Re: [Last-Call] Secdir last call review of draft-ietf-cose-webauthn-algorithms-06

[Linda Dunbar <[e-mail]>]

Mike,

Thank you for the change.

Linda

-----Original Message-----
From: Mike Jones <[e-mail]> 
Sent: Wednesday, June 3, 2020 11:52 AM
To: Linda Dunbar <[e-mail]>; Matthew A. Miller <[e-mail]>; [e-mail]
Cc: [e-mail]; [e-mail]; [e-mail]
Subject: RE: Secdir last call review of draft-ietf-cose-webauthn-algorithms-06

Thanks again for your review, Linda.  https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-ietf-cose-webauthn-algorithms-07%23section-5.2&amp;data=02%7C01%7Clinda.dunbar%40futurewei.com%7C4025d38884ae4d1a9a5b08d807de6562%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637267999048635328&amp;sdata=oGsafk80fAFxgfMfx3wUPwlrVexjGyVvsHDZfrKdpyo%3D&amp;reserved=0 adds the requested clarification that SHA-256, SHA-384, and SHA-512 are the SHA-2 hash functions.

				-- Mike

-----Original Message-----
From: Linda Dunbar <[e-mail]>
Sent: Wednesday, May 27, 2020 5:22 PM
To: Matthew A. Miller <[e-mail]>; [e-mail]
Cc: [e-mail]; [e-mail]; [e-mail]
Subject: [EXTERNAL] RE: Secdir last call review of draft-ietf-cose-webauthn-algorithms-06

Matthew, 

That is what I was thinking. Can you add a sentence in Section 5.2 to say that this is for the collection of SHA-256, SHA-384, SHA-512 algorithms? 
Otherwise, the two sections of the document don't  match. 

Thank you
Linda Dunbar

-----Original Message-----
From: Matthew A. Miller <[e-mail]>
Sent: Wednesday, May 27, 2020 4:55 PM
To: Linda Dunbar <[e-mail]>; [e-mail]
Cc: [e-mail]; [e-mail]; [e-mail]
Subject: Re: Secdir last call review of draft-ietf-cose-webauthn-algorithms-06

Hello Linda,

Thanks for the review.  Speaking on the author's behalf, SHA-2 is defined as the collection of hash algorithms, including all of those cited (SHA-256, SHA-384, SHA-512).  Do you believe it is critical to call this out explicitly?


- m&m

Matthew A. Miller
On 20/05/26 17:51, Linda Dunbar via Datatracker wrote:
> Reviewer: Linda Dunbar
> Review result: Not Ready
> 
> I have reviewed this document as part of the security directorate's 
> ongoing effort to review all IETF documents being processed by the 
> IESG.  These comments were written primarily for the benefit of the security area directors.
>  Document editors and WG chairs should treat these comments just like 
> any other  last call comments.
> 
> This document is to list down the COSE&JOSE Algorithms to be 
> registered to IANA. But it seems the description is not complete. In 
> the Section 2: among the
> 4 algorithms listed under RSASSA-PKCS1-v1_5, three are NOT 
> recommended, one is deprecated. Under the Security Consideration 
> (Section 5), Section 5.2 describes why SHA-2 is "Not Recommended", 
> Section 5.3 describes why SHA-1 is "Deprecated".  What about the 
> description on why SHA-512,  SHA-384, and SHA-256 are not recommended?  Is the missing description intended?
> 
> Best Regards,
> 
> Linda Dunbar
> 
> 
>