where is the hash check logic when downloading a file

[ssoL2]

Hello. I am a Korean student using qbittorrent.

I understand the flow of torrents by analyzing the qbittorrent c++ source code files on github. So far, it has helped me a lot in studying the principle structure of torrents. The reason I'm contacting you is because I couldn't find any logic to check the hash of the piece when downloading a file from Leecher's point of view, so I contacted him for help. I am a researcher studying forensics, and I am studying the check logic and storage process of hash that is checked by various programs. So, can you tell me what source code contains qbittorrent's download piece hash check logic among torrent programs? I really want to know. I would be grateful if you could help me in my study direction.

Please respond. thank you.

[thalieht]

can you tell me what source code contains qbittorrent's download piece hash check logic

Libtorrent is responsible for that https://github.com/arvidn/libtorrent.