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Article #299Re: MS-BASIC file security possible?
From: Jerry Greenwood
Date: Sun, 13 Sep 1992 14:51
Date: Sun, 13 Sep 1992 14:51
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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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Newsgroups: alt.msdos.programmer Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!nucsrl!ddsw1!serveme!gagme!grnwood 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 Lines: 21 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