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Article #299

Re: MS-BASIC file security possible?

#299
From: Jerry Greenwood
Date: Sun, 13 Sep 1992 14:51
23 lines
1567 bytes
....or you might try a simple scheme that I used for password encryption.
Again, it's not the most secure but it will keep non programers out of your
business.  

Generate a random number that will be used to add the the ASCII code of
each individual letter.  The random number should be such that it kicks
each letter into the upper (non letter) range.  This random number can be
store at the begining of the file and is used as the decode key for the
rest of the file.  This way if you encode the same word or group of words
twice.....each copy if different.

I don't have a copy of the codes with me as I write but it makes you
encoded file look like garbage and can be done with only a few lines of
code.  My examples are off my machine at present but I'd be glad to post an
example if you like.  

-- 

Submitted for your approval.....
Jerry Greenwood                                                      N9NRG
grnwood@gagme.chi.il.us                                       312-545-2219

--
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Message-ID: <1992Sep13.145127.11193@gagme.chi.il.us>
Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!nucsrl!ddsw1!serveme!gagme!grnwood
References: <3302@carroll1.cc.edu> <18bn7qINNnet@matt.ksu.ksu.edu> <1992Sep9.071023.29506@sequent.com>

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From: grnwood@gagme.chi.il.us (Jerry Greenwood)
Subject: Re: MS-BASIC file security possible?
Message-ID: <1992Sep13.145127.11193@gagme.chi.il.us>
Originator: grnwood@gagme
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Sender: Jerry Greenwood
Organization: Gagme Public Access UNIX, Chicago, Illinois.
References: <3302@carroll1.cc.edu> <18bn7qINNnet@matt.ksu.ksu.edu> <1992Sep9.071023.29506@sequent.com>
Date: Sun, 13 Sep 1992 14:51:27 GMT