MyCrypto/spec/integration/derivationChecker.int.ts

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import { generate, IFullWallet } from 'ethereumjs-wallet';
import { stripHexPrefix } from '../../common/libs/values';
const { exec } = require('child_process');
// FIXME pick a less magic number
const derivationRounds = 500;
const dockerImage = 'dternyak/eth-priv-to-addr';
const dockerTag = 'latest';
function promiseFromChildProcess(command: string): Promise<any> {
return new Promise((resolve, reject) => {
return exec(command, (err: string, stdout: string) => {
err ? reject(err) : resolve(stdout);
});
});
}
function getCleanPrivateKey(privKeyWallet: IFullWallet): string {
return stripHexPrefix(privKeyWallet.getPrivateKeyString());
}
function makeCommaSeparatedPrivateKeys(privKeyWallets: IFullWallet[]): string {
const privateKeys = privKeyWallets.map(getCleanPrivateKey);
return privateKeys.join(',');
}
async function privToAddrViaDocker(privKeyWallets: IFullWallet[]): Promise<string> {
const command = `docker run -e key=${makeCommaSeparatedPrivateKeys(
privKeyWallets
)} ${dockerImage}:${dockerTag}`;
const dockerOutput = await promiseFromChildProcess(command);
const newlineStrippedDockerOutput = dockerOutput.replace(/(\r\n|\n|\r)/gm, '');
return newlineStrippedDockerOutput;
}
function makeWallets(): IFullWallet[] {
const wallets: IFullWallet[] = [];
let i = 0;
while (i < derivationRounds) {
const privKeyWallet = generate();
wallets.push(privKeyWallet);
i += 1;
}
return wallets;
}
async function getNormalizedAddressFromWallet(wallet: IFullWallet): Promise<string> {
const privKeyWalletAddress = await wallet.getAddressString();
// strip checksum
return privKeyWalletAddress.toLowerCase();
}
async function getNormalizedAddressesFromWallets(wallets: IFullWallet[]): Promise<string[]> {
return Promise.all(wallets.map(getNormalizedAddressFromWallet));
}
async function testDerivation(): Promise<true> {
const wallets = makeWallets();
const walletAddrs = await getNormalizedAddressesFromWallets(wallets);
const dockerAddrsCS = await privToAddrViaDocker(wallets);
const dockerAddrs = dockerAddrsCS.split(',');
expect(walletAddrs).toEqual(dockerAddrs);
return true;
}
describe('Derivation Checker', () => {
beforeEach(() => {
// increase timer to prevent early timeout
jasmine.DEFAULT_TIMEOUT_INTERVAL = 100000;
});
it(`should derive identical addresses ${derivationRounds} times`, () => {
return testDerivation().then(expect);
});
});