Unbreakable Hoax

[Remo Pini]

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To: cypherpunks at toad.com
Date: Mon Aug 19 11:55:19 1996
> 
>           DISCORDIAN SOCIETY SUPER SECRET CRYPTOGRAPHIC CYPHER CODE
> 
> Of possible interest to all Discordians, this information is herewith 
> release
> from the vaults of A.I.S.B., under the auspices of Episkopos Dr.
>  Mordecai
> Malignatius, KNS.
> 
> SAMPLE MESSAGE: ("HAIL ERIS")
> 
> CONVERSATION:
> A B C D E F G H I J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z
> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
> 
> STEP 1. Write out the message (HAIL ERIS) and put all the vowels at the
>  end
>         (HLRSAIEI)
> STEP 2. Reverse order (IEIASRLH)
> STEP 3. Convert to numbers (9-5-9-1-19-18-12-8)
> STEP 4. Put into numerical order (1-5-8-9-9-12-18-19)
> STEP 5. Convert back to letters (AEHIILRS)
> 
> This cryptographic cypher code is GUARANTEED TO BE 100% UNBREAKABLE.

I found an optimisation to reduce computation time:
Replace steps 1 to 5 by the following step a:

STEP a. Sort the string according to the alphabet.

The properties of the algorithm are still the same, it's unbreakable 
(unfortunately also by the originator, but that's a petty detail).

;-)

- ------< fate favors the prepared mind >------
Remo Pini                        rp at rpini.com
PGP:  http://www.rpini.com/crypto/crypto.html
- ----< words are what reality is made of >----
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