Re: [quicwg/base-drafts] Add initial threat model to security considerations (#2925)

Eric Kinnear <> Sat, 16 November 2019 12:49 UTC

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From: Eric Kinnear <>
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Subject: Re: [quicwg/base-drafts] Add initial threat model to security considerations (#2925)
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erickinnear commented on this pull request.

> +
+A limited on-path attacker cannot:
+- Delay packets beyond the original packet duration
+- Drop packets
+- Modify the authenticated and encrypted portion of a packet and cause the
+ recipient to accept that packet
+A limited on-path attacker can only delay packets up to the point that the
+original packets arrive before the duplicate packets, meaning that it cannot
+offer worse routing than the original path, only improved routing.  If a limited
+on-path attacker drops packets, the original copy will still arrive at the
+destination endpoint.
+In the presence of a limited on-path attacker, QUIC aims to provide the
+following properties.

Fixed everywhere in 70dac1d

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