OSS Signing Library of All Signing Standards (e.g. eIDAS PAdES)

[ElTimuro]

• Documenso is currently uses https://github.com/vbuch/node-signpdf to sign documents
• As this is a core pillar of the platform, a state-of-the-art, best-practice library should be developed by Documenso and provided and a dependency for everyone to use
• This ensures a best-practice liberty, built using modern technology and keep it up to date through it's own community
• As part of our mission to open source signing tech and knowhow we want to publish the state of the art libery we would have liked when we got started
• It will support all current digital signatures standards including PadES, CadES, XadES, PKCS # 7 and others
• It will also support remote signing using common HSM providers without the need for much custom code
• The libery will be published separately from Documenso under MIT License to enable easy use
• It will be used to power all signing done by Documenso
• We are looking at implementation in TypeScript or Rust with a provided TypeScript wrapper