Analogies to explain the basic principles of encryption as used by OpenPGP

Daniel Krebs mailinglist at
Thu Jul 3 15:41:57 CEST 2014

Hi Olav,

Am 03.07.2014 14:00, schrieb Olav Seyfarth:
> I'd also rather use the analogy of a "padlock without key" to be distributed by
> the receipient of a message. That way you're able to explain the prerequisite
> for asymmetric crypto as we use it in OpenPGP: the receipent must "do something"
> BEFORE anyone can send anything (secured by that means) to him. Everyone knows
> what happens if you snap the lever into the lock - you're only able to unlock it
> if you have the key (or a big tool, OK).

But how would you explain signing from that point of view?

kind regards
daniel krebs

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