Struct VcEmulation 

pub struct VcEmulation {
    pub epoch_id: EpochId,
}

Available on crate feature extensions-draft-08 and crate feature virtual-clients-draft and (32-bit or 64-bit) only.

Per-commit virtual-clients material that the application supplies to CommitBuilder::vc_emulation when sending a commit on a virtual-clients group.

The PPRF, per-epoch AEAD key, and the registering client’s emulation-group leaf index live in the storage provider — the application registers them once per emulation epoch via MlsGroup::register_vc_emulation_epoch, which sources the per-emulation-epoch root secret from the emulation group’s safe_export_secret(VC_COMPONENT_ID). When creating a commit, the application supplies just the epoch_id; the library hashes (stored leaf_index, fresh random) to produce the PPRF input, evaluates the PPRF, and persists the punctured state.

The leaf carrying a VC commit must declare ExtensionType::AppDataDictionary in its capabilities and must include an AppComponents entry (component id 1) listing VC_COMPONENT_ID in its AppDataDictionary extension; otherwise the sender pre-check rejects the commit with VirtualClientsError::AppDataDictionaryNotSupported or VirtualClientsError::VcComponentNotListed.

Fields

epoch_id: EpochId

Identifier of the emulation epoch whose registered PPRF + AEAD key the library should use for this commit.

Trait Implementations

impl Debug for VcEmulation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.