Re: [saag] can an on-path attacker drop traffic?
Dan Harkins <dharkins@lounge.org> Sun, 04 October 2020 01:14 UTC
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Date: Sat, 03 Oct 2020 18:14:22 -0700
From: Dan Harkins <dharkins@lounge.org>
In-reply-to: <CABcZeBNuBhu8KUoZJsY3VR8LzDa78_n53rRZ-5nMrpCbqh_6KQ@mail.gmail.com>
To: Eric Rescorla <ekr@rtfm.com>, Fernando Gont <fernando@gont.com.ar>
Cc: Michael Richardson <mcr+ietf@sandelman.ca>, IETF SAAG <saag@ietf.org>
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Subject: Re: [saag] can an on-path attacker drop traffic?
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On 10/2/20 7:03 AM, Eric Rescorla wrote: [snip] > > For capabilities, our basic assumption is what is often called a > Dolev-Yao attacker, in which the attacker has complete control of the > channel (this is what 3552 describes as the Internet Threat model > [0]). However, it's also useful to try to consider more limited > attackers such as those who can only read from the wire and those who > cannot remove packets. Why? If we want to develop protocols that are secure in the presence of a powerful attacker who has complete control of the medium what value is there in considering a "more limited attacker"? It sounds like you're making a distinction between a passive attacker and an active attacker. Which is fine but what use do you see in a protocol that is secure against this "limited attacker" but not against the more powerful attacker? Dan.
- [saag] can an on-path attacker drop traffic? Michael Richardson
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Christian Huitema
- Re: [saag] can an on-path attacker drop traffic? Behcet Sarikaya
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Nico Williams
- Re: [saag] can an on-path attacker drop traffic? Carsten Bormann
- Re: [saag] can an on-path attacker drop traffic? Dan Harkins
- Re: [saag] can an on-path attacker drop traffic? Carsten Bormann
- Re: [saag] can an on-path attacker drop traffic? Fernando Gont
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Dan Harkins
- Re: [saag] can an on-path attacker drop traffic? Michael Richardson
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Peter Gutmann
- Re: [saag] can an on-path attacker drop traffic? Christian Huitema
- Re: [saag] can an on-path attacker drop traffic? Dan Harkins
- Re: [saag] can an on-path attacker drop traffic? Paul Hoffman
- Re: [saag] can an on-path attacker drop traffic? Carsten Bormann
- Re: [saag] can an on-path attacker drop traffic? Alan DeKok
- Re: [saag] can an on-path attacker drop traffic? Dan Harkins
- Re: [saag] can an on-path attacker drop traffic? Michael Richardson
- Re: [saag] can an on-path attacker drop traffic? Nico Williams
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Eric Rescorla
- Re: [saag] can an on-path attacker drop traffic? Michael Richardson