Interoperability

Self-Sovereign Identity solutions are interoperable because they are based on open standards.

Open standards

Interoperability is a critical succesfactor for adoption. Therefor, proper SSI solutions adhere to open standards. Specifically to the W3C standards being drawn up by W3C working groups and the Decentralized Identity Foundation (DIF), such as:

• Decentralized Identifiers (DID)
• Verifiable Credentials (VC)
• Confidential Storage (EDV)
• Presentation Exchange (PE)

Open source components

Another critical succesfactor for adoption is the creation of open source for key SSI-components. Open source provides the required transparency for trust, enables other developers to build solutions and prevents vendor lock-in.

Sphereon provides several Open Source components on our Github, such as:

• DIF Presentation Exchange JavaScript library (pe-js)
• Self Issued OpenID Provider SIOPv2 library (did-auth-siop)
• Universal DID Registrar/Resolver client library (did-uni-client)
• DIF Presentation Exchange OpenAPI (pe-openapi)
• VC HTTP OpenAPI per W3C-CCG specification (vc-http-api)
• …