Struct PublicKey 

pub struct PublicKey { /* private fields */ }

Public key for ECDSA signature verification over secp256k1 curve.

Implementations

impl PublicKey

pub fn to_commitment(&self) -> Word

Returns a commitment to the public key using the Poseidon2 hash function.

Public key serialization remains compressed SEC1. The commitment preimage is not the compressed SEC1 encoding; it is qx || qy, where each secp256k1 affine coordinate is represented as eight little-endian numeric u32 limbs, one limb per Felt.

pub fn as_affine(&self) -> &AffinePoint

Returns a reference to this public key as an elliptic curve point in affine coordinates.

pub fn verify(&self, message: Word, signature: &Signature) -> bool

Verifies a signature against this public key and message.

pub fn verify_prehash( &self, message_digest: [u8; 32], signature: &Signature, ) -> bool

Verifies a signature against this public key and pre-hashed message.

pub fn recover_from( message: Word, signature: &Signature, ) -> Result<PublicKey, PublicKeyError>

Recovers from the signature the public key associated to the secret key used to sign the message.

pub fn from_der(bytes: &[u8]) -> Result<PublicKey, DeserializationError>

Creates a public key from SPKI ASN.1 DER format bytes.

Arguments

• bytes - SPKI ASN.1 DER format bytes

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 Deserializable for PublicKey

fn read_from<R>(source: &mut R) -> Result<PublicKey, DeserializationError>

where R: ByteReader,

Reads a sequence of bytes from the provided source, attempts to deserialize these bytes into Self, and returns the result.

fn min_serialized_size() -> usize

Returns the minimum serialized size for one instance of this type.

fn read_from_bytes(bytes: &[u8]) -> Result<Self, DeserializationError>

Attempts to deserialize the provided bytes into Self and returns the result.

fn read_from_bytes_with_budget( bytes: &[u8], budget: usize, ) -> Result<Self, DeserializationError>

Deserializes Self from bytes with a byte budget limit.

impl Display for PublicKey

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

Formats the value using the given formatter.

impl Eq for PublicKey

impl From<PublicKey> for PublicKeyCommitment

fn from(value: PublicKey) -> PublicKeyCommitment

Converts to this type from the input type.

impl PartialEq for PublicKey

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

Equality operator ==.

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

Inequality operator !=.

impl SequentialCommit for PublicKey

type Commitment = Word

A type of the commitment which must be derivable from Word.

fn to_elements(&self) -> Vec<Felt>

Returns a representation of the object as a sequence of fields elements.

fn to_commitment(&self) -> Self::Commitment

Computes the commitment to the object.

impl Serializable for PublicKey

fn write_into<W>(&self, target: &mut W)

where W: ByteWriter,

Serializes self into bytes and writes these bytes into the target.

fn to_bytes(&self) -> Vec<u8>

Serializes self into a vector of bytes.

fn get_size_hint(&self) -> usize

Returns an estimate of how many bytes are needed to represent self.

impl StructuralPartialEq for PublicKey