[issue46159] Segfault when using trace functions in 3.11a3

2022-02-07 Thread Alex Gaynor


Alex Gaynor  added the comment:

It seems to no longer be crashing with alpha5. Hopefully it's actually fixed 
and not merely having a more subtle failure mode.

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[issue42982] Update suggested number of iterations for pbkdf2_hmac()

2022-01-25 Thread Alex Gaynor


Alex Gaynor  added the comment:

Sticking with 100k is not scientific though ;-) Empiricism is science!

I'm probably the person responsible for Django's process, which is to increase 
by some % (10% or 20% IIRC) every release.

As you point out, the exact value one should use is a function of context, 
which we don't have as documentation authors. However, what we can do is try to 
select a value that's most likely to be practical for many users and will 
in-turn protect their users data most. 100k isn't that value, and taking 
inspiration from places that have had their values tested by many users is 
intuitive to me.

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[issue46159] Segfault when using trace functions in 3.11a3

2021-12-22 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue45459] Limited API support for Py_buffer

2021-11-22 Thread Alex Gaynor


Alex Gaynor  added the comment:

I am someone who is interested in having this, but FWIW my motivation is 
slightly more narrow, I only really need abi3-friendly buffer support with 
contiguous 1d buffers. Not sure if there'd be interest in doing a smaller 
version before figuring out the entire Py_buffer API.

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[issue42486] Investigate docs.python.org egregious SEO performance on Google

2020-11-27 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue42415] python3.lib in Python3.9.0 Windows distribution does not contain PyObject_CallNoArgs symbol

2020-11-19 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue42415] python3.lib in Python3.9.0 Windows distribution does not contain PyObject_CallNoArgs symbol

2020-11-19 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue42415] python3.lib in Python3.9.0 Windows distribution does not contain PyObject_CallNoArgs symbol

2020-11-19 Thread Alex Gaynor


Alex Gaynor  added the comment:

This looks like a bug to me. While 
https://github.com/python/cpython/commit/2ff58a24e8a1c7e290d025d69ebaea0bbead3b8c
 added it to the header, it did not add it to 
https://github.com/python/cpython/blob/master/PC/python3dll.c which is required.

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[issue41845] Promote PyObject_GenericGetDict to the stable API

2020-09-23 Thread Alex Gaynor


New submission from Alex Gaynor :

Currently PyObject_GenericSetDict is part of the stable API, but 
PyObject_GenericGetDict is not. I noticed this while working on 
https://github.com/PyO3/pyo3/pull/1207

Because of the symmetry here, it seems appropriate to promote Get.

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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-18 Thread Alex Gaynor


Alex Gaynor  added the comment:

It's a big project I think :-) Py_Buffer is allocated on the stack, so either 
we'd have to agree to never change it's ABI (size, alignment, etc.) or we'd 
need to completely change the interface.

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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-16 Thread Alex Gaynor


Alex Gaynor  added the comment:

Py_buffer is not part of the limited API at all, so I don't think it's usable 
for this.

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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-15 Thread Alex Gaynor


Alex Gaynor  added the comment:

I think less is more, one API is plenty :-)

It looks to me like the API is already supported on PyPy, so I think it's fine 
from that perspective: 
https://foss.heptapod.net/pypy/pypy/-/blob/branch/py3.7/pypy/module/cpyext/unicodeobject.py#L493

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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-14 Thread Alex Gaynor


Change by Alex Gaynor :


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pull_requests: +21307
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/22252

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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-14 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue41784] Promote PyUnicode_AsUTF8AndSize to be available with the limited API (PEP 384)

2020-09-14 Thread Alex Gaynor


New submission from Alex Gaynor :

This function is incredibly useful for efficient interoperability between 
Python and other languages with UTF-8 based strings (e.g. Rust). Right now it's 
not possible to do interop without several copies/allocations if you're trying 
to build an abi3 wheel. This is tactically relevant to me here: 
https://github.com/PyO3/pyo3/issues/1125

This API has been stable since it was introduced in Python 3.1, so I think 
making it stable would be appropriate.

Inada, Benjamin suggested I should ask you for your feedback on this. I'm happy 
to send a pull request.

