Trait Verifier

Source

pub trait Verifier {
    // Required method
    fn verify(&self, signature: &Signature, message: &dyn AsRef<[u8]>) -> bool;
}

Expand description

A trait for types capable of verifying digital signatures.

The Verifier trait provides a method to verify that a signature was created by a corresponding signer for a specific message. This trait is implemented by SigningPublicKey for all supported signature schemes.

§Examples

use bc_components::{SignatureScheme, Signer, Verifier};

// Create a key pair using the ECDSA signature scheme
let (private_key, public_key) = SignatureScheme::Ecdsa.keypair();

// Sign a message
let message = b"Hello, world!";
let signature = private_key.sign(&message).unwrap();

// Verify the signature
assert!(public_key.verify(&signature, &message));

// Verification should fail for a different message
assert!(!public_key.verify(&signature, &b"Different message"));

Required Methods§

Source

fn verify(&self, signature: &Signature, message: &dyn AsRef<[u8]>) -> bool

Verifies a signature against a message.

§Arguments

signature - The signature to verify
message - The message that was allegedly signed

§Returns

true if the signature is valid for the message, false otherwise.

§Examples

use bc_components::{SignatureScheme, Signer, Verifier};

// Create a key pair
let (private_key, public_key) = SignatureScheme::Ed25519.keypair();

// Sign a message
let message = b"Hello, world!";
let signature = private_key.sign(&message).unwrap();

// Verify the signature with the correct message (should succeed)
assert!(public_key.verify(&signature, &message));

// Verify the signature with an incorrect message (should fail)
assert!(!public_key.verify(&signature, &b"Tampered message"));