Re: [OAUTH-WG] Public client cloning

2019-09-13 Thread Justin Richer
If the phone is compromised, it doesn’t matter if the client is public or confidential. In the latter case, an attacker could exfiltrate or capture the client’s own credentials and use them maliciously. — Justin On Sep 10, 2019, at 3:27 PM, Masakazu OHTSUKA mailto:o.masak...@gmail.com>> wrote:

Re: [OAUTH-WG] Public client cloning

2019-09-11 Thread Masakazu OHTSUKA
Okay, Marius, Filip and Nat, thank you for your answers. :) On Wed, Sep 11, 2019 at 3:51 AM Nat Sakimura wrote: > As Filip mentioned, I feel that claimed HTTPS URI would help. Further, if > that is used within the dynamic client registration, it could be more > secure. > > The security assumptio

Re: [OAUTH-WG] Public client cloning

2019-09-10 Thread Nat Sakimura
As Filip mentioned, I feel that claimed HTTPS URI would help. Further, if that is used within the dynamic client registration, it could be more secure. The security assumptions are 1. Phone is not rooted; 2. App Store's vetting of claimed URI is not compromised; etc. Nat Sakimura Chairman, Open

Re: [OAUTH-WG] Public client cloning

2019-09-10 Thread Masakazu OHTSUKA
I see. Then is this understandable to think from the Authorization Server's point of view ... If phone being compromised is a threat that the Client cares, AS might be interested in NOT supporting public Clients, and forcing the Client to have a server side, do client authentication, and have som

Re: [OAUTH-WG] Public client cloning

2019-09-10 Thread Filip Skokan
A claimed HTTPS URI would tho, right? Odesláno z iPhonu 10. 9. 2019 v 19:22, Marius Scurtescu : > If the phone is compromised, original app replaced by malicious app, then > RFC8252 will not help. The assumption is that the phone is not compromised. > >> On Tue, Sep 10, 2019 at 9:58 AM Masaka

Re: [OAUTH-WG] Public client cloning

2019-09-10 Thread Marius Scurtescu
If the phone is compromised, original app replaced by malicious app, then RFC8252 will not help. The assumption is that the phone is not compromised. On Tue, Sep 10, 2019 at 9:58 AM Masakazu OHTSUKA wrote: > Hi, > > I've read rfc8252 and have questions about native apps, that I couldn't > find a