[Emu] Appropriate AAA/EAP response to a peer's NAK when there are no overlapping methods

2020-08-19 Thread Terry Burton
Hi, I'm unable to find the authoritative source that state exactly how the following conversation continues (TL;DR; the peer NAKs the original method and the AAA doesn't support any of the peer's proposals): 1. NAS --> Peer : EAP-Request / Identity 2. Peer --> NAS : EAP-Response / Identity ( ID

Re: [Emu] Appropriate AAA/EAP response to a peer's NAK when there are no overlapping methods

2020-08-20 Thread Terry Burton
n "EAP-Response/NAK" sent in the "wrong" direction: AAA --> NAS --> Peer However I believe that this is considering the case where the peer contains an EAP server that is trying to initiate an authentication of the NAS (not allowed), and therefore the AAA tells the peer to

Re: [Emu] Appropriate AAA/EAP response to a peer's NAK when there are no overlapping methods

2020-08-20 Thread Terry Burton
thod response (RECEIVED -> INTEGRITY_CHECK -> METHOD_RESPONSE -> SELECT_ACTION transition) ultimately arrive at the same FAILURE state that builds a EAP-Failure packet. It appears that the agreed upon behaviour is codified here. Its behaviour also does not differentiate between a peer NAK

Re: [Emu] Appropriate AAA/EAP response to a peer's NAK when there are no overlapping methods

2020-08-20 Thread Terry Burton
On Thu, 20 Aug 2020 at 13:34, Mohit Sethi M wrote: <...snip...> > It's also contrary to... > > Type zero (0) is used to indicate that the sender has > no viable alternatives, and therefore the authenticator SHOULD NOT > send another Request after receiving a Nak Response

[Emu] draft-ietf-emu-eap-tls13: Client re-validation of server authority information during resumption

2020-08-10 Thread Terry Burton
Hi, Reading "Using EAP-TLS with TLS 1.3" I find the text potentially misleading when it comes to resumption within TLS 1.3, specifically for the case where the peer wishes to re-validate the certificate originally provided by the server during the initial handshake using only its locally cached

Re: [Emu] draft-ietf-emu-eap-tls13: Client re-validation of server authority information during resumption

2020-08-12 Thread Terry Burton
On Wed, 12 Aug 2020 at 07:17, Mohit Sethi M wrote: > Thank you again for the feedback. I have updated the text in github: > https://emu-wg.github.io/draft-ietf-emu-eap-tls13/draft-ietf-emu-eap-tls13.html#rfc.section.5.7 > > Here is the diff for your convenience: >

Re: [Emu] draft-ietf-emu-eap-tls13: Client re-validation of server authority information during resumption

2020-08-11 Thread Terry Burton
server, and that it is the blob itself that is used by the client to lookup the information in its cache. This gives the correct intuition for why the scheme works without needing to understand the detail in the aforementioned RFCs to read between the lines. Terry > On 8/10/20 6:58 PM, Terry