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/* rand_key.c */
/* Copyright (C) 1993 Eric Young - see README for more details */
/*-
* $Id: rand_key.c,v 1.1.1.1 1994/09/30 14:49:51 csgr Exp $
*/
#include "des_locl.h"
int des_random_key(ret)
des_cblock ret;
{
des_key_schedule ks;
static unsigned long c=0;
static unsigned short pid=0;
static des_cblock data={0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
des_cblock key;
unsigned char *p;
unsigned long t;
#ifdef MSDOS
pid=1;
#else
if (!pid) pid=getpid();
#endif
p=key;
t=(unsigned long)time(NULL);
l2c(t,p);
t=(unsigned long)((pid)|((c++)<<16));
l2c(t,p);
des_set_odd_parity((des_cblock *)data);
des_set__key((des_cblock *)data,ks);
des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
(long)sizeof(key),ks,(des_cblock *)data);
des_set_odd_parity((des_cblock *)key);
des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
(long)sizeof(key),ks,(des_cblock *)data);
des_set_odd_parity((des_cblock *)key);
bcopy(key,ret,sizeof(key));
bzero(key,sizeof(key));
bzero(ks,sizeof(ks));
t=0;
return(0);
}
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