@plugnet/util-crypto/nacl/verify.js

A collection of useful crypto utilities for @plugnet

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = naclVerify;

var _tweetnacl = _interopRequireDefault(require("tweetnacl"));

var _util = require("@plugnet/util");

var _wasmCrypto = require("@plugnet/wasm-crypto");

// Copyright 2017-2019 @polkadot/util-crypto authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.

/**
 * @name naclSign
 * @summary Verifies the signature on the supplied message.
 * @description
 * Verifies the `signature` on `message` with the supplied `plublicKey`. Returns `true` on sucess, `false` otherwise.
 * @example
 * <BR>
 *
 * ```javascript
 * import { naclVerify } from '@plugnet/util-crypto';
 *
 * naclVerify([...], [...], [...]); // => true/false
 * ```
 */
function naclVerify(message, signature, publicKey) {
  const messageU8a = (0, _util.u8aToU8a)(message);
  const signatureU8a = (0, _util.u8aToU8a)(signature);
  const publicKeyU8a = (0, _util.u8aToU8a)(publicKey);
  return (0, _wasmCrypto.isReady)() ? (0, _wasmCrypto.ed25519Verify)(signatureU8a, messageU8a, publicKeyU8a) : _tweetnacl.default.sign.detached.verify(messageU8a, signatureU8a, publicKeyU8a);
}