eIDAS Signature Library .NET is a specialized cryptographic DLL for .NET 8, .NET 9 and .NET 10, classic .NET Framework (3.5 up to 4.8.1), and .NET Standard 2.0, designed for integrating eIDAS-compliant digital signatures into your C# applications.
- Code Samples

- Download eIDAS Signature Library .NET with Visual Studio Sample Projects

- eIDAS Signature Library .NET User Manual

The main function of eIDAS Signature Library .NET is to digitally sign files in PDF (PAdES), CAdES or PKCS#7 cryptographic standards (.P7M or .P7S files). It fully supports X.509 certificates stored on PFX files, eIDAS Qualified Signature Creation Devices (QSCD) such as smart cards and USB tokens, HSMs (Hardware Security Modules), PKCS#11 standard, or Microsoft Certificate Store.

eIDAS PAdES & PDF Digital Signature Features:
– Support for certificates issued on smart cards, USB tokens, QSCD, or HSM devices
– Native support for eIDAS QSCD hardware devices
– Support for eIDAS qualified digital certificates and electronic seals (EU Regulation 910/2014 & eIDAS 2.0)
– Support for Elliptic Curves (ECC) digital certificates
– Support for bypassing smart card PIN
– Support for MS-CAPI, CNG, CSP, KSP
– Support for PKCS#11 (QSCD or HSM integration)
– Batch (bulk) digital signature (sign an entire folder automatically)
– eIDAS compliant Time Stamping (TSA integration)
– Support for PAdES-LTV (Long Term Validation)
– Supports PAdES-LT and PAdES-LTA profiles (Long-Term Archival) with full LTV support
– SHA-256, SHA-384, and SHA-512 support
– Embedding Revocation Information (CRL and/or OCSP) for the signing certificate (PAdES-LTV Long Term Validation, PAdES-LT, and PAdES-LTA)
eIDAS CAdES Features:
– Support for certificates issued on smart cards, USB tokens, QSCD, or HSM devices
– Full support for eIDAS QSCD hardware devices
– Support for eIDAS digital certificates (EU Regulation 910/2014)
– Support for bypassing smart card PIN
– Support for MS-CAPI, CNG, CSP, KSP
– Support for PKCS#11 (QSCD or HSM integration)
– eIDAS compliant Time Stamping
– SHA-256, SHA-384 and SHA-512 support
– CAdES-BES, CAdES-C, CAdES-T, CAdES-XL, CAdES-LT, CAdES-A support
– Digitally sign and verify large CAdES signed files (100 MB or more)
PKI Interoperability – eIDAS Signature Library .NET can access and use X.509 certificates and associated private keys, stored on smart cards, USB tokens, PFX files, QSCD or HSM devices (eIDAS qualified digital certificates).
eIDAS Signature Library .NET Platform Compatibility: .NET Framework 3.5 up to 4.8.1 and .NET (Core) 6+ (including .NET 8, 9, 10 and newer versions)
Operating Systems Compatibility: Windows, Linux and macOS (depending on .NET runtime)
Programming Languages: C#, VB.NET, ASP.NET, Visual C++, Windows PowerShell. The library is compiled for .NET 8/9/10, .NET Framework 3.5, .NET Framework 4.6.2 and 4.8. The .NET Standard 2.0 version of the library is also available.
Licensing:
eIDAS Signature Library .NET can be used by companies, freelancers or software vendors, who develop their software for third-parties (companies or individuals) or for internal company use.
The license is a lifetime license. There is no additional cost like monthly / annual fees or fees per use. When a new version is released you can continue using your purchased version as usual.
The source code of the entire library (C#, 100% managed code written in Visual Studio) is included if you choose to purchase a Full License.
The technical support and updates are free for 12 months after purchase. If you need help with our software, please contact us to receive prompt assistance from our technical support team. We offer free before-and-after purchase technical support for our programs. Technical support is provided by email only. Email response time is usually less than 24 hours.
60 Day Money Back Guarantee – If you are not pleased with our software for any reason, you are entitled to our 60 day no hassle, no questions asked, money back guarantee.
| License Type | Price (€) | Buy with PayPal | Buy with credit card | |
| Full License (source code included, unlimited developers, high priority support) |
690 EUR Lifetime License |
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| Single Developer License (one developer, standard support) |
290 EUR Lifetime License |
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| Technical Support | Technical support is free for 12 months after purchase. Typical response time is within 6 hours.
Purchase Upgrade and Support package. |
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Download eIDAS Signature Library .NET with Visual Studio Sample Projects
(latest version: 7.0)
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