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type: enhancement

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[issue40176] unterminated string literal tokenization error messages could be better

2020-04-03 Thread Alex Gaynor


Alex Gaynor  added the comment:

Here's my suggestion:

End of line reached without finding the end of string literal. Are you missing 
a closing quote?

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[issue39421] Use-after-free in heappushpop() of heapq module

2020-01-23 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue37461] email.parser.Parser hang

2019-07-14 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

2018-11-12 Thread Alex Gaynor


Alex Gaynor  added the comment:

All libraries that are linked against, including libc, need to be compiled with 
MSAN. MSAN is not for the faint of heart.

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[issue35214] Get the test suite passing with clang Memory Sanitizer enabled

2018-11-12 Thread Alex Gaynor


Change by Alex Gaynor :


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[issue33661] urllib may leak sensitive HTTP headers to a third-party web site

2018-05-27 Thread Alex Gaynor

Change by Alex Gaynor <alex.gay...@gmail.com>:


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[issue991266] Cookie.py does not correctly quote Morsels

2018-04-19 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

None of the above :-) I'd expect the last one, but with quoting.

You should not be able to set fields in a cookie by injection.

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[issue991266] Cookie.py does not correctly quote Morsels

2018-04-19 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

Berker your patch looks good to me.

Convert it to a PR and then merge?

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[issue29613] Support for SameSite Cookies

2018-04-08 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

Good catch.

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[issue29613] Support for SameSite Cookies

2018-04-07 Thread Alex Gaynor

Change by Alex Gaynor <alex.gay...@gmail.com>:


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status: open -> closed

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[issue29613] Support for SameSite Cookies

2018-04-07 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:


New changeset c87eb09d2e3783b0b5dc0d7cb304050cbcc86ad3 by Alex Gaynor in branch 
'master':
bpo-29613: Added support for SameSite cookies (GH-6413)
https://github.com/python/cpython/commit/c87eb09d2e3783b0b5dc0d7cb304050cbcc86ad3


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[issue29613] Support for SameSite Cookies

2018-04-07 Thread Alex Gaynor

Change by Alex Gaynor <alex.gay...@gmail.com>:


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pull_requests: +6118

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[issue32819] match_hostname() error reporting bug

2018-02-24 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

(Didn't mean to update status)

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[issue32819] match_hostname() error reporting bug

2018-02-24 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

Can confirm, no browsers do partial (or multiple) wildcards and the CABF rules 
don't allow public CAs to issue them.

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[issue2506] Add mechanism to disable optimizations

2017-10-11 Thread Alex Gaynor

Alex Gaynor <alex.gay...@gmail.com> added the comment:

If anyone has needed a workaround in the past 9 years and hasn't yet found one: 
https://github.com/pyca/cryptography/pull/3968/commits/3b585f803891e750d0ca5861b5a29e16b779bc16

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[issue23239] SSL match_hostname does not accept IP Address

2017-09-27 Thread Alex Gaynor

Alex Gaynor <agay...@mozilla.com> added the comment:

I'd be in favor of backporting this to the 2.x - encouraging reliance on the 
nonsense behaviour of putting IPAddresses in DNS Names or relying on CN over 
SAN is bad, and we shouldn't encourage it.

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[issue31453] ssl.PROTOCOL_TLS only select TLSv1.2

2017-09-13 Thread Alex Gaynor

Alex Gaynor added the comment:

What operating system are you on?

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[issue25115] SSL_set_verify_depth not exposed by the ssl module

2017-09-12 Thread Alex Gaynor

Alex Gaynor added the comment:

For the use case of "I want to trust this CA, but I don't want to trust any of 
it's sub CAs" I think there's a simpler solution than expanding our API:

Create your own cross-sign of the root you want, and add a pathLenConstraint: 0 
to the basicConstraints extension.

By create a cross-sign, I mean a new certificate with the same 
subject/SPKI/SKI/other-extensions, but instead of being self-signed, sign it 
under some random private key you throw away. And then use that as your trust 
root, instead of the original certificate.

This should work fine for validation.

