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/* $Id: random_key.c,v 1.2 1995/12/17 19:12:05 tholo Exp $ */
/* Copyright (C) 1992 Eric Young - see COPYING for more details */
#include "des_locl.h"
void des_random_key(ret)
des_cblock ret;
{
des_key_schedule ks;
static u_int32_t c=0;
static pid_t pid=0;
static des_cblock data={0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef};
des_cblock key;
#ifdef MSDOS
pid=1;
#else
if (!pid) pid=getpid();
#endif
((u_int32_t *)key)[0]=(u_int32_t)time(NULL);
((u_int32_t *)key)[1]=(u_int32_t)((pid)|((c++)<<16));
des_set_odd_parity((des_cblock *)data);
des_set_key_schedule((des_cblock *)data,ks);
des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
(int32_t)sizeof(key),ks,(des_cblock *)data);
des_set_odd_parity((des_cblock *)key);
des_cbc_cksum((des_cblock *)key,(des_cblock *)key,
(int32_t)sizeof(key),ks,(des_cblock *)data);
bcopy(key,ret,sizeof(key));
bzero(key,sizeof(key));
bzero(ks,sizeof(ks));
}
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