[15958] in cryptography@c2.net mail archive
snakeoil of the day
daemon@ATHENA.MIT.EDU (Perry E. Metzger)
Wed Aug 18 14:52:19 2004
X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
To: cryptography@metzdowd.com
From: "Perry E. Metzger" <perry@piermont.com>
Date: Wed, 18 Aug 2004 14:21:29 -0400
http://serbianc.sourceforge.net/projects/fEncH
Quoting the project page
This is a fast and simple, yet hard to crack encryption program. It
uses XOR encryption with variable key, based on the password that user
inputs to the program
I read the code quickly -- it is a simple repeated XOR of the key
against the ciphertext, with a couple of twists that don't change the
strength at all. It could have been broken way over a century ago by
someone of modest skill. Today I'd happily assign breaking it as a
homework exercise to intro cryptography students.
At least this is an open source project instead of some commercial
product.
Perry
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