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5db23cd389
To disable TLS 1.3, simply remove VersionTLS13 from supportedVersions, as tested by TestEscapeRoute, and amend documentation. To make it opt-in, revert the change to (*Config).supportedVersions from this CL. I did not have the heart to implement the early data skipping feature when I realized that it did not offer a choice between two abstraction-breaking options, but demanded them both (look for handshake type in case of HelloRetryRequest, trial decryption otherwise). It's a lot of complexity for an apparently small gain, but if anyone has strong opinions about it let me know. Note that in TLS 1.3 alerts are encrypted, so the close_notify peeking to return (n > 0, io.EOF) from Read doesn't work. If we are lucky, those servers that unexpectedly close connections after serving a single request will have stopped (maybe thanks to H/2) before they got updated to TLS 1.3. Relatedly, session tickets are now provisioned on the client first Read instead of at Handshake time, because they are, well, post-handshake messages. If this proves to be a problem we might try to peek at them. Doubled the tests that cover logic that's different in TLS 1.3. The benchmarks for TLS 1.2 compared to be0f3c286b5 (before TLS 1.3 and its refactors, after CL 142817 changed them to use real connections) show little movement. name old time/op new time/op delta HandshakeServer/RSA-8 795µs ± 1% 798µs ± 1% ~ (p=0.057 n=10+18) HandshakeServer/ECDHE-P256-RSA-8 903µs ± 0% 909µs ± 1% +0.68% (p=0.000 n=8+17) HandshakeServer/ECDHE-P256-ECDSA-P256-8 198µs ± 0% 204µs ± 1% +3.24% (p=0.000 n=9+18) HandshakeServer/ECDHE-X25519-ECDSA-P256-8 202µs ± 3% 208µs ± 1% +2.98% (p=0.000 n=9+20) HandshakeServer/ECDHE-P521-ECDSA-P521-8 15.5ms ± 1% 15.9ms ± 2% +2.49% (p=0.000 n=10+20) Throughput/MaxPacket/1MB-8 5.81ms ±23% 6.14ms ±44% ~ (p=0.605 n=8+18) Throughput/MaxPacket/2MB-8 8.91ms ±22% 8.74ms ±33% ~ (p=0.498 n=9+19) Throughput/MaxPacket/4MB-8 12.8ms ± 3% 14.0ms ±10% +9.74% (p=0.000 n=10+17) Throughput/MaxPacket/8MB-8 25.1ms ± 7% 24.6ms ±16% ~ (p=0.129 n=9+19) Throughput/MaxPacket/16MB-8 46.3ms ± 4% 45.9ms ±12% ~ (p=0.340 n=9+20) Throughput/MaxPacket/32MB-8 88.5ms ± 4% 86.0ms ± 4% -2.82% (p=0.004 n=10+20) Throughput/MaxPacket/64MB-8 173ms ± 2% 167ms ± 7% -3.42% (p=0.001 n=10+19) Throughput/DynamicPacket/1MB-8 5.88ms ± 4% 6.59ms ±64% ~ (p=0.232 n=9+18) Throughput/DynamicPacket/2MB-8 9.08ms ±12% 8.73ms ±21% ~ (p=0.408 n=10+18) Throughput/DynamicPacket/4MB-8 14.2ms ± 5% 14.0ms ±11% ~ (p=0.188 n=9+19) Throughput/DynamicPacket/8MB-8 25.1ms ± 6% 24.0ms ± 7% -4.39% (p=0.000 n=10+18) Throughput/DynamicPacket/16MB-8 45.6ms ± 3% 43.3ms ± 1% -5.22% (p=0.000 n=10+8) Throughput/DynamicPacket/32MB-8 88.4ms ± 3% 84.8ms ± 2% -4.06% (p=0.000 n=10+10) Throughput/DynamicPacket/64MB-8 175ms ± 3% 167ms ± 2% -4.63% (p=0.000 n=10+10) Latency/MaxPacket/200kbps-8 694ms ± 0% 694ms ± 0% -0.02% (p=0.000 n=9+9) Latency/MaxPacket/500kbps-8 279ms ± 0% 279ms ± 0% -0.09% (p=0.000 n=10+10) Latency/MaxPacket/1000kbps-8 140ms ± 0% 140ms ± 0% -0.15% (p=0.000 n=10+9) Latency/MaxPacket/2000kbps-8 71.1ms ± 0% 71.0ms ± 0% -0.09% (p=0.001 n=8+9) Latency/MaxPacket/5000kbps-8 30.5ms ± 6% 30.1ms ± 6% ~ (p=0.905 n=10+9) Latency/DynamicPacket/200kbps-8 