Struct VerifyingKey

pub struct VerifyingKey<T: LamportDigest> { /* private fields */ }

A one-time signing public key.

In general, a public key is generated by the paired SigningKey or [generate_keys] function.

Implementations

impl<T: LamportDigest> VerifyingKey<T>

pub fn from_bytes<B: AsRef<[u8]>>(input: B) -> LamportResult<VerifyingKey<T>>

Constructs a VerifyingKey from the byte sequence

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

Converts the inner key data into a linearized vector.

Example

use sha2::Sha256;
use rand::SeedableRng;
use rand_chacha::ChaCha12Rng;
use lamport_signature_plus::{VerifyingKey, SigningKey, LamportFixedDigest};

const SEED: [u8; 32] = [0; 32];
let mut rng = ChaCha12Rng::from_seed(SEED);
let secret_key = SigningKey::<LamportFixedDigest<Sha256>>::random(&mut rng);
let public_key = VerifyingKey::from(&secret_key);
assert!(public_key.to_bytes().len() == 32 * 256 * 2);

pub fn verify<B: AsRef<[u8]>>( &self, signature: &Signature<T>, data: B, ) -> LamportResult<()>

Verifies the Signature.

Example

use sha2::Sha256;
use rand::SeedableRng;
use rand_chacha::ChaCha12Rng;
use lamport_signature_plus::{LamportFixedDigest, SigningKey, VerifyingKey};

const SEED: [u8; 32] = [0; 32];
let mut rng = ChaCha12Rng::from_seed(SEED);
let mut private_key = SigningKey::<LamportFixedDigest<Sha256>>::random(rng);
let public_key = VerifyingKey::from(&private_key);

const MESSAGE: &[u8] = b"hello, world!";
let signature = private_key.sign(MESSAGE).expect("failed to sign.");
assert!(public_key.verify(&signature, MESSAGE).is_ok());

Trait Implementations

impl<T: Clone + LamportDigest> Clone for VerifyingKey<T>

fn clone(&self) -> VerifyingKey<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Debug + LamportDigest> Debug for VerifyingKey<T>

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

Formats the value using the given formatter.

impl<'de, T: LamportDigest> Deserialize<'de> for VerifyingKey<T>

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

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: LamportDigest> From<&SigningKey<T>> for VerifyingKey<T>

fn from(value: &SigningKey<T>) -> Self

Converts to this type from the input type.

impl<T: LamportDigest> From<&VerifyingKey<T>> for Vec<u8>

fn from(value: &VerifyingKey<T>) -> Vec<u8>

Converts to this type from the input type.

impl<T: LamportDigest> From<VerifyingKey<T>> for Vec<u8>

fn from(value: VerifyingKey<T>) -> Vec<u8>

Converts to this type from the input type.

impl<T: Hash + LamportDigest> Hash for VerifyingKey<T>

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<T: Ord + LamportDigest> Ord for VerifyingKey<T>

fn cmp(&self, other: &VerifyingKey<T>) -> 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<T: PartialEq + LamportDigest> PartialEq for VerifyingKey<T>

fn eq(&self, other: &VerifyingKey<T>) -> 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<T: PartialOrd + LamportDigest> PartialOrd for VerifyingKey<T>

fn partial_cmp(&self, other: &VerifyingKey<T>) -> 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<T: LamportDigest> Serialize for VerifyingKey<T>

fn serialize<S>(&self, s: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: LamportDigest> TryFrom<&[u8]> for VerifyingKey<T>

type Error = LamportError

The type returned in the event of a conversion error.

fn try_from(value: &[u8]) -> LamportResult<Self>

Performs the conversion.

impl<T: LamportDigest> TryFrom<&Vec<u8>> for VerifyingKey<T>

type Error = LamportError

The type returned in the event of a conversion error.

fn try_from(value: &Vec<u8>) -> LamportResult<Self>

Performs the conversion.

impl<T: LamportDigest> TryFrom<Box<[u8]>> for VerifyingKey<T>

type Error = LamportError

The type returned in the event of a conversion error.

fn try_from(value: Box<[u8]>) -> LamportResult<Self>

Performs the conversion.

impl<T: LamportDigest> TryFrom<Vec<u8>> for VerifyingKey<T>

type Error = LamportError

The type returned in the event of a conversion error.

fn try_from(value: Vec<u8>) -> LamportResult<Self>

Performs the conversion.

impl<T: Eq + LamportDigest> Eq for VerifyingKey<T>

impl<T: LamportDigest> StructuralPartialEq for VerifyingKey<T>