generic-library/openssl
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Import of old SSLeay release: SSLeay 0.9.0b

Browse Source
This commit is contained in:
Ralf S. Engelschall
1998-12-21 10:56:39 +00:00
parent d02b48c63a
commit 58964a4922
826 changed files with 71709 additions and 8819 deletions
Download Patch File Download Diff File Expand all files Collapse all files

211
crypto/des/des_enc.c
View File

@@ -1,5 +1,5 @@
/* crypto/des/des_enc.c */
/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
@@ -183,8 +183,8 @@ int enc;
* 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;
/* I don't know if it is worth the effort of loop unrolling the
@@ -248,8 +248,8 @@ int enc;
#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;
}
@@ -299,3 +299,204 @@ des_key_schedule ks3;
data[1]=r;
}
#ifndef DES_DEFAULT_OPTIONS
void des_ncbc_encrypt(input, output, length, schedule, ivec, enc)
des_cblock (*input);
des_cblock (*output);
long length;
des_key_schedule schedule;
des_cblock (*ivec);
int enc;
{
register DES_LONG tin0,tin1;
register DES_LONG tout0,tout1,xor0,xor1;
register unsigned char *in,*out;
register long l=length;
DES_LONG tin[2];
unsigned char *iv;
in=(unsigned char *)input;
out=(unsigned char *)output;
iv=(unsigned char *)ivec;
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_encrypt((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_encrypt((DES_LONG *)tin,schedule,DES_ENCRYPT);
tout0=tin[0]; l2c(tout0,out);
tout1=tin[1]; l2c(tout1,out);
}
iv=(unsigned char *)ivec;
l2c(tout0,iv);
l2c(tout1,iv);
}
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_encrypt((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_encrypt((DES_LONG *)tin,schedule,DES_DECRYPT);
tout0=tin[0]^xor0;
tout1=tin[1]^xor1;
l2cn(tout0,tout1,out,l+8);
xor0=tin0;
xor1=tin1;
}
iv=(unsigned char *)ivec;
l2c(xor0,iv);
l2c(xor1,iv);
}
tin0=tin1=tout0=tout1=xor0=xor1=0;
tin[0]=tin[1]=0;
}
void des_ede3_cbc_encrypt(input, output, length, ks1, ks2, ks3, ivec, enc)
des_cblock (*input);
des_cblock (*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 unsigned char *in,*out;
register long l=length;
DES_LONG tin[2];
unsigned char *iv;
in=(unsigned char *)input;
out=(unsigned char *)output;
iv=(unsigned char *)ivec;
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=(unsigned char *)ivec;
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=(unsigned char *)ivec;
l2c(xor0,iv);
l2c(xor1,iv);
}
tin0=tin1=tout0=tout1=xor0=xor1=0;
tin[0]=tin[1]=0;
}
#endif /* DES_DEFAULT_OPTIONS */