Viewing File: /home/ubuntu/misabloom-frontend-base/node_modules/@ethersproject/json-wallets/lib.esm/keystore.js
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
import aes from "aes-js";
import scrypt from "scrypt-js";
import { getAddress } from "@ethersproject/address";
import { arrayify, concat, hexlify } from "@ethersproject/bytes";
import { defaultPath, entropyToMnemonic, HDNode, mnemonicToEntropy } from "@ethersproject/hdnode";
import { keccak256 } from "@ethersproject/keccak256";
import { pbkdf2 as _pbkdf2 } from "@ethersproject/pbkdf2";
import { randomBytes } from "@ethersproject/random";
import { Description } from "@ethersproject/properties";
import { computeAddress } from "@ethersproject/transactions";
import { getPassword, looseArrayify, searchPath, uuidV4, zpad } from "./utils";
import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);
// Exported Types
function hasMnemonic(value) {
return (value != null && value.mnemonic && value.mnemonic.phrase);
}
export class KeystoreAccount extends Description {
isKeystoreAccount(value) {
return !!(value && value._isKeystoreAccount);
}
}
function _decrypt(data, key, ciphertext) {
const cipher = searchPath(data, "crypto/cipher");
if (cipher === "aes-128-ctr") {
const iv = looseArrayify(searchPath(data, "crypto/cipherparams/iv"));
const counter = new aes.Counter(iv);
const aesCtr = new aes.ModeOfOperation.ctr(key, counter);
return arrayify(aesCtr.decrypt(ciphertext));
}
return null;
}
function _getAccount(data, key) {
const ciphertext = looseArrayify(searchPath(data, "crypto/ciphertext"));
const computedMAC = hexlify(keccak256(concat([key.slice(16, 32), ciphertext]))).substring(2);
if (computedMAC !== searchPath(data, "crypto/mac").toLowerCase()) {
throw new Error("invalid password");
}
const privateKey = _decrypt(data, key.slice(0, 16), ciphertext);
if (!privateKey) {
logger.throwError("unsupported cipher", Logger.errors.UNSUPPORTED_OPERATION, {
operation: "decrypt"
});
}
const mnemonicKey = key.slice(32, 64);
const address = computeAddress(privateKey);
if (data.address) {
let check = data.address.toLowerCase();
if (check.substring(0, 2) !== "0x") {
check = "0x" + check;
}
if (getAddress(check) !== address) {
throw new Error("address mismatch");
}
}
const account = {
_isKeystoreAccount: true,
address: address,
privateKey: hexlify(privateKey)
};
// Version 0.1 x-ethers metadata must contain an encrypted mnemonic phrase
if (searchPath(data, "x-ethers/version") === "0.1") {
const mnemonicCiphertext = looseArrayify(searchPath(data, "x-ethers/mnemonicCiphertext"));
const mnemonicIv = looseArrayify(searchPath(data, "x-ethers/mnemonicCounter"));
const mnemonicCounter = new aes.Counter(mnemonicIv);
const mnemonicAesCtr = new aes.ModeOfOperation.ctr(mnemonicKey, mnemonicCounter);
const path = searchPath(data, "x-ethers/path") || defaultPath;
const locale = searchPath(data, "x-ethers/locale") || "en";
const entropy = arrayify(mnemonicAesCtr.decrypt(mnemonicCiphertext));
try {
const mnemonic = entropyToMnemonic(entropy, locale);
const node = HDNode.fromMnemonic(mnemonic, null, locale).derivePath(path);
if (node.privateKey != account.privateKey) {
throw new Error("mnemonic mismatch");
}
account.mnemonic = node.mnemonic;
}
catch (error) {
// If we don't have the locale wordlist installed to
// read this mnemonic, just bail and don't set the
// mnemonic
