Re: [quicwg/base-drafts] Expand AEAD limits to consider multi-user security. (#3789)
Martin Thomson <notifications@github.com> Fri, 26 June 2020 01:53 UTC
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Date: Thu, 25 Jun 2020 18:53:20 -0700
From: Martin Thomson <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Expand AEAD limits to consider multi-user security. (#3789)
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@martinthomson commented on this pull request. > + +~~~ +(q + v) <= 2^28 +~~~ + +Assuming `v = q`, endpoints cannot protect more than 2^27 packets in a single +connection without causing an attacker to gain an larger advantage than the +target of 2^-60. + +### Integrity Limit + +For integrity, Theorem (4.3) in {{?GCM-MU}} establishes that an attacker gains +an advantage in successfully forging a packet of no more than: + +~~~ +(1 / 2^(8 * n)) + ((2 * v) / 2^2*n) + ((2 * o * v) / 2^(k + n)) The only potential problem here is with line length, but this seems better. -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/quicwg/base-drafts/pull/3789#discussion_r445927672
- [quicwg/base-drafts] Expand AEAD limits to consid… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Jana Iyengar
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Jana Iyengar
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Jana Iyengar
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… martinduke
- Re: [quicwg/base-drafts] Expand AEAD limits to co… martinduke
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christian Huitema
- Re: [quicwg/base-drafts] Expand AEAD limits to co… David Schinazi
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Jana Iyengar
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Christopher Wood
- Re: [quicwg/base-drafts] Expand AEAD limits to co… ekr
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Jana Iyengar
- Re: [quicwg/base-drafts] Expand AEAD limits to co… David Schinazi
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson
- Re: [quicwg/base-drafts] Expand AEAD limits to co… Martin Thomson