static char sccsid
[] = "@(#)des_crypt.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI";
* 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
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* PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
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* part of Sun Microsystems, Inc. to assist in its use, correction,
* modification or enhancement.
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* INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
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* or profits or other special, indirect and consequential damages, even if
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* Mountain View, California 94043
* des_crypt.c, DES encryption library routines
* Copyright (C) 1986, Sun Microsystems, Inc.
* To see if chip is installed
static int g_desfd
= UNOPENED
;
#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; \
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_crypt(key
, buf
, len
, mode
, ivec
)
COPY8(ivec
, dp
.des_ivec
);
err
= common_crypt(key
, buf
, len
, mode
, &dp
);
COPY8(dp
.des_ivec
, ivec
);
ecb_crypt(key
, buf
, len
, mode
)
return(common_crypt(key
, buf
, len
, mode
, &dp
));
* Common code to cbc_crypt() & ecb_crypt()
common_crypt(key
, buf
, len
, mode
, desp
)
register struct desparams
*desp
;
if ((len
% 8) != 0 || len
> DES_MAXDATA
) {
((mode
& DES_DIRMASK
) == DES_ENCRYPT
) ? ENCRYPT
: DECRYPT
;
desdev
= mode
& DES_DEVMASK
;
COPY8(key
, desp
->des_key
);
if (!_des_crypt(buf
, len
, desp
)) {
return(desdev
== DES_SW
? DESERR_NONE
: DESERR_NOHWDEVICE
);