e8636dfd57
Note: you'll need to rinstalkl all your includes before compiling libc the next time you update your sources in order for all this to work. Reviewed by: Mark Murray
154 lines
3.7 KiB
C
154 lines
3.7 KiB
C
/*
|
|
* Sun RPC is a product of Sun Microsystems, Inc. and is provided for
|
|
* unrestricted use provided that this legend is included on all tape
|
|
* media and as a part of the software program in whole or part. Users
|
|
* may copy or modify Sun RPC without charge, but are not authorized
|
|
* to license or distribute it to anyone else except as part of a product or
|
|
* program developed by the user.
|
|
*
|
|
* SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
|
|
* WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
|
|
*
|
|
* Sun RPC is provided with no support and without any obligation on the
|
|
* part of Sun Microsystems, Inc. to assist in its use, correction,
|
|
* modification or enhancement.
|
|
*
|
|
* SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
|
|
* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
|
|
* OR ANY PART THEREOF.
|
|
*
|
|
* In no event will Sun Microsystems, Inc. be liable for any lost revenue
|
|
* or profits or other special, indirect and consequential damages, even if
|
|
* Sun has been advised of the possibility of such damages.
|
|
*
|
|
* Sun Microsystems, Inc.
|
|
* 2550 Garcia Avenue
|
|
* Mountain View, California 94043
|
|
*/
|
|
/*
|
|
* des_crypt.c, DES encryption library routines
|
|
* Copyright (C) 1986, Sun Microsystems, Inc.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <rpc/des_crypt.h>
|
|
#include <rpc/des.h>
|
|
|
|
#ifndef lint
|
|
/* from: static char sccsid[] = "@(#)des_crypt.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI"; */
|
|
static const char rcsid[] = "$Id$";
|
|
#endif
|
|
|
|
static int common_crypt __P(( char *, char *, register unsigned, unsigned, struct desparams * ));
|
|
int (*__des_crypt_LOCAL)() = 0;
|
|
extern _des_crypt_call __P(( char *, int, struct desparams * ));
|
|
/*
|
|
* Copy 8 bytes
|
|
*/
|
|
#define COPY8(src, dst) { \
|
|
register char *a = (char *) dst; \
|
|
register char *b = (char *) src; \
|
|
*a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
|
|
*a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
|
|
}
|
|
|
|
/*
|
|
* Copy multiple of 8 bytes
|
|
*/
|
|
#define DESCOPY(src, dst, len) { \
|
|
register char *a = (char *) dst; \
|
|
register char *b = (char *) src; \
|
|
register int i; \
|
|
for (i = (int) len; i > 0; i -= 8) { \
|
|
*a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
|
|
*a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
|
|
} \
|
|
}
|
|
|
|
/*
|
|
* CBC mode encryption
|
|
*/
|
|
int
|
|
cbc_crypt(key, buf, len, mode, ivec)
|
|
char *key;
|
|
char *buf;
|
|
unsigned len;
|
|
unsigned mode;
|
|
char *ivec;
|
|
{
|
|
int err;
|
|
struct desparams dp;
|
|
|
|
#ifdef BROKEN_DES
|
|
dp.UDES.UDES_buf = buf;
|
|
dp.des_mode = ECB;
|
|
#else
|
|
dp.des_mode = CBC;
|
|
#endif
|
|
COPY8(ivec, dp.des_ivec);
|
|
err = common_crypt(key, buf, len, mode, &dp);
|
|
COPY8(dp.des_ivec, ivec);
|
|
return(err);
|
|
}
|
|
|
|
|
|
/*
|
|
* ECB mode encryption
|
|
*/
|
|
int
|
|
ecb_crypt(key, buf, len, mode)
|
|
char *key;
|
|
char *buf;
|
|
unsigned len;
|
|
unsigned mode;
|
|
{
|
|
struct desparams dp;
|
|
|
|
#ifdef BROKEN_DES
|
|
dp.UDES.UDES_buf = buf;
|
|
dp.des_mode = CBC;
|
|
#else
|
|
dp.des_mode = ECB;
|
|
#endif
|
|
return(common_crypt(key, buf, len, mode, &dp));
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* Common code to cbc_crypt() & ecb_crypt()
|
|
*/
|
|
static int
|
|
common_crypt(key, buf, len, mode, desp)
|
|
char *key;
|
|
char *buf;
|
|
register unsigned len;
|
|
unsigned mode;
|
|
register struct desparams *desp;
|
|
{
|
|
register int desdev;
|
|
|
|
if ((len % 8) != 0 || len > DES_MAXDATA) {
|
|
return(DESERR_BADPARAM);
|
|
}
|
|
desp->des_dir =
|
|
((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT;
|
|
|
|
desdev = mode & DES_DEVMASK;
|
|
COPY8(key, desp->des_key);
|
|
/*
|
|
* software
|
|
*/
|
|
if (__des_crypt_LOCAL != NULL) {
|
|
if (!__des_crypt_LOCAL(buf, len, desp)) {
|
|
return (DESERR_HWERROR);
|
|
}
|
|
} else {
|
|
if (!_des_crypt_call(buf, len, desp)) {
|
|
return (DESERR_HWERROR);
|
|
}
|
|
}
|
|
return(desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE);
|
|
}
|