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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

80
testdata/Client-TLSv12-ALPN vendored
View file

@ -1,22 +1,28 @@
>>> Flow 1 (client to server)
00000000 16 03 01 00 ad 01 00 00 a9 03 03 00 00 00 00 00 |................|
00000000 16 03 01 01 10 01 00 01 0c 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 54 33 74 |.............T3t|
00000060 00 00 00 05 00 05 01 00 00 00 00 00 0a 00 0a 00 |................|
00000070 08 00 1d 00 17 00 18 00 19 00 0b 00 02 01 00 00 |................|
00000080 0d 00 12 00 10 04 01 04 03 05 01 05 03 06 01 06 |................|
00000090 03 02 01 02 03 ff 01 00 01 00 00 10 00 10 00 0e |................|
000000a0 06 70 72 6f 74 6f 32 06 70 72 6f 74 6f 31 00 12 |.proto2.proto1..|
000000b0 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 91 33 74 00 00 00 05 00 05 01 00 00 00 |....3t..........|
00000090 00 00 0a 00 0a 00 08 00 1d 00 17 00 18 00 19 00 |................|
000000a0 0b 00 02 01 00 00 0d 00 18 00 16 08 04 08 05 08 |................|
000000b0 06 04 01 04 03 05 01 05 03 06 01 06 03 02 01 02 |................|
000000c0 03 ff 01 00 01 00 00 10 00 10 00 0e 06 70 72 6f |.............pro|
000000d0 74 6f 32 06 70 72 6f 74 6f 31 00 12 00 00 00 2b |to2.proto1.....+|
000000e0 00 09 08 03 04 03 03 03 02 03 01 00 33 00 26 00 |............3.&.|
000000f0 24 00 1d 00 20 2f e5 7d a3 47 cd 62 43 15 28 da |$... /.}.G.bC.(.|
00000100 ac 5f bb 29 07 30 ff f6 84 af c4 cf c2 ed 90 99 |._.).0..........|
00000110 5f 58 cb 3b 74 |_X.;t|
>>> Flow 2 (server to client)
00000000 16 03 03 00 66 02 00 00 62 03 03 cb 8e 3f a0 07 |....f...b....?..|
00000010 c3 0e b3 b2 07 39 e2 2d b9 5f 03 31 05 b0 0d b6 |.....9.-._.1....|
00000020 c7 c5 4d 39 2b 3f 1a d7 38 43 69 20 f5 35 e2 93 |..M9+?..8Ci .5..|
00000030 75 c4 eb b3 eb a3 ad cd 9f e3 c6 dc b8 ea 20 7c |u............. ||
00000040 94 1b 9c 73 bd 2e af f1 4d 97 6d eb cc a8 00 00 |...s....M.m.....|
00000000 16 03 03 00 66 02 00 00 62 03 03 44 df ea e4 67 |....f...b..D...g|
00000010 62 77 d5 ee 65 9f 25 8b 54 86 1a 1f 09 46 9c 41 |bw..e.%.T....F.A|
00000020 d3 13 bb 6c f5 73 9a 22 eb cf 8d 20 e8 2e 63 9f |...l.s."... ..c.|
00000030 a3 64 aa 59 7b 88 f8 28 7e 57 00 7c 3a cc 80 5e |.d.Y{..(~W.|:..^|
00000040 7d 9a 03 1e 5d 89 c0 ff 53 aa c0 4d cc a8 00 00 |}...]...S..M....|
00000050 1a ff 01 00 01 00 00 0b 00 04 03 00 01 02 00 10 |................|
00000060 00 09 00 07 06 70 72 6f 74 6f 31 16 03 03 02 59 |.....proto1....Y|
00000070 0b 00 02 55 00 02 52 00 02 4f 30 82 02 4b 30 82 |...U..R..O0..K0.|
@ -57,31 +63,31 @@
000002a0 1c f1 0f a1 d8 40 83 61 c9 4c 72 2b 9d ae db 46 |.....@.a.Lr+...F|
000002b0 06 06 4d f4 c1 b3 3e c0 d1 bd 42 d4 db fe 3d 13 |..M...>...B...=.|
000002c0 60 84 5c 21 d3 3b e9 fa e7 16 03 03 00 ac 0c 00 |`.\!.;..........|
000002d0 00 a8 03 00 1d 20 4c d6 65 c1 74 2c 78 ab 45 87 |..... L.e.t,x.E.|
000002e0 bc 6e 9a cd 6c d4 2f 1e ed 1b ed 68 e0 20 3b 13 |.n..l./....h. ;.|
