Module identity 

RFC 8224 authentication and verification services.

Supported (S-34): outbound and inbound call policies select these services through sipx-call, which constrains their public shape. sipx remains pre-1.0, so Supported does not mean frozen; breaking changes receive a migration note.

Network retrieval and trust remain caller-owned. This module only orders policy decisions, supplies a bounded cache, and maps verification failures to their specified SIP statuses.

Structs

AuthenticationService

RFC 8224 §6.1 authentication service.

CachedCredentials

A bounded successful-credential cache in front of a caller’s fetcher.

Freshness

Maximum accepted absolute clock skew.

SigningCredential

An application-owned signing credential.

VerificationCredential

A verification credential already interpreted and trusted by caller policy.

VerificationService

RFC 8224 §6.2 verification service.

Enums

AuthenticationError

Authentication-service failure before an Identity field could be added.

CredentialError

Caller-owned credential acquisition outcome.

Verification

Successful verification state.

VerificationFailure

Verification-service failure with its RFC 8224 §6.2.2 status.

Traits

Authority

Local policy deciding which originating identities may be asserted.

CredentialFetcher

Caller-supplied info URI acquisition and authority policy.