Struct AuditEntry 

pub struct AuditEntry {
    pub id: String,
    pub timestamp: DateTime<Utc>,
    pub event_type: String,
    pub actor: String,
    pub resource: Option<String>,
    pub action: String,
    pub outcome: AuditOutcome,
    pub metadata: Value,
    pub hmac_signature: Option<String>,
    pub previous_hmac: Option<String>,
}

Audit log entry.

Fields

id: String

Unique entry ID.

timestamp: DateTime<Utc>

Timestamp of the event.

event_type: String

Event type.

actor: String

Actor (user or system).

resource: Option<String>

Resource affected.

action: String

Action taken.

outcome: AuditOutcome

Outcome (success/failure).

metadata: Value

Additional metadata.

hmac_signature: Option<String>

HMAC signature of this entry (hex-encoded).

Computed as: HMAC-SHA256(key, id || timestamp || event_type || action || previous_hmac)

previous_hmac: Option<String>

HMAC of the previous entry in the chain (hex-encoded).

First entry in chain has previous_hmac = “genesis”.

Implementations

impl AuditEntry

pub fn new(event_type: impl Into<String>, action: impl Into<String>) -> Self

Creates a new audit entry for the current time.

pub fn canonical_string(&self, previous_hmac: &str) -> String

Computes the canonical string for HMAC signing.

Format: id|timestamp|event_type|action|previous_hmac

pub fn compute_hmac(&self, key: &[u8], previous_hmac: &str) -> Option<String>

Computes the HMAC signature for this entry.

Returns None if the HMAC key is invalid (should not happen with valid 32-byte keys).

pub fn sign(&mut self, key: &[u8], previous_hmac: &str) -> bool

Signs this entry with HMAC, setting both signature and previous hash.

Returns false if the HMAC key is invalid.

pub fn verify(&self, key: &[u8]) -> bool

Verifies this entry’s HMAC signature.

Returns true if the signature is valid, false otherwise.

pub fn with_actor(self, actor: impl Into<String>) -> Self

Sets the actor.

pub fn with_resource(self, resource: impl Into<String>) -> Self

Sets the resource.

pub const fn with_outcome(self, outcome: AuditOutcome) -> Self

Sets the outcome.

pub fn with_metadata(self, metadata: Value) -> Self

Sets metadata.

Trait Implementations

impl Clone for AuditEntry

fn clone(&self) -> AuditEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AuditEntry

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for AuditEntry

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for AuditEntry

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

where __S: Serializer,

Serialize this value into the given Serde serializer.