@anderson.tec12/utils
Version:
[](https://badge.fury.io/js/%40anderson.tec12%2Futils) [](https://opensource.org/licenses/MIT)
76 lines (75 loc) • 3.18 kB
JavaScript
;
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());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.secureStorage = void 0;
class SecureStorage {
constructor(secret) {
this.encoder = new TextEncoder();
this.decoder = new TextDecoder();
this.secret = secret;
}
getKey() {
return __awaiter(this, void 0, void 0, function* () {
const keyMaterial = yield window.crypto.subtle.importKey('raw', this.encoder.encode(this.secret), 'PBKDF2', false, ['deriveKey']);
return yield window.crypto.subtle.deriveKey({
name: 'PBKDF2',
salt: this.encoder.encode('saltaqui123'),
iterations: 100000,
hash: 'SHA-256',
}, keyMaterial, { name: 'AES-GCM', length: 256 }, true, ['encrypt', 'decrypt']);
});
}
setItem(key, value) {
return __awaiter(this, void 0, void 0, function* () {
const iv = window.crypto.getRandomValues(new Uint8Array(12));
const encoded = this.encoder.encode(JSON.stringify(value));
const cryptoKey = yield this.getKey();
const encrypted = yield window.crypto.subtle.encrypt({
name: 'AES-GCM',
iv: iv,
}, cryptoKey, encoded);
const data = {
iv: Array.from(iv),
value: Array.from(new Uint8Array(encrypted)),
};
localStorage.setItem(key, JSON.stringify(data));
});
}
getItem(key) {
return __awaiter(this, void 0, void 0, function* () {
const item = localStorage.getItem(key);
if (!item)
return null;
const data = JSON.parse(item);
const iv = new Uint8Array(data.iv);
const encryptedData = new Uint8Array(data.value);
const cryptoKey = yield this.getKey();
try {
const decrypted = yield window.crypto.subtle.decrypt({
name: 'AES-GCM',
iv: iv,
}, cryptoKey, encryptedData);
return JSON.parse(this.decoder.decode(decrypted));
}
catch (e) {
console.error('Erro ao descriptografar:', e);
return null;
}
});
}
removeItem(key) {
localStorage.removeItem(key);
}
clear() {
localStorage.clear();
}
}
exports.secureStorage = new SecureStorage('08dc3b0a3a70de0e0b82a6168814f697');