From: ecarp@netcom.com (Ed Carp)
Date: Thu, 12 Oct 95 22:06:55 PDT
To: cypherpunks@toad.com
Subject: looking for anti-tamper software
Message-ID: <199510130455.VAA29233@netcom6.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain


I used to have this C source that I could embed in a program, and it
would tell me if the software had been tampered with at runtime.  I've
lost/mislaid/whatever the source, and I was wondering if anyone had anything
that would do the same thing.  As I recall, it calculated a simple CRC and
embedded it into the .EXE file (it was written for MS-DOS).

It doesn't need to be cryptographically secure - I just need to check to see
if the executable has been corrupted.  I've leafed through alt.sources and
comp.sources.*.

Thanks in advance...
-- 
Ed Carp, N7EKG    			Ed.Carp@linux.org, ecarp@netcom.com
					214/993-3935 voicemail/digital pager
Finger ecarp@netcom.com for PGP 2.5 public key		an88744@anon.penet.fi

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