How do large files have their integrity verified?

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How does a server know whether your local files are corrupted, version mismatched, or illegitimate without you uploading to the server? If they have to check through every file for integrity, wouldn’t that effectively be the same as downloading/uploading the entire folder?

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Anonymous 0 Comments

I am assuming here that the server have a copy of the files as well as the client. That allows the client and server to calculate a hash of the data. If there is anything wrong with the file it will produce a different hash and they will not match.

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