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[issue27815] Make SSL suppress_ragged_eofs default more secure

2017-09-08 Thread Alex Gaynor

Alex Gaynor added the comment:

Mmmm, my understanding is that ignoring TCP-FIN/RST-without-TLS-closenotify is 
pretty common for a lot of different clients.

We should probably survey the landscape, see what both browsers and non-browse 
clients (e.g. curl) do before making a decision.

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[issue29824] Hostname validation in SSL match_hostname()

2017-09-06 Thread Alex Gaynor

Alex Gaynor added the comment:

An additional problem in (2) is that a cert for *.google _is_ legal if the CA 
can prove that a single organization controls the entire TLD:

https://crt.sh/?id=7668286

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[issue25115] SSL_set_verify_depth not exposed by the ssl module

2017-09-06 Thread Alex Gaynor

Alex Gaynor added the comment:

+1 on making sure we have a concrete use case before expanding the API

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[issue28938] match_hostname treats SAN IP address as DNS name and fails to check CN then

2017-09-05 Thread Alex Gaynor

Alex Gaynor added the comment:

+1 Christian, we should not be expanding our usage of CNs at all.

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[issue28414] SSL match_hostname fails for internationalized domain names

2017-08-06 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue28414] SSL match_hostname fails for internationalized domain names

2017-08-06 Thread Alex Gaynor

Alex Gaynor added the comment:

This came up on m.d.s.p. today: 
https://groups.google.com/d/msg/mozilla.dev.security.policy/K3sk5ZMv2DE/fx6c3WWFBgAJ

I haven't dug in deeply, but it sounds like we handle IDNs in CNs and SANs 
differently?

I think we should look for a way to solve that specific problem, without biting 
off the whole thing -- one solution would be to simply drop support for CNs in 
match_hostname, as both Chrome and Firefox have already done :-)

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[issue30879] os.listdir(bytes) gives a list of bytes, but os.listdir(buffer) gives a list of unicodes

2017-07-08 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue30319] Change socket.close() to ignore ECONNRESET

2017-07-04 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue30525] Expose SCTs on TLS connections

2017-05-31 Thread Alex Gaynor

New submission from Alex Gaynor:

CT (https://www.certificate-transparency.org/) is starting to become a thing! 
It'd be great if we exposed SCTs (whether from TLS extensions, OCSP, or 
embedded in the certificate) for TLS connections. This would allow higher level 
protocols to begin acting on them.

This would need to be an OpenSSL 1.1.0+ feature.

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messages: 294838
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priority: normal
severity: normal
status: open
title: Expose SCTs on TLS connections
versions: Python 3.7

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[issue30511] shutil.make_archive should not need to chdir (alternatively: make shutil.make_archive thread-safe)

2017-05-30 Thread Alex Gaynor

Alex Gaynor added the comment:

Ugh, except via |register_archive_format|. |register_archive_format| could wrap 
callables passed to it to maintain the current behavior.

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[issue30511] shutil.make_archive should not need to chdir (alternatively: make shutil.make_archive thread-safe)

2017-05-30 Thread Alex Gaynor

Alex Gaynor added the comment:

None of those functions are a public API, so changing them shouldn't be a 
problem IMO.

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[issue30511] shutil.make_archive should not need to chdir (alternatively: make shutil.make_archive thread-safe)

2017-05-30 Thread Alex Gaynor

New submission from Alex Gaynor:

Currently shutil.make_archive uses os.chdir, however there's no need for that. 
Everything that's done could be equally accomplished with path manipulation:

https://github.com/python/cpython/blob/master/Lib/shutil.py#L773-L779

We should switch to using path manipulation in order to make 
shutil.make_archive thread safe.

(Flag: This is probably a good bug for someone with Python skills interested in 
contributing to CPython!)

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title: shutil.make_archive should not need to chdir (alternatively: make 
shutil.make_archive thread-safe)
versions: Python 2.7, Python 3.7

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[issue30420] Clarify kwarg handing for subprocess convenience APIs

2017-05-20 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue18617] AIA chasing for missing intermediate certificates on TLS connections

2017-05-17 Thread Alex Gaynor

Alex Gaynor added the comment:

Just discussed with Christian, and we're both in favor of adding AIA chasing 
support to the stdlib ssl.

