Struct FreshnessContract 

pub struct FreshnessContract {
    pub domain: String,
    pub signature_hash: Option<String>,
    pub captured_at_epoch_ms: u64,
    pub max_age: Duration,
    pub policy_kind: FreshnessPolicyKind,
    pub domain_class: DomainClass,
}

A freshness contract describing the origin and constraints of an identity artifact.

Capture time, target domain, optional signature hash, and the resolved max-age are all bound at the point of capture so a later check can detect any of:

• TTL expiration (now - captured_at > max_age)
• Signature rotation (signature field mismatch)
• Domain rebinding (domain field mismatch)

Fields

domain: String

Lower-cased host the contract was bound to (e.g. "example.com").

signature_hash: Option<String>

Optional opaque signature hash (e.g. "sha256:abc…") the contract was bound to. None when signatures are not used.

captured_at_epoch_ms: u64

Unix epoch milliseconds when the contract was captured.

max_age: Duration

Resolved max-age for this contract.

policy_kind: FreshnessPolicyKind

Policy band used to resolve max_age.

domain_class: DomainClass

Domain class used to resolve max_age.

Implementations

impl FreshnessContract

pub fn with_signature( domain: &str, signature: &str, captured_at_epoch_ms: u64, max_age: Duration, policy_kind: FreshnessPolicyKind, ) -> Result<Self, FreshnessError>

Build a contract with explicit fields.

Errors

Returns FreshnessError::InvalidContract when domain is empty after trimming, when max_age is zero, or when signature is provided but empty.

pub fn without_signature( domain: &str, captured_at_epoch_ms: u64, max_age: Duration, policy_kind: FreshnessPolicyKind, ) -> Result<Self, FreshnessError>

Build a contract without a signature.

Errors

Returns FreshnessError::InvalidContract when domain is empty after trimming or when max_age is zero.

pub fn capture_now( domain: &str, signature: Option<&str>, max_age: Duration, policy_kind: FreshnessPolicyKind, ) -> Result<Self, FreshnessError>

Convenience constructor that captures the current wall-clock.

Errors

See Self::with_signature.

pub const fn max_age_ms(&self) -> u64

Resolved max-age in milliseconds.

Trait Implementations

impl Clone for FreshnessContract

fn clone(&self) -> FreshnessContract

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FreshnessContract

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for FreshnessContract

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for FreshnessContract

impl PartialEq for FreshnessContract

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for FreshnessContract

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for FreshnessContract