Dec 102017
 
ENCRYPT and DECRYPT are file encryption and decryption utilities. They use the DES method of encryption.
File DES.ZIP from The Programmer’s Corner in
Category Utilities for DOS and Windows Machines
ENCRYPT and DECRYPT are file encryption and decryption utilities. They use the DES method of encryption.
File Name File Size Zip Size Zip Type
DECRYPT.EXE 14419 13178 deflated
DES.DOC 11237 3749 deflated
ENCRYPT.EXE 14410 13156 deflated
PASSWORD.LST 1686 606 deflated

Download File DES.ZIP Here

Contents of the DES.DOC file



NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

INTRODUCTION

ENCRYPT and DECRYPT are file encryption and decryption utilities,
designed for situations where you need to prevent a file's contents
from being discovered, or a program from being executed. Both programs
incorporate DES routines and MAY NOT be exported.


RUNNING THE UTILITIES

Both programs are command line driven. The command line format is
as follows, and there must be EXACTLY three user defined entries on the
command line to start the either program.

encrypt

decrypt

is replaced by the word you wish to use for the
encryption/decryption key. DO NOT forget the
password or the file will remain encrypted for a
very long time!

is replaced by the name of the file you wish to
encrypt. This file IS NEVER changed and is
opened for read-only use.

is replaced by the name of the file you wish to
produce in encrypted form. if the file exists it
will be OVERWRITTEN!

You SHOULD NOT attempt to read a file and produce an output file of
the same name. DO NOT use the same name for the source and destination
files!


PASSWORD SELECTION

The LONGER the password used for encryption, the MORE DIFFICULT it
will be for anyone to decrypt the files using brute force decryption
methods. I suggest a MINIMUM password length of ten (10) characters.
I have included a sample batch file with several large, randomly
generated passwords for use with these programs.


DISCLAIMER

YOU HAVE BEEN NOTIFIED OF THE PURPOSE OF THESE PROGRAMS AND OF THE
FACT THAT ONCE A FILE HAS BEEN ENCRYPTED USING ENCRYPT IT CANNOT BE
DECRYPTED WITHOUT KNOWLEDGE OF THE PASSWORD AND ACCESS TO THE DECRYPT
PROGRAM. IF YOU ARE NOT SURE THIS IS WHAT REALLY WANT TO ACCOMPLISH, DO
NOT USE ENCRYPT ON A FILE! UNDER NO CIRCUMSTANCES CAN THE AUTHOR OR HIS
DISTRIBUTORS BE HELD RESPONSIBLE FOR ANY DAMAGE, REAL OR OTHERWISE,
INCLUDING BUT NOT LIMITED TO THE LOSS OF BUSINESS RECORDS, PERSONAL
DATA OR SOFTWARE, WHICH MAY RESULT FROM THE USE OF ENCRYPT OR DECRYPT.
YOU ARE SOLELY RESPONSIBLE FOR THE USE OF THIS SOFTWARE AND IT IS YOUR
RESPONSIBILITY TO DETERMINE THE SUITABILITY OF THIS PROGRAM FOR USE ON
YOUR COMPUTER SYSTEM.

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NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

REPORTING A SOFTWARE PROBLEM

In the event that discover a problem, the author would like to hear
about it. After you have checked the documentation to be sure you are
not doing something wrong, please fill out and return the enclosed
Problem Report Form, by U.S. mail.

Please fill out the form as completely as possible so the author
can understand what the problem is. If possible include screen dumps of
the problem you have found. If you have any unusual hardware installed
please be sure to include this information as well.


SOFTWARE WARRANTY

This software has been tested and found to be error free. The
author has taken all reasonable steps to be certain that this software
will perform as indicated.

However it is impossible for any author to test their software on
every computer in existence today and the he author and his dealers and
distributors cannot be held responsible for any damage that might occur
from the use of this software.

For a period of ninety (90) days from the date of purchase from the
author, the author will attempt to fix any problems you might discover.
If this is not possible the author will refund your registration fee.
_______
____|__ | (R)
--| | |-------------------
| ____|__ | Association of
| | |_| Shareware
|__| o | Professionals
-----| | |---------------------
|___|___| MEMBER

This program is produced by Richard Levey, a member of the
Association of Shareware Professionals (ASP). ASP wants to make sure
that the shareware principle works for you. If you are unable to
resolve a shareware related problem with an ASP member by contacting
the member directly, ASP may be able to help you.

