[cryptography] coderman's keys

Zack Weinberg zack.weinberg at sv.cmu.edu
Fri Nov 1 10:57:03 EDT 2013


On Fri, Nov 1, 2013 at 9:01 AM, Dave Howe <davehowe.pentesting at gmail.com> wrote:
> On 01/11/2013 12:04, Natanael wrote:
>>
>> No hints at what kind of client it takes? Custom config or recompile?
>>
> From the url in the key, I am assuming it is a tor hidden service, hence
> you would need a local MTA able to route over TOR.
> tempted to have a go myself this weekend, given I haven't seen a tor
> smtp implementation before and it intrigues me...

That's a cute idea, but "dot.onion" is too short to be a *real* onion
address; the label before "onion" is the base32 encoding of a 10-byte
truncated SHA1 (presently), so it has to be exactly 16 characters
long.

zw


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