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European Commission Digital

CEF eSignature: DSS v5.3 RC1 Out Now

European Commission 2018


The European Commission is happy to announce the release of the DSS release candidate (DSS v5.3.RC1).

DSS is an open-source software library for electronic signature creation and validation. It supports the creation and verification of interoperable and secure electronic signatures.

Electronic signing allows for the full digitalisation of business processes, eliminating the time and costs of printing, faxing, mailing, copying, scanning and filing in paper formats which presents many disadvantages.

DSS can be re-used in an IT solution for electronic signatures to ensure that signatures, as well as seals, are created and validated in line with Regulation (EU) No 910/2014 on electronic identification and trust services for electronic transactions (the eIDAS Regulation) and related standards.

DSS allows for a simplification of the complex details of electronic signatures and enables the protagonist to focus on generating what they want to produce, be that an invoice, a contract, etc. DSS is therefore a powerful lever for governments and businesses to integrate electronic signatures with less effort. It also increases cross-border interoperability and allows for higher levels of trust and confidence on electronic transactions.

The first pre-release version of DSS v5.3 comes with a number of improvements and bug fixes. The main new features include:

  • certificate validation as a separate feature in the demo webapp, independently of signature validation;
  • content-timestamps generation;
  • SHA-3 support;
  • non-EU trusted list(s) support;
  • integration of the last version of MOCCA;

The release also includes relevant bug-fixes and improvements listed on the DSS release page, accessible via the link below.

Through the Connecting Europe Facility (CEF), the EU Member States and the European Commission support the adoption of electronic signatures in Europe with the CEF eSignature building block. The deployment of solutions based on this building block in a Member State facilitates the mutual recognition and cross-border interoperability of electronic signatures. This means that public administrations and businesses can trust and use e-signatures that are valid and structured in interoperable formats.