38 messages in org.oasis-open.lists.dssRE: [dss] Timestamping| From | Sent On | Attachments |
|---|---|---|
| Trevor Perrin | Mar 18, 2003 1:31 pm | |
| Dimitri Andivahis | Mar 19, 2003 3:12 pm | |
| Trevor Perrin | Mar 19, 2003 8:35 pm | |
| Dimitri Andivahis | Mar 20, 2003 4:27 pm | |
| jmessing | Mar 20, 2003 4:46 pm | |
| Trevor Perrin | Mar 20, 2003 7:41 pm | |
| jmessing | Mar 20, 2003 8:42 pm | |
| Robert Zuccherato | Mar 21, 2003 7:09 am | |
| Robert Zuccherato | Mar 21, 2003 7:36 am | |
| Trevor Perrin | Mar 21, 2003 3:10 pm | |
| Dimitri Andivahis | Mar 21, 2003 3:35 pm | |
| Dimitri Andivahis | Mar 21, 2003 4:07 pm | |
| Trevor Perrin | Mar 21, 2003 6:24 pm | |
| Nick Pope | Mar 22, 2003 6:58 am | |
| Robert Zuccherato | Mar 24, 2003 7:40 am | |
| Robert Zuccherato | Mar 24, 2003 7:44 am | |
| Robert Zuccherato | Mar 24, 2003 7:51 am | |
| Nick Pope | Mar 24, 2003 8:28 am | |
| Trevor Perrin | Mar 24, 2003 12:03 pm | |
| Gregor Karlinger | Mar 25, 2003 7:39 am |  .bin |
| Gregor Karlinger | Mar 25, 2003 8:05 am | .bin |
| kare...@esat.kuleuven.ac.be | Mar 25, 2003 8:38 am | |
| Trevor Perrin | Mar 25, 2003 10:48 am | |
| Nick Pope | Mar 25, 2003 11:34 am | |
| Robert Zuccherato | Mar 27, 2003 11:08 am | |
| Gregor Karlinger | Mar 31, 2003 12:07 am | .bin |
| Nick Pope | Mar 31, 2003 4:42 am | |
| Dimitri Andivahis | Apr 1, 2003 3:24 pm | |
| Karel Wouters | Apr 2, 2003 4:21 am | |
| Trevor Perrin | Apr 3, 2003 11:47 am | |
| Robert Zuccherato | Apr 3, 2003 11:49 am | |
| Robert Zuccherato | Apr 3, 2003 12:29 pm | |
| Trevor Perrin | Apr 3, 2003 2:06 pm | |
| Dimitri Andivahis | Apr 4, 2003 5:57 am | |
| Dimitri Andivahis | Apr 4, 2003 3:00 pm | |
| Dimitri Andivahis | Apr 4, 2003 3:24 pm | |
| Trevor Perrin | Apr 4, 2003 11:39 pm | |
| Trevor Perrin | Apr 7, 2003 11:56 am |
| Subject: | RE: [dss] Timestamping | |
|---|---|---|
| From: | Nick Pope (po...@secstan.com) | |
| Date: | Mar 25, 2003 11:34:59 am | |
| List: | org.oasis-open.lists.dss | |
Gregor,
I realised that I over simplified the situation. There are three situations:
a] A time-mark is included within the signed data as an indication/affirmation from the signatory of the signing time
b] A time-stamp is included within the signed data, applied against one or all the signed objects, as an affirmation from an independent party of the time at which the signed data existed, which is on or before the signing time.
c] A time-stamp is applied over the signature as an affirmation from an independent party that the signature was created on or after the signing time. If the signing time is also included in the signed data (as in [a]) this can be used to independently support this signing time and protects against later repudiation of the signature.
I think that I have it now matching the options in XAdES.
Nick
-----Original Message----- From: Gregor Karlinger [mailto:greg...@cio.gv.at] Sent: 25 March 2003 15:49 To: 'Trevor Perrin' Cc: ds...@lists.oasis-open.org Subject: RE: [dss] Timestamping
-----Original Message----- From: Trevor Perrin [mailto:tre...@trevp.net] Sent: Tuesday, March 18, 2003 10:38 PM To: ds...@lists.oasis-open.org Subject: [dss] Timestamping
[...]
A time-marked signature is just a signature on some content with a signed attribute (created by the signer) containing the signing time.
A time-stamped signature contains, as an unsigned attribute, a timestamp "token", which somehow binds the time and a hash of the time-stamped signature's signatureValue, and is created and signed by a 3rd party TSA (Time Stamp Authority).
My understanding of those two terms is the following:
* A signature is time-marked if the signer claims the signing time and signes this claim together with the actual data.
* A signature is time-stamped if the time is claimed by a trusted third party, and this claim is incorporated into the signature as time stamp token.
Am I right here? Other opinions?
/Gregor Karlinger
[...]