The ASP Ombudsman can help you resolve a dispute or problem with an
ASP member, but does not provide technical support for member's
products. Please write to the ASP Ombudsman at P.O. Box 5786, Bellevue,
Washington 98006 or send a CompuServe message via easyplex to ASP
Ombudsman 70007,3536.


SHAREWARE REGISTRATION

Registration of this shareware is REQUIRED if you continue to use
the software after a reasonable trial period. I consider a reasonable
trial period to be no longer than thirty days.





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NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

REQUIRED RUN-TIME LIBRARY STATEMENT

ENCRYPT and DECRYPT were written and copyrighted by the author and
then compiled using WATCOM'S Professional 'C' compiler. They contain
run-time library code supplied by WATCOM under a license agreement.






















































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NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

PROBLEM REPORT FORM

Please fill out this form completely and return it to the author.
Certain questions require you to fill in answers and others require you
to circle an answer.

Program: ______________________ Version: ___________________

Date: _________________________ Phone: _____________________

DOS version: __________________ DOS: PC - MS - 386MOS

EMAIL address: _____________________________________________________

Processor: 8086 80286 80386SX 80386DX 80486 NEC V20 NEC V30

Co-Processor: None 8087 80287 80387SX 80387 Weitek 1167 3167 4167

Floppy 1: 360k 720k 1.2m 1.4m Floppy 2: 360k 720k 1.2m 1.4m

Hard disk manufacturer:________________________________________

Hard disk capacity:____________________________________________

Disk controller: XT type AT type Interface: RLL MFM SCSI ESDI IDE

Please describe the problem in as much detail as possible. If possible
please include screen dumps commented to show the problem and any error
messages DOS or the program may have displayed.

























Richard Levey
151-28 22nd Avenue
Whitestone, New York 11357


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NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

SHAREWARE REGISTRATION FORM

There are three registrations currently available for this
software. The first is a PERSONAL registration, which licenses the use
of the program on one computer at a time, by one person at a time.

The second registration is a COMMERCIAL registration, which
licenses the use of program on up to five computers, as long as they
are all at ONE PHYSICAL location.

The third registration is a SECURE registration, which licenses the
use of program on up to ten computers. You will receive a disk which
will allow you to make up to ten (10) copies of the software. These
copies WILL only be able to process files created by the programs on
the disk you receive. This feature allows you added security and peace
of mind.

All registrations include free updates for one year (normally an
update is issued every three months) and technical support via
telephone and through EMAIL if you have access to one of the major
networks. You will receive the latest version of the software when you
purchase a registration and a minimum of one update six months later.
Updates after the first year can be purchased for thirty (30) percent
of the registration fee then in effect.

If you purchase a registration and you are not satisfied with the
software within thirty (30) days from the date you receive it, you may
contact the author and arrange to return the software for a full
refund.

All software purchased under one of the registrations described
above will display registration information consisting of the owner's
name and serial number.


























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NOAH'S FILE ENCRYPTION/DECRYPTION UTILITIES
Copyright 1991 - All Rights Reserved

SHAREWARE ORDER FORM


Name:______________________________________________________________

Company:___________________________________________________________

Address:___________________________________________________________

Address:___________________________________________________________

City:_______________________________ State:_______ Zip:____________

Phone Number: (________) ____________-______________


Registration Description Price Quantity Total


Personal DES Registration $ 25.00 ________ $ ____.__


Commercial DES Registration $ 50.00 ________ $ ____.__


Secure DES Registration (10 copies) $ 90.00 ________ $ ____.__


Sub-Total $ ____.__


DISK SIZE REQUIRED Shipping/Handling $ 5.00

5.25 ____ 3.5 ____
Total $ ____.__


Please allow a minimum of three weeks for delivery of your order.
All orders are shipped UPS ground or through the mail.


Please send all orders to:

Richard Levey
151-28 22nd Avenue
Whitestone, New York 11357













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