Hi Daniel,

Thanks for that info.  Because the bit about signing followed immediately after
the key ID, I hadn't realised that it referred to message signature time/date.
In that case, it would be clearer if the message header displayed in Thunderbird
said :

"Part of the message signed; click on 'Details' button for more information
Key ID: 0xXZXZXZXZ / Message signed on: 15/12/2013 18:29"

Philip
-------------------------------------------------

On 15/12/2013 18:52, Daniel Kahn Gillmor wrote:
> Hi Philip--
> 
> thanks for your thoughtful review of these scenarios.  i only have time
> to respond to one of them now, but i think they all warrant further
> review and probably some functionality changes.
> 
> On 12/15/2013 12:43 PM, Philip Jackson wrote:
>  [a bunch of good diagnostics snipped]
> 
>> Fourth case :  sender's key imported, Thunderbird restarted, trust level set 
>> to
>> 'unknown' and sender's key signed by me.  Thunderbird displays a green band 
>> with
>> the message 'Part of the message signed; click on 'Details' button for more
>> information + key ID and date signed.'
>>
>> The date signed is given as today's date and the time as when the email was
>> first opened, I think - but I actually signed this key last October 
>> (according
>> to Kleopatra).
> 
> In this case, enigmail is reporting the date that e-mail was signed, not
> that the sender's OpenPGP certificate (a.k.a. "public key") was
> certified.  Since OpenPGP certificates are multi-issuer, there can be
> many certifications on any given cert, and they can all have different
> times.  It only makes sense in this context for thunderbird to report
> the message signature time, i think.
> 
> Is there a way you could re-phrase the enigmail header that would
> clarify that the time/date reported is the message signature timestamp
> instead of the certificate's certification timestamp?
> 
>       --dkg
> 
> 
> 
> 
> 
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