在JAVA中快速简单的字符串加密/解密

Question

我需要一种快速简单的方法来 加密/解密 字符串 数据的“很多” 。我尝试了 jasypt， 但在我的 Android
手机上崩溃了。我大约有 2000条记录 （字符串）。

BasicTextEncryptor textEncryptor = new BasicTextEncryptor();
textEncryptor.setPassword("password");
String myEncryptedText = textEncryptor.encrypt(input);

还有其他方法吗？我不需要极高的安全性，它需要 快速 ！

Answer 1

Java-从配置文件加密/解密用户名和密码

链接上方的代码

DESKeySpec keySpec = new DESKeySpec("Your secret Key phrase".getBytes("UTF8"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey key = keyFactory.generateSecret(keySpec);
sun.misc.BASE64Encoder base64encoder = new BASE64Encoder();
sun.misc.BASE64Decoder base64decoder = new BASE64Decoder();
.........

// ENCODE plainTextPassword String
byte[] cleartext = plainTextPassword.getBytes("UTF8");

Cipher cipher = Cipher.getInstance("DES"); // cipher is not thread safe
cipher.init(Cipher.ENCRYPT_MODE, key);
String encryptedPwd = base64encoder.encode(cipher.doFinal(cleartext));
// now you can store it 
......

// DECODE encryptedPwd String
byte[] encrypedPwdBytes = base64decoder.decodeBuffer(encryptedPwd);

Cipher cipher = Cipher.getInstance("DES");// cipher is not thread safe
cipher.init(Cipher.DECRYPT_MODE, key);
byte[] plainTextPwdBytes = (cipher.doFinal(encrypedPwdBytes));