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Tagged with sign or digital-signature
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1
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1
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45
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Why can I verify a signature in javacard in JCIDE but not on an actual card?
Background:
I am using JCIDE to develop an applet, and an ACOSJ card with pyAPDU to test the card itself.
I have written an applet that signs (using ECSDSA) and verifies data. When I test these ...
0
votes
0
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36
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Make Pdf LTV without CRLs using DSS 6.0
I am using DSS 6.0:
<dependency>
<groupId>eu.europa.ec.joinup.sd-dss</groupId>
<artifactId>dss-pades</artifactId>
<version>6.0</version>
</...
1
vote
2
answers
125
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Why do I get verification failure in my xmlsec example?
I have to sign an xml file using xmlsec in python.
In the following there is a complete example, including all needed stuff:
The raw xml consists of elements Header and Body and (as a requirement) the ...
Advice
1
vote
5
replies
128
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How to build an API that signs a PDF using eMudhra DSC on a Hypersecure USB token?
I need to build an API (in any language — Python, Node.js, or .NET) that accepts a PDF file and returns the digitally signed PDF.
The signature must be done using my eMudhra Digital Signature ...
0
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1
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103
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Is it possible to create a valid PAdES-LT certification signature with DocMDP level 1 ("No changes allowed")?
I’m trying to find out whether it is possible to create a PAdES-LT certification signature while setting the DocMDP permission level to 1 (No changes allowed).
I’ve tested adding the DSS in the same ...
0
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1
answer
78
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Signing a PDF with a signature returned from an API [closed]
I've been searching and talking to ssl.com's AI assistant for days now and I'm trying to figure out how to sign a PDF using a hash instead of uploading the PDF bytes to their servers. It seems like ...
0
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0
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64
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Unable to generate CMS PKCS#7 file as per OpenSSL CMS expectation
I am trying to implement CMS detached signature for artifacts in Python. The sign operation is being done by private key stored inside AWS KMS service. I have code signing certificate issued by ...
3
votes
0
answers
112
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XML signature validation failing using SignedXML
We are validating the signature in XML responses (for Peppol).
For this we are using the SignedXml (System.Security.Cryptography.Xml) class in C#. Which works fine, most of the times.
For some XML ...
2
votes
1
answer
159
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Signature created via CAPI cannot be verified using CNG, and vice versa
Background
My application is using CAPI to sign and verify some data using RSA 2048.
I'm trying to migrate to CNG, and it must be able to verify past signatures created with CAPI.
Problem
...
3
votes
3
answers
187
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Storing biometric data in a PDF without breaking the digital signature
I'm developing a tool that stores a signer's biometric data inside a PDF together with the digital signature, but I'm unsure where this information should be embedded.
The biometric data is captured ...
2
votes
1
answer
87
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PDFBox 3.0.x external and late signing causes "Signature is invalid"
I am going to implement the external and late signing with PDFBox 3.0.x but the output signed PDF causes "Signature is invalid". The following is my code:
public class CreateSignature2 {
...
0
votes
0
answers
108
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How to add Signature Policy and Signer Role to XAdES-B Signature with DSS Java Library?
I'm integrating the XAdES electronic signature class in Java to send a signed XML invoice to an e-invoicing platform.
I found a Java class that almost fits my needs:
package eu.europa.esig.dss....
0
votes
1
answer
56
views
iTextSharp rectangle drawn is shown incorrectly in a few pages
Drawing rectangles using iTextSharp 5.5.13.2, on a few pages, the rectangles are showing incorrectly. showing vertically instead of all horizontally.
I want to show a signature on multiple pages. To ...
0
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0
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60
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PDFTron: How to embed an external CMS (Bank-Verlag) signature into a signature field created in WebViewer?
I need to sign a PDF using PDFTron where the actual signing is performed by Bank-Verlag (external trust service) at the backend side. The flow is:
In the browser (React + @pdftron/webviewer), I ...
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0
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93
views
Get date from TimeStampToken equivalent in Typescript
I have a web service that returns a Timestamp Token as a base64 string,
I have this code in Java using BouncyCastle to parse, open and extract the date:
String timestamp = "...";
byte[] ...