90 lines
2.3 KiB
JavaScript
90 lines
2.3 KiB
JavaScript
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// Copyright 2015-2017 Parity Technologies (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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import { keccak_256 as keccak256 } from 'js-sha3';
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import secp256k1 from 'secp256k1/js';
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// Stay compatible between environments
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if (typeof self !== 'object') {
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const scope = typeof global === 'undefined' ? window : global;
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scope.self = scope;
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}
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function bytesToHex (bytes) {
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return '0x' + Array.from(bytes).map(n => ('0' + n.toString(16)).slice(-2)).join('');
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}
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// Logic ported from /ethkey/src/brain.rs
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function phraseToWallet (phrase) {
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let secret = keccak256.array(phrase);
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for (let i = 0; i < 16384; i++) {
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secret = keccak256.array(secret);
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}
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while (true) {
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secret = keccak256.array(secret);
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const secretBuf = Buffer.from(secret);
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if (secp256k1.privateKeyVerify(secretBuf)) {
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// No compression, slice out last 64 bytes
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const publicBuf = secp256k1.publicKeyCreate(secretBuf, false).slice(-64);
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const address = keccak256.array(publicBuf).slice(12);
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if (address[0] !== 0) {
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continue;
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}
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const wallet = {
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secret: bytesToHex(secretBuf),
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public: bytesToHex(publicBuf),
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address: bytesToHex(address)
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};
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return wallet;
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}
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}
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}
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self.onmessage = function ({ data }) {
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const wallet = phraseToWallet(data);
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postMessage(wallet);
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close();
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};
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// Emulate a web worker in Node.js
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class KeyWorker {
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postMessage (data) {
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// Force async
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setTimeout(() => {
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const wallet = phraseToWallet(data);
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this.onmessage({ data: wallet });
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}, 0);
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}
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onmessage (event) {
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// no-op to be overriden
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}
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}
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if (exports != null) {
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exports.KeyWorker = KeyWorker;
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}
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