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add option to generate mnemonic #37

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add option to generate mnemonic #37

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6 changes: 6 additions & 0 deletions index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ const argv = Yargs(process.argv.slice(2))
.describe("n", "number of wallets")
.boolean("contract")
.describe("contract", "contract address for contract deployment")
.alias("m", "mnemonic")
.boolean("m")
.describe("m", "generate mnemonic")
.alias("l", "log")
.boolean("l")
.describe("l", "log output to file")
Expand All @@ -46,6 +49,7 @@ if (cluster.isMaster) {
isChecksum: argv.checksum ? true : false,
numWallets: argv.count ? argv.count : 1,
isContract: argv.contract ? true : false,
isMnemonic: argv.mnemonic ? true : false,
log: argv.log ? true : false,
logFname: argv.log ? "VanityEth-log-" + Date.now() + ".txt" : "",
};
Expand Down Expand Up @@ -75,6 +79,7 @@ if (cluster.isMaster) {
input: args.input,
isChecksum: args.isChecksum,
isContract: args.isContract,
isMnemonic: args.isMnemonic,
};
const proc = cluster.fork(worker_env);
proc.on("message", function (message) {
Expand Down Expand Up @@ -105,6 +110,7 @@ if (cluster.isMaster) {
worker_env.input,
worker_env.isChecksum == "true",
worker_env.isContract == "true",
worker_env.isMnemonic == "true",
function () {
process.send({
counter: true,
Expand Down
15 changes: 13 additions & 2 deletions libs/VanityEth.js
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Original file line number Diff line number Diff line change
@@ -1,5 +1,8 @@
import crypto from "crypto";
import ethUtils from "ethereumjs-util";
import ethWallet from "ethereumjs-wallet";
import bip39 from "bip39";
const path = "m/44'/60'/0'/0/0";
var ERRORS = {
invalidHex: "Invalid hex input",
};
Expand All @@ -8,6 +11,12 @@ var getRandomWallet = function () {
var address = "0x" + ethUtils.privateToAddress(randbytes).toString("hex");
return { address: address, privKey: randbytes.toString("hex") };
};
var getRandomWalletWithMnemonic = function () {
const mnemonic = bip39.generateMnemonic();
const key = ethWallet.hdkey.fromMasterSeed(bip39.mnemonicToSeedSync(mnemonic));
const wallet = ethWallet.default.fromExtendedPrivateKey(key.derivePath(path).privateExtendedKey());
return { address: wallet.getAddressString(), privKey: wallet.getPrivateKeyString(), mnemonic: mnemonic };
};
var isValidHex = function (hex) {
if (!hex.length) return true;
hex = hex.toUpperCase();
Expand All @@ -31,14 +40,16 @@ var getVanityWallet = function (
input = "",
isChecksum = false,
isContract = false,
isMnemonic = false,
counter = function () {}
) {
if (!isValidHex(input)) throw new Error(ERRORS.invalidHex);
input = isChecksum ? input : input.toLowerCase();
var _wallet = getRandomWallet();
const randomWalletFunc = isMnemonic ? getRandomWalletWithMnemonic : getRandomWallet;
var _wallet = randomWalletFunc();
while (!isValidVanityWallet(_wallet, input, isChecksum, isContract)) {
counter();
_wallet = getRandomWallet(isChecksum);
_wallet = randomWalletFunc(isChecksum);
}
if (isChecksum) _wallet.address = ethUtils.toChecksumAddress(_wallet.address);
return _wallet;
Expand Down
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