Struct SharedSecret 

pub struct SharedSecret { /* private fields */ }

Raw shared secret from X25519 key exchange

This should be processed through HKDF to derive the actual session key. Never use the raw shared secret directly for encryption.

Implementations

impl SharedSecret

pub fn derive_session_key( &self, our_node_id: NodeId, peer_node_id: NodeId, ) -> PeerSessionKey

Derive a session key for peer E2EE communication

Uses HKDF-SHA256 with the node IDs as salt to bind the key to this specific peer pair. The node IDs are sorted to ensure both peers derive the same key regardless of who initiated.

Arguments

• our_node_id - Our node identifier
• peer_node_id - Peer’s node identifier

Returns

A 32-byte session key suitable for ChaCha20-Poly1305

Trait Implementations

impl Debug for SharedSecret

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

Formats the value using the given formatter.