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Groups > comp.lang.python > #16789 > unrolled thread

Insert trusted timestamp to PDF

Started byHegedüs, Ervin <airween@gmail.com>
First post2011-12-07 20:41 +0100
Last post2011-12-07 23:39 -0800
Articles 11 — 4 participants

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Contents

  Insert trusted timestamp to PDF Hegedüs, Ervin <airween@gmail.com> - 2011-12-07 20:41 +0100
    Re: Insert trusted timestamp to PDF Irmen de Jong <irmen@-NOSPAM-xs4all.nl> - 2011-12-07 20:59 +0100
      Re: Insert trusted timestamp to PDF Hegedüs, Ervin <airween@gmail.com> - 2011-12-08 06:09 +0100
      Re: Insert trusted timestamp to PDF Alec Taylor <alec.taylor6@gmail.com> - 2011-12-08 16:28 +1100
      Re: Insert trusted timestamp to PDF Hegedüs, Ervin <airween@gmail.com> - 2011-12-08 08:06 +0100
    Re: Insert trusted timestamp to PDF marco.rucci@gmail.com - 2011-12-07 23:39 -0800
      Re: Insert trusted timestamp to PDF Alec Taylor <alec.taylor6@gmail.com> - 2011-12-08 18:42 +1100
      Re: Insert trusted timestamp to PDF Hegedüs, Ervin <airween@gmail.com> - 2011-12-08 08:59 +0100
        Re: Insert trusted timestamp to PDF marco.rucci@gmail.com - 2011-12-08 03:02 -0800
        Re: Insert trusted timestamp to PDF marco.rucci@gmail.com - 2011-12-08 03:02 -0800
    Re: Insert trusted timestamp to PDF marco.rucci@gmail.com - 2011-12-07 23:39 -0800

#16789 — Insert trusted timestamp to PDF

FromHegedüs, Ervin <airween@gmail.com>
Date2011-12-07 20:41 +0100
SubjectInsert trusted timestamp to PDF
Message-ID<mailman.3383.1323287063.27778.python-list@python.org>
Hello Everyone,

I'm looking for a tool, which can add a trusted timestamp to an
existing PDF file (and can sign - but currently only have to add
TS).

Could anybody help?


Thanks:


a.
 

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#16791

FromIrmen de Jong <irmen@-NOSPAM-xs4all.nl>
Date2011-12-07 20:59 +0100
Message-ID<4edfc58f$0$6850$e4fe514c@news2.news.xs4all.nl>
In reply to#16789
On 07-12-11 20:41, Hegedüs, Ervin wrote:
> Hello Everyone,
>
> I'm looking for a tool, which can add a trusted timestamp to an
> existing PDF file (and can sign - but currently only have to add
> TS).

Note sure what a 'trusted timestamp' is, but pdftk can manipulate pdf 
files. See http://www.pdflabs.com/docs/pdftk-man-page/
(nothing to do with Python btw!)

Irmen

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#16802

FromHegedüs, Ervin <airween@gmail.com>
Date2011-12-08 06:09 +0100
Message-ID<mailman.3392.1323320973.27778.python-list@python.org>
In reply to#16791
Hello Irmen,

On Wed, Dec 07, 2011 at 08:59:11PM +0100, Irmen de Jong wrote:
> On 07-12-11 20:41, Hegedüs, Ervin wrote:
> >Hello Everyone,
> >
> >I'm looking for a tool, which can add a trusted timestamp to an
> >existing PDF file (and can sign - but currently only have to add
> >TS).
> 
> Note sure what a 'trusted timestamp' is,
that's very important to understand what does it mean -
otherwise it's just groping :)

http://tools.ietf.org/html/rfc3161
http://en.wikipedia.org/wiki/Trusted_timestamp

> but pdftk can manipulate
> pdf files. See http://www.pdflabs.com/docs/pdftk-man-page/
> (nothing to do with Python btw!)

looks like it couldn't, but I'll contact them.


thanks:


a.

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#16803

FromAlec Taylor <alec.taylor6@gmail.com>
Date2011-12-08 16:28 +1100
Message-ID<mailman.3393.1323322085.27778.python-list@python.org>
In reply to#16791
Just digitally sign the document using python-gnupg

/problem-solved!

On Thu, Dec 8, 2011 at 4:09 PM, Hegedüs, <airween@gmail.com> wrote:
> Hello Irmen,
>
> On Wed, Dec 07, 2011 at 08:59:11PM +0100, Irmen de Jong wrote:
>> On 07-12-11 20:41, Hegedüs, Ervin wrote:
>> >Hello Everyone,
>> >
>> >I'm looking for a tool, which can add a trusted timestamp to an
>> >existing PDF file (and can sign - but currently only have to add
>> >TS).
>>
>> Note sure what a 'trusted timestamp' is,
> that's very important to understand what does it mean -
> otherwise it's just groping :)
>
> http://tools.ietf.org/html/rfc3161
> http://en.wikipedia.org/wiki/Trusted_timestamp
>
>> but pdftk can manipulate
>> pdf files. See http://www.pdflabs.com/docs/pdftk-man-page/
>> (nothing to do with Python btw!)
>
> looks like it couldn't, but I'll contact them.
>
>
> thanks:
>
>
> a.
>
> --
> http://mail.python.org/mailman/listinfo/python-list

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#16804

FromHegedüs, Ervin <airween@gmail.com>
Date2011-12-08 08:06 +0100
Message-ID<mailman.3394.1323327926.27778.python-list@python.org>
In reply to#16791
Hello,

On Thu, Dec 08, 2011 at 04:28:01PM +1100, Alec Taylor wrote:
> Just digitally sign the document using python-gnupg
> 
> /problem-solved!

using gnupg to sign a document != add a timestamp to a pdf.

