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From: "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com>
Newsgroups: sci.crypt
Subject: Re: The lost key
Date: Sun, 6 Apr 2025 13:20:07 -0700
Organization: A noiseless patient Spider
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On 4/6/2025 1:14 PM, Chris M. Thomasson wrote:
> On 4/6/2025 3:41 AM, Marcel Logen wrote:
>> Richard Heathfield in sci.crypt:
>>
>>> On 06/04/2025 02:26, Marcel Logen wrote:
>>
>>>> 49184 87069 85461 51598 38286 31222 99049 92521 48220 18433
>> [...]
>>
>>> 38811 65216 66401 68566 71607 88766 30093 20785 13788 66768
>> [...]
>>> 53109 21508 67876 04651 44198 09199 66939 09980 53449 11974
>>> 77016 06674 253
>>
>> OK
>>
>>> (Quite a practical little cipher as it turns out.)
>>
>> ACK
>>
>> The five-groups remind me of the "number stations" from the
>> Cold Ware era.
> 
> Shit. I was not paying attention to the five groups. For some reason 
> 3+8+8+1+1 = 21, is that mapping to an alphabet?
> 
> 65216 = 20
> 66401 = 17
> 
> I just don't know. Argh! I need to get back to fractal work now. Damn. 
> The only time I have to work on it is late at night when I am dead 
> tired. Ugggg. Sorry Richard. ;^o
> 

I have no idea if that is it. But it seems like fun:

54236 = 20

would map to the same position in an alphabet as:

65216 = 20

Oh well.