# Initiate Retrieve Trust List Request - Verifiable Health Link v0.0.2-current

* [**Table of Contents**](toc.md)
* [**Artifacts Summary**](artifacts.md)
* **Initiate Retrieve Trust List Request**

## Requirements: Initiate Retrieve Trust List Request 

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| *Official URL*:https://profiles.ihe.net/ITI/VHL/Requirements/InitiateRetrieveTrustListRequest | *Version*:0.0.2-current |
| Active as of 2026-03-12 | *Computable Name*:InitiateRetrieveTrustListRequest |

 
A [VHL Sharer](ActorDefinition-VHLSharer.md) or [VHL Receiver](ActorDefinition-VHLReceiver.md), as a participant in the trust network, SHALL be capable of retrieving public key infrastructure (PKI) material from a designated [Trust Anchor](ActorDefinition-TrustAnchor.md). 
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.
 

* Publisher: Contact Email
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): No contact email has been registered.
* Publisher: Jurisdiction
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): 
* Publisher: Statements
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): 
* Publisher: Derived from
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): * [Establish Trust](Requirements-EstablishTrust.md)

* Publisher: Derivatives
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): This requirement has the following derivatives:
* Publisher: Participating Actors
  * [IHE IT Infrastructure Technical Committee](https://www.ihe.net/ihe_domains/it_infrastructure/): * [VHL Sharer](ActorDefinition-VHLSharer.md)
* [VHL Receiver](ActorDefinition-VHLReceiver.md)


