Struct TimeAttestation 

pub struct TimeAttestation {
    pub authority: String,
    pub artifact_hash: String,
    pub attested_at: DateTime<Utc>,
    pub external_anchor: Vec<u8>,
    pub signature: Vec<u8>,
}

A time authority’s attestation over an artifact.

Fields

authority: String

The time authority’s identifier.

artifact_hash: String

The artifact’s canonical payload hash (hex).

attested_at: DateTime<Utc>

When the authority attests the artifact existed.

external_anchor: Vec<u8>

The external anchor: serialized OpenTimestamps proof (or equivalent) binding the hash to an irrefutable time source.

signature: Vec<u8>

The time authority’s signature over the attestation body.

Implementations

impl TimeAttestation

pub fn signing_bytes(&self) -> SignatifResult<Vec<u8>>

The canonical signing bytes.

Errors

Propagates canonicalization errors.

pub fn verify( &self, authority_key: &[u8], verifier: &dyn SignatureVerifier, ) -> SignatifResult<()>

Verify the attestation: the authority’s signature, and that an external anchor is present (the anchor itself is verified against the time source by the OTS layer).

Errors

Signature or anchor errors.

pub fn freshness( &self, now: DateTime<Utc>, window: Duration, grace: Duration, ) -> TimeFreshness

Freshness against a window: fresh inside window, stale (downgrade) inside window + grace, rejected beyond.

Trait Implementations

impl Clone for TimeAttestation

fn clone(&self) -> TimeAttestation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TimeAttestation

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for TimeAttestation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for TimeAttestation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.