Re: [OAUTH-WG] JWT Response for OAuth Token Introspection and nonce

2021-02-09 Thread Andrii Deinega
I still don't see how your #1 and #3 points mitigate the replay attack when an attacker somehow eavesdrops a successful response from an AS (yes, it's signed by a public key) and then starts to replay it for other requests from the same client. The main problem here is that the client doesn't have

Re: [OAUTH-WG] JWT Response for OAuth Token Introspection and nonce

2021-02-09 Thread Neil Madden
Three points: 1. In many cases the JWT will be verified using a public key fetched over the same TLS channel. 2. Many proxies can now also produce and consume JWTs for downstream services, so end-to-end JWT is no more guaranteed than end-to-end TLS. 3. The JWT response already contains an iat

Re: [OAUTH-WG] JWT Response for OAuth Token Introspection and nonce

2021-02-09 Thread Andrii Deinega
How can you guarantee that there are always direct TLS connections between a client and an AS hosted say some cloud provider where you have a little control on their infrastructure? Even without all those cloud providers, how can you guarantee the same when there are a bunch of different (software

Re: [OAUTH-WG] I-D Action: draft-ietf-oauth-rar-04.txt

2021-02-09 Thread Francis Pouatcha
Find bellow my review of the draft: 1. Redactional changes: 2.2. Authorization Data Types Interpretation of the value of the "type" parameter, and the object elements that the "type" parameter allows => allowed 9. Metadata which is an JSON array. => which is a JSON array 1

Re: [OAUTH-WG] JWT Response for OAuth Token Introspection and types of tokens

2021-02-09 Thread Vladimir Dzhuvinov
Hi Warren, On 08/02/2021 17:59, Warren Parad wrote: > None of that justified explicitly stating that refresh token > introspection shouldn't be done. At best it suggests that we should > explicitly add language in the draft to directly encourage it. Did you mean discourage? > But if an AS wants

Re: [OAUTH-WG] Benjamin Kaduk's Discuss on draft-ietf-oauth-jwt-introspection-response-10: (with DISCUSS and COMMENT)

2021-02-09 Thread Vladimir Dzhuvinov
Hi Benjamin, Thanks a lot for your comments. We discussed them and applied several changes to the draft to address them. Those changes can be previewed here: https://github.com/oauthstuff/draft-ietf-oauth-jwt-introspection-response/compare/address-comments-benjamin-kaduk-2021-01-26 Further com

Re: [OAUTH-WG] JWT Response for OAuth Token Introspection and nonce

2021-02-09 Thread Neil Madden
On 9 Feb 2021, at 06:55, Andrii Deinega wrote: > >  > Hi WG, > > I wonder if there are any particular reasons to not make nonce a mandatory > parameter for the current JWT Response for OAuth Token Introspection draft. > Or, at least, force an AS to include the nonce claim in a JWT response wh