E-mail with deniable authentication
stefan.claas at posteo.de
Wed Aug 30 12:39:23 CEST 2017
Am 30.08.2017 um 11:43 schrieb Peter Lebbing:
> With a little scripting, you could create a new ECC keypair (fast!)
> for each
> message, sign the keypair with your normal key, sign the message with the ECC
> keypair. And when you want to backpedal on a signed message, publish the private
> ECC key and say "look, anybody who downloaded my private key off the web could
> have signed that message".
But then it would be imho advisable that you use a different timestamp
(time in the future), because
when verifying the published message the timestamp would be earlier than
the time the sec key would
have appeared on the net, right?
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