Struct HashChain 

pub struct HashChain { /* private fields */ }

The append-only, hash-chained audit ledger of a Governed Execution Environment. Every decision (allow, deny, require-approval) is linked to the one before it, so any retrospective modification of a record breaks the chain at verify().

Implementations

impl HashChain

pub fn new() -> Self

pub fn append(&mut self, record: DecisionRecord) -> u64

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

pub fn records(&self) -> Vec<DecisionRecord>

pub fn last_record(&self) -> Option<&DecisionRecord>

pub fn entries(&self) -> &[AuditEntry]

pub fn recent(&self, n: usize) -> Vec<DecisionRecord>

pub fn tip_hex(&self) -> String

Hex-encoded SHA-1 hash of the latest entry in the chain.

pub fn verify(&self) -> bool

Recompute every link from the genesis hash; returns false on the first entry whose hash does not match its claimed predecessor (tamper proof).

Trait Implementations

impl Clone for HashChain

fn clone(&self) -> HashChain

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HashChain

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

Formats the value using the given formatter.

impl Default for HashChain

fn default() -> HashChain

Returns the “default value” for a type.

impl From<&HashChain> for Vec<DecisionRecord>

fn from(c: &HashChain) -> Self

Converts to this type from the input type.

impl Serialize for HashChain

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

where __S: Serializer,

Serialize this value into the given Serde serializer.