KSeFSigner is an unofficial .NET 8 workaround for signing XML documents (AuthTokenRequest) in XAdES-BES format for KSeF API 2.0 (Polish National e-Invoicing System). Addresses the ECDSA-SHA256 support gap in .NET 8. Works with UiPath Windows projects
csharp certificates xades xades-bes ecdsa-cryptography xml-signature uipath uipathstudio ecdsa-signatures uipath-rpa ksef net-8 uipath-lib dotnet-8-windows ksef-xml ksef-api ecdsa-sha256-registration system-security-cryptography system-security-cryptography-xml ksef-xml-sign
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Updated
Jun 5, 2026 - C#