Hash the generated logs to avoid any tampering with the results.

[joedicastro]

Create a hash by every log file generated by a test (in the VPS instance or in the local machine) to avoid any tampering with the results. Download both the hash and the log in the same step.

Use a common but secure hash algorithm to perform the checksums easily by anyone.

[lcts]

I've implemented this in #37 , however someone could still mess with the logfiles, recalculate the hashes, change the hash files, before uploading the results. I don't really see a way around that, though.

Edit:
Given that in this scenario the person doing the messing is also the person controlling the server, this is probably a complete non-issue, since that person can also just mess with the performance of the system as directly.