Re: [Unbearable] WGLC 3 on core documents
Denis <denis.ietf@free.fr> Mon, 27 February 2017 20:40 UTC
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From: Denis <denis.ietf@free.fr>
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Date: Mon, 27 Feb 2017 21:39:55 +0100
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Cc: IETF Tokbind WG <unbearable@ietf.org>
Subject: Re: [Unbearable] WGLC 3 on core documents
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Nick, For being able to speak of a "replay", there should first be a "play of the token". But in this case, there is a single"play" of it, and hence no replay. Denis > The client collusion scenario is about one client exporting a bound > token for another client to use. This bound token is a security token, > and reusing the token (whether it is on the same client or another > client) is replaying it. Hence, "Security Token Replay" is a perfectly > appropriate section for those sentences. They don't need their own > section. > > On Mon, Feb 27, 2017 at 1:19 AM, Denis <denis.ietf@free.fr > <mailto:denis.ietf@free.fr>> wrote: > > Comments on draft-ietf-tokbind-protocol-13 (The Token Binding > Protocol Version 1.0) > > On page 14 within the Security Considerations section, I > appreciate the fact that the following sentences have been added: > > > *The Token Binding protocol does not prevent cooperating clients from* > *sharing a bound token.A client could intentionally export a bound* > *token with the corresponding Token Binding private key, or perform* > *signatures using this key on behalf of another client.* > > However, these sentences have been placed inside section 7.1. > which is called "Security Token Replay". > > This security consideration has nothing to do with "Security Token > Replay" but with "Client collusion". > > Therefore, these sentences should be placed under a new section > called: "7.2. Client collusion". > > ====================================================================================== > > Comments on draft-ietf-tokbind-https-08 (Token Binding over HTTP) > > On page 14 within the Security Considerations section, the same > kind of change as the one requested > for draft-ietf-tokbind-protocol-13 (The Token Binding Protocol > Version 1.0) should be done, i.e. add a new section > called: "7.2. Client collusion" with the following text : > > *Token Binding over HTTP does not prevent cooperating clients from > sharing a bound token.A client could intentionally export a bound > token with the corresponding Token Binding private key, or perform > signatures using this key on behalf of another client.* > > > Denis > > > _______________________________________________ > Unbearable mailing list > Unbearable@ietf.org <mailto:Unbearable@ietf.org> > https://www.ietf.org/mailman/listinfo/unbearable > <https://www.ietf.org/mailman/listinfo/unbearable> > >
- [Unbearable] WGLC 3 on core documents Leif Johansson
- Re: [Unbearable] WGLC 3 on core documents Denis
- Re: [Unbearable] WGLC 3 on core documents Nick Harper
- Re: [Unbearable] WGLC 3 on core documents Denis
- Re: [Unbearable] WGLC 3 on core documents Leif Johansson
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Andrei Popov
- Re: [Unbearable] WGLC 3 on core documents Brian Campbell
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Nick Harper
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Nick Harper
- Re: [Unbearable] WGLC 3 on core documents Andrei Popov
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Andrei Popov
- Re: [Unbearable] WGLC 3 on core documents Martin Thomson
- Re: [Unbearable] WGLC 3 on core documents Brian Campbell
- Re: [Unbearable] WGLC 3 on core documents Andrei Popov
- Re: [Unbearable] WGLC 3 on core documents Brian Campbell
- Re: [Unbearable] WGLC 3 on core documents Andrei Popov