if (error.code !== Logger.errors.INVALID_ARGUMENT || error.argument !== "wordlist") {
throw error;
}
}
}
return new KeystoreAccount(account);
}
function pbkdf2Sync(passwordBytes, salt, count, dkLen, prfFunc) {
return arrayify(_pbkdf2(passwordBytes, salt, count, dkLen, prfFunc));
}
function pbkdf2(passwordBytes, salt, count, dkLen, prfFunc) {
return Promise.resolve(pbkdf2Sync(passwordBytes, salt, count, dkLen, prfFunc));
}
function _computeKdfKey(data, password, pbkdf2Func, scryptFunc, progressCallback) {
const passwordBytes = getPassword(password);
const kdf = searchPath(data, "crypto/kdf");
if (kdf && typeof (kdf) === "string") {
const throwError = function (name, value) {
return logger.throwArgumentError("invalid key-derivation function parameters", name, value);
};
if (kdf.toLowerCase() === "scrypt") {
const salt = looseArrayify(searchPath(data, "crypto/kdfparams/salt"));
const N = parseInt(searchPath(data, "crypto/kdfparams/n"));
const r = parseInt(searchPath(data, "crypto/kdfparams/r"));
const p = parseInt(searchPath(data, "crypto/kdfparams/p"));
// Check for all required parameters
if (!N || !r || !p) {
throwError("kdf", kdf);
}
// Make sure N is a power of 2
if ((N & (N - 1)) !== 0) {
throwError("N", N);
}
const dkLen = parseInt(searchPath(data, "crypto/kdfparams/dklen"));
if (dkLen !== 32) {
throwError("dklen", dkLen);
}
return scryptFunc(passwordBytes, salt, N, r, p, 64, progressCallback);
}
else if (kdf.toLowerCase() === "pbkdf2") {
const salt = looseArrayify(searchPath(data, "crypto/kdfparams/salt"));
let prfFunc = null;
const prf = searchPath(data, "crypto/kdfparams/prf");
if (prf === "hmac-sha256") {
prfFunc = "sha256";
}
else if (prf === "hmac-sha512") {
prfFunc = "sha512";
}
else {
throwError("prf", prf);
}
const count = parseInt(searchPath(data, "crypto/kdfparams/c"));
const dkLen = parseInt(searchPath(data, "crypto/kdfparams/dklen"));
if (dkLen !== 32) {
throwError("dklen", dkLen);
}
return pbkdf2Func(passwordBytes, salt, count, dkLen, prfFunc);
}
}
return logger.throwArgumentError("unsupported key-derivation function", "kdf", kdf);
}
export function decryptSync(json, password) {
const data = JSON.parse(json);
const key = _computeKdfKey(data, password, pbkdf2Sync, scrypt.syncScrypt);
return _getAccount(data, key);
}
export function decrypt(json, password, progressCallback) {
return __awaiter(this, void 0, void 0, function* () {
const data = JSON.parse(json);
const key = yield _computeKdfKey(data, password, pbkdf2, scrypt.scrypt, progressCallback);
return _getAccount(data, key);
});
}
export function encrypt(account, password, options, progressCallback) {
try {
// Check the address matches the private key
if (getAddress(account.address) !== computeAddress(account.privateKey)) {
throw new Error("address/privateKey mismatch");
}
// Check the mnemonic (if any) matches the private key
if (hasMnemonic(account)) {
const mnemonic = account.mnemonic;
const node = HDNode.fromMnemonic(mnemonic.phrase, null, mnemonic.locale).derivePath(mnemonic.path || defaultPath);
if (node.privateKey != account.privateKey) {
throw new Error("mnemonic mismatch");
}
}
}
catch (e) {
return Promise.reject(e);
}
// The options are optional, so adjust the call as needed
if (typeof (options) === "function" && !progressCallback) {
progressCallback = options;
options = {};
}
if (!options) {
options = {};
}
const privateKey = arrayify(account.privateKey);
