javax.crypto.BadPaddingException: Given final block not properly padded. Suc

本是古典何须时尚 2023-05-29 05:24 6阅读 0赞

在在进行token加密解密的时候报错:

然后百度一下:  
对着这哥们的修改一波:  
https://www.cnblogs.com/zempty/p/4318902.html  
主要就是修改加密部分:  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz_size_16_color_FFFFFF_t_70]  
在linux上面 错误部分:

private Key initKeyForAES(String key) throws NoSuchAlgorithmException { 
            if (null == key || key.length() == 0) { 
                throw new NullPointerException("key not is null");
            }
            SecretKeySpec key2 = null;try { 
                KeyGenerator kgen = KeyGenerator.getInstance("AES");
                kgen.init(128, new SecureRandom(key.getBytes()));
                SecretKey secretKey = kgen.generateKey();
                byte[] enCodeFormat = secretKey.getEncoded();
                key2 = new SecretKeySpec(enCodeFormat, "AES");
            } catch (NoSuchAlgorithmException ex) { 
                throw new NoSuchAlgorithmException();
            }
            return key2;
    
        }

修改后部分:

private Key initKeyForAES(String key) throws NoSuchAlgorithmException { 
            if (null == key || key.length() == 0) { 
                throw new NullPointerException("key not is null");
            }
            SecretKeySpec key2 = null;
            SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
            random.setSeed(key.getBytes());
            try { 
                KeyGenerator kgen = KeyGenerator.getInstance("AES");
                kgen.init(128, random);
                SecretKey secretKey = kgen.generateKey();
                byte[] enCodeFormat = secretKey.getEncoded();
                key2 = new SecretKeySpec(enCodeFormat, "AES");
            } catch (NoSuchAlgorithmException ex) { 
                throw new NoSuchAlgorithmException();
            }
            return key2;
    
        }

下面是我自己修改的,也是网上找的工具类,比较复杂…  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz_size_16_color_FFFFFF_t_70 1]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191104192425921.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20191104192250405.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4MzY2MDYz,size_16,color_FFFFFF,t_70