May be this doc helps to clear what's the different, and what I want:

http://learn.adobe.com/wiki/download/attachments/52658564/digital_signatures_in_acrobat_9x.pdf?version=1



thanks:


a.
 

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#16806

Frommarco.rucci@gmail.com
Date2011-12-07 23:39 -0800
Message-ID<29302724.405.1323329960258.JavaMail.geo-discussion-forums@vbjs5>
In reply to#16789
Hi, take a look at this online tool: http://easytimestamping.com

It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities. 

The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)

If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.

--
Marco Rucci
securo.it

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#16808

FromAlec Taylor <alec.taylor6@gmail.com>
Date2011-12-08 18:42 +1100
Message-ID<mailman.3396.1323330171.27778.python-list@python.org>
In reply to#16806
Or the python implementation of that RFC:
http://pypi.python.org/pypi/rfc3161/0.1.3

On Thu, Dec 8, 2011 at 6:39 PM,  <marco.rucci@gmail.com> wrote:
> Hi, take a look at this online tool: http://easytimestamping.com
>
> It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities.
>
> The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)
>
> If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.
>
> --
> Marco Rucci
> securo.it
> --
> http://mail.python.org/mailman/listinfo/python-list

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#16809

FromHegedüs, Ervin <airween@gmail.com>
Date2011-12-08 08:59 +0100
Message-ID<mailman.3397.1323331117.27778.python-list@python.org>
In reply to#16806
hello,

On Wed, Dec 07, 2011 at 11:39:20PM -0800, marco.rucci@gmail.com wrote:
> Hi, take a look at this online tool: http://easytimestamping.com

I need to create the PDF on my server - it could be any online
service, but it must to have any kind of API.
 
> It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities. 

that's no problem in Python... :)

http://pypi.python.org/pypi/rfc3161/
 
> The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)

I'm afraid that's not good for us - we need to propagate PDF
files in enbedded mode.
 
> If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.

sounds good - what do you think, when will you release that
about?


Thanks:


a.

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#16817

Frommarco.rucci@gmail.com
Date2011-12-08 03:02 -0800
Message-ID<mailman.3402.1323342151.27778.python-list@python.org>
In reply to#16809
On Thursday, December 8, 2011 8:59:31 AM UTC+1, Hegedüs, Ervin wrote:
> > The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)
> 
> I'm afraid that's not good for us - we need to propagate PDF
> files in enbedded mode.

I'll do some research and let you know if it is feasible.  Anyway, it should be possible to embed it later.

> > If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.
> 
> sounds good - what do you think, when will you release that
> about?

The API is basically ready.  We are only missing the authentication method.  In less then a couple weeks it should be complete.

If you want, I can give you access to a beta version of the API, so you can start integrating the service with your application and then add the required authentication process.  Can I contact you privately by email?

Thanks for your interest, 

Marco.

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#16819

Frommarco.rucci@gmail.com
Date2011-12-08 03:02 -0800
Message-ID<8925363.67.1323342143055.JavaMail.geo-discussion-forums@yqgo15>
In reply to#16809
On Thursday, December 8, 2011 8:59:31 AM UTC+1, Hegedüs, Ervin wrote:
> > The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)
> 
> I'm afraid that's not good for us - we need to propagate PDF
> files in enbedded mode.

I'll do some research and let you know if it is feasible.  Anyway, it should be possible to embed it later.

> > If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.
> 
> sounds good - what do you think, when will you release that
> about?

The API is basically ready.  We are only missing the authentication method.  In less then a couple weeks it should be complete.

If you want, I can give you access to a beta version of the API, so you can start integrating the service with your application and then add the required authentication process.  Can I contact you privately by email?

Thanks for your interest, 

Marco.

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#16807

Frommarco.rucci@gmail.com
Date2011-12-07 23:39 -0800
Message-ID<mailman.3395.1323329970.27778.python-list@python.org>
In reply to#16789
Hi, take a look at this online tool: http://easytimestamping.com

It is able to apply RFC3161 compliant trusted timestamps, issued by accredited Certification Authorities. 

The timestamp is applied to the pdf in detached mode (i.e. as a separate .tsr file)

If you need to integrate the timestamping process in a python app, be patient, we will release an API and a command line version very soon.

--
Marco Rucci
securo.it

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