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So it has been known that sha1 is insecure for some time. Now that there are practical collision attacks a possible exploit would be to flip a bit on a git commit and have the hash remain constant, introducing a vulnerability which could then be delivered via foxacid. How often is the linux repo cloned, for example, and how many downstream systems could be infected? (a lot)
A workaround might be to routinely gpg sign git commits, but really git should move to a better hash.
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@bob Are signed commits checked automatically? If not, it wouldn't be very useful in this case.
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@drymer on github they are. I don't know if they're in gogs yet
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@bob Gitea doesn't, it seems.