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Re: [jose] x5c, x5u, x5t don't apply to all key types

Brian Campbell <bcampbell@pingidentity.com> Tue, 30 July 2013 10:16 UTC

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From: Brian Campbell <bcampbell@pingidentity.com>
Date: Tue, 30 Jul 2013 12:15:50 +0200
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To: Mike Jones <Michael.Jones@microsoft.com>
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Cc: "jose@ietf.org" <jose@ietf.org>
Subject: Re: [jose] x5c, x5u, x5t don't apply to all key types
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On Tue, Jul 30, 2013 at 11:08 AM, Mike Jones <Michael.Jones@microsoft.com>wrote:

>  Draft -14 now says “members that are common to multiple key types”.
>

WFM. Thanks.


> And the incorrectly numbered sections are actually gone.
>

Actually, 3.3.3 still looks problematic, "JWK Parameters for Symmetric
Keys" lines up as though it's part of RSA.

   5 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5>.
 Cryptographic Algorithms for JWK . . . . . . . . . . . . . . . 33
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-33>
     5.1 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.1>.
 "kty" (Key Type) Parameter Values for JWK  . . . . . . . . 33
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-33>
     5.2 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.2>.
 JWK Parameters for Elliptic Curve Keys . . . . . . . . . . 33
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-33>
       5.2.1 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.2.1>.
 JWK Parameters for Elliptic Curve Public Keys  . . . . 33
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-33>
        [...]
       5.2.2 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.2.2>.
 JWK Parameters for Elliptic Curve Private Keys . . . . 34
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-34>
         5.2.2.1
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.2.2.1>.
 "d" (ECC Private Key) Parameter  . . . . . . . . . 34
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-34>
     5.3 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.3>.
 JWK Parameters for RSA Keys  . . . . . . . . . . . . . . . 35
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-35>
       5.3.1 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.3.1>.
 JWK Parameters for RSA Public Keys . . . . . . . . . . 35
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-35>
        [...]
       5.3.2 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.3.2>.
 JWK Parameters for RSA Private Keys  . . . . . . . . . 35
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-35>
        [...]
       5.3.3 <http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.3.3>.
 JWK Parameters for Symmetric Keys  . . . . . . . . . . 37
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-37>
         5.3.3.1
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#section-5.3.3.1>.
 "k" (Key Value) Parameter  . . . . . . . . . . . . 37
<http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-14#page-37>



>
>
  *From:* Mike Jones
> *Sent:* Wednesday, July 17, 2013 1:55 PM
> *To:* 'Brian Campbell'; jose@ietf.org
> *Subject:* RE: [jose] x5c, x5u, x5t don't apply to all key types****
>
> ** **
>
> Thanks for noticing this.  How about “members that are common to all
> public key types”?****
>
> ** **
>
> You’re right about the section numbering.  I’ll fix that.****
>
> ** **
>
>                                                             Thanks again,*
> ***
>
>                                                             -- Mike****
>
> ** **
>
> *From:* jose-bounces@ietf.org [mailto:jose-bounces@ietf.org<jose-bounces@ietf.org>]
> *On Behalf Of *Brian Campbell
> *Sent:* Wednesday, July 17, 2013 12:34 PM
> *To:* jose@ietf.org
> *Subject:* [jose] x5c, x5u, x5t don't apply to all key types****
>
> ** **
>
> Section 3 of JWK [1] defines "members that are common to all key types"
> and includes among those members x5c, x5u and x5t. However, the x5X
> parameters are relevant only for half the key types defined in JWA - they
> don't really make sense for "oct" [2] or "PBKDF2" [3]. ****
>
> Not sure the best way to address this but it seems kind of awkward as it
> is. Maybe move them into the EC and RSA type definitions (or something
> common to both) or somehow add some qualifying text saying that they can
> only be used with key types utilizing public keys?****
>
> As I was looking up the URLs below I noticed that the section alignment in
> section 5 of JWA is a little off. I think 5.3.3 and 5.3.4 should probably
> be 5.4 and 5.5 respectively. Right now they line up as though they were
> part of the RSA key type.****
>
> ** **
>
> [1] http://tools.ietf.org/html/draft-ietf-jose-json-web-key-13#section-3
> [2]
> http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-13#section-5.3.3
> [3]
> http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-13#section-5.3.4
> ****
>

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