Re: [Emu] TEAP time again: Result and Intermediate and crypto binding TLVs with no inner EAP methods
Alan DeKok <aland@deployingradius.com> Fri, 07 October 2022 20:46 UTC
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From: Alan DeKok <aland@deployingradius.com>
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Date: Fri, 07 Oct 2022 16:46:38 -0400
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To: Eliot Lear <lear@lear.ch>
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Subject: Re: [Emu] TEAP time again: Result and Intermediate and crypto binding TLVs with no inner EAP methods
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On Oct 5, 2022, at 12:44 PM, Eliot Lear <lear@lear.ch> wrote: > >> >> &TL;DR need clarity on how crypto-binding TLVs when there is no inner EAP method. Also note the use of request-action. >> >> Key questions: what value to pass for EMSK and MSK in crypto binding response when there is no inner method? Zeros? >> >> Also, can the flags indicate that there is no EMSK or MSK? This would solve our first problem. Both approaches seem reasonable. >> Finally, are we cool piggybacking Result and Crypto-binding on a PKCS#7 TLV? >> >> Flows follow: >> Use case 1: >> >> Device just wants to use TEAP in the same way one would use EAP-TLS. This would be what I would call "normal operations". That is, we would expect something along the following lines: What additions are there from EAP-TLS? Provisioning? >> Note the lack of an Intermediate Result TLV, because the text states that Intermediate Results are only required upon completion of an inner EAP method. I think that's reasonable. >> The second use case involves the use of PKCS#10/PKCS#7 messages. We think that looks like this: That seems OK, too. Alan DeKok.