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crypto/tls: enable TLS 1.3 and update tests

Browse source 
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>
This commit is contained in:
Filippo Valsorda 2018-11-05 22:52:51 -05:00
parent 07b241c4b9
commit 5db23cd389
83 changed files with 3733 additions and 3281 deletions
Download patch file Download diff file Expand all files Collapse all files

82
testdata/Client-TLSv12-RenegotiationRejected vendored
View file

@ -1,20 +1,26 @@
>>> Flow 1 (client to server)
00000000 16 03 01 00 95 01 00 00 91 03 03 00 00 00 00 00 |................|
00000000 16 03 01 00 f8 01 00 00 f4 03 03 00 00 00 00 00 |................|
00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000020 00 00 00 00 00 00 00 00 00 00 00 00 00 2c cc a8 |.............,..|
00000030 cc a9 c0 2f c0 2b c0 30 c0 2c c0 27 c0 13 c0 23 |.../.+.0.,.'...#|
00000040 c0 09 c0 14 c0 0a 00 9c 00 9d 00 3c 00 2f 00 35 |...........<./.5|
00000050 c0 12 00 0a 00 05 c0 11 c0 07 01 00 00 3c 00 05 |.............<..|
00000060 00 05 01 00 00 00 00 00 0a 00 0a 00 08 00 1d 00 |................|
00000070 17 00 18 00 19 00 0b 00 02 01 00 00 0d 00 12 00 |................|
00000080 10 04 01 04 03 05 01 05 03 06 01 06 03 02 01 02 |................|
00000090 03 ff 01 00 01 00 00 12 00 00 |..........|
00000020 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 00 |........... ....|
00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 32 cc a8 |.............2..|
00000050 cc a9 c0 2f c0 2b c0 30 c0 2c c0 27 c0 13 c0 23 |.../.+.0.,.'...#|
00000060 c0 09 c0 14 c0 0a 00 9c 00 9d 00 3c 00 2f 00 35 |...........<./.5|
00000070 c0 12 00 0a 00 05 c0 11 c0 07 13 01 13 03 13 02 |................|
00000080 01 00 00 79 00 05 00 05 01 00 00 00 00 00 0a 00 |...y............|
00000090 0a 00 08 00 1d 00 17 00 18 00 19 00 0b 00 02 01 |................|
000000a0 00 00 0d 00 18 00 16 08 04 08 05 08 06 04 01 04 |................|
000000b0 03 05 01 05 03 06 01 06 03 02 01 02 03 ff 01 00 |................|
000000c0 01 00 00 12 00 00 00 2b 00 09 08 03 04 03 03 03 |.......+........|
000000d0 02 03 01 00 33 00 26 00 24 00 1d 00 20 2f e5 7d |....3.&.$... /.}|
000000e0 a3 47 cd 62 43 15 28 da ac 5f bb 29 07 30 ff f6 |.G.bC.(.._.).0..|
000000f0 84 af c4 cf c2 ed 90 99 5f 58 cb 3b 74 |........_X.;t|
>>> Flow 2 (server to client)
00000000 16 03 03 00 59 02 00 00 55 03 03 db bb 55 42 4d |....Y...U....UBM|
00000010 7e 2c 47 97 1c 97 97 e4 35 a1 a9 f4 d6 1a 2f 97 |~,G.....5...../.|
