60 lines
2.4 KiB
JavaScript
60 lines
2.4 KiB
JavaScript
"use strict";
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/**
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* @_subsection: api/wallet:JSON Wallets [json-wallets]
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.decryptCrowdsaleJson = exports.isCrowdsaleJson = void 0;
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const aes_js_1 = require("aes-js");
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const index_js_1 = require("../address/index.js");
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const index_js_2 = require("../crypto/index.js");
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const index_js_3 = require("../hash/index.js");
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const index_js_4 = require("../utils/index.js");
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const utils_js_1 = require("./utils.js");
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/**
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* Returns true if %%json%% is a valid JSON Crowdsale wallet.
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*/
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function isCrowdsaleJson(json) {
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try {
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const data = JSON.parse(json);
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if (data.encseed) {
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return true;
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}
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}
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catch (error) { }
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return false;
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}
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exports.isCrowdsaleJson = isCrowdsaleJson;
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// See: https://github.com/ethereum/pyethsaletool
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/**
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* Before Ethereum launched, it was necessary to create a wallet
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* format for backers to use, which would be used to receive ether
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* as a reward for contributing to the project.
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*
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* The [[link-crowdsale]] format is now obsolete, but it is still
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* useful to support and the additional code is fairly trivial as
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* all the primitives required are used through core portions of
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* the library.
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*/
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function decryptCrowdsaleJson(json, _password) {
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const data = JSON.parse(json);
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const password = (0, utils_js_1.getPassword)(_password);
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// Ethereum Address
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const address = (0, index_js_1.getAddress)((0, utils_js_1.spelunk)(data, "ethaddr:string!"));
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// Encrypted Seed
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const encseed = (0, utils_js_1.looseArrayify)((0, utils_js_1.spelunk)(data, "encseed:string!"));
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(0, index_js_4.assertArgument)(encseed && (encseed.length % 16) === 0, "invalid encseed", "json", json);
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const key = (0, index_js_4.getBytes)((0, index_js_2.pbkdf2)(password, password, 2000, 32, "sha256")).slice(0, 16);
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const iv = encseed.slice(0, 16);
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const encryptedSeed = encseed.slice(16);
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// Decrypt the seed
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const aesCbc = new aes_js_1.CBC(key, iv);
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const seed = (0, aes_js_1.pkcs7Strip)((0, index_js_4.getBytes)(aesCbc.decrypt(encryptedSeed)));
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// This wallet format is weird... Convert the binary encoded hex to a string.
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let seedHex = "";
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for (let i = 0; i < seed.length; i++) {
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seedHex += String.fromCharCode(seed[i]);
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}
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return { address, privateKey: (0, index_js_3.id)(seedHex) };
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}
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exports.decryptCrowdsaleJson = decryptCrowdsaleJson;
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//# sourceMappingURL=json-crowdsale.js.map
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