[futurebasic] Re: [FB] Data encryption/security

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From: Mel Patrick <mel@...>
Date: Wed, 1 Sep 1999 20:45:54 -0700
>Has anybody worked with a database project in FB where the data needed to be
>I have a security issue where I have a Macintosh with a database on it. The
>Macintosh is easily accesible to various people. In other words, I have no
>control over who could access it other than putting a password on the Mac
>and database program.
>The issue is that I don't want anyone to be able to use the database file if
>they took it off of that Macintosh.
>I just noticed in a review of the current Seybold conference that MacOS 9 is
>supposed to have enhanced security features. But I'd like to build the
>security at the database level.
>Any ideas?

All things being equal. None of which ever are, I'd use the ethernet 
card address as a valid Mac check. Since ethernet needs to have a 
unique address and the likelyhood of two of them with the same 
address is remote, sounds like a safe bet.

Course, this hinges on the systems having built in ethernet. Failing 
that, I see a few programs are starting to once again, put invisible 
files in the Prefs folder so they maintain control. Depending on the 
ability of the users, this may work too.

As for advanced "security" measures, give anyone with a good 
knowledge of the Mac 5 minutes with your database and he'll read it 
back to you. It's only the honest people you keep out.

I used to have a program that ran with an encrypted database. Unless 
you knew the password the file wouldn't open. The main problem is if 
the data gets garbled. Once its bad and encrypted, forget rebuilding 
it. Backups are a must if you encrypt files directly.

Mel Patrick