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[issue29810] Rename ssl.Purpose.{CLIENT,SERVER}_AUTH

2017-03-14 Thread Alex Gaynor

Alex Gaynor added the comment:

Sounds good to me!

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[issue29810] Rename ssl.Purpose.{CLIENT,SERVER}_AUTH

2017-03-14 Thread Alex Gaynor

Alex Gaynor added the comment:

Ah, so instead of PROTOCOL_SSLv23 using PROTOCOL_TLS_CLIENT and deprecating the 
Purpose bits entirely? That sounds good to me!

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[issue29810] Rename ssl.Purpose.{CLIENT,SERVER}_AUTH

2017-03-14 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue29810] Rename ssl.Purpose.{CLIENT,SERVER}_AUTH

2017-03-14 Thread Alex Gaynor

New submission from Alex Gaynor:

The names are super misleading. First, they're written in a way that's the 
opposite of how people think about these things (CLIENT_AUTH -> server socket; 
SERVER_AUTH -> client socket). Second, they're misleading, you can have TLS 
which is *mutually* authenticated. Third, CLIENT_AUTH is very frequently used 
for a server socket where the client isn't authenticated (at the TLS layer) at 
all!

A simple fix would be to add: Purpose.{CLIENT,SERVER}_SOCKET and alias the old 
names to those values.

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title: Rename ssl.Purpose.{CLIENT,SERVER}_AUTH

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[issue23606] ctypes.util.find_library("c") no longer makes sense

2017-03-10 Thread Alex Gaynor

Alex Gaynor added the comment:

Yeah, this got me (happy to explain what I was trying to do in more detail, if 
it'd be helpful), took me longer to understand why my tests passed on 
{26,27,33,34} but failed on 35 since the public "what's changed" docs page is 
where I went to.

Ultimately I discovered the root cause when I started reading the 
find_library() source code, and found this issue :-)

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[issue23606] ctypes.util.find_library("c") no longer makes sense

2017-03-10 Thread Alex Gaynor

Alex Gaynor added the comment:

An FYI for the future, it would have been very helpful if this had been 
documented in the whats-changed file for 3.5.

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[issue29505] Submit the re, json, & csv modules to oss-fuzz testing

2017-02-17 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue11549] Build-out an AST optimizer, moving some functionality out of the peephole optimizer

2017-02-06 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue29136] Add OP_NO_TLSv1_3

2017-01-23 Thread Alex Gaynor

Alex Gaynor added the comment:

We can easily just add `TLS13:...` at the from of our ciphersuite list and 
it'll be ok though right? (Note to self, do the same in urllib3, twisted, 
requests, god only knows what else)

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[issue28854] FIPS mode causes dead-lock in ssl module

2016-12-01 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue28275] LZMADecompressor.decompress Use After Free

2016-09-25 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue28275] LZMADecompressor.decompress Use After Free

2016-09-25 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue28248] Upgrade installers to OpenSSL 1.0.2i

2016-09-22 Thread Alex Gaynor

New submission from Alex Gaynor:

https://www.openssl.org/news/secadv/20160922.txt

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keywords: security_issue
messages: 277226
nosy: alex, christian.heimes, dstufft, janssen, ned.deily, paul.moore, 
ronaldoussoren, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Upgrade installers to OpenSSL 1.0.2i
versions: Python 2.7, Python 3.5, Python 3.6, Python 3.7

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[issue27928] Add hashlib.scrypt

2016-09-07 Thread Alex Gaynor

Alex Gaynor added the comment:

OpenSSL supports scrypt

On Sep 7, 2016 12:28 PM, "Benjamin Peterson" <rep...@bugs.python.org> wrote:

