andrewg at andrewg.com
Tue Jun 6 15:14:49 CEST 2017
On 2017/06/02 18:25, Peter Lebbing wrote:
> I did later realize that if somebody used a timestamping service to
> timestamp a document you signed, you would have to argue that you
> already published your secret key before that time.
To protect against this, one would use a timestamping service to sign
the secret key publication, thereby proving the publication was earlier
than the forgery.
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