Re: SHA1 collisions found

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On Thu, Feb 23, 2017 at 11:43 PM, Joey Hess <id@xxxxxxxxxx> wrote:
> IIRC someone has been working on parameterizing git's SHA1 assumptions
> so a repository could eventually use a more secure hash. How far has
> that gotten? There are still many "40" constants in git.git HEAD.

Michael asked Brian (that "someone") the other day and he replied [1]

>> I'm curious; what fraction of the overall convert-to-object_id campaign
>> do you estimate is done so far? Are you getting close to the promised
>> land yet?
>
> So I think that the current scope left is best estimated by the
> following command:
>
>   git grep -P 'unsigned char\s+(\*|.*20)' | grep -v '^Documentation'
>
> So there are approximately 1200 call sites left, which is quite a bit of
> work.  I estimate between the work I've done and other people's
> refactoring work (such as the refs backend refactor), we're about 40%
> done.

[1] http://public-inbox.org/git/%3C20170217214513.giua5ksuiqqs2laj@xxxxxxxxxxxxxxxxxxxxxxxxxx%3E/
-- 
Duy



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