[TLS] Publication has been requested for draft-ietf-tls-exported-authenticator-13

2020-07-02 Thread Sean Turner via Datatracker
Sean Turner has requested publication of 
draft-ietf-tls-exported-authenticator-13 as Proposed Standard on behalf of the 
TLS working group.

Please verify the document's state at 
https://datatracker.ietf.org/doc/draft-ietf-tls-exported-authenticator/


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Re: [TLS] Closing WGLC (was Re: 3rd WGLC for draft-ietf-tls-exported-authenticators)

2020-07-02 Thread Sean Turner
Great! This document is now ready to progress to the AD.

spt

> On Jun 26, 2020, at 20:00, Nick Sullivan  wrote:
> 
> TLSWG and Chairs,
> 
> I've submitted draft -13 with the appropriate changes.
> 
> Best,
> Nick
> 
> On Tue, Jun 16, 2020 at 10:23 AM Sean Turner  wrote:
> Hi!
> 
> This message closes out the 3rd WGLC for 
> draft-ietf-tls-exported-authenticators. I have created GH issues for the two 
> issues raised during WGLC:
> https://github.com/tlswg/tls-exported-authenticator/issues/62
> https://github.com/tlswg/tls-exported-authenticator/issues/63
> Once addressed, and assuming the changes are not large, we will progress this 
> draft towards our AD.
> 
> I will put the draft in Waiting for WG Chair Go-Ahead / Revised I-D needed 
> awaiting resolution of the two issues.
> 
> spt (for the chairs)
> 
> > On Jun 5, 2020, at 07:29, Watson Ladd  wrote:
> > 
> > On Thu, Jun 4, 2020 at 9:48 PM Sean Turner  wrote:
> >> 
> >> Another reminder ...
> >> 
> >>> On May 22, 2020, at 09:23, Sean Turner  wrote:
> >>> 
> >>> This is the 3rd WGLC for "Exported Authenticators in TLS" draft available 
> >>> at 
> >>> https://datatracker.ietf.org/doc/draft-ietf-tls-exported-authenticator/. 
> >>> The secdir review during IETF LC raised some issues and as a result there 
> >>> have been a couple of new versions. Please respond to the list with any 
> >>> comments by 2359 UTC on 8 June 2020.
> > 
> > I've implemented earlier drafts. I do have a concern with the
> > validate API as presented in the draft: it treats empty authenticators
> > as valid, and then returns the identity as a certificate chain that
> > must be validated by the application. Similar APIs have lead to easily
> > foreseeable pwnage. Instead I would recommend the validate API carry
> > out X509 validation against a trust store or validation function and
> > treat the empty authenticator as invalid. That way someone has to
> > think before not checking the certificate returned.
> > 
> > Sincerely,
> > Watson Ladd
> 
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Re: [TLS] I-D Action: draft-ietf-tls-external-psk-guidance-00.txt

2020-07-02 Thread Sean Turner
Just a reminder to please have a look at this draft.

spt

> On Jun 19, 2020, at 23:39, Sean Turner  wrote:
> 
> Thanks to Chris for uploading the WG version of the draft.
> 
> If you have some time over the next couple of weeks please take the time to 
> review this draft. The intent is to issue a WGLC after IETF 108 barring any 
> discontent prior that.
> 
> spt
> 
>> On Jun 17, 2020, at 23:28, internet-dra...@ietf.org wrote:
>> 
>> 
>> A New Internet-Draft is available from the on-line Internet-Drafts 
>> directories.
>> This draft is a work item of the Transport Layer Security WG of the IETF.
>> 
>>   Title   : Guidance for External PSK Usage in TLS
>>   Authors : Russ Housley
>> Jonathan Hoyland
>> Mohit Sethi
>> Christopher A. Wood
>>  Filename: draft-ietf-tls-external-psk-guidance-00.txt
>>  Pages   : 12
>>  Date: 2020-06-17
>> 
>> Abstract:
>>  This document provides usage guidance for external Pre-Shared Keys
>>  (PSKs) in TLS.  It lists TLS security properties provided by PSKs
>>  under certain assumptions and demonstrates how violations of these
>>  assumptions lead to attacks.  This document also discusses PSK use
>>  cases, provisioning processes, and TLS stack implementation support
>>  in the context of these assumptions.  It provides advice for
>>  applications in various use cases to help meet these assumptions.
>> 
>> 
>> The IETF datatracker status page for this draft is:
>> https://datatracker.ietf.org/doc/draft-ietf-tls-external-psk-guidance/
>> 
>> There are also htmlized versions available at:
>> https://tools.ietf.org/html/draft-ietf-tls-external-psk-guidance-00
>> https://datatracker.ietf.org/doc/html/draft-ietf-tls-external-psk-guidance-00
>> 
>> 
>> Please note that it may take a couple of minutes from the time of submission
>> until the htmlized version and diff are available at tools.ietf.org.
>> 
>> Internet-Drafts are also available by anonymous FTP at:
>> ftp://ftp.ietf.org/internet-drafts/
>> 
>> 
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>> https://www.ietf.org/mailman/listinfo/tls
> 

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[TLS] tls - Requested session has been scheduled for IETF 108

2020-07-02 Thread "IETF Secretariat"
Dear Joseph Salowey,

The session(s) that you have requested have been scheduled.
Below is the scheduled session information followed by
the original request. 


tls Session 1 (1:40 requested)
Tuesday, 28 July 2020, Session III 1410-1550
Room Name: Room 6 size: 6
-


iCalendar: https://datatracker.ietf.org/meeting/108/sessions/tls.ics

Request Information:


-
Working Group Name: Transport Layer Security
Area Name: Security Area
Session Requester: Joseph Salowey


