HTHou opened a new pull request, #286:
URL: https://github.com/apache/tsfile/pull/286

   Fixes 
[https://github.com/apache/tsfile/security/code-scanning/7](https://github.com/apache/tsfile/security/code-scanning/7)
   
   To fix the problem, we should replace the use of the MD5 algorithm with a 
stronger, modern cryptographic hash function such as SHA-256. This change will 
enhance the security of the cryptographic operations performed by the code.
   
   - Replace `MessageDigest.getInstance("MD5")` with 
`MessageDigest.getInstance("SHA-256")`.
   - Ensure that the rest of the code correctly handles the output size of 
SHA-256, which is 256 bits (32 bytes), compared to MD5's 128 bits (16 bytes).
   
   
   _Suggested fixes powered by Copilot Autofix. Review carefully before 
merging._
   


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