000002f0 7b b9 45 a1 38 78 04 01 00 80 31 26 2b b6 f8 fe |{.E.8x....1&+...|
00000300 bf 3c c6 8e ec 30 87 09 18 87 27 ec 9f 4f 93 74 |.<...0....'..O.t|
00000310 6b 65 94 12 3e 4d 5e a8 f7 0f ec 9e 60 c5 d5 a0 |ke..>M^.....`...|
00000320 c1 53 10 1d 8a 5b 82 2e 64 07 59 2e 0c b8 e3 90 |.S...[..d.Y.....|
00000330 20 a5 0a 88 3e 7e d6 b9 85 58 78 f1 58 56 a6 d8 | ...>~...Xx.XV..|
00000340 ee 60 52 59 d1 5b 16 58 de ce bc 09 79 99 65 e0 |.`RY.[.X....y.e.|
00000350 6b 0b 4e 3d fb 80 35 6b 56 48 33 b3 17 4e 61 cf |k.N=..5kVH3..Na.|
00000360 88 78 41 14 c8 fa 41 32 f9 2b 87 27 40 d7 2b 51 |.xA...A2.+.'@.+Q|
00000370 bd 16 54 cd f3 79 3a 7d c9 f0 16 03 03 00 04 0e |..T..y:}........|
000002d0 00 a8 03 00 1d 20 5e d1 0b 33 b0 c2 e9 12 eb 00 |..... ^..3......|
000002e0 4d 2f b8 1b 74 b0 b2 a0 01 7a 67 5a 54 9e a5 d1 |M/..t....zgZT...|
000002f0 c5 a5 2e 59 af 53 08 04 00 80 1f ac 73 b9 62 55 |...Y.S......s.bU|
00000300 a2 53 ae 64 db 2a f7 a1 a8 69 09 2d a2 fa 0c d8 |.S.d.*...i.-....|
00000310 9e e8 9a 2f b6 8f f0 e1 5e 53 bb 4c 9e fa e4 7a |.../....^S.L...z|
00000320 68 06 20 d5 e7 d0 de cf 29 a8 bd 6b 54 82 e4 bb |h. .....)..kT...|
00000330 dd 6e ab d1 d1 c9 af 77 01 b1 06 e1 9d 2f 00 7a |.n.....w...../.z|
00000340 2b e7 6f d1 da 7c 6f f5 2c 03 0d 57 9e 19 41 be |+.o..|o.,..W..A.|
00000350 91 85 17 c2 4a 5e 9b 87 44 0e df 81 64 b1 2e 4b |....J^..D...d..K|
00000360 64 80 fb f2 7f 23 f1 19 2c 8a 8d 6d 08 1e e9 0d |d....#..,..m....|
00000370 47 ec 94 b0 db c6 7a 44 79 04 16 03 03 00 04 0e |G.....zDy.......|
00000380 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 40 b0 f2 80 ce 38 b3 98 fd 34 ba |.... @....8...4.|
00000040 84 d3 f7 30 dc 9f 09 4b 0e 44 0b 79 b1 28 39 53 |...0...K.D.y.(9S|
00000050 94 03 db c8 2b |....+|
00000030 16 03 03 00 20 b9 03 a2 50 29 94 cc 5b 6c 3c 7f |.... ...P)..[l<.|
00000040 71 13 4b f0 3e 1a 13 df a0 a6 e3 15 a7 36 a2 40 |q.K.>........6.@|
00000050 86 88 d4 63 c0 |...c.|
>>> Flow 4 (server to client)
00000000 14 03 03 00 01 01 16 03 03 00 20 6f 6c ec 1a 29 |.......... ol..)|
00000010 d8 29 6c 10 67 12 4f 45 d3 64 85 e4 bc 28 5b 52 |.)l.g.OE.d...([R|
00000020 d0 46 45 3c ac bc fa 51 c1 00 84 |.FE<...Q...|
00000000 14 03 03 00 01 01 16 03 03 00 20 c0 4e 72 ff 58 |.......... .Nr.X|
00000010 40 70 90 8a ac 4e 94 28 ae 45 5e 2f 5f f4 c3 61 |@p...N.(.E^/_..a|
00000020 64 5d d9 af 43 a0 c1 65 78 2a 5e |d]..C..ex*^|
>>> Flow 5 (client to server)
00000000 17 03 03 00 16 7d 3e 49 f0 a6 61 18 fc 10 f4 7f |.....}>I..a.....|
00000010 e2 df b7 58 7d ad 31 84 de 60 e0 15 03 03 00 12 |...X}.1..`......|
00000020 08 cd 3f b6 58 d8 72 12 e0 f5 c6 8f f7 76 d5 29 |..?.X.r......v.)|
00000030 4f b2 |O.|
00000000 17 03 03 00 16 e3 fb 93 b5 c4 17 c2 6a 9c 15 ca |............j...|
00000010 de ca c6 49 67 d6 59 65 4a ee d2 15 03 03 00 12 |...Ig.YeJ.......|
00000020 8b f7 3f 3d ad 68 2b bf f2 96 18 21 d0 0f ea e8 |..?=.h+....!....|
00000030 a0 d9 |..|