Re: Why are mail servers not also key servers?

Martin Thomson <martin.thomson@gmail.com> Fri, 21 April 2017 04:52 UTC

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From: Martin Thomson <martin.thomson@gmail.com>
Date: Fri, 21 Apr 2017 14:52:37 +1000
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Subject: Re: Why are mail servers not also key servers?
To: John Levine <johnl@taugh.com>
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On 21 April 2017 at 12:11, John Levine <johnl@taugh.com> wrote:
>
> If a recipient is cooperative, and sends you back a message signed
> with the same key to which you encrypted the message, that tells you
> he got it, but that's not a very interesting case.

It's also abuse of the cryptographic primitives, I hope that this
isn't really how it works and you are eliding certain key details.