>
> Benjamin Peterson added the comment:
>
> Why are we adding scrypt and not argon2 anyway?
>
> On Wed, Sep 7, 2016, at 03:25, Christian Heimes wrote:
> >
> > Christian Heimes added the comment:
> >
> > Benjamin, what's your take on Alex's suggestion?
> >
> >  gutworth: Alex_Gaynor has asked me if hashlib.scrypt() can go into
> > 2.7, too. It's a password-based KDF like hashlib.pbkdf2() but more secure
> > than PBKDF2. It requires OpenSSL 1.1.0.
> >  gutworth: I think it'd be good if this were approved, for
> > the same reasons as PEP466
> >  contrary to PKBDF2 it doesn't make sense to have a pure-Python
> > implementation. scrypt uses ChaCha20 cipher. I don't want to add a cipher
> > to CPython core (possible legal issue) and it's not available in OpenSSL
> > < 1.1.0.
> >
> > --
> > nosy: +benjamin.peterson
> > versions: +Python 2.7
> >
> > ___
> > Python tracker <rep...@bugs.python.org>
> > <http://bugs.python.org/issue27928>
> > ___
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> ___
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[issue27928] Add hashlib.scrypt

2016-09-07 Thread Alex Gaynor

Alex Gaynor added the comment:

PEP466 includes hashlib.pbkdf2_hmac(). Any reasoning that includes that surely 
is applicable to scrypt as well.

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[issue27928] Add hashlib.scrypt

2016-09-02 Thread Alex Gaynor

Alex Gaynor added the comment:

Bug in the error message "n must be a multiple of 2." it should say "n must be 
a power of 2."

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[issue26470] Make OpenSSL module compatible with OpenSSL 1.1.0

2016-08-26 Thread Alex Gaynor

Alex Gaynor added the comment:

- The 2.7 patch contains numerous references to 3.6, these should be rewritten 
to 2.7.x
-

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[issue27850] Remove 3DES from cipher list (sweet32 CVE-2016-2183)

2016-08-24 Thread Alex Gaynor

Alex Gaynor added the comment:

+! from me, removing 3DES is a totally sane default, people who need IE8+XP 
compat can change the default.

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[issue27768] ssl: add public API for IA-32 processor capabilities vector

2016-08-22 Thread Alex Gaynor

Alex Gaynor added the comment:

In this case, performance is security. Both AES-GCM and ChaCha20-Poly1305 are 
secure. Modulo one thing: GCM in software is hard to implement in 
constant-time, so it's strongly preferable to use it only when there's a 
hardware implementation. It works out nicely that in addition to being 
constant-time, the hardware implementation of GCM is faster.

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[issue27766] Add ChaCha20 Poly1305 to SSL ciphers

2016-08-15 Thread Alex Gaynor

Alex Gaynor added the comment:

Exposing it in some way would be good, but we can make that a seperate issue.

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[issue27766] Add ChaCha20 Poly1305 to SSL ciphers

2016-08-15 Thread Alex Gaynor

Alex Gaynor added the comment:

Simply doing AES-GCM before ChaCha20 is probably the simplest thing to start 
with, can always get fancier later.

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[issue27766] Add ChaCha20 Poly1305 to SSL ciphers

2016-08-15 Thread Alex Gaynor

Alex Gaynor added the comment:

So, for servers really what we care about is if the _client_ has 
PCLMULQDQ/AESNI, not whether the server itself does. Unfortunately, there's no 
sane way to do this.

Haven't reviewed this patch in terribly much detail, but conceptually fine. 
Cory, we should make sure this type of change propogates its way through 
requests, urllib3, hynek's blog post, and whatever else has a copy-pasted 
ciphersuite string.

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[issue27592] FIPS_mode() and FIPS_mode_set() functions in Python (ssl)

2016-07-22 Thread Alex Gaynor

Alex Gaynor added the comment:

I'm opposed to adding FIPS knobs to Python's SSL module for a few reasons:

- FIPS is a bad standard (which I'm happy to talk at length about)
- OpenSSL is regularly on the verge of dropping FIPS support 
(https://www.openssl.org/blog/blog/2016/07/20/fips/ is the most recent rescue 
from the brink of removal)
- It further ties us to the OpenSSL API, in favor of being a more general 
purpose SSL API.

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[issue26839] Python 3.5 running on Linux kernel 3.17+ can block at startup or on importing the random module on getrandom()

2016-06-07 Thread Alex Gaynor

Alex Gaynor added the comment:

Colm -- how is that situation not addressed by fixing the hash seed generation 
specifically, rather than patching all consumers of os.urandom?

