如何在javascript中加密或解密字符串

Question

我想使用以下代碼在javascript中加密和解密字符串。但是我沒有定義crypto js。

 var encrypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase"); var decrypted = CryptoJS.AES.decrypt(encrypted, "Secret Passphrase");

 <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js"></script>

Answer 1

對我來說很好用。

JSFiddle： https ://jsfiddle.net/xbk736br/

 // Encrypt var ciphertext = CryptoJS.AES.encrypt('my message', 'secret key 123'); // Decrypt var bytes = CryptoJS.AES.decrypt(ciphertext.toString(), 'secret key 123'); var plaintext = bytes.toString(CryptoJS.enc.Utf8); console.log(plaintext);

 <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js"></script>

Answer 2

如果你正在構建一個 react 或 nodejs 應用程序，你可以簡單地使用這個庫ncrypt-js來加密和解密你的數據。

請參閱代碼和框上的示例

用法：

es5

var ncrypt = require('ncrypt-js'); // or var { encrypt, decrypt } = require('ncrypt-js);

let encryptData = ncrypt.encrypt('super secret data', 'secret_key');
// or
// let encryptData = encrypt('super secret data', 'secret_key');

console.log(encryptData); // 11ab949601eb136f58ac3fe846e30d76.f9ce133b20adc35eef32af95957547abbb6fbfc5cb91cd14f5b0a088bd031883963cde1a56fd62fe2aeb75451a065d21
var decryptedData = ncrypt.decrypt(encryptData);
// or
// var decryptedData = decrypt(encryptData);

console.log(decryptedData); // super secret data

es6

import ncrypt from 'ncrypt-js'; // or import { encrypt, decrypt } from 'ncrypt-js';

const encryptData = ncrypt.encrypt('super secret data', 'secret_key');
// or
// const encryptData = encrypt('super secret data', 'secret_key');

console.log(encryptData); // 11ab949601eb136f58ac3fe846e30d76.f9ce133b20adc35eef32af95957547abbb6fbfc5cb91cd14f5b0a088bd031883963cde1a56fd62fe2aeb75451a065d21
const decryptedData = ncrypt.decrypt(encryptData);
// or
// const decryptedData = decrypt(encryptData);

console.log(decryptedData); // super secret data

Answer 3

encrypted.toString()將返回正確的字符串值。

 var encrypted = CryptoJS.AES.encrypt("Message", "Secret Passphrase"); alert(encrypted.toString()); var decrypted = CryptoJS.AES.decrypt(encrypted, "Secret Passphrase");

 <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js"></script>