/* 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); }