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Re: [OAUTH-WG] OAuth Signature

Dick Hardt <dick.hardt@gmail.com> Tue, 27 July 2010 20:43 UTC

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From: Dick Hardt <dick.hardt@gmail.com>
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Date: Tue, 27 Jul 2010 13:43:34 -0700
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To: Nat Sakimura <sakimura@gmail.com>
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Subject: Re: [OAUTH-WG] OAuth Signature
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On 2010-07-27, at 12:34 AM, Nat Sakimura wrote:

> I have a fundamental question.
> 
> While separating signature and payload by a dot "." seems ok,
> I still have not the answer for the question "why not make everything
> into JSON and base64url it?".

bloat from base64 encoding twice

> 
> BTW, some of the envelope parameters such as alg needs to be signed as
> well to thwart the algorithm replacing attack.

would you elaborate on the attack?

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