Re: [quicwg/base-drafts] Add retry integrity tag (#3120)
ianswett <notifications@github.com> Sat, 19 October 2019 03:37 UTC
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Subject: Re: [quicwg/base-drafts] Add retry integrity tag (#3120)
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ianswett commented on this pull request. I'm not in love with the pseudo-packet concept, FWIW. > @@ -1197,6 +1197,64 @@ TLS ClientHello. The server MAY retain these packets for later decryption in anticipation of receiving a ClientHello. +## Retry Packet Integrity {#retry-integrity} + +Retry packets (see the Retry Packet section of {{QUIC-TRANSPORT}}) carry a +Retry Integrity Tag that provides two properties: it allows discarding +packets that have accidentally been corrupted by the network, and it mitigates +off-path attackers' ability to send valid Retry packets. I'm unsure how this achieves the latter goal? > +| Version (32) | ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +| DCID Len (8) | ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +| Destination Connection ID (0..160) ... ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +| SCID Len (8) | ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +| Source Connection ID (0..160) ... ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +| Retry Token (*) ... ++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +~~~ +{: #retry-pseudo title="Retry Pseudo-Packet"} + +The Retry Pseudo-Packet is not sent over the wire. It is computed by taking I'm confused by the term Psuedo-Packet. If you're intending to remove these fields in a future PR, I'd prefer to keep them in for now to make this simpler. -- 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/3120#pullrequestreview-304193586
- [quicwg/base-drafts] Add retry integrity tag (#31… David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Marten Seemann
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … Nick Banks
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … Christopher Wood
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … ianswett
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … ianswett
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Martin Thomson
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Mike Bishop
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Martin Thomson
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … ianswett
- Re: [quicwg/base-drafts] Add retry integrity tag … Martin Thomson
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … MikkelFJ
- Re: [quicwg/base-drafts] Add retry integrity tag … Jana Iyengar
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … ekr
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … ekr
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … ekr
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Jana Iyengar
- Re: [quicwg/base-drafts] Add retry integrity tag … ekr
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … ekr
- Re: [quicwg/base-drafts] Add retry integrity tag … Marten Seemann
- Re: [quicwg/base-drafts] Add retry integrity tag … Martin Thomson
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … Jana Iyengar
- Re: [quicwg/base-drafts] Add retry integrity tag … David Schinazi
- Re: [quicwg/base-drafts] Add retry integrity tag … Jana Iyengar
- Re: [quicwg/base-drafts] Add retry integrity tag … Christian Huitema
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku
- Re: [quicwg/base-drafts] Add retry integrity tag … Kazuho Oku