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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 | |____________________________________________________________________|