[donaldstufft]

Nobody at PyPI is opposed to package signing, and removing or minimizing the damage that compromised infrastructure can do.

However, GPG is not a good tool to build those features on top of, and the vestigial support for GPG signing that PyPI had in no way aided the long term efforts to get proper, secure package signing into PyPI.

[zzzeek]

maybe your blog post can use a little extra line at the end that says, one of these three things:

1. "Nobody at Pypi is opposed to package signing, so long term here is the technology we want to use for this: XYZ..."

2. "Nobody at Pypi is opposed to package signing, however after years of discussion there seem to be no feasible ways of doing this, so going forward there are no plans to actually add package signing" (refer to @tptacek's post at https://news.ycombinator.com/item?id=36048373 which seems to claim there are many, IIRC)

3. "Nobody at Pypi is opposed to package signing, however we simply don't have the resources to implement any new approaches. We would require a grant of $X million dollars to hire people do do this (which would be using technology XYZ)"

is there a choice 4?

[donaldstufft]

The current expectation is it will be a combination of sigstore and TUF, but if someone proposes something better then we're open to that.

Implementing those things takes time though.

[zimmerfrei]

And why exactly should pypi implement it?

Pypi should just be the organized repository of packages, with only some limited assurance over their authenticity. That is, pypi should just let authors upload signatures and metadata.

Something else, something to plug into pip (taking into account also the bootstrap problem), should be responsible for validating the signatures and providing assurance over identities.

People that just want TOFU will use that one plugin. People that trust Microsoft will use the github plugin. People that trust pypi also for identity, will use maybe what you will write when you have time for it. Maybe a popular plugin will allow people to choose many IdPs. Over time, the community will converge and that may be adopted as de facto standard.

But your choice of removing PGP signatures (as on type of signature) is now making that impossible, and you intend to decide in the future for others what the only blessed verification mechanism is (also, with no indication of when that will happen).

[donaldstufft]

Well PGP signatures has been part of PyPI for 18 years now, if someone was going to build a secure system on top of that, they would have by now.

PyPI should implement it though, because fundamentally the question of who is authorized to release for "requests" on PyPI is a question of who PyPI authorizes to release for that.

[oxfordmale]

The problem is that package signing is removed without providing an alternative. I am not volunteering to this project, so will quietly sit in the corner.