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Текущая директория: /opt/BitGoJS/modules/sdk-core/dist/src/bitgo/trading/network
Просмотр файла: encrypt-rsa-browser.js

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports._encryptBrowserRsa = _encryptBrowserRsa;
const crypto_1 = __importDefault(require("crypto"));
const utils_1 = require("./utils");
/**
 * Import a public RSA key and encrypt a plaintext
 * @param {string} publicKey PEM-formatted public RSA key
 * @param {string} text The text to encrypt
 * @returns {string} The encrypted text
 */
async function _encryptBrowserRsa(publicKey, text) {
    const pub = await importPublicKey(publicKey);
    const encrypted = await encryptRSA(pub, new TextEncoder().encode(text));
    return btoa((0, utils_1.ab2str)(encrypted));
}
/**
 * Import a public RSA key from a PEM string
 * @param {string} spkiPem
 * @returns {CryptoKey}
 */
async function importPublicKey(spkiPem) {
    // Pull from window.crypto when running in the browser.
    // This is due to libraries like crypto-browserify overriding "crypto" while not supporting various crypto functions.
    let cryptoJS = crypto_1.default;
    if (typeof window !== 'undefined') {
        cryptoJS = window.crypto;
    }
    return await cryptoJS.subtle.importKey('spki', getSpkiDer(spkiPem), {
        name: 'RSA-OAEP',
        hash: 'SHA-256',
    }, true, ['encrypt']);
}
/**
 * Encrypt a plaintext using RSA-OAEP
 * @param {CryptoKey} key The public key to use for encryption
 * @param {ArrayBuffer} plaintext The plaintext to encrypt
 * @returns {ArrayBuffer} The encrypted text
 */
async function encryptRSA(key, plaintext) {
    // Pull from window.crypto when running in the browser.
    // This is due to libraries like crypto-browserify overriding "crypto" while not supporting various crypto functions.
    let cryptoJS = crypto_1.default;
    if (typeof window !== 'undefined') {
        cryptoJS = window.crypto;
    }
    const encrypted = await cryptoJS.subtle.encrypt({
        name: 'RSA-OAEP',
    }, key, plaintext);
    return encrypted;
}
/**
 * Convert a PEM-formatted SPKI key to a DER-formatted ArrayBuffer
 * @param {string} spkiPem PEM-formatted SPKI key
 * @returns {ArrayBuffer} DER-formatted public key
 */
function getSpkiDer(spkiPem) {
    spkiPem = spkiPem.replace(/-----[^-]+-----/g, '').replace(/\s+/g, '');
    const binaryDerString = atob(spkiPem);
    return (0, utils_1.str2ab)(binaryDerString);
}
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k7XG59XG4iXX0=
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