SSIComms

SSIComms is a technical project that integrates Self-Sovereign Identity capabilities into internet communications by combining SIP (Session Initiation Protocol) with DIDComm messaging. The core implementation, SSI-Call, is built on top of the SYLK Suite communications framework and enables users to exchange verified identity information during real-time communication sessions.

The system utilizes several key technical standards and protocols:

• W3C Verifiable Credentials for identity attestations
• DIDComm for secure messaging between parties
• SIP for managing communication sessions
• Out-of-band DIDComm messages for credential exchange

Developed through a collaboration between Bloqzone, Animo.id, and AG-projects with funding from the NGI eSSIF-Lab program, SSIComms received a €155,000 grant from the European Union's Horizon 2020 research program. The project is open-source and implements a modular architecture that allows developers to integrate their own SSI wallets with the enhanced SYLK Suite React Native client. Key features include:

• Secure identity verification before and during sessions
• Peer-to-peer credential verification
• Support for payment token exchange during active sessions
• Integration with existing W3C DID infrastructure

Notable implementations include the SSI-Call mobile application which demonstrates the practical application of combining identity and communications protocols in a user-friendly interface.