Struct NetworkMetaKey 

pub struct NetworkMetaKey(pub [u8; 32]);

32-byte symmetric key shared by all nodes in a given network.

This key is a randomly generated secret — it is never derived from the network name. It is stored locally in network_keys.json and distributed to new members exclusively via signed+encrypted invite tokens.

Used to encrypt/decrypt file metadata (names, …) stored in manifests.

Tuple Fields

0: [u8; 32]

Implementations

impl NetworkMetaKey

pub fn generate() -> Self

Generate a new random 32-byte network key.

Call once when creating a network. The key must then be distributed via invite tokens to all other members.

pub fn load(network_id: &str) -> BpResult<Option<Self>>

Load the key for network_id from local storage.

Returns None if this node has never joined that network (i.e. no key has been stored yet).

pub fn save(&self, network_id: &str) -> BpResult<()>

Persist this key for network_id to local storage.

Safe to call multiple times — overwrites an existing entry for the same network_id. Never logs or surfaces the key bytes.

pub fn load_or_create(network_id: &str) -> BpResult<Self>

Load the key for network_id, generating and saving a new one if absent.

This is the production entry point used by the daemon when it joins or creates a network.

pub fn encrypt(&self, plaintext: &[u8]) -> Vec<u8>

Encrypt plaintext and return an authenticated ciphertext blob.

Format: nonce(16) || mac(32) || ciphertext.

pub fn decrypt(&self, blob: &[u8]) -> BpResult<Vec<u8>>

Decrypt and authenticate a blob produced by encrypt.

Returns the plaintext or an error if the MAC is invalid or the blob is too short.

Trait Implementations

impl Clone for NetworkMetaKey

fn clone(&self) -> NetworkMetaKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NetworkMetaKey

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

Formats the value using the given formatter.

impl PartialEq for NetworkMetaKey

fn eq(&self, other: &NetworkMetaKey) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for NetworkMetaKey

impl StructuralPartialEq for NetworkMetaKey