Re: [secdir] additional mechanisms on top of the auth framework, was: SECDIR review of draft-ietf-httpbis-p7-auth-24

Stephen Kent <kent@bbn.com> Thu, 31 October 2013 15:17 UTC

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Date: Thu, 31 Oct 2013 11:16:59 -0400
From: Stephen Kent <kent@bbn.com>
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To: Julian Reschke <julian.reschke@greenbytes.de>, secdir <secdir@ietf.org>, fielding@gbiv.com, mnot@pobox.com, Barry Leiba <barryleiba@computer.org>, Pete Resnick <presnick@qti.qualcomm.com>, "Mankin, Allison" <amankin@verisign.com>, HTTP Working Group <ietf-http-wg@w3.org>
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Subject: Re: [secdir] additional mechanisms on top of the auth framework, was: SECDIR review of draft-ietf-httpbis-p7-auth-24
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Julian,

The revised text you proposed below looks good, with one minor edit:

or encryption on the transport layer -> or encryption *at* the transport 
layer

Thanks,

Steve
-----
On 10/31/13 9:54 AM, Julian Reschke wrote:
> On 2013-10-29 20:35, Stephen Kent wrote:
> > ...
> > Later on page 6 the text says:
>>
>> The HTTP protocol does not restrict applications to this simple
>>
>> challenge-response framework for access authentication.Additional
>>
>> mechanisms MAY be used, such as encryption at the transport level or
>>
>> via message encapsulation, and with additional header fields
>>
>> specifying authentication information.However, such additional
>>
>> mechanisms are not defined by this specification.
>>
>> Encryption is not, per se, an authentication mechanism. Please revise
>> this text.
>> ...
>
>
> OK. Maybe:
>
> "HTTP does not restrict applications to this simple challenge-response 
> framework. Additional mechanisms can be used, such as additional 
> header fields carrying authentication information, or encryption on 
> the transport layer in order to provide confidentiality. However, such 
> additional mechanisms are not defined by this specification."
>
> ?
>
> Best regards, Julian
>