CryptTool 封装了一些加密工具方法-实用

CryptTool 封装了一些加密工具方法-实用(2)  /**
  * 3DES 解密(byte[]).
  *
  * @param key SecretKey
  * @param crypt byte[]
  * @throws Exception
  * @return byte[]
  */
 public static byte[] desDecrypt(Javax.crypto.SecretKey key, byte[] crypt)
  throws Exception {
  Javax.crypto.Cipher cipher = Javax.crypto.Cipher.getInstance("DESede");
  cipher.init(Javax.crypto.Cipher.DECRYPT_MODE, key);
  return cipher.doFinal(crypt);
 }

 /**
  * 3DES 解密(String).
  *
  * @param key SecretKey
  * @param crypt byte[]
  * @throws Exception
  * @return byte[]
  */
 public static String desDecrypt(Javax.crypto.SecretKey key, String crypt)
  throws Exception {
  return new String(desDecrypt(key, crypt.getBytes()));
 }

 /**
  * 3DES加密(byte[]).
  *
  * @param key SecretKey
  * @param src byte[]
  * @throws Exception
  * @return byte[]
  */
 public static byte[] desEncrypt(Javax.crypto.SecretKey key, byte[] src)
  throws Exception {
  Javax.crypto.Cipher cipher = Javax.crypto.Cipher.getInstance("DESede");
  cipher.init(Javax.crypto.Cipher.ENCRYPT_MODE, key);
  return cipher.doFinal(src);
 }