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- CRYPTPWD.EXE Copyright 1991 By Arnold R. McGall Jr.
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- All rights reserved worldwide.
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- User has the right to use this program and to distribute
- to anyone with out charge or gain. User may not include
- this as part of any software intended for sale to a third
- party.
-
- Owner disclaims any responsibility which may arise out of
- the use of this software.
-
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- CRYPTPWD.EXE is designed to encrypt the ascii data found in input file PWD.DAT
- into a form not readable in any form except by the password.exe program (If
- the /E command line paramter is set when password.exe is executed).
-
- The CRYPTPWD.EXE program will read the ascii text information in the PWD.DAT
- password file and create a temporary file named encpwd.dat. Then the
- program will erase the ASCII PWD.DAT file and rename the encrypted ENCPWD.DAT
- file to PWD.DAT.
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-
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- In order to maintain the encryptd PWD.DAT file to add/delete users or to
- change a user's password, it will be necessary to convert the encrypted
- PWD.DAT file back to a file conatining normal ascii text. You do this
- with the companion program DECRYPWD.EXE. A description of DECrypwd.EXE
- follows:
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- DECRYPWD.EXE uses the encrypted PWD.DAT file as input. It then de-crypts
- the data in the encrypted PWD.DAT file and creates a temporary file named
- DECPWD.DAT. Then the program deletes the encrypted PWD.DAT file and
- renames DECPWD.DAT to PWD.DAT. The result is a PWD.DAT file which can
- be edited with any ascii text file editor. NOTE: Be sure to encrypt
- the ascii version of PWD.DAT once changes have been completed.
-
-
- Here's a simple step-by-step procedure to create the initial PWD.DAT
- ascii text file and to encrypt it:
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- 1. Create the PWD.DAT file with a standard ascii text editor.
- Each line contains the user ID and password as follows:
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- USERID/PASSWORD
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- The slash separating the user ID and password is mandatory.
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- 2. To encrypt the PWD.DAT file you must run the CRYPTPWD.EXE
- program while in the file directory where PWD.DAT resides.
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- For example, if the CRPTPWD.EXE program is on a floppy disk
- in drive A:, make the drive and directory where PWD.DAT
- resides current. Then execute CRYPTPWD.EXE as follows:
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- A:\CRYPTPWD
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- NOTE: Remember that the password.exe program MUST be
- executed with the /E command line paramter
- switch set if it is to successfuly read an encrypted
- PWD.DAT password file.
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-
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- To change the encrypted PWD.DAT file back to a ascii text file just
- follow step number 2 above but substitute DECRYPWD.EXE for cryptpwd.exe.
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- WARNING!!!!
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- Once you have encrypted the ascii text PWD.DAT password file you will
- NOT be able to read it with any editor. So be carefull and follow the
- instructions for it's use carefully.
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- The programs CRYPTPWD.EXE and DECRYPWD.EXE should NOT be left on a
- system after use. I would suggest you keep these programs on a floppy
- disk which is stored in a secured place.
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