Struct PublicKey 

pub struct PublicKey { /* private fields */ }

PublicKey

Implementations

impl PublicKey

pub fn from_slice(slice: &[u8]) -> Result<PublicKey, Error>

Parse from bytes

pub fn from_hex<S>(hex: S) -> Result<PublicKey, Error>

where S: AsRef<str>,

Parse from hex string

pub fn to_bytes(&self) -> [u8; 33]

PublicKey to bytes

pub fn to_uncompressed_bytes(&self) -> [u8; 65]

To uncompressed bytes

pub fn x_only_public_key(&self) -> XOnlyPublicKey

To XOnlyPublicKey

pub fn to_hex(&self) -> String

Get public key as hex string

pub fn verify(&self, msg: &[u8], sig: &Signature) -> Result<(), Error>

Verify schnorr signature

Methods from Deref<Target = PublicKey>

pub fn cmp_fast_unstable(&self, other: &PublicKey) -> Ordering

Like cmp::Cmp but faster and with no guarantees across library versions.

The Cmp implementation for FFI types is stable but slow because it first serializes self and other before comparing them. This function provides a faster comparison if you know that your types come from the same library version.

pub fn eq_fast_unstable(&self, other: &PublicKey) -> bool

Like cmp::Eq but faster and with no guarantees across library versions.

The Eq implementation for FFI types is stable but slow because it first serializes self and other before comparing them. This function provides a faster equality check if you know that your types come from the same library version.

pub fn as_ptr(&self) -> *const PublicKey

👎Deprecated since 0.25.0:

Use Self::as_c_ptr if you need to access the FFI layer

Obtains a raw const pointer suitable for use with FFI functions.

pub fn serialize(&self) -> [u8; 33]

Serializes the key as a byte-encoded pair of values. In compressed form the y-coordinate is represented by only a single bit, as x determines it up to one bit.

pub fn serialize_uncompressed(&self) -> [u8; 65]

Serializes the key as a byte-encoded pair of values, in uncompressed form.

pub fn combine(&self, other: &PublicKey) -> Result<PublicKey, Error>

Adds a second key to this one, returning the sum.

Errors

If the result would be the point at infinity, i.e. adding this point to its own negation.

Examples

use secp256k1::{rand, Secp256k1};

let secp = Secp256k1::new();
let mut rng = rand::thread_rng();
let (_, pk1) = secp.generate_keypair(&mut rng);
let (_, pk2) = secp.generate_keypair(&mut rng);
let sum = pk1.combine(&pk2).expect("It's improbable to fail for 2 random public keys");

pub fn x_only_public_key(&self) -> (XOnlyPublicKey, Parity)

Returns the XOnlyPublicKey (and it’s Parity) for this PublicKey.

pub fn verify<C>( &self, secp: &Secp256k1<C>, msg: &Message, sig: &Signature, ) -> Result<(), Error>

where C: Verification,

Checks that sig is a valid ECDSA signature for msg using this public key.

Trait Implementations

impl Clone for PublicKey

fn clone(&self) -> PublicKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PublicKey

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

Formats the value using the given formatter.

impl Deref for PublicKey

type Target = PublicKey

The resulting type after dereferencing.

fn deref(&self) -> &<PublicKey as Deref>::Target

Dereferences the value.

impl<'de> Deserialize<'de> for PublicKey

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PublicKey

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

Formats the value using the given formatter.

impl From<PublicKey> for PublicKey

fn from(inner: PublicKey) -> PublicKey

Converts to this type from the input type.

impl FromStr for PublicKey

type Err = Error

The associated error which can be returned from parsing.

fn from_str(hex: &str) -> Result<PublicKey, <PublicKey as FromStr>::Err>

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

impl Hash for PublicKey

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 Ord for PublicKey

fn cmp(&self, other: &PublicKey) -> 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 PublicKey

fn eq(&self, other: &PublicKey) -> 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 PublicKey

fn partial_cmp(&self, other: &PublicKey) -> 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 PublicKey

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 PublicKey

impl Eq for PublicKey

impl StructuralPartialEq for PublicKey