Struct CidChain 

pub struct CidChain { /* private fields */ }

Per-direction, session-stable rotating-CID chain secrets. outbound_secret is the chain this peer stamps its outbound ConnId from (the peer routes on it); inbound_secret is the chain this peer routes inbound ConnIds on. Derived once from the initial session secret; zeroized on drop.

Implementations

impl CidChain

pub fn derive(initial_secret: &[u8; 32], is_server: bool) -> Self

Derive the per-direction CID-chain secrets from the initial session secret. is_server swaps outbound/inbound so one peer’s outbound chain equals the other peer’s inbound chain (mirrors HeaderProtector::derive).

pub fn outbound_cid(&self, i: u64) -> [u8; 8]

The CID this peer stamps on its outbound envelope at migration index i.

pub fn inbound_cid(&self, i: u64) -> [u8; 8]

The CID this peer routes an inbound envelope on at migration index i.

pub fn inbound_window( &self, highest_seen: u64, trailing: u64, leading: u64, ) -> impl Iterator<Item = (u64, [u8; 8])> + '_

The inbound demux window [highest_seen − trailing, highest_seen + leading] (saturating at index 0), each index paired with the CID it routes on. Pure — the stateful slide lives in the demux (P4).

Trait Implementations

impl Drop for CidChain

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.