deadmanswitch-encryption/dist/react-native.js

Cross-platform encryption library for React Native and React web applications with password-based encryption

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
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}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __exportStar = (this && this.__exportStar) || function(m, exports) {
    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.decrypt = exports.encrypt = void 0;
const react_native_quick_crypto_1 = __importDefault(require("react-native-quick-crypto"));
const utils_1 = require("./utils");
class ReactNativeCryptoService {
    constructor() {
        this.defaultIterations = 100000;
        this.defaultKeyLength = 256;
    }
    async encrypt(data, options) {
        const { password, iterations = this.defaultIterations, keyLength = this.defaultKeyLength } = options;
        const salt = react_native_quick_crypto_1.default.randomBytes(16);
        const iv = react_native_quick_crypto_1.default.randomBytes(12);
        const passwordKey = await this.deriveKey(password, salt, iterations, keyLength);
        const encoder = new TextEncoder();
        const dataBuffer = encoder.encode(data);
        const cipher = react_native_quick_crypto_1.default.createCipheriv('aes-256-gcm', passwordKey, iv);
        cipher.setAAD(Buffer.alloc(0));
        let encrypted = cipher.update(dataBuffer);
        cipher.final();
        const authTag = cipher.getAuthTag();
        const encryptedWithTag = new Uint8Array(encrypted.length + authTag.length);
        encryptedWithTag.set(encrypted);
        encryptedWithTag.set(authTag, encrypted.length);
        return {
            encryptedData: (0, utils_1.arrayBufferToBase64)(encryptedWithTag.buffer),
            salt: (0, utils_1.arrayBufferToBase64)(salt.buffer),
            iv: (0, utils_1.arrayBufferToBase64)(iv.buffer)
        };
    }
    async decrypt(options) {
        const { password, encryptedData, salt, iv, iterations = this.defaultIterations, keyLength = this.defaultKeyLength } = options;
        const saltBuffer = new Uint8Array((0, utils_1.base64ToArrayBuffer)(salt));
        const ivBuffer = new Uint8Array((0, utils_1.base64ToArrayBuffer)(iv));
        const encryptedBuffer = new Uint8Array((0, utils_1.base64ToArrayBuffer)(encryptedData));
        const authTagLength = 16;
        const ciphertext = encryptedBuffer.slice(0, -authTagLength);
        const authTag = encryptedBuffer.slice(-authTagLength);
        const passwordKey = await this.deriveKey(password, saltBuffer, iterations, keyLength);
        const decipher = react_native_quick_crypto_1.default.createDecipheriv('aes-256-gcm', passwordKey, ivBuffer);
        decipher.setAAD(Buffer.alloc(0));
        decipher.setAuthTag(authTag);
        let decrypted = decipher.update(ciphertext);
        decipher.final();
        const decoder = new TextDecoder();
        return decoder.decode(decrypted);
    }
    async deriveKey(password, salt, iterations, keyLength) {
        return react_native_quick_crypto_1.default.pbkdf2Sync(password, Buffer.from(salt), iterations, keyLength / 8, 'sha256');
    }
}
const cryptoService = new ReactNativeCryptoService();
const encrypt = (data, options) => cryptoService.encrypt(data, options);
exports.encrypt = encrypt;
const decrypt = (options) => cryptoService.decrypt(options);
exports.decrypt = decrypt;
__exportStar(require("./types"), exports);