From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/75261 Path: news.gmane.org!not-for-mail From: =?ISO-8859-1?Q?Martin_Schr=F6der?= Newsgroups: gmane.comp.tex.context Subject: Re: PDF Digital Signatures Date: Tue, 20 Mar 2012 23:37:58 +0100 Message-ID: References: <1346160652.20120319102714@gmx.de> <4F67AF4D.9030709@wxs.nl> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1332283096 7139 80.91.229.3 (20 Mar 2012 22:38:16 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Tue, 20 Mar 2012 22:38:16 +0000 (UTC) To: mailing list for ConTeXt users Original-X-From: ntg-context-bounces@ntg.nl Tue Mar 20 23:38:16 2012 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1SA7gx-0003II-CN for gctc-ntg-context-518@m.gmane.org; Tue, 20 Mar 2012 23:38:11 +0100 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id D5F561027A; Tue, 20 Mar 2012 23:38:10 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id zKfFWcQUFvTg; Tue, 20 Mar 2012 23:38:08 +0100 (CET) Original-Received: from [127.0.0.1] (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id F2F6E101E3; Tue, 20 Mar 2012 23:38:07 +0100 (CET) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 8B365101E3 for ; Tue, 20 Mar 2012 23:38:06 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (localhost [127.0.0.1]) (amavisd-new, port 10024) with LMTP id aI6lRvGQXfQU for ; Tue, 20 Mar 2012 23:38:00 +0100 (CET) Original-Received: from filter2-ams.mf.surf.net (filter2-ams.mf.surf.net [192.87.102.70]) by balder.ntg.nl (Postfix) with ESMTP id A7BE210194 for ; Tue, 20 Mar 2012 23:38:00 +0100 (CET) Original-Received: from mail-gy0-f169.google.com (mail-gy0-f169.google.com [209.85.160.169]) by filter2-ams.mf.surf.net (8.14.3/8.14.3/Debian-9.4) with ESMTP id q2KMbxKG026312 for ; Tue, 20 Mar 2012 23:38:00 +0100 Original-Received: by ghrr18 with SMTP id r18so717672ghr.14 for ; Tue, 20 Mar 2012 15:37:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=YD8fPOe1dPP7axYmTVnv7FP9dhgY1IaL4hBJCmDv1z0=; b=HBPqntEl4dl7jE7KmSdF+uO730k+QNZ42yOKrI9XzyyX6epbLdjKzjt+do5pK+vYop lfe+yQXU117krxUJ2UmvA8E+TEoLQRWI6TnpUeZyDEGlNz8kG42P2SvcnAqgL1mQyCS4 VHziT1B0J+dMYB3N4f2NKaK47R0UvNAFQQ3AtTRR4yWustRazS7RJpb7naKWDx220YhI ZPzzFnB5rU0d9eZyoFu9fADH2biMOxIYGhFVoOIQgq4pV9hWgLH+SmImjOwo6ft6BjQX vN8uqj/h77gWtDJseRtFlsWcN2e2O8jHS8Gz5q0uyVcNS+cbs7RfLXvzwb2DPPt4Myy9 RR4Q== Original-Received: by 10.101.187.13 with SMTP id o13mr536442anp.14.1332283078859; Tue, 20 Mar 2012 15:37:58 -0700 (PDT) Original-Received: by 10.100.100.18 with HTTP; Tue, 20 Mar 2012 15:37:58 -0700 (PDT) In-Reply-To: X-Google-Sender-Auth: CH8b2rXJiA8Yr0E2Lk5ztiOadSw X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=209.85.160.169; country=US; latitude=38.0000; longitude=-97.0000; http://maps.google.com/maps?q=38.0000,-97.0000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0QGLWBXyl - de33e530f7de - 20120320 (trained as not-spam) X-Scanned-By: CanIt (www . roaringpenguin . com) on 192.87.102.70 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:75261 Archived-At: 2012/3/20 Mojca Miklavec : > If qpdf exists it is probably not a legal issue to do password protection then. Of course. > But from the same perspective ... one first needs PDF to be (almost) > finished before being able to sign it. One needs to read as-good-as > the whole PDF, read the certificate from somewhere on the disk and > then sign with that certificate. If certificate is password-protected, > one also needs to provide the password somehow. You can technically sign only parts (IIRC streams) of a PDF. > government. On the other hand they could just as well have used some > standard tool and it would work out of the box. So much about signing > ... gpg is free. So is jpdfsign. See also http://wiki.cacert.org/PdfSigning Best Martin ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : http://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________