Struct KeyExchangeKeypair 

pub struct KeyExchangeKeypair { /* private fields */ }

Key exchange keypair for X25519 Diffie-Hellman.

Implementations

impl KeyExchangeKeypair

pub fn generate() -> Self

Generate a new random keypair.

Example

use chie_crypto::keyexchange::KeyExchangeKeypair;

let keypair = KeyExchangeKeypair::generate();

pub fn from_bytes(secret_bytes: [u8; 32]) -> Self

Create a keypair from a secret key (32 bytes).

Arguments

• secret_bytes - 32-byte secret key

Example

use chie_crypto::keyexchange::KeyExchangeKeypair;

let secret = [1u8; 32];
let keypair = KeyExchangeKeypair::from_bytes(secret);

pub fn public_key(&self) -> &X25519PublicKey

Get the public key.

Returns

Reference to the X25519 public key.

pub fn public_key_bytes(&self) -> [u8; 32]

Get the public key as bytes.

Returns

32-byte array containing the public key.

Trait Implementations

impl KeyExchange for KeyExchangeKeypair

fn exchange(&self, their_public: &X25519PublicKey) -> SharedSecret

Perform X25519 Diffie-Hellman key exchange.

Arguments

• their_public - The other party’s public key

Returns

Shared secret derived from the key exchange.

Example

use chie_crypto::keyexchange::{KeyExchange, KeyExchangeKeypair};

let alice = KeyExchangeKeypair::generate();
let bob = KeyExchangeKeypair::generate();

let shared = alice.exchange(bob.public_key());