On Tue, Feb 23, 2016 at 5:39 AM, Jon Ribbens
<jon+use...@unequivocal.co.uk> wrote:
> On 2016-02-22, Chris Angelico <ros...@gmail.com> wrote:
>> On Tue, Feb 23, 2016 at 5:17 AM, Jon Ribbens
>><jon+use...@unequivocal.co.uk> wrote:
>>> Weeeeeell, I have a lot of sympathy for that point, but on the other
>>> hand the whole concept of UUIDs ("import uuid") is predicated on the
>>> opposite assumption.
>>
>> Not quite opposite. Ethan is asserting that you cannot be *certain*
>> without actually checking the FS; the point of UUIDs is that you can
>> be fairly *confident* that there won't be a collision. There is a
>> nonzero probability of accidental collisions, and if an attacker is
>> deliberately trying to _force_ a collision, it's most definitely
>> possible. So both views are correct.
>
> I was under the impression that the point of UUIDs is that you can be
> *so* confident that there won't be a collision that for all practical
> purposes it's indistinguishable from being certain.Maybe, if everyone's cooperating. I'm not sure how they fare in the face of malice though. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