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[issue27249] Add os.urandom_info

2016-06-07 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue27250] Add os.urandom_block()

2016-06-07 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue26839] Python 3.5 running on Linux kernel 3.17+ can block at startup or on importing the random module on getrandom()

2016-06-07 Thread Alex Gaynor

Alex Gaynor added the comment:

Repeating what a few other folks have said: the of os.urandom's callers 
shouldn't have to pay for the hash seed implementation. If Python internally is 
ok with suboptimal entropy, it should use a different function. Or early-boot 
Python users should set PYTHONHASHSEED.

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[issue26839] Python 3.5 running on Linux kernel 3.17+ can block at startup or on importing the random module on getrandom()

2016-06-07 Thread Alex Gaynor

Alex Gaynor added the comment:

This doesn't look correct to me. Despite what the Linux maintainers insist, 
it's a _bug_ that /dev/urandom will return immediately if the system's entropy 
pool has never been seeded; one of the whole points of the getrandom syscall is 
that it has the correct behavior (which is the same behavior as BSDs).

IMO the patch landed this morning should be reverted and it should be left as 
is.

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[issue26930] Upgrade installers to OpenSSL 1.0.2h

2016-05-03 Thread Alex Gaynor

New submission from Alex Gaynor:

https://www.openssl.org/news/secadv/20160503.txt

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messages: 264731
nosy: alex, ned.deily, paul.moore, ronaldoussoren, steve.dower, tim.golden, 
zach.ware
priority: normal
severity: normal
status: open
title: Upgrade installers to OpenSSL 1.0.2h

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[issue26798] add BLAKE2 to hashlib

2016-04-18 Thread Alex Gaynor

Alex Gaynor added the comment:

Right now all the hashlib algorithms are backed by OpenSSL. OpenSSL 1.1.0 will 
have blake2, so perhaps the right move is just to wait for that to drop in a 
few weeks?

Sadly many users with old OpenSSL's still won't have blake2, but pretty quickly 
Windows and OS X users will get blake2!

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[issue26465] Upgrade OpenSSL shipped with python installers

2016-03-02 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue26465] Upgrade OpenSSL shipped with python installers

2016-03-01 Thread Alex Gaynor

New submission from Alex Gaynor:

https://openssl.org/news/secadv/20160301.txt

--
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messages: 261052
nosy: alex, paul.moore, steve.dower, tim.golden, zach.ware
priority: critical
severity: normal
status: open
title: Upgrade OpenSSL shipped with python installers
versions: Python 2.7, Python 3.2, Python 3.3, Python 3.4, Python 3.5, Python 3.6

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[issue26242] reST formatting error in Doc/library/importlib.rst

2016-01-30 Thread Alex Gaynor

New submission from Alex Gaynor:

https://hg.python.org/cpython/file/default/Doc/library/importlib.rst#l1124

the spacing is wrong, it should be:

.. versionchanged:: 3.5

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priority: normal
severity: normal
status: open
title: reST formatting error in Doc/library/importlib.rst
versions: Python 3.5

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[issue26066] Language on the "Cryptographic Services" is out of date

2016-01-09 Thread Alex Gaynor

New submission from Alex Gaynor:

https://docs.python.org/2/library/crypto.html
https://docs.python.org/3/library/crypto.html

This language has a number of issues:
- Crypto isn't just for "Hardcore cypherpunks" anymore, it's a necessary 
component of a great many software projects
- PyCrypto isn't maintained by A.M. Kuchling any longer
- (IMO) it's no longer the recommended library for cryptography in Python
- The page should probably also point people towards the ssl module.

--
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messages: 257857
nosy: alex, docs@python
priority: normal
severity: normal
status: open
title: Language on the "Cryptographic Services" is out of date
versions: Python 2.7, Python 3.5, Python 3.6

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[issue26066] Language on the "Cryptographic Services" documentation page is out of date

2016-01-09 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


--
title: Language on the "Cryptographic Services" is out of date -> Language on 
the "Cryptographic Services" documentation page is out of date

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[issue25940] SSL tests failed due to expired svn.python.org SSL certificate

2015-12-25 Thread Alex Gaynor

Alex Gaynor added the comment:

I agree the tests shouldn't rely on a legacy domain like svn.python.org

In the mean time Ernest is working on getting a valid cert set up.

