Struct CheckpointClaim 

pub struct CheckpointClaim {
    pub checkpoint_id: Uuid,
    pub head: [u8; 32],
    pub entry_count: u64,
    pub head_event_id: Uuid,
    pub checkpoint_at: DateTime<Utc>,
    pub prev_checkpoint: Option<[u8; 32]>,
    pub verification_method: String,
}

Everything a checkpoint commits to, except the signature itself.

Split out so AuditCheckpoint::sign and AuditCheckpoint::verify_signature cannot disagree about what is signed — the classic way a signature scheme ends up covering less than it appears to.

Fields

checkpoint_id: Uuid

head: [u8; 32]

entry_count: u64

head_event_id: Uuid

checkpoint_at: DateTime<Utc>

prev_checkpoint: Option<[u8; 32]>

verification_method: String

Implementations

impl CheckpointClaim

pub fn signing_payload(&self) -> Vec<u8>

The exact bytes an Ed25519 signature covers.

Length-prefixed and domain-tagged rather than a JSON encoding: the signature must not depend on serializer field ordering or on a canonicalisation step that could differ between signer and verifier. Same reasoning as the envelope’s chain_digest.

Trait Implementations

impl Clone for CheckpointClaim

fn clone(&self) -> CheckpointClaim

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CheckpointClaim

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

Formats the value using the given formatter.

impl Eq for CheckpointClaim

impl PartialEq for CheckpointClaim

fn eq(&self, other: &CheckpointClaim) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CheckpointClaim