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SignServer Contributors

Discover how you can make a valuable contribution to the SignServer open-source project. We welcome and appreciate all contributions.

Malin Ridelius SignServer

Our SignServer user community is vital to the growth and success of our product. We welcome and value all contributions, big or small, that help shape the development of SignServer. From testing to improvement suggestions, your valuable contributions are highly appreciated.

Malin Ridelius, VP Keyfactor Community Open Source products.

How to contribute to SignServer

If you want to contribute to the project, we welcome you to take part in discussions, submit an issue, or create a pull request under the LGPLv2.1+ license. 

For more information, see SignServer Contributing Guidelines on GitHub


We welcome and appreciate all contributions to SignServer. The following list, in approximate chronological order, includes the names of people who have contributed code to the project. Additionally, many others have contributed with bug reports, feature suggestions, and more.

We would like to recognize the following individuals for their code contributions:

  • Henrik Andréasson, kinneh(at)users.sourceforge.net, Project initiator.
  • Philip Vendil, herrvendil(at)users.sourceforge.net, Former main developer of the framework.
  • Lars Silvén, lars.silven(at)keyfactor.com, SSL-RMI parts and the possibility to have custom web front end.
  • Tomas Gustavsson, tomas.gustavsson(at)keyfactor.com, Core developer, PDF Signer, PKCS11 sign token, Improved the TSA client with more arguments, MRTD SOD signer, etc etc.
  • Markus Kilås, markus.kilas(at)keyfactor.com, Core developer, XML Signer/validator, MRTD SOD signer, etc etc.
  • Ezizmuhammed Muhamedkuliyev, rayback2(at)gmail.com, OOXML, ODF Signer/validator, PDF signer, CRL/OCSP validators.
  • Christophe Sahut, christophe.sahut(at)sgs.com, Install howto for SignServer 3.1 on RHEL systems. See doc/howtos.
  • Bruno Bonfils, French install howto for SignServer 3.2. See wiki.opencsi.com.
  • Marcus Lundblad, marcus.lundblad(at)keyfactor.com, Core developer, Down-for-maintenance support, archiving of time-stamp requests, etc etc.
  • Antoine Louiset, antoine.louiset(at)yousign.fr, installation package for SignServer 3.2 on Debian. See doc/howtos.
  • Luis Maia, lmaia(at)dcc.fc.up.pt, XAdES Signer.
  • Pablo Ruiz García, pablo.ruiz(at)gmail.com, Detached signature option in CMS Signer.
  • Vinay Singh, Former Core developer.
  • Jaime Hablutzel, Initial patch with crypto token support for Azure Key Vault.
  • Rammohan Bandi, rammohan.bandi(at)keyfactor.com, Former Quality Assurance.
  • Magnus Normark, magnus.normark(at)keyfactor.com, Product Owner.
  • Nima Saboonchi, nima.saboonchi(at)keyfactor.com, Core developer.
  • Oscar Norman, oscar.norman(at)keyfactor.com, Core developer.
  • Hanna Hansson, hanna.hansson(at)keyfactor.com, Core developer.


Kambi Sports Solutions has kindly donated a Meinberg PCI GPS clock to the SignServer project. The GPS clock will be used to demonstrate how to set up SignServer as a time-stamp authority and integrate it with a GPS clock on a GNU/Linux server. Thanks to Lezgin Bakircioglu for making this possible.