Hi Nat & John, I tried to find out how signing & encryption algorithms are determined in the JAR context.
I just found this note in the history for -07: "Stopped talking about request_object_signing_alg” I assume you assume this is done via client registration parameters registered in https://www.iana.org/assignments/oauth-parameters/oauth-parameters.xhtml#client-metadata? Why doesn’t JAR state so? What is about algorithms supported by the AS? The respective parameters, such as request_object_signing_alg_values_supported are not registered yet in https://www.iana.org/assignments/oauth-parameters/oauth-parameters.xhtml#authorization-server-metadata. best regards, Torsten. > On 19. Apr 2020, at 20:30, internet-dra...@ietf.org wrote: > > > A New Internet-Draft is available from the on-line Internet-Drafts > directories. > This draft is a work item of the Web Authorization Protocol WG of the IETF. > > Title : The OAuth 2.0 Authorization Framework: JWT Secured > Authorization Request (JAR) > Authors : Nat Sakimura > John Bradley > Filename : draft-ietf-oauth-jwsreq-21.txt > Pages : 31 > Date : 2020-04-19 > > Abstract: > The authorization request in OAuth 2.0 described in RFC 6749 utilizes > query parameter serialization, which means that Authorization Request > parameters are encoded in the URI of the request and sent through > user agents such as web browsers. While it is easy to implement, it > means that (a) the communication through the user agents are not > integrity protected and thus the parameters can be tainted, and (b) > the source of the communication is not authenticated. Because of > these weaknesses, several attacks to the protocol have now been put > forward. > > This document introduces the ability to send request parameters in a > JSON Web Token (JWT) instead, which allows the request to be signed > with JSON Web Signature (JWS) and encrypted with JSON Web Encryption > (JWE) so that the integrity, source authentication and > confidentiality property of the Authorization Request is attained. > The request can be sent by value or by reference. > > > The IETF datatracker status page for this draft is: > https://datatracker.ietf.org/doc/draft-ietf-oauth-jwsreq/ > > There are also htmlized versions available at: > https://tools.ietf.org/html/draft-ietf-oauth-jwsreq-21 > https://datatracker.ietf.org/doc/html/draft-ietf-oauth-jwsreq-21 > > A diff from the previous version is available at: > https://www.ietf.org/rfcdiff?url2=draft-ietf-oauth-jwsreq-21 > > > Please note that it may take a couple of minutes from the time of submission > until the htmlized version and diff are available at tools.ietf.org. > > Internet-Drafts are also available by anonymous FTP at: > ftp://ftp.ietf.org/internet-drafts/ > > > _______________________________________________ > OAuth mailing list > OAuth@ietf.org > https://www.ietf.org/mailman/listinfo/oauth _______________________________________________ OAuth mailing list OAuth@ietf.org https://www.ietf.org/mailman/listinfo/oauth
