verifyECDSASignature()

Verifies an ECDSA signature against a hash.

Definition

function verifyECDSA(
	publicKey: ECDSAPublicKey,
	hash: Uint8Array,
	signature: ECDSASignature
): boolean;

Parameters

• publicKey
• hash: The hash should be of a size similar to that of the curve (e.g. SHA-256 for P-256, SHA-512 for SHA-521).
• signature

Example

import { verifyECDSA, p256, ECDSAPublicKey } from "@oslojs/crypto/ecdsa";
import { sha256 } from "@oslojs/crypto/sha2";

const hash = sha256(new TextEncoder().encode("hello"));
const publicKey = new ECDSAPublicKey(p256, x, y);
const valid = verifyECDSA(publicKey, hash, r, s);