00000020 96 f7 d6 3b 7e 81 7c 96 f4 42 f8 20 b1 92 02 f0 |...;~.|..B. ....|
00000030 91 56 81 2c 4e ba e0 02 26 c7 f6 d9 0a ef e9 40 |.V.,N...&......@|
00000040 54 10 60 a4 d3 e1 b5 cf d3 ad 59 c7 cc a8 00 00 |T.`.......Y.....|
00000000 16 03 03 00 59 02 00 00 55 03 03 e0 77 db d2 ca |....Y...U...w...|
00000010 46 29 bc ce 1a ee 39 d0 58 35 74 c0 1f 17 86 c0 |F)....9.X5t.....|
00000020 a8 58 ad b6 e3 f5 e0 80 ae 71 43 20 cd a1 49 bb |.X.......qC ..I.|
00000030 94 bc fc 26 a5 56 ea dc 9d 9a b4 ee c7 70 fa 72 |...&.V.......p.r|
00000040 04 c1 d8 e2 a9 63 24 9a 07 18 a5 fa cc a8 00 00 |.....c$.........|
00000050 0d ff 01 00 01 00 00 0b 00 04 03 00 01 02 16 03 |................|
00000060 03 02 59 0b 00 02 55 00 02 52 00 02 4f 30 82 02 |..Y...U..R..O0..|
00000070 4b 30 82 01 b4 a0 03 02 01 02 02 09 00 e8 f0 9d |K0..............|
@ -54,36 +60,36 @@
00000290 77 8d 0c 1c f1 0f a1 d8 40 83 61 c9 4c 72 2b 9d |w.......@.a.Lr+.|
000002a0 ae db 46 06 06 4d f4 c1 b3 3e c0 d1 bd 42 d4 db |..F..M...>...B..|
000002b0 fe 3d 13 60 84 5c 21 d3 3b e9 fa e7 16 03 03 00 |.=.`.\!.;.......|
000002c0 ac 0c 00 00 a8 03 00 1d 20 7c 4a f0 08 30 5f 04 |........ |J..0_.|
000002d0 46 3d 38 6c 55 57 44 82 a5 98 a1 fd 60 26 ce 03 |F=8lUWD.....`&..|
000002e0 cd 93 14 0a 0b 69 02 bf 03 04 01 00 80 c6 a5 05 |.....i..........|
000002f0 fa 60 d4 cb 47 ad 03 16 04 bf a7 43 7c 84 54 b3 |.`..G......C|.T.|
00000300 29 dc 73 29 d2 43 29 90 3b 1f ff dd da 8b 56 06 |).s).C).;.....V.|
00000310 08 9d fd 1f f6 42 7a 3e f9 ab 76 87 0b 42 e3 d8 |.....Bz>..v..B..|
00000320 29 32 55 50 d0 1a 1e 00 8e c9 83 cc 08 bc e5 39 |)2UP...........9|
00000330 9c 58 79 ab 27 5a 55 21 99 fb 2b ee 3a 3a a2 27 |.Xy.'ZU!..+.::.'|
00000340 d6 64 a7 d9 c9 c6 46 dc 03 0a 30 b4 1b 8a 61 36 |.d....F...0...a6|
00000350 b8 22 46 6a ea cc ee 30 e5 58 8e 7e 09 b2 0d 6a |."Fj...0.X.~...j|
00000360 b5 84 54 ea ab ed d5 29 1e 7e 67 17 48 16 03 03 |..T....).~g.H...|
000002c0 ac 0c 00 00 a8 03 00 1d 20 96 83 76 7c af 6c af |........ ..v|.l.|
000002d0 be 20 ec 79 87 9e e0 23 fa 34 78 96 91 30 3b 78 |. .y...#.4x..0;x|
000002e0 1b 3f 0f 73 b4 45 05 2f 22 08 04 00 80 38 fe 9b |.?.s.E./"....8..|
000002f0 e1 c2 82 13 ce 00 c2 0e 08 98 22 d0 4d 86 38 97 |..........".M.8.|
00000300 c1 78 b9 11 a4 9d af e0 75 d1 c9 dc a1 dc 25 03 |.x......u.....%.|
00000310 cd ba 15 2e be 0a 61 39 4f 4f d3 48 95 61 3f 2c |......a9OO.H.a?,|
00000320 fb e1 63 e7 8f 51 b4 1f c8 98 f7 3e 23 11 8c 4a |..c..Q.....>#..J|
