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DIDComm messaging

DIDComm Messaging is a core component of the self-sovereign identity (SSI) ecosystem. It is a secure messaging protocol that facilitates information exchange between identity holders and verifiers.

When an identity holder possesses a Verifiable Credential in their digital wallet, they may need to share it with a verifier to complete a transaction or agreement. DIDComm Messaging allows for selective disclosure, ensuring that only the necessary information is shared, thereby maintaining privacy and minimizing data exposure.

DIDComm Messaging establishes secure communication by enabling identity holders to resolve a verifier's Decentralized Identifier (DID) and set up a trusted channel for information exchange. This ensures confidentiality, integrity, and authenticity throughout the communication process.

Key benefits of DIDComm messaging​

  • Enhanced Security: Ensures that all communication is encrypted, preserving the confidentiality and integrity of the exchanged data.
  • Privacy-Preserving: Allows for selective disclosure, where only the necessary information is shared, minimizing the exposure of personal data.
  • Interoperability: Supports a range of SSI solutions and can operate across different platforms and services.
  • Decentralized Trust: Removes the need for a central authority, allowing direct peer-to-peer communication between parties.

Use cases for DIDComm messaging​

  1. Credential Verification: An identity holder can securely share a verifiable credential with a verifier, such as proving age for purchasing restricted goods without revealing additional personal information.

  2. Secure Communication: Organizations can use DIDComm Messaging to establish trusted channels for secure communication, such as in financial transactions, healthcare data exchanges, or any scenario requiring verified digital identity.

Further reading​