Struct MultiDeviceTransport 

pub struct MultiDeviceTransport { /* private fields */ }

Transport state for multi-device Noise protocol

This wraps transport keys extracted from the handshake and provides custom encryption/decryption with random nonces and timestamp-based replay protection.

Nonces

Nonces are randomly generated for each message. A buffer to protect against replay attacks is maintained. Nonces older than MAX_MESSAGE_AGE are pruned periodically. Note: These are stored separately from the persistent device transport state and can be accessed via seen_nonces() and set_seen_nonces().

Implementations

impl MultiDeviceTransport

Convenience functions for direct transport serialization

pub fn save_state(&self) -> Result<Vec<u8>, NoiseProtocolError>

Serialize transport state to CBOR bytes

pub fn restore_state( bytes: &[u8], ) -> Result<MultiDeviceTransport, NoiseProtocolError>

Restore transport state from CBOR bytes

impl MultiDeviceTransport

pub fn seen_nonces(&self) -> Vec<u8>

Get a serialized view of seen nonces for persistence

pub fn set_seen_nonces(&mut self, data: &[u8]) -> Result<(), NoiseProtocolError>

Set seen nonces from persisted data

pub fn ciphersuite(&self) -> Ciphersuite

Get ciphersuite

pub fn encrypt( &mut self, plaintext: &[u8], ) -> Result<TransportPacket, NoiseProtocolError>

Encrypt plaintext into a transport packet

Uses a random nonce with current timestamp for replay protection.

pub fn decrypt( &mut self, packet: &TransportPacket, ) -> Result<Vec<u8>, NoiseProtocolError>

Decrypt a transport packet

pub fn send_rekey_counter(&self) -> u64

Get send rekey counter for persistence

pub fn recv_rekey_counter(&self) -> u64

Get receive rekey counter for persistence

pub fn last_rekeyed_time(&self) -> u64

Get last rekeyed timestamp for persistence

pub fn rekey_interval(&self) -> u64

Get rekey interval for persistence

pub fn keys(&self) -> (SymmetricKey, SymmetricKey)

Get transport keys for persistence

Trait Implementations

impl Clone for MultiDeviceTransport

fn clone(&self) -> MultiDeviceTransport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MultiDeviceTransport

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

Formats the value using the given formatter.

impl From<PersistentTransportState> for MultiDeviceTransport

fn from(state: PersistentTransportState) -> MultiDeviceTransport

Converts to this type from the input type.