Struct MacKey 

pub struct MacKey(/* private fields */);

Cluster-wide symmetric MAC key.

The key is 32 bytes — HMAC-SHA256’s natural block-equivalent input. All legitimate cluster members hold the same value.

Implementations

impl MacKey

pub fn from_bytes(bytes: [u8; 32]) -> Self

Construct from raw bytes.

pub fn random() -> Self

A cryptographically random fresh key. Use at cluster bootstrap.

pub fn zero() -> Self

All-zero sentinel key used only by the Insecure transport mode. When the key is zero the MAC verification is decorative — the insecure mode already trusts any network peer.

pub fn as_bytes(&self) -> &[u8; 32]

Raw bytes. Used for persistence only; callers must treat the return value as key material.

pub fn is_zero(&self) -> bool

Whether this key is the all-zero sentinel. Insecure transports skip replay-detection telemetry accordingly.

Trait Implementations

impl Clone for MacKey

fn clone(&self) -> MacKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MacKey

Redacted Debug — never print key bytes.

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

Formats the value using the given formatter.