Struct PublicKey 

pub struct PublicKey { /* private fields */ }

Public key wrapper with algorithm identification

This structure provides a generic wrapper for public keys from any supported digital signature algorithm (currently Ed25519). The key includes a 1-byte algorithm identifier prefix that enables automatic algorithm detection.

Structure

• 1 byte: Algorithm identifier (e.g., ‘E’ for Ed25519)
• N bytes: Public key bytes (length depends on algorithm)

Features

• Algorithm agnostic: Works with any DSA implementation
• Automatic detection: Algorithm is detected from the identifier byte
• Serialization: Supports Base64, Borsh, and Serde JSON serialization
• Verification: Direct signature verification without needing the algorithm type

Example

use ave_identity::keys::{KeyPair, KeyPairAlgorithm, DSAlgorithm};

// Generate a keypair and extract public key
let keypair = KeyPair::generate(KeyPairAlgorithm::Ed25519).unwrap();
let public_key = keypair.public_key();

// Check the algorithm
assert_eq!(public_key.algorithm(), DSAlgorithm::Ed25519);

// Get raw bytes (32 bytes for Ed25519)
let key_bytes = public_key.as_bytes();
assert_eq!(key_bytes.len(), 32);

// Serialize to string with algorithm identifier
let key_str = public_key.to_string();
println!("Public key: {}", key_str);

Implementations

impl PublicKey

pub fn new( algorithm: DSAlgorithm, key_bytes: Vec<u8>, ) -> Result<Self, CryptoError>

Create a new public key

pub fn algorithm(&self) -> DSAlgorithm

Get the algorithm

pub fn as_bytes(&self) -> &[u8]

Get the key bytes (without identifier)

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

Get the full bytes including algorithm identifier

pub fn from_bytes(bytes: &[u8]) -> Result<Self, CryptoError>

Parse from bytes (includes algorithm identifier)

pub fn verify( &self, message: &[u8], signature: &SignatureIdentifier, ) -> Result<(), CryptoError>

Verify a signature with this public key

pub fn is_empty(&self) -> bool

Check if this is an empty public key (created via Default)

Returns true if the key bytes are empty, which indicates this public key was created using Default::default().

Trait Implementations

impl BorshDeserialize for PublicKey

fn deserialize_reader<__R: Read>(reader: &mut __R) -> Result<Self, Error>

fn deserialize(buf: &mut &[u8]) -> Result<Self, Error>

Deserializes this instance from a given slice of bytes. Updates the buffer to point at the remaining bytes.

fn try_from_slice(v: &[u8]) -> Result<Self, Error>

Deserialize this instance from a slice of bytes.

fn try_from_reader<R>(reader: &mut R) -> Result<Self, Error>

where R: Read,

impl BorshSerialize for PublicKey

fn serialize<__W: Write>(&self, writer: &mut __W) -> Result<(), Error>

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

Formats the value using the given formatter.

impl Default for PublicKey

fn default() -> Self

Returns the “default value” for a type.

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

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PublicKey

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

Formats the value using the given formatter.

impl FromStr for PublicKey

type Err = CryptoError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

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

impl Hash for PublicKey

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

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::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for PublicKey

impl StructuralPartialEq for PublicKey