[2988] in cryptography@c2.net mail archive
Re: Turing Bombe story - correction
daemon@ATHENA.MIT.EDU (Carl Ellison)
Fri Jul 17 13:27:48 1998
Date: Fri, 17 Jul 1998 01:48:31 -0400
To: Marc Horowitz <marc@cygnus.com>
From: Carl Ellison <cme@acm.org>
Cc: cryptography@c2.net
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For anyone really following this explanation closely, my 26x26 array of pins
needs to have the outside letter label a row and the inside letter label a
column, if a row is to be tested. This is because only those outside
letters that show up in the plaintext or ciphertext for the menu will have
significant voltage. All other outside letters will be fed only by the
diagonal board and could have non-voltage (uncertainty because the letter
wasn't in the crib). It was only a row that was involved in the crib that
would be tested for a drop.
- Carl
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|Carl M. Ellison cme@acm.org http://www.pobox.com/~cme |
| PGP: 08FF BA05 599B 49D2 23C6 6FFD 36BA D342 |
+-Officer, officer, arrest that man. He's whistling a dirty song.--+
