On Aug 9, 2012, at 1:08 PM, Justin Richer wrote:

> With MAC, you should be able to re-use about 80-90% of your existing codepath 
> that's in place for Bearer, simplifying the setup below. 

That makes no sense, I would be adding MAC to the sites that support MAC in 
addition to OAuth 1.0A or OAuth 2.0

> 
> I would figure that the "variant of OAuth2" issue is a red herring because 
> not everyone out there is fully spec compliant. If they were, you wouldn't 
> have so many beautiful snowflakes.


Being consistent in the spec would help, but likely would just give me 
snowflakes that look more like each other.

There are many aspects of the OAuth dance that are implementation dependent and 
it is simpler to just have a separate method for each one that deals with those 
unique characteristics. Note this is not theory, this is practice. Different 
modules was not an issue. Not having to use a library to sign requests and 
being able to use CURL or a browser to see what a request returned had a HUGE 
productivity gain for OAuth 2.0 implementations over OAuth 1.0A implemetations. 

> 
>  -- Justin
> 
> On 08/09/2012 03:48 PM, Dick Hardt wrote:
>> As an implementer, I have an app that accesses 10 different resources. Some 
>> are OAuth 1.0A, some are a variant of OAuth 2. All have a slightly different 
>> code path since each resource is its own beautiful snowflake. I did not use 
>> any libraries for OAuth 2. Supporting MAC would give me yet another library 
>> to integrate with.
>> 
>> I'd be interested in what signing problems OAuth 1.0A has. I have my own 
>> list of how writing to OAuth 1.0A is hard.
>> 
>> On Aug 9, 2012, at 10:53 AM, William Mills wrote:
>> 
>>> MAC fixes the signing problems encountered in OAuth 1.0a, yes there are 
>>> libraries out there for OAuth 1.0a.  MAC fits in to the OAuth 2 auth model 
>>> and will provide for a single codepath for sites that want to use both 
>>> Bearer and MAC.
>>> 
>>> From: Dick Hardt <[email protected]>
>>> To: William Mills <[email protected]> 
>>> Cc: "[email protected]" <[email protected]> 
>>> Sent: Thursday, August 9, 2012 10:27 Aa
>>> Subject: Re: [OAUTH-WG] mistake in draft-ietf-oauth-v2-http-mac-01
>>> 
>>> 
>>> On Aug 9, 2012, at 9:52 AM, William Mills wrote:
>>> 
>>>> I find the idea of starting from scratch frustrating.  MAC solves a set of 
>>>> specific problems and has a well defined use case.  It's symmetric key 
>>>> based which doesn't work for some folks, and the question is do we try to 
>>>> develop something that supports both PK and SK, or finish the SK use case 
>>>> and then work on a PK based draft.
>>>> 
>>>> I think it's better to leave them separate and finish out MAC which is 
>>>> *VERY CLOSE* to being done.
>>> 
>>> Who is interested in MAC? People can use OAuth 1.0 if they prefer that 
>>> model. 
>>> 
>>> For my projects, I prefer the flexibility of a signed or encrypted JWT if I 
>>> need holder of key.
>>> 
>>> Just my $.02
>>> 
>>> -- Dick  
>>> 
>>> 
>>> 
>> 
>> 
>> 
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> 

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