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[kitten] Cancel message Re: Alexey's comments Re: WGLC of draft-ietf-kitten-sasl-oauth-18

Bill Mills <wmills_92105@yahoo.com> Tue, 06 January 2015 21:36 UTC

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Date: Tue, 06 Jan 2015 21:36:35 +0000
From: Bill Mills <wmills_92105@yahoo.com>
To: Alexey Melnikov <alexey.melnikov@isode.com>
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Subject: [kitten] Cancel message Re: Alexey's comments Re: WGLC of draft-ietf-kitten-sasl-oauth-18
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" The client MUST then send either an additional client response consisting of a single %x01 (control A) character to the server in order to allow the server to finish the exchange or send a SASL cancellation token as defined in ACAP[RFC2244] section 6.3.1." 

     On Sunday, January 4, 2015 3:37 AM, Alexey Melnikov <alexey.melnikov@isode.com> wrote:
   

 Hi Bill,

> On 3 Jan 2015, at 00:56, Bill Mills <wmills_92105@yahoo.com> wrote:
> 
> 3.2.3 and an explicit message:  Long ago in the life of this doc I was told that some implementations may not support an empty message, so we put the single character message there to have an explicit payload.  I'm a bit leery of changing this now since there are implementations in play that use it this way.

I didn't suggest you should be sending empty message. I said you should be using SASL cancellation token, which is a mandatory RFC 4422 feature.

Any implementation would have to support this mode of operation anyway, because a SASL client can cancel any exchange.

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