From red@crunch.usgmrl.ksu.edu Wed Aug  9 22:57:09 1995
Date: Wed, 9 Aug 1995 15:58:33 -0500
From: red@crunch.usgmrl.ksu.edu (Rick Dempster)
Message-Id: <9508092058.AA21701@crunch>
To: ulla@Stupi.SE
Subject: Re: Password generator
Content-Type: X-sun-attachment

----------
X-Sun-Data-Type: text
X-Sun-Data-Description: text
X-Sun-Data-Name: text
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 18


-> 
->   I`m looking for a password generator, something to generate new
->   passwords for a lot of accounts. 
-> 

I use genpass to generate random passwords for root for all of my
systems.  It can be modified to generate any number of random
passwds you like.  

I generate more characters than needed and then select 8 out
of each set.  I do this because other people have a copy
of the generated passwords but the don't have the key
to where to start, its in my head.

Rick Dempster
Net Admin
USGMRL
----------
X-Sun-Data-Type: c-file
X-Sun-Data-Description: c-file
X-Sun-Data-Name: genpass.c
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 65

/*    genpass.c
 *
 *
 *    This program was written to generate root passwords.
 *    Each password will be eight characters in length and
 *    be a mix of alpha, numeric and special (characters
 *    over the 1 though 0 keys).
 *
 *    This program call a random number generator random.c
 *    any must be supplied with new seeds every time.
 *
 */
#include <stdio.h>

#define SEED_X  249
#define SEED_Y  15036
#define SEED_Z  4343


int     ix=SEED_X,
        iy=SEED_Y,
        iz=SEED_Z;


void main()
{
  double    random();

  int       i,j,
            value;

/*************************************************************/

  printf("Enter the month --> ");
  fscanf(stdin,"%d",&ix);
  printf("Enter the day --> ");
  fscanf(stdin,"%d",&iy);
  printf("Enter the minute --> ");
  fscanf(stdin,"%d",&iz);


  printf("\n\nYour key is %d\n\n\n",(int) (random() * 122 + 1.0));

  for (j=1; j<=10; j++)
    {
    for (i=1; i <= 24; i++)
      {
      do
        {
        value = (int) (random() * 122 + 1.0);
        }
      while ((value<35)||
	     (value>122)||
	     (value==39)||
             (value==94)||
             ((value>42)&&(value<48))||
             ((value>57)&&(value<65))||
             ((value>90)&&(value<97)));
      printf("%c",value);
      }
    printf("\n");
    }


}
----------
X-Sun-Data-Type: c-file
X-Sun-Data-Description: c-file
X-Sun-Data-Name: random.c
X-Sun-Charset: us-ascii
X-Sun-Content-Lines: 65

/****************************************************************
 *
 *  SOURCE FILE:     random.c
 *
 *
 *  FUNCTION:        random()
 *
 *
 *  DESCRIPTION:     This functions is a C code implementation
 *                   of the Wichmann-Hill algorithm pseudo-
 *                   random number generator.
 *                   References: EECE 836 Class hand-out.
 *
 *
 *  DOCUMENTATION
 *  FILES:      None.
 *
 *
 *  ARGUMENTS:      none.
 *
 *
 *  RETURN:         double
 *                  random() returns a pseudo-random number
 *                  between 0 and 1.
 *
 *
 *  AUTHOR:     Richard E. Dempster
 *
 *
 *  DATE CREATED:   15 September 1991
 *
 *
 *  REVISIONS:      None.
 *
 *
****************************************************************/


#include <math.h>

extern  int     ix,
                iy,
                iz;

double random()
{
    double      modf(),
                intpart;


    ix = 171 * (ix % 177) - 2 * (ix / 177);
    iy = 172 * (iy % 176) - 35 * (iy / 176);
    iz = 170 * (iz % 178) - 63 * (iz / 178);

    if (ix < 0)
    ix += 30269;
    if (iy < 0)
    iy += 30307;
    if (iz < 0)
    iz += 30323;

    return(modf((double) ix / 30269.0 + (double) iy / 30307.0
       + (double) iz / 30323.0, &intpart));

}