Struct Xpub 

pub struct Xpub {
    pub network: NetworkKind,
    pub depth: u8,
    pub parent_fingerprint: Fingerprint,
    pub child_number: ChildNumber,
    pub public_key: PublicKey,
    pub chain_code: ChainCode,
}

Extended public key

Fields

network: NetworkKind

The network kind 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

child_number: ChildNumber

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

public_key: PublicKey

Public key

chain_code: ChainCode

Chain code

Implementations

impl Xpub

pub fn from_priv<C>(secp: &Secp256k1<C>, sk: &Xpriv) -> Xpub

where C: Signing,

Derives a public key from a private key

pub fn to_pub(self) -> CompressedPublicKey

Constructs ECDSA compressed public key matching internal public key representation.

pub fn to_x_only_pub(self) -> XOnlyPublicKey

Constructs BIP340 x-only public key for BIP-340 signatures and Taproot use matching the internal public key representation.

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

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

Attempts to derive an extended public key from a path.

The path argument can be any type implementing AsRef<ChildNumber>, such as DerivationPath, for instance.

pub fn ckd_pub_tweak( &self, i: ChildNumber, ) -> Result<(SecretKey, ChainCode), Error>

Compute the scalar tweak added to this key to get a child key

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

where C: Verification,

Public->Public child key derivation

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

Decoding extended public key from binary data according to BIP 32

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

Extended public key binary encoding according to BIP 32

pub fn identifier(&self) -> XKeyIdentifier

Returns the HASH160 of the chaincode

pub fn fingerprint(&self) -> Fingerprint

Returns the first four bytes of the identifier

Trait Implementations

impl Clone for Xpub

fn clone(&self) -> Xpub

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Xpub

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

Formats the value using the given formatter.

impl<Ctx> DerivableKey<Ctx> for Xpub

where Ctx: ScriptContext,

fn into_extended_key(self) -> Result<ExtendedKey<Ctx>, KeyError>

Consume self and turn it into an ExtendedKey This can be used to get direct access to xprvs and xpubs for types that implement this trait, like Mnemonic when the keys-bip39 feature is enabled.

fn into_descriptor_key( self, origin: Option<(Fingerprint, DerivationPath)>, derivation_path: DerivationPath, ) -> Result<DescriptorKey<Ctx>, KeyError>

Consume self and turn it into a DescriptorKey by adding the extra metadata, such as key origin and derivation path

impl<'de> Deserialize<'de> for Xpub

fn deserialize<D>( deserializer: D, ) -> Result<Xpub, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Xpub

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

Formats the value using the given formatter.

impl From<&Xpub> for XKeyIdentifier

fn from(key: &Xpub) -> XKeyIdentifier

Converts to this type from the input type.

impl<Ctx> From<Xpub> for ExtendedKey<Ctx>

where Ctx: ScriptContext,

fn from(xpub: Xpub) -> ExtendedKey<Ctx>

Converts to this type from the input type.

impl From<Xpub> for XKeyIdentifier

fn from(key: Xpub) -> XKeyIdentifier

Converts to this type from the input type.

impl FromStr for Xpub

type Err = Error

The associated error which can be returned from parsing.

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

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

impl Hash for Xpub

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl InnerXKey for Xpub

fn xkey_fingerprint<C>(&self, _secp: &Secp256k1<C>) -> Fingerprint

where C: Signing,

Returns the fingerprint of the key

fn can_derive_hardened() -> bool

Returns whether hardened steps can be derived on the key

impl Ord for Xpub

fn cmp(&self, other: &Xpub) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Xpub

fn eq(&self, other: &Xpub) -> 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 PartialOrd for Xpub

fn partial_cmp(&self, other: &Xpub) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Xpub

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Xpub

impl Eq for Xpub

impl StructuralPartialEq for Xpub