I'll update the documentation this weekend. Paulo
On Thu, Apr 5, 2012 at 3:06 PM, Christian Fritschka <christian.fritsc...@abacus.ch> wrote: > Hi all, > > once again but with the latest iText vesion. I signed a pdf with the example > "How to apply verification according to PAdES-LTV" and wanted to verify the > signed document with example "How to verify". Both from > "http://itextpdf.sourceforge.net/howtosign.html";. > > The validation is ok - a part of it. Because "Timestamp imprint verifies:" > says all the time "false". > If I check the signed document in Adobe everthing is fine. But not with iText. > > Is there a solution how get "Timestamp imprint verifies:" to true? > > Thanks a lot > > Am 27.01.2012 um 15:34 schrieb mkl: > >> Christian, >> >> Christian Fritschka wrote >>> I have a PDF which is signed with a timestamp. When I try to verify the >>> signature I get the message that this signature is not valid. Especially >>> when I try to read the signatures date - it's null. >> >> iText does not yet fully support PAdES part 4 document time stamps, it >> generates them but cannot verify them: It finds them but treats them as >> regular CMS style document signatures. As RFC 3161 style time stamps are >> very much like CMS signatures this works to a certain degree. But as both >> the document hash and the time reference are coded in different fields in >> these styles, the hash value verification fails and the time stamp time >> cannot be read. >> >> If I understood his posts correctly, Paulo started working on PAdES document >> time stamp verification late December. As long as this kind of verification >> is not explicitly requested by some paying client, though, it surely is not >> a high priority project. >> >> Regards, Michael >> >> -- >> View this message in context: >> http://itext-general.2136553.n4.nabble.com/want-to-verify-a-pdf-signed-by-timestamp-tp4327813p4333631.html >> Sent from the iText - General mailing list archive at Nabble.com. >> >> ------------------------------------------------------------------------------ >> Try before you buy = See our experts in action! >> The most comprehensive online learning library for Microsoft developers >> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, >> Metro Style Apps, more. Free future releases when you subscribe now! >> http://p.sf.net/sfu/learndevnow-dev2 >> _______________________________________________ >> iText-questions mailing list >> iText-questions@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/itext-questions >> >> iText(R) is a registered trademark of 1T3XT BVBA. >> Many questions posted to this list can (and will) be answered with a >> reference to the iText book: http://www.itextpdf.com/book/ >> Please check the keywords list before you ask for examples: >> http://itextpdf.com/themes/keywords.php > > > ------------------------------------------------------------------------------ > Better than sec? Nothing is better than sec when it comes to > monitoring Big Data applications. Try Boundary one-second > resolution app monitoring today. Free. > http://p.sf.net/sfu/Boundary-dev2dev > _______________________________________________ > iText-questions mailing list > iText-questions@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/itext-questions > > iText(R) is a registered trademark of 1T3XT BVBA. > Many questions posted to this list can (and will) be answered with a > reference to the iText book: http://www.itextpdf.com/book/ > Please check the keywords list before you ask for examples: > http://itextpdf.com/themes/keywords.php ------------------------------------------------------------------------------ Better than sec? Nothing is better than sec when it comes to monitoring Big Data applications. Try Boundary one-second resolution app monitoring today. Free. http://p.sf.net/sfu/Boundary-dev2dev _______________________________________________ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
