- import java.util.Arrays;
- import javax.crypto.Cipher;
- import javax.crypto.SecretKey;
- import javax.crypto.SecretKeyFactory;
- import javax.crypto.spec.PBEKeySpec;
- import javax.crypto.spec.PBEParameterSpec;
- /**
- * PBE算法 对称加密 password-based encryption
- * @author stone
- * @date 2014-03-10 23:41:35
- */
- public class PBE {
- static final String KEY_ALGORITHM = "PBEWithMD5AndDES";
- // static byte[] salt = "xiaoyang".getBytes(); // 盐:Salt must be 8 bytes long
- static byte[] salt = "哈皮aa".getBytes(); // 盐:Salt must be 8 bytes long 哈皮,在utf8中是6个字节
- static int iterationCount = 888; //循环次数
- static Cipher cipher;
- public static void main(String[] args) throws Exception {
- byte[] encrypt = encrypt("中华人民admin*&(*S&6");
- System.out.println("PBE加密后:" + Arrays.toString(encrypt));
- System.out.println("PBE解密后:" + decrypt(encrypt));
- }
- /**
- * 使用PBE 算法 加密
- * @return 加密后的字符数组
- * @throws Exception
- */
- static byte[] encrypt(String str) throws Exception {
- cipher = Cipher.getInstance(KEY_ALGORITHM);
- //使用SecretKeyFactory 生成key
- SecretKeyFactory factory = SecretKeyFactory.getInstance(KEY_ALGORITHM);
- PBEKeySpec keySpec = new PBEKeySpec("shizongyin".toCharArray());
- SecretKey key = factory.generateSecret(keySpec);
- System.out.println("key:" + Arrays.toString(key.getEncoded()));
- cipher.init(Cipher.ENCRYPT_MODE, key, new PBEParameterSpec(salt, iterationCount));//使用加密模式初始化 密钥
- return cipher.doFinal(str.getBytes()); //按单部分操作加密或解密数据,或者结束一个多部分操作。
- }
- /**
- *
- * @param encrypt
- * @return
- * @throws Exception
- */
- static String decrypt(byte[] encrypt) throws Exception {
- cipher = Cipher.getInstance(KEY_ALGORITHM);
- //使用SecretKeyFactory 生成key
- SecretKeyFactory factory = SecretKeyFactory.getInstance(KEY_ALGORITHM);
- PBEKeySpec keySpec = new PBEKeySpec("shizongyin".toCharArray());
- SecretKey key = factory.generateSecret(keySpec);
- System.out.println("key:" + Arrays.toString(key.getEncoded()));
- cipher.init(Cipher.DECRYPT_MODE, key, new PBEParameterSpec(salt, iterationCount));//使用加密模式初始化 密钥
- byte[] result = cipher.doFinal(encrypt); //按单部分操作加密或解密数据,或者结束一个多部分操作。
- return new String(result);
- }
- }
来源: http://www.phpxs.com/code/1002011/