Struct ReplayWindow 

pub struct ReplayWindow { /* private fields */ }

Available on crate feature crypto only.

Anti-replay sliding window.

Per 1-SECURITY.md:

• Window size: 2048 bits minimum
• Below window: MUST reject
• Seen nonce: MUST reject
• Above highest: Update window

Implementations

impl ReplayWindow

pub fn new() -> Self

Create a new replay window.

pub fn is_replay(&self, nonce: u64) -> bool

Check if a nonce is a replay (without updating).

pub fn check_and_update(&mut self, nonce: u64) -> Result<(), CryptoError>

Check if a nonce is a replay and update the window.

Returns Ok(()) if the nonce is valid (not seen before). Returns Err(ReplayDetected) if the nonce is a replay.

Per 1-SECURITY.md, replay check MUST occur BEFORE AEAD verification.

pub fn reset(&mut self)

Reset the window (e.g., after rekey).

Trait Implementations

impl Default for ReplayWindow

fn default() -> Self

Returns the “default value” for a type.