const passwordBytes = getPassword(password);
let entropy = null;
let path = null;
let locale = null;
if (hasMnemonic(account)) {
const srcMnemonic = account.mnemonic;
entropy = arrayify(mnemonicToEntropy(srcMnemonic.phrase, srcMnemonic.locale || "en"));
path = srcMnemonic.path || defaultPath;
locale = srcMnemonic.locale || "en";
}
let client = options.client;
if (!client) {
client = "ethers.js";
}
// Check/generate the salt
let salt = null;
if (options.salt) {
salt = arrayify(options.salt);
}
else {
salt = randomBytes(32);
;
}
// Override initialization vector
let iv = null;
if (options.iv) {
iv = arrayify(options.iv);
if (iv.length !== 16) {
throw new Error("invalid iv");
}
}
else {
iv = randomBytes(16);
}
// Override the uuid
let uuidRandom = null;
if (options.uuid) {
uuidRandom = arrayify(options.uuid);
if (uuidRandom.length !== 16) {
throw new Error("invalid uuid");
}
}
else {
uuidRandom = randomBytes(16);
}
// Override the scrypt password-based key derivation function parameters
let N = (1 << 17), r = 8, p = 1;
if (options.scrypt) {
if (options.scrypt.N) {
N = options.scrypt.N;
}
if (options.scrypt.r) {
r = options.scrypt.r;
}
if (options.scrypt.p) {
p = options.scrypt.p;
}
}
// We take 64 bytes:
// - 32 bytes As normal for the Web3 secret storage (derivedKey, macPrefix)
// - 32 bytes AES key to encrypt mnemonic with (required here to be Ethers Wallet)
return scrypt.scrypt(passwordBytes, salt, N, r, p, 64, progressCallback).then((key) => {
key = arrayify(key);
// This will be used to encrypt the wallet (as per Web3 secret storage)
const derivedKey = key.slice(0, 16);
const macPrefix = key.slice(16, 32);
// This will be used to encrypt the mnemonic phrase (if any)
const mnemonicKey = key.slice(32, 64);
// Encrypt the private key
const counter = new aes.Counter(iv);
const aesCtr = new aes.ModeOfOperation.ctr(derivedKey, counter);
const ciphertext = arrayify(aesCtr.encrypt(privateKey));
// Compute the message authentication code, used to check the password
const mac = keccak256(concat([macPrefix, ciphertext]));
// See: https://github.com/ethereum/wiki/wiki/Web3-Secret-Storage-Definition
const data = {
address: account.address.substring(2).toLowerCase(),
id: uuidV4(uuidRandom),
version: 3,
crypto: {
cipher: "aes-128-ctr",
cipherparams: {
iv: hexlify(iv).substring(2),
},
ciphertext: hexlify(ciphertext).substring(2),
kdf: "scrypt",
kdfparams: {
salt: hexlify(salt).substring(2),
n: N,
dklen: 32,
p: p,
r: r
},
mac: mac.substring(2)
}
};
// If we have a mnemonic, encrypt it into the JSON wallet
if (entropy) {
const mnemonicIv = randomBytes(16);
const mnemonicCounter = new aes.Counter(mnemonicIv);
const mnemonicAesCtr = new aes.ModeOfOperation.ctr(mnemonicKey, mnemonicCounter);
const mnemonicCiphertext = arrayify(mnemonicAesCtr.encrypt(entropy));
const now = new Date();
const timestamp = (now.getUTCFullYear() + "-" +
zpad(now.getUTCMonth() + 1, 2) + "-" +
zpad(now.getUTCDate(), 2) + "T" +
zpad(now.getUTCHours(), 2) + "-" +
zpad(now.getUTCMinutes(), 2) + "-" +
zpad(now.getUTCSeconds(), 2) + ".0Z");
data["x-ethers"] = {
client: client,
gethFilename: ("UTC--" + timestamp + "--" + data.address),
mnemonicCounter: hexlify(mnemonicIv).substring(2),
mnemonicCiphertext: hexlify(mnemonicCiphertext).substring(2),
path: path,
locale: locale,
version: "0.1"
};
}
return JSON.stringify(data);
});
}
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