Draft: ebip - selective disclosure jws

How can we share our #VerifiableCredentials without revealing more information than we want or need to? Our second EBSI Improvement Proposal #EBIP addresses this topic – and recognises the immense potential of #SelectiveDisclosure to provide users with more control over their VCs.

This is a merge request for Selective Disclosure for JWS ecosystem. The pre-processed markdown format can be found from https://code.europa.eu/ebsi/ecosystem/-/blob/260d06744f9116fb73fe307e0a80e21315245dc9/drafts/draft-sd-jws.md

High level topics:

• clear separation of SD data integrity and with primary signature schemes.
• Verifiable Credential with Selective Disclosure can be as JWT or as JWS, signed with JAdES or any other JWS based signature scheme.
• SD algorithms simplified, single pattern is enough for object and for literals/strings.
• Does not break JWS, JWT or anything else.
• Does not contain dual base64 encoding.
• Works with VCDM 2.0 or with any JSON object.
• Does not require any JWT claims, or require any claims from primary signature scheme.
• Compliant with JSON and JSON-LD