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[issue25940] SSL tests failed due to expired svn.python.org SSL certificate

2015-12-25 Thread Alex Gaynor

Alex Gaynor added the comment:

There's good news and bad news, which do you want first?

Good news, great!

svn.python.org now has a certificate that's not expired, and it's even trusted 
by major trust stores.

Bad news?

The tests rely on the cert for svn.python.org specifically be a cacert one. IMO 
this is a bug in the tests and should be fixed.

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[issue25578] Memory leak in SSLSocket.getpeercert() with 0-length AIA extension

2015-11-14 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-14 Thread Alex Gaynor

Alex Gaynor added the comment:

fixed

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[issue25613] fix ssl tests with sslv3 disabled

2015-11-12 Thread Alex Gaynor

Alex Gaynor added the comment:

Does this issue still occur on default? 
https://hg.python.org/cpython/rev/d80954d941c7

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[issue25578] Memory leak in SSLSocket.getpeercert() with 0-length AIA extension

2015-11-07 Thread Alex Gaynor

New submission from Alex Gaynor:

Test.

Put this certificate in a file:

-BEGIN CERTIFICATE-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-END CERTIFICATE-


And run this script:

import _ssl

def main():
while True:
_ssl._test_decode_cert("/path/to/cert.pem")

main()


Patch is attached

--
files: aia.diff
keywords: needs review, patch
messages: 254275
nosy: alex, christian.heimes, dstufft, giampaolo.rodola, janssen, pitrou
priority: normal
severity: normal
status: open
title: Memory leak in SSLSocket.getpeercert() with 0-length AIA extension
versions: Python 2.7, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file40973/aia.diff

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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-06 Thread Alex Gaynor

Alex Gaynor added the comment:

Tests pass and the original script runs without a leak using this patch. It 
could probably be shorter if we converted from local returns to `goto fail` or 
something, but I don't really have an opinion.

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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-06 Thread Alex Gaynor

New submission from Alex Gaynor:

Run the following code:

import socket
import ssl
import sys


def main():
ctx = ssl.create_default_context()
s = socket.create_connection(('www.bing.com', 443))
s = ctx.wrap_socket(s, server_hostname='www.bing.com')
while True:
s.getpeercert()

sys.stderr.write('.')
sys.stderr.flush()


if __name__ == '__main__':
main()



and observe memory usage, you'll see it increases by a MB/s or so.

--
messages: 254210
nosy: alex
priority: normal
severity: normal
status: open
title: Memory leak in SSLSocket.getpeercert()
versions: Python 2.7, Python 3.5, Python 3.6

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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-06 Thread Alex Gaynor

Changes by Alex Gaynor <alex.gay...@gmail.com>:


--
nosy: +christian.heimes, dstufft, giampaolo.rodola, janssen, pitrou

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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-06 Thread Alex Gaynor

Alex Gaynor added the comment:

A probably source of the leak is here: 
https://github.com/python/cpython/blob/master/Modules/_ssl.c#L1073-L1076 `dps` 
is never freed. (This is with OpenSSL 0.9.8zg)

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[issue25569] Memory leak in SSLSocket.getpeercert()

2015-11-06 Thread Alex Gaynor

Alex Gaynor added the comment:

I think you want sk_DIST_POINT_free actually.

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[issue25530] ssl: OP_NO_SSLv3 should always be set unless a user specifically asks for it

2015-11-02 Thread Alex Gaynor

Alex Gaynor added the comment:

Oops, there were a few failing tests on that patch. New one is green

--
Added file: http://bugs.python.org/file40927/sslv3.diff

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[issue25530] ssl: OP_NO_SSLv3 should always be set unless a user specifically asks for it

2015-11-01 Thread Alex Gaynor

New submission from Alex Gaynor:

SSLv3 is broken, both _create_unverified_context and create_default_context 
turn it off, but we should make all contexts turn it off, like we do for SSLv2.

A patch is attached.

