Re: Generating a large sequence of unique, random numbers

From: Guy Macon (03_at_spamcop.net)
Date: 05/30/03 

Date: Fri, 30 May 2003 09:47:36 +0000

Danilo Gligoroski wrote:
>
>"Ernst Lippe" wrote...
>
>> By encrypting a counter it is possible to generate a new unique
>> code in O(1) time.

>Unique code in what base? In 22?

I have never experienced having two numbers that are different
become the same when I switch bases. Have you?

>By which encrypting algorithm?

I have never experienced having two numbers that are different
become the same when I encrypted them, no matter how many times
I changed the encryption algorithm. Have you?

>after you redesign some cryptographic algorithm to work in base 22,
>then respectable scientific community will have to confirm that
>redesigned encryption algorithm is realy strong, which can take at
>least several years.

Huh? Why not do it in binary and convert at the end?

>Speaking about that specific encryption algorithm which works in base
>22, I can tell you that I have my own cryptographic algorithm that can
>work in any base you want, it is based on quasigroup transformations
>and it uses quasigroups of any order you want. For this problem, the
>quasigroup will be of order 22, but many years will have to pass
>untill it is accepted (or rejected) from cryptographic community.

Not needed at all.

To encrypt a number that is in base 22, just take one bit at a time
and XOR it with one bit from an ordinary stream cypher. Simple.

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