W8SDZ@Simtel20.ARPA (08/26/84)
From: Keith Petersen <W8SDZ@Simtel20.ARPA>
PASS30, a new program to add password access to any .COM file is now
available on SIMTEL20. Here's a list of the files, followed by a
brief description of how it works:
Filename Type Bytes Sectors CRC
Directory MICRO:<CPM.FILUTL>
PASS30.COM.1 COM 512 4 = 4H 5A48H
PASS30.DOC.1 ASCII 1334 11 = BH 9B93H
PASS30.HEX.1 ASCII 1271 10 = AH 6139H
This is a novel little program that will install a password into any
COM file. The best way to explain is to give an example:
A>DIR <- the two files are on the dsk
PASS30 .COM | STAT .COM
A>STAT <- the original file is run
A: R/W 38k free
A>PASS30 STAT.COM <- PASS30 is invoked
Password? FREEDOM <- the PW is now set
A>STAT <- someone tries to run it
Password? BARF <- oops, wrong pw, so warmboot
A>
A>STAT <- let's try again
Password? FREEDOM <- proper pw entered, so run
A: R/W 38k free the program
A>
DO NOT run PASS30 over a program twice! then you will need to enter
TWO passwords (it has no way of "clearing" the pw, so once it's set,
it's locked in there.)
--Keith