Method decrypt

security/src/main/java/pro/tools/security/ToolDES.java:76–89

解密 @param data 待解密数据 @param key 密钥 @return byte[] 解密数据 @throws Exception

(byte[] data, byte[] key)

     * @throws Exception
     */
    public static byte[] decrypt(byte[] data, byte[] key) throws NoSuchAlgorithmException, InvalidKeyException, InvalidKeySpecException, NoSuchPaddingException, BadPaddingException, IllegalBlockSizeException {

        // 还原密钥
        Key k = toKey(key);

        // 实例化
        Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);

        // 初始化，设置为解密模式
        cipher.init(Cipher.DECRYPT_MODE, k);

        // 执行操作
        return cipher.doFinal(data);
    }

    /**
     * 加密