Re: [quicwg/base-drafts] Allow Smaller Stateless Resets (#2927)
Mike Bishop <notifications@github.com> Mon, 29 July 2019 14:25 UTC
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Subject: Re: [quicwg/base-drafts] Allow Smaller Stateless Resets (#2927)
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MikeBishop approved this pull request. > @@ -2389,11 +2389,17 @@ of bytes following it that are set to unpredictable values. The last 16 bytes of the datagram contain a Stateless Reset Token. To entities other than its intended recipient, a stateless reset will appear -to be a packet with a short header. For the packet to appear as valid, the -Unpredictable Bits field needs to include at least 198 bits of data (or 25 -bytes, less the two fixed bits). This is intended to allow for a Destination -Connection ID of the maximum length permitted, with a minimal packet number, and -payload. The Stateless Reset Token corresponds to the minimum expansion of the +to be a packet with a short header. For the stateless reset to appear as a +valid QUIC packet and be smaller than the received packet, the Unpredictable Needing "at least 48 bits" isn't a requirement to "be smaller than the received packet." This addition doesn't compute. > @@ -2389,11 +2389,17 @@ of bytes following it that are set to unpredictable values. The last 16 bytes of the datagram contain a Stateless Reset Token. To entities other than its intended recipient, a stateless reset will appear -to be a packet with a short header. For the packet to appear as valid, the -Unpredictable Bits field needs to include at least 198 bits of data (or 25 -bytes, less the two fixed bits). This is intended to allow for a Destination -Connection ID of the maximum length permitted, with a minimal packet number, and -payload. The Stateless Reset Token corresponds to the minimum expansion of the +to be a packet with a short header. For the stateless reset to appear as a +valid QUIC packet and be smaller than the received packet, the Unpredictable +Bits field needs to include at least 48 bits of data (or 6 bytes, less the +two fixed bits). To ensure the stateless reset packet is not smaller than +other packets received on the connection, an endpoint SHOULD also ensure the +total packet length is at least the minimum chosen CID length + 22 bytes. Defer to @martinthomson on the styling, but perhaps spell out "plus" here. -- 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/2927#pullrequestreview-267818042
- [quicwg/base-drafts] Update draft-ietf-quic-trans… ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Nick Banks
- Re: [quicwg/base-drafts] Allow Smaller Stateless … David Schinazi
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … David Schinazi
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Mike Bishop
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Martin Thomson
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … ianswett
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Martin Thomson
- Re: [quicwg/base-drafts] Allow Smaller Stateless … martinduke
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Martin Thomson
- Re: [quicwg/base-drafts] Allow Smaller Stateless … martinduke
- Re: [quicwg/base-drafts] Allow Smaller Stateless … Martin Thomson