
Package     : PMCrypt
Version     : V1.00.00
Platform    : OS/2 2.1 or greater.
Licence     : Freeware - Do what you like with it !
Author      : A.Gawthrope. 1995

Function    : To allow any binary or ascii file to be encrypted, thus denying
              access by unauthorised persons, then decrypted by someone with
              the appropriate keys at a later date.

General
Description : The encryption system is a secret key system providing
              encryption for civil / lower security tasks.  (Providing the 
              eight keys required are kept secret) it will provide good 
              security against linear attacks.  Certainly good enough for the
              majority.

              I'm certainly not claiming it cannot be broken given time,
              computer and skill.

Required
Components  : PMCrypt.exe
              PMCrypt.dll
              applib.dll
              crypt.dll

Install     : Create a new folder/directory anywhere on your system, and copy
              the above files into it.  From this directory you can now 
              execute 'PMCrypt'.
              If you execute 'PMCrypt' from another directory be sure
              that there is an entry in your LIBPATH variable (found in
              file 'config.sys') which indicates to the operating system
              where to find the DLL's.

              *** Note ***
              The software will create a settings file called 'PMCrypt.ini'
              in the directory where the software is executed.  To avoid 
              creating duplicates of this file I would suggest that you
              install all the files in a single place and change to that
              directory/folder before executing the software.

Usage
Guidelines  : Within the settings dialog it is possible to set default keys.
              These are used for encryption and decryption when the user
              does not generate any other keys.  As the default keys are
              stored along with the other settings details this is a 
              weakness if the user relies upon these keys.

              A set of keys for the current session can be generated and used
              for encryption / decryption whilst the software is running.
              These are not stored anywhere when the software is not being used.

              Futhermore one time keys can be generated for each individual
              encryption or decryption.  Again these are not stored when the
              software is not being used.

              Once a file has been encrypted with a set of keys, decryption
              will only work if the USER supplies these keys again.  The
              software does not keep track in anyway of what keys encrypted
              what file.
 
Emails      : If you have any comments then please post them to : 
              pmcrypt@paddocks.demon.co.uk



Version  Release     
History  Date        Comments
=======  ==========  ========
1.00.00  07-10-1995  First release.
                     There is currently no online help available, this is 
                     being developed right now.
 
