[Catalog-sig] [Python-Dev] accept the wheel PEPs 425, 426, 427

M.-A. Lemburg mal at egenix.com
Tue Nov 13 11:26:50 CET 2012


On 13.11.2012 10:51, "Martin v. Löwis" wrote:
> Am 13.11.12 03:04, schrieb Nick Coghlan:
>> On Mon, Oct 29, 2012 at 4:47 AM, Daniel Holth <dholth at gmail.com
>> <mailto:dholth at gmail.com>> wrote:
>>
>>     I think Metadata 1.3 is done. Who would like to czar?
>>
>> (Apologies for the belated reply, it's been a busy few weeks)
>>
>> I'm happy to be BDFL delegate for these. I'd like to see PEP 425 updated
>> with some additional rationale based on Ronald's comments later in this
>> thread, though.
> 
> For the record, I'm still -1 on PEP 427, because of the signature issues.
> 
> The FAQ in the PEP is incorrect in claiming PGP or X.509 cannot
> readily be used to verify the integrity of an archive - the whole
> point of these technologies is to do exactly that.
> 
> The FAQ is entirely silent on why it is not using a more standard
> signature algorithm such as ECDSA. It explains why it uses Ed25519,
> but ignores that the very same rationale would apply to ECDSA as well;
> plus that would be one of the standard JWS algorithms.
> 
> In addition, the FAQ claims that the format is designed to introduce
> cryptopgraphy that is actually used, yet leaves the issue of key
> distribution alone (except that pointing out that you can put them
> into requires.txt - a file that doesn't seem to be specified anywhere).

I agree with Martin. If the point is to "to protect against cryptography
that is not used", then not using the de-facto standard in signing
open source distribution files, which today is PGP/GPG, misses that
point :-)

Note that signing such distribution files can be handled outside
of the wheel format PEP. It just way to complex and out of scope
for the wheel format itself. Also note that PGP/GPG and the other
signing tools work well on any distribution file. There's really no
need to build these into the format itself.

It's a good idea to check integrity, but that can be done using
hashes.

-- 
Marc-Andre Lemburg
eGenix.com

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