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digital signature

PDF PAdES external digital signatures using ETSI.CAdES.detached

This article explores how digital signatures in PDF work and how to digitally sign the PDF document when signature is created in remote app, device or service. In the end you will also find references that will help you implement Read more…

By Margus Pala, 2 weeks2 weeks ago
XAdES digital signature
digital signature

Convert XAdES to ASIC-E container manually (or programmatically)

XAdES – is eIDAS compliant flexible digital signature format in XML format. It has information of what kind of files are signed by whom. It can contain timestamp and OCSP. It can contain file references or even contents in the Read more…

By Margus Pala, 3 weeks3 weeks ago
digital signature

PKCS #11 RSA signature with OpenSC and Gemalto eToken 5110

I have at hand Gemalto Safenet eToken with eIDAS Qualified Electronic Seal (also known as e-Seal or Digital Stamp or Document Signing Certificate) issued by SK ID Solutions. I want to sign sha256 hash with. First I will check some Read more…

By Margus Pala, 1 month1 month ago
digital signature

OpenSSL Elliptic Curve Digital Signature Creation and Verification

This article shows practical examples of how to generate and verify Elliptic curve (ECDSA) signatures using OpenSSL. Step 1. Create private and public EC keys Assuming we want to sign data in test.txt then we need to create hash and Read more…

By Margus Pala, 3 months3 months ago
digital signature

eIDAS digital signature profiles

eIDAS standard can have multiple digital signature profiles. These mean how much proof is embedded into the signature metadata for later validation. Following table contains summary of supported eIDAS digital signature profiles XAdES CAdES PAdES STANDARD BASELINE STANDARD BASELINE STANDARD Read more…

By Margus Pala, 4 months4 months ago
digital signature

CEF eSignature building block “Hello World”

CEF eSignature building block is very powerful tool. However it is daunting task to get started with it. Because of the complexity most of the smaller development agencies reject all project that has qualified electronic signature component. There are also Read more…

By Margus Pala, 4 months4 months ago
Announcements

eID technology and credits

Technology Here is listed some of the tools, frameworks and technologies we are working to achieve secure user identification and creating digital signatures. Apache2 web server which has great built in support for Client Certificate Authentication. This means that it Read more…

By Margus Pala, 4 months4 months ago
e-ID

Are national eID cards violating your privacy?

People are often confusing eID related topics that are not one and the same. Not knowing all the facts makes them scared of their privacy. Lets clarify some questions that I have seen people to be misunderstanding. Using national eID Read more…

By Margus Pala, 4 months4 months ago
digital signature

How eID card signing works on the web

ID cards are Smart cards with a chip or NFC.  They can be connected to computers or or other devices using a reader with special apps and drivers. Governments are usually providing these drivers, aka “eID Middleware“, to work with Read more…

By Margus Pala, 5 months5 months ago
e-ID

Let’s fix your DigiDocService problem

If you found this page then chances are that you need to replace your DigiDocService integration immediately with more modern solutions. Unfortunately it is not most trivial task and might cost you decent amount of money and headache. Most companies Read more…

By Margus Pala, 6 months5 months ago

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