Struct ExtendedPrivKey

pub struct ExtendedPrivKey {
    pub network: Network,
    pub depth: u8,
    pub parent_fingerprint: Fingerprint,
    pub child_number: ChildNumber,
    pub private_key: SecretKey,
    pub chain_code: ChainCode,
}

Extended private key

Fields

network: Network

The network this key is to be used on

depth: u8

How many derivations this key is from the master (which is 0)

parent_fingerprint: Fingerprint

Fingerprint of the parent key (0 for master)

child_number: ChildNumber

Child number of the key used to derive from parent (0 for master)

private_key: SecretKey

Private key

chain_code: ChainCode

Chain code

Implementations

impl ExtendedPrivKey

pub fn new_master( network: Network, seed: &[u8], ) -> Result<ExtendedPrivKey, Error>

Construct a new master key from a seed value

pub fn to_priv(self) -> PrivateKey

Constructs ECDSA compressed private key matching internal secret key representation.

pub fn to_keypair<C>(self, secp: &Secp256k1<C>) -> KeyPair

where C: Signing,

Constructs BIP340 keypair for Schnorr signatures and Taproot use matching the internal secret key representation.

pub fn derive_priv<C, P>( &self, secp: &Secp256k1<C>, path: &P, ) -> Result<ExtendedPrivKey, Error>

where C: Signing, P: AsRef<[ChildNumber]>,

Attempts to derive an extended private key from a path.

The path argument can be both of type DerivationPath or Vec<ChildNumber>.

pub fn ckd_priv<C>( &self, secp: &Secp256k1<C>, i: ChildNumber, ) -> Result<ExtendedPrivKey, Error>

where C: Signing,

Private->Private child key derivation

pub fn decode(data: &[u8]) -> Result<ExtendedPrivKey, Error>

Decoding extended private key from binary data according to BIP 32

pub fn encode(&self) -> [u8; 78]

Extended private key binary encoding according to BIP 32

pub fn identifier<C>(&self, secp: &Secp256k1<C>) -> XpubIdentifier

where C: Signing,

Returns the HASH160 of the public key belonging to the xpriv

pub fn fingerprint<C>(&self, secp: &Secp256k1<C>) -> Fingerprint

where C: Signing,

Returns the first four bytes of the identifier

Trait Implementations

impl Clone for ExtendedPrivKey

fn clone(&self) -> ExtendedPrivKey

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtendedPrivKey

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

Formats the value using the given formatter.

impl Display for ExtendedPrivKey

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

Formats the value using the given formatter.

impl FromStr for ExtendedPrivKey

type Err = Error

The associated error which can be returned from parsing.

fn from_str(inp: &str) -> Result<ExtendedPrivKey, Error>

Parses a string s to return a value of this type.

impl PartialEq for ExtendedPrivKey

fn eq(&self, other: &ExtendedPrivKey) -> 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 Copy for ExtendedPrivKey

impl Eq for ExtendedPrivKey

impl StructuralPartialEq for ExtendedPrivKey