Number of Sessions: 1
Length of Session(s):  100 Minutes
Number of Attendees: 120
Conflicts to Avoid: 
 Chair Conflict: pearg git mls emu
 Technology Overlap: cfrg dprive dnsop lake
 Key Participant Conflict: quic httpbis taps secdispatch saag





People who must be present:
  Eric Rescorla
  Rich Salz
  Sean Turner
  Joseph A. Salowey
  Yoav Nir
  Benjamin Kaduk
  Christopher A. Wood
  Nick Sullivan

Resources Requested:

Special Requests:
  
-


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Re: [TLS] 2nd WGLC for Delegated Credentials for TLS

2020-07-02 Thread Daniel Migault
On Thu, Jul 2, 2020 at 10:21 AM Jonathan Hoyland 
wrote:

> Hi All,
>
> For those interested, I've been working on a formal analysis of DCs the
> results of which should appear online in the next few days.
> I'll post to the list when it's up.
>
> Great! Thanks.

> In summary I managed to prove a server only version of DCs secure (i.e.
> does not violate any of the properties in Appendix E.1) under the Dolev-Yao
> model without resumption, and work on a more general result is ongoing.
>
> Regards,
>
> Jonathan
>
> On Mon, 29 Jun 2020 at 16:59, Joseph Salowey  wrote:
>
>> This is the second working group last call for Delegated Credentials for
>> TLS.  The latest draft can be found here:
>> https://tools.ietf.org/html/draft-ietf-tls-subcerts-09.  There have been
>> 2 revisions since the last review.  Draft 8 contains changes that were not
>> committed in time for draft 7 and draft 9 contains revisions from the
>> previous WGLC.  Links to the Diffs between the draft 9 and draft 7 can be
>> found at the end of this message.   Please focus your review on the changes
>> between draft 7 and draft 9.  Please send your comments to the list by July
>> 13, 2020.
>>
>> Thanks,
>>
>> Sean and Joe
>>
>> [Inline Diff]
>> https://tools.ietf.org/rfcdiff?difftype=--hwdiff=draft-ietf-tls-subcerts-09.txt=draft-ietf-tls-subcerts-07.txt
>> [Side-by-side Diff]
>> https://tools.ietf.org/rfcdiff?url2=draft-ietf-tls-subcerts-09.txt=draft-ietf-tls-subcerts-07.txt
>>
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-- 
Daniel Migault
Ericsson
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Re: [TLS] 2nd WGLC for Delegated Credentials for TLS

2020-07-02 Thread Jonathan Hoyland
Hi All,

For those interested, I've been working on a formal analysis of DCs the
results of which should appear online in the next few days.
I'll post to the list when it's up.

In summary I managed to prove a server only version of DCs secure (i.e.
does not violate any of the properties in Appendix E.1) under the Dolev-Yao
model without resumption, and work on a more general result is ongoing.

Regards,

Jonathan

On Mon, 29 Jun 2020 at 16:59, Joseph Salowey  wrote:

> This is the second working group last call for Delegated Credentials for
> TLS.  The latest draft can be found here:
> https://tools.ietf.org/html/draft-ietf-tls-subcerts-09.  There have been
> 2 revisions since the last review.  Draft 8 contains changes that were not
> committed in time for draft 7 and draft 9 contains revisions from the
> previous WGLC.  Links to the Diffs between the draft 9 and draft 7 can be
> found at the end of this message.   Please focus your review on the changes
> between draft 7 and draft 9.  Please send your comments to the list by July
> 13, 2020.
>
> Thanks,
>
> Sean and Joe
>
> [Inline Diff]
> https://tools.ietf.org/rfcdiff?difftype=--hwdiff=draft-ietf-tls-subcerts-09.txt=draft-ietf-tls-subcerts-07.txt
> [Side-by-side Diff]
> https://tools.ietf.org/rfcdiff?url2=draft-ietf-tls-subcerts-09.txt=draft-ietf-tls-subcerts-07.txt
>
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Re: [TLS] Proposed change in TLS-Flags

2020-07-02 Thread Hannes Tschofenig
Hi Yoav,

> If that’s something the group wants, we can add it, but it’s not generally a 
> good thing for a protocol to have two ways of expressing the same thing.
I saw it more as a "compression" mechanism for those cases where an extension 
doesn't carry additional content.

Ciao
Hannes

Yoav

> On 1 Jul 2020, at 19:00, Hannes Tschofenig  wrote:
>
> One question: Wouldn’t you want to register a flag for "Post-Handshake Client 
> Authentication" in this document?
>
> Ciao
> Hannes
>
>
> From: TLS  On Behalf Of Hannes Tschofenig
> Sent: Wednesday, July 1, 2020 5:55 PM
> To: Yoav Nir ;  
> Subject: Re: [TLS] Proposed change in TLS-Flags
>
> Yoav,
>
> I looked at the draft and the PR. I am fine with the proposed changes.
> This is a short and useful draft.
>
> Ciao
> Hannes
>
> From: TLS  On Behalf Of Yoav Nir
> Sent: Monday, June 29, 2020 11:34 PM
> To:  
> Subject: [TLS] Proposed change in TLS-Flags
>
> Hi
>
> I’ve just submitted the following PR:
>
> https://github.com/tlswg/tls-flags/pull/4
>
> Three changes:
> • It is no longer allowed to send an empty flags extension.  If you don’t 
> support any flags, don’t send the extension.
> • The server is no longer allowed to respond with flag types that the client 
> didn’t indicate support for first.
> • I’ve split the extension description section into a format section and a 
> rules section
>
> Please comment. Barring any objections, I’ll merge the PR just before the 
> submission deadline.
>
> Yoav
>
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IMPORTANT NOTICE: The contents of this email and any attachments are 
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