1994-06-22 - Re: something I’ve always wondered

Header Data

From: danisch@ira.uka.de (Hadmut Danisch)
To: cypherpunks@toad.com
Message Hash: c7850dd9437cf994c3d18143c36c8dc9bd754074a4f74d79d2a756102e260789
Message ID: <9406220731.AA02364@tartarus.ira.uka.de>
Reply To: N/A
UTC Datetime: 1994-06-22 07:33:31 UTC
Raw Date: Wed, 22 Jun 94 00:33:31 PDT

Raw message

From: danisch@ira.uka.de (Hadmut Danisch)
Date: Wed, 22 Jun 94 00:33:31 PDT
To: cypherpunks@toad.com
Subject: Re: something I've always wondered
Message-ID: <9406220731.AA02364@tartarus.ira.uka.de>
MIME-Version: 1.0
Content-Type: text/plain

> Does DES (or name your favorite encryption algorithm) produce as output  
> all possible cyphertexts of length L, given all possible conbinations of  
> keys and plaintexts of length L?

Choose any cyphertext and a random key and decrypt the cyphertext with that
key. Now you have a key and a plaintext which produce this cyphertext.