[16248] in cryptography@c2.net mail archive
Illustrated DES Spreadsheet
daemon@ATHENA.MIT.EDU (james hughes)
Wed Sep 29 18:51:49 2004
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In-Reply-To: <p061104bfbd7bc4052267@[66.149.49.5]>
From: james hughes <hughejp@mac.com>
Date: Tue, 28 Sep 2004 13:29:29 -0400
To: cryptography@metzdowd.com
For anyone wondering, or teaching about DES, or interested in perverse
uses for spreadsheets, I have created an "Illustrated DES spreadsheet".
This is a vanilla spreadsheet (no VB or anything exotic) and should
work on many excel and excel workalikes.
http://www.stortek.com/hughes/illustratedDES.xls
Acknowledgements for this work goes to J. Orlin Grabbe for his The DES
Algorithm Illustrated which can be found at
http://www.aci.net/kalliste/des.htm
I have also stole many tricks including how to do XOR in generic excel
which I can not find again to give proper credit. I haven't run this
through the FIPS 140-2 level 1 test suite (but this could easily be
certified :-)
Anyone interested in making one for MD-5?
Enjoy
jim
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