATE(l, 3) & 0xffffffffL;
+ data[1] = ROTATE(r, 3) & 0xffffffffL;
+ l = r = t = u = 0;
+}
void DES_encrypt3(DES_LONG *data, DES_key_schedule *ks1,
- DES_key_schedule *ks2, DES_key_schedule *ks3)
- {
- register DES_LONG l,r;
-
- l=data[0];
- r=data[1];
- IP(l,r);
- data[0]=l;
- data[1]=r;
- DES_encrypt2((DES_LONG *)data,ks1,DES_ENCRYPT);
- DES_encrypt2((DES_LONG *)data,ks2,DES_DECRYPT);
- DES_encrypt2((DES_LONG *)data,ks3,DES_ENCRYPT);
- l=data[0];
- r=data[1];
- FP(r,l);
- data[0]=l;
- data[1]=r;
- }
+ DES_key_schedule *ks2, DES_key_schedule *ks3)
+{
+ register DES_LONG l, r;
+
+ l = data[0];
+ r = data[1];
+ IP(l, r);
+ data[0] = l;
+ data[1] = r;
+ DES_encrypt2((DES_LONG *)data, ks1, DES_ENCRYPT);
+ DES_encrypt2((DES_LONG *)data, ks2, DES_DECRYPT);
+ DES_encrypt2((DES_LONG *)data, ks3, DES_ENCRYPT);
+ l = data[0];
+ r = data[1];
+ FP(r, l);
+ data[0] = l;
+ data[1] = r;
+}
void DES_decrypt3(DES_LONG *data, DES_key_schedule *ks1,
- DES_key_schedule *ks2, DES_key_schedule *ks3)
- {
- register DES_LONG l,r;
-
- l=data[0];
- r=data[1];
- IP(l,r);
- data[0]=l;
- data[1]=r;
- DES_encrypt2((DES_LONG *)data,ks3,DES_DECRYPT);
- DES_encrypt2((DES_LONG *)data,ks2,DES_ENCRYPT);
- DES_encrypt2((DES_LONG *)data,ks1,DES_DECRYPT);
- l=data[0];
- r=data[1];
- FP(r,l);
- data[0]=l;
- data[1]=r;
- }
+ DES_key_schedule *ks2, DES_key_schedule *ks3)
+{
+ register DES_LONG l, r;
+
+ l = data[0];
+ r = data[1];
+ IP(l, r);
+ data[0] = l;
+ data[1] = r;
+ DES_encrypt2((DES_LONG *)data, ks3, DES_DECRYPT);
+ DES_encrypt2((DES_LONG *)data, ks2, DES_ENCRYPT);
+ DES_encrypt2((DES_LONG *)data, ks1, DES_DECRYPT);
+ l = data[0];
+ r = data[1];
+ FP(r, l);
+ data[0] = l;
+ data[1] = r;
+}
#ifndef DES_DEFAULT_OPTIONS
-#undef CBC_ENC_C__DONT_UPDATE_IV
-#include "ncbc_enc.c" /* DES_ncbc_encrypt */
+# 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 */
+ 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 */