--
components: Library (Lib)
files: sslv3.diff
keywords: needs review, patch, security_issue
messages: 253868
nosy: alex, christian.heimes, dstufft, giampaolo.rodola, janssen, pitrou
priority: normal
severity: normal
status: open
title: ssl: OP_NO_SSLv3 should always be set unless a user specifically asks 
for it
versions: Python 2.7, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file40920/sslv3.diff

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[issue25515] Always use os.urandom for generating uuid4s

2015-10-29 Thread Alex Gaynor

Alex Gaynor added the comment:

(Note that the speed difference would be even bigger on a recent python, 2.7.3 
was before the file descriptor was cached for os.urandom)

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[issue25515] Always use os.urandom for generating uuid4s

2015-10-29 Thread Alex Gaynor

New submission from Alex Gaynor:

Right now uuid4 can be implemented one of 3 ways:

- If there's a libuuid (and it's not OS X's) it uses that.
- Fallback to os.urandom
- If that raises an exception, fall back to the random module

I propose to simplify this to _just_ use os.urandom always. Reasons:

- Its security properties are more obviously correct. (There's a large comment 
in uuid.py about how libuuid doees the wrong thing with fork on OS X, who knows 
if it's correct on other platforms)
- It's simpler.
- It's faster:

a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"_buffer = ctypes.create_string_buffer(16); 
uuid._uuid_generate_random(_buffer); bytes(_buffer.raw)"
10 loops, best of 3: 10 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"_buffer = ctypes.create_string_buffer(16); 
uuid._uuid_generate_random(_buffer); bytes(_buffer.raw)"
10 loops, best of 3: 10.3 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"_buffer = ctypes.create_string_buffer(16); 
uuid._uuid_generate_random(_buffer); bytes(_buffer.raw)"
10 loops, best of 3: 9.99 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"_buffer = ctypes.create_string_buffer(16); 
uuid._uuid_generate_random(_buffer); bytes(_buffer.raw)"
10 loops, best of 3: 10.2 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"_buffer = ctypes.create_string_buffer(16); 
uuid._uuid_generate_random(_buffer); bytes(_buffer.raw)"
10 loops, best of 3: 10.2 usec per loop
a_gaynor@miranda:~$
a_gaynor@miranda:~$
a_gaynor@miranda:~$
a_gaynor@miranda:~$
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"os.urandom(16)"
10 loops, best of 3: 8.94 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"os.urandom(16)"
10 loops, best of 3: 8.92 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"os.urandom(16)"
10 loops, best of 3: 8.97 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"os.urandom(16)"
10 loops, best of 3: 8.93 usec per loop
a_gaynor@miranda:~$ python -mtimeit -s "import uuid; import os; import ctypes" 
"os.urandom(16)"
10 loops, best of 3: 8.94 usec per loop
a_gaynor@miranda:~$
a_gaynor@miranda:~$
a_gaynor@miranda:~$ python --version
Python 2.7.3

--
components: Library (Lib)
files: uuid.diff
keywords: needs review, patch
messages: 253697
nosy: alex, dstufft
priority: normal
severity: normal
status: open
title: Always use os.urandom for generating uuid4s
versions: Python 2.7, Python 3.5, Python 3.6
Added file: http://bugs.python.org/file40899/uuid.diff

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[issue24432] Upgrade windows builds to use OpenSSL 1.0.2b

2015-06-11 Thread Alex Gaynor

New submission from Alex Gaynor:

https://www.openssl.org/news/secadv_20150611.txt

--
components: Library (Lib)
keywords: security_issue
messages: 245173
nosy: alex, christian.heimes, dstufft, giampaolo.rodola, janssen, paul.moore, 
pitrou, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Upgrade windows builds to use OpenSSL 1.0.2b

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[issue24158] Error of the hint of upgrading pip

2015-05-10 Thread Alex Gaynor

Changes by Alex Gaynor alex.gay...@gmail.com:


--
nosy: +dstufft, ncoghlan

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[issue24107] Add support for retrieving the certificate chain

2015-05-01 Thread Alex Gaynor

Changes by Alex Gaynor alex.gay...@gmail.com:


--
nosy: +alex, christian.heimes, dstufft, giampaolo.rodola, janssen, pitrou

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