134ms ± 0% 134ms ± 0% ~ (p=0.796 n=9+9) Latency/DynamicPacket/500kbps-8 54.8ms ± 0% 54.7ms ± 0% -0.18% (p=0.000 n=8+10) Latency/DynamicPacket/1000kbps-8 28.5ms ± 0% 29.1ms ± 8% ~ (p=0.173 n=8+10) Latency/DynamicPacket/2000kbps-8 15.3ms ± 6% 15.9ms ±10% ~ (p=0.905 n=9+10) Latency/DynamicPacket/5000kbps-8 9.14ms ±21% 9.65ms ±82% ~ (p=0.529 n=10+10) name old speed new speed delta Throughput/MaxPacket/1MB-8 175MB/s ±13% 167MB/s ±64% ~ (p=0.646 n=7+20) Throughput/MaxPacket/2MB-8 241MB/s ±25% 241MB/s ±40% ~ (p=0.660 n=9+20) Throughput/MaxPacket/4MB-8 328MB/s ± 3% 300MB/s ± 9% -8.70% (p=0.000 n=10+17) Throughput/MaxPacket/8MB-8 335MB/s ± 7% 340MB/s ±17% ~ (p=0.212 n=9+20) Throughput/MaxPacket/16MB-8 363MB/s ± 4% 367MB/s ±11% ~ (p=0.340 n=9+20) Throughput/MaxPacket/32MB-8 379MB/s ± 4% 390MB/s ± 4% +2.93% (p=0.004 n=10+20) Throughput/MaxPacket/64MB-8 388MB/s ± 2% 401MB/s ± 7% +3.25% (p=0.004 n=10+20) Throughput/DynamicPacket/1MB-8 178MB/s ± 4% 157MB/s ±73% ~ (p=0.127 n=9+20) Throughput/DynamicPacket/2MB-8 232MB/s ±11% 243MB/s ±18% ~ (p=0.415 n=10+18) Throughput/DynamicPacket/4MB-8 296MB/s ± 5% 299MB/s ±15% ~ (p=0.295 n=9+20) Throughput/DynamicPacket/8MB-8 334MB/s ± 6% 350MB/s ± 7% +4.58% (p=0.000 n=10+18) Throughput/DynamicPacket/16MB-8 368MB/s ± 3% 388MB/s ± 1% +5.48% (p=0.000 n=10+8) Throughput/DynamicPacket/32MB-8 380MB/s ± 3% 396MB/s ± 2% +4.20% (p=0.000 n=10+10) Throughput/DynamicPacket/64MB-8 384MB/s ± 3% 403MB/s ± 2% +4.83% (p=0.000 n=10+10) Comparing TLS 1.2 and TLS 1.3 at tip shows a slight (~5-10%) slowdown of handshakes, which might be worth looking at next cycle, but the latency improvements are expected to overshadow that. name old time/op new time/op delta HandshakeServer/ECDHE-P256-RSA-8 909µs ± 1% 963µs ± 0% +5.87% (p=0.000 n=17+18) HandshakeServer/ECDHE-P256-ECDSA-P256-8 204µs ± 1% 225µs ± 2% +10.20% (p=0.000 n=18+20) HandshakeServer/ECDHE-X25519-ECDSA-P256-8 208µs ± 1% 230µs ± 2% +10.35% (p=0.000 n=20+18) HandshakeServer/ECDHE-P521-ECDSA-P521-8 15.9ms ± 2% 15.9ms ± 1% ~ (p=0.444 n=20+19) Throughput/MaxPacket/1MB-8 6.14ms ±44% 7.07ms ±46% ~ (p=0.057 n=18+19) Throughput/MaxPacket/2MB-8 8.74ms ±33% 8.61ms ± 9% ~ (p=0.552 n=19+17) Throughput/MaxPacket/4MB-8 14.0ms ±10% 14.1ms ±12% ~ (p=0.707 n=17+20) Throughput/MaxPacket/8MB-8 24.6ms ±16% 25.6ms ±14% ~ (p=0.107 n=19+20) Throughput/MaxPacket/16MB-8 45.9ms ±12% 44.7ms ± 6% ~ (p=0.607 n=20+19) Throughput/MaxPacket/32MB-8 86.0ms ± 4% 87.9ms ± 8% ~ (p=0.113 n=20+19) Throughput/MaxPacket/64MB-8 167ms ± 7% 169ms ± 2% +1.26% (p=0.011 n=19+19) Throughput/DynamicPacket/1MB-8 6.59ms ±64% 6.79ms ±43% ~ (p=0.480 n=18+19) Throughput/DynamicPacket/2MB-8 8.73ms ±21% 9.58ms ±13% +9.71% (p=0.006 n=18+20) Throughput/DynamicPacket/4MB-8 14.0ms ±11% 13.9ms ±10% ~ (p=0.687 n=19+20) Throughput/DynamicPacket/8MB-8 24.0ms ± 7% 24.6ms ± 8% +2.36% (p=0.045 n=18+17) Throughput/DynamicPacket/16MB-8 43.3ms ± 1% 44.3ms ± 2% +2.48% (p=0.001 n=8+9) Throughput/DynamicPacket/32MB-8 84.8ms ± 2% 86.7ms ± 2% +2.27% (p=0.000 n=10+10) Throughput/DynamicPacket/64MB-8 167ms ± 2% 170ms ± 3% +1.89% (p=0.005 n=10+10) Latency/MaxPacket/200kbps-8 694ms ± 0% 699ms ± 0% +0.65% (p=0.000 n=9+10) Latency/MaxPacket/500kbps-8 279ms ± 0% 280ms ± 0% +0.68% (p=0.000 n=10+10) Latency/MaxPacket/1000kbps-8 