Struct monero::cryptonote::onetime_key::KeyGenerator

pub struct KeyGenerator {
    pub spend: PublicKey,
    pub rv: PublicKey,
}

Helper to generate One-Time Public keys (ephemeral keys) in transactions

Fields

spend: PublicKey

Spend public key S

rv: PublicKey

Intermediate key v*8*R or r*8*V used during the generation process

Methods

impl KeyGenerator

pub fn from_random(
    view: PublicKey,
    spend: PublicKey,
    random: PrivateKey
) -> Self

Construct a One-time key generator from public keys and secret random, this is used to generate One-time keys for output indexes from an address when sending funds

pub fn from_key(keys: &ViewPair, random: PublicKey) -> Self

Construct a One-time key generator from private keys and public random (tx pubkey), this is used to scan if some outputs contains One-time keys owned by the view pair

pub fn one_time_key(&self, index: usize) -> PublicKey

Compute the One-time public key P = Hn(r*8*V || n)*G + S for the indexed output n

pub fn check(&self, index: usize, key: PublicKey) -> bool

Check if key P is equal to indexed key P', if true the output is own by the address, used when scanning transaction outputs, if true the One-time key is related to the keys

pub fn get_rvn_scalar(&self, index: usize) -> PrivateKey

Computes Hn(v*8*R || n) and interpret it as a scalar

Trait Implementations

impl Clone for KeyGenerator

fn clone(&self) -> KeyGenerator

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for KeyGenerator

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

Formats the value using the given formatter.