Module presentation

Verifiable presentation.

We borrow the term “presentation” from the W3C Verifiable Credentials Data Model.

Data derived from one or more verifiable credentials, issued by one or more issuers, that is shared with a specific verifier. A verifiable presentation is a tamper-evident presentation encoded in such a way that authorship of the data can be trusted after a process of cryptographic verification. Certain types of verifiable presentations might contain data that is synthesized from, but do not contain, the original verifiable credentials (for example, zero-knowledge proofs).

Instead of a credential, a presentation in this context is a proof of an attestation from a Notary along with additional selectively disclosed information about the TLS connection such as the server’s identity and the application data communicated with the server.

A presentation is self-contained and can be verified by a Verifier without needing access to external data. The Verifier need only check that the key used to sign the attestation, referred to as a VerifyingKey, is from a Notary they trust. See an example in the crate level documentation.

Structs

• Presentation
  A verifiable presentation.
• PresentationBuilder
  Builder for Presentation.
• PresentationBuilderError
  Error for PresentationBuilder.
• PresentationError
  Error for Presentation.
• PresentationOutput
  Output of a verified Presentation.