140ms ± 0% 141ms ± 0% +0.59% (p=0.000 n=9+9) Latency/MaxPacket/2000kbps-8 71.0ms ± 0% 71.3ms ± 0% +0.42% (p=0.000 n=9+9) Latency/MaxPacket/5000kbps-8 30.1ms ± 6% 30.7ms ±10% +1.93% (p=0.019 n=9+9) Latency/DynamicPacket/200kbps-8 134ms ± 0% 138ms ± 0% +3.22% (p=0.000 n=9+10) Latency/DynamicPacket/500kbps-8 54.7ms ± 0% 56.3ms ± 0% +3.03% (p=0.000 n=10+8) Latency/DynamicPacket/1000kbps-8 29.1ms ± 8% 29.1ms ± 0% ~ (p=0.173 n=10+8) Latency/DynamicPacket/2000kbps-8 15.9ms ±10% 16.4ms ±36% ~ (p=0.633 n=10+8) Latency/DynamicPacket/5000kbps-8 9.65ms ±82% 8.32ms ± 8% ~ (p=0.573 n=10+8) name old speed new speed delta Throughput/MaxPacket/1MB-8 167MB/s ±64% 155MB/s ±55% ~ (p=0.224 n=20+19) Throughput/MaxPacket/2MB-8 241MB/s ±40% 244MB/s ± 9% ~ (p=0.407 n=20+17) Throughput/MaxPacket/4MB-8 300MB/s ± 9% 298MB/s ±11% ~ (p=0.707 n=17+20) Throughput/MaxPacket/8MB-8 340MB/s ±17% 330MB/s ±13% ~ (p=0.201 n=20+20) Throughput/MaxPacket/16MB-8 367MB/s ±11% 375MB/s ± 5% ~ (p=0.607 n=20+19) Throughput/MaxPacket/32MB-8 390MB/s ± 4% 382MB/s ± 8% ~ (p=0.113 n=20+19) Throughput/MaxPacket/64MB-8 401MB/s ± 7% 397MB/s ± 2% -0.96% (p=0.030 n=20+19) Throughput/DynamicPacket/1MB-8 157MB/s ±73% 156MB/s ±39% ~ (p=0.738 n=20+20) Throughput/DynamicPacket/2MB-8 243MB/s ±18% 220MB/s ±14% -9.65% (p=0.006 n=18+20) Throughput/DynamicPacket/4MB-8 299MB/s ±15% 303MB/s ± 9% ~ (p=0.512 n=20+20) Throughput/DynamicPacket/8MB-8 350MB/s ± 7% 342MB/s ± 8% -2.27% (p=0.045 n=18+17) Throughput/DynamicPacket/16MB-8 388MB/s ± 1% 378MB/s ± 2% -2.41% (p=0.001 n=8+9) Throughput/DynamicPacket/32MB-8 396MB/s ± 2% 387MB/s ± 2% -2.21% (p=0.000 n=10+10) Throughput/DynamicPacket/64MB-8 403MB/s ± 2% 396MB/s ± 3% -1.84% (p=0.005 n=10+10) Fixes #9671 Change-Id: Ieb57c5140eb2c083b8be0d42b240cd2eeec0dcf6 Reviewed-on: https://go-review.googlesource.com/c/147638 Run-TryBot: Filippo Valsorda <filippo@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Adam Langley <agl@golang.org>
11 lines
758 B
Text
11 lines
758 B
Text
>>> Flow 1 (client to server)
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00000000 16 03 01 00 77 01 00 00 73 03 02 0a 6b c9 55 9d |....w...s...k.U.|
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00000010 bf 4e 61 b2 0a c7 c6 96 9f eb 90 91 87 ca d3 d3 |.Na.............|
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00000020 62 dc b6 b4 db ea 41 fe 43 3e a3 00 00 14 c0 0a |b.....A.C>......|
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00000030 c0 14 00 39 c0 09 c0 13 00 33 00 35 00 2f 00 ff |...9.....3.5./..|
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00000040 56 00 01 00 00 36 00 00 00 0e 00 0c 00 00 09 31 |V....6.........1|
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00000050 32 37 2e 30 2e 30 2e 31 00 0b 00 04 03 00 01 02 |27.0.0.1........|
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00000060 00 0a 00 0c 00 0a 00 1d 00 17 00 1e 00 19 00 18 |................|
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00000070 00 23 00 00 00 16 00 00 00 17 00 00 |.#..........|
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>>> Flow 2 (server to client)
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00000000 15 03 02 00 02 02 56 |......V|
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