[GitHub] [incubator-shardingsphere] tristaZero commented on issue #3925: Solve the bug that the encryption result exception value is 'null' string when the encryption field value is null

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tristaZero commented on issue #3925: Solve the bug that the encryption result exception value is 'null' string when the encryption field value is null
URL: https://github.com/apache/incubator-shardingsphere/pull/3925#issuecomment-572999809
 
 
   @minghu-zhang Hi minghui, thanks for your pr. 
   
   I found you added the judgement of `StringUtil.isNullOrEmpty(plaintext)` in `encrypt()` and `decrypt()` for `AESEncryptor` and `encrypt()` for `MD5Encryptor`, i am curious what will happen if the parameter for those functions is null or empty string?

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