Gao's Chaos Cryptosystem Algorithim (fwd)

17 Dec 2003


      Forwarded message:
...
From: "Nobuki Nakatuji" <bd1011@hotmail.com>
Subject: Gao's Chaos Cryptosystem Algorithim
Date: Mon, 08 Sep 1997 21:18:24 PDT
...
P(i) Plaintext,C(i) Ciphertext,K(j) Key,Ch(i) Chaos signal,
L Irrational number
P(),C()-->Manage in byte,Length supposing that n byte.
K()-->Character line from ASCII CODE,Length supposing that m.
Ch(n)
begin
Xn+1=aXn(1.0-Xn)
return Xn+1
end
f(K)
begin
w = Sigmaj strtoul(K(j))j
delay=int(w/L)
return(double)(w/L-delay)
end
1.K input
2.delay generato
3.Ch(i) generato
4.P(i) acquire
5.C(i)=P(i) XOR Ch(i+delay)
6.C(i) output
Nice but as noted by others, without a better explanation of what is going
on with Ch(i) the algorithm as detailed is useless.


    ____________________________________________________________________
   |                                                                    |
   |    The financial policy of the welfare state requires that there   |
   |    be no way for the owners of wealth to protect themselves.       |
   |                                                                    |
   |                                       -Alan Greenspan-             |
   |                                                                    | 
   |            _____                             The Armadillo Group   |
   |         ,::////;::-.                           Austin, Tx. USA     |
   |        /:'///// ``::>/|/                     http:// www.ssz.com/  |
   |      .',  ||||    `/( e\                                           |
   |  -====~~mm-'`-```-mm --'-                         Jim Choate       |
   |                                                 ravage@ssz.com     |
   |                                                  512-451-7087      |
   |____________________________________________________________________|