00000330 b4 76 15 cc 83 bd dc 6f af 0c d9 f1 80 0d 9b a2 |.v.....o........|
00000340 a3 ac 2f 26 c8 d3 23 94 bc c9 3d fb 44 4e 47 3e |../&..#...=.DNG>|
00000350 3b de ce 24 b8 ab 52 f3 5f 26 96 7f e6 a4 ec 9e |;..$..R._&......|
00000360 fc 44 4a 1b 73 d1 ea 2a a9 b9 c8 ba f6 16 03 03 |.DJ.s..*........|
00000370 00 04 0e 00 00 00 |......|
>>> Flow 3 (client to server)
00000000 16 03 03 00 25 10 00 00 21 20 2f e5 7d a3 47 cd |....%...! /.}.G.|
00000010 62 43 15 28 da ac 5f bb 29 07 30 ff f6 84 af c4 |bC.(.._.).0.....|
00000020 cf c2 ed 90 99 5f 58 cb 3b 74 14 03 03 00 01 01 |....._X.;t......|
00000030 16 03 03 00 20 c8 0e 66 f9 0a 9c 23 fb ed 6a 04 |.... ..f...#..j.|
00000040 83 b3 72 c4 5f 7b 2f 9f 03 c9 32 d5 60 30 6d 07 |..r._{/...2.`0m.|
00000050 e7 d3 fc ed 83 |.....|
00000030 16 03 03 00 20 f3 a4 06 da e0 55 ed 41 d1 71 2a |.... .....U.A.q*|
00000040 d5 aa 00 31 eb 23 23 52 20 43 36 8f 10 70 d3 e0 |...1.##R C6..p..|
00000050 6d cc 77 f9 68 |m.w.h|
>>> Flow 4 (server to client)
00000000 14 03 03 00 01 01 16 03 03 00 20 2e 07 51 3c b8 |.......... ..Q<.|
00000010 97 34 f5 21 da 22 b1 e9 e6 98 61 83 22 06 45 c2 |.4.!."....a.".E.|
00000020 db 60 08 27 bc 64 30 3e 1c 77 70 |.`.'.d0>.wp|
00000000 14 03 03 00 01 01 16 03 03 00 20 f5 84 89 dc 37 |.......... ....7|
00000010 bf d9 75 10 c2 30 50 9e 2c 71 00 30 46 f3 af 00 |..u..0P.,q.0F...|
00000020 9c 6c fd 78 2d d1 54 88 98 c4 8a |.l.x-.T....|
>>> Flow 5 (client to server)
00000000 17 03 03 00 16 89 dc 04 82 f8 16 f2 0d 91 53 80 |..............S.|
00000010 7a a7 7b 43 66 f4 95 b3 c2 db ec |z.{Cf......|
00000000 17 03 03 00 16 e7 10 a8 74 64 64 01 ea af 4a f2 |........tdd...J.|
00000010 6a 09 c7 60 49 ba 59 71 bc f6 90 |j..`I.Yq...|
>>> Flow 6 (server to client)
00000000 16 03 03 00 14 c7 99 03 a6 e5 88 0c f4 31 22 67 |.............1"g|
00000010 ee 08 ff ff df d8 5d 63 ad |......]c.|
00000000 16 03 03 00 14 4c ff 21 fb 5d ef 36 28 6f f8 7b |.....L.!.].6(o.{|
00000010 c0 08 b6 1b e3 17 c3 6e 49 |.......nI|
>>> Flow 7 (client to server)
00000000 15 03 03 00 12 ea 8d 5d 03 03 80 85 91 ca cf 7e |.......].......~|
00000010 10 53 60 44 f6 86 3d 15 03 03 00 12 96 b9 d3 2b |.S`D..=........+|
00000020 c9 d0 bd 38 c3 4d 32 10 4c e9 c4 9a b3 01 |...8.M2.L.....|
00000000 15 03 03 00 12 ab 44 a2 47 b2 14 a3 5f 40 1b 56 |......D.G..._@.V|
00000010 d0 f0 3f ea 95 cf aa 15 03 03 00 12 28 1b e3 5f |..?.........(.._|
00000020 8c c4 87 b4 d6 28 2f c9 93 30 66 7a 35 ce |.....(/..0fz5.|