Verifiable Health Links
1.0.0-comment - ballot

Verifiable Health Links - Downloaded Version 1.0.0-comment See the Directory of published versions

## Requirements: Initiate Retrieve Trust List Request

Official URL: https://profiles.ihe.net/ITI/VHL/Requirements/InitiateRetrieveTrustListRequest | Version: 1.0.0-comment
Active as of 2026-06-14 | Computable Name: InitiateRetrieveTrustListRequest

A VHL Sharer or VHL Receiver, as a participant in the trust network, SHALL be capable of retrieving public key infrastructure (PKI) material from a designated Trust Anchor.

The retrieved material MAY include:

- Public key certificates and associated trust lists
- Certificate revocation data (e.g., CRLs, OCSP responses)
- Metadata used to:
  - Validate digital signatures on VHLs and related resources
  - Establish secure connections
  - Decrypt content protected via asymmetric encryption

Participants SHOULD cache the received trust list to reduce network and server load.

Preconditions:

- The requesting participant knows in advance the endpoint from which to retrieve PKI material, as published or distributed by the Trust Anchor.

These requirements apply to the following actors:

- VHL Sharer
- VHL Receiver

These requirements derive from Establish Trust