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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

76
testdata/Server-TLSv12-ECDHE-ECDSA-AES vendored
View file

@ -1,16 +1,18 @@
>>> Flow 1 (client to server)
00000000 16 03 01 00 73 01 00 00 6f 03 03 8b 7a 0c fa 8b |....s...o...z...|
00000010 92 b9 b6 d6 b8 93 50 29 07 2e 8e 70 9b a1 55 65 |......P)...p..Ue|
00000020 ba 05 9d 74 2e 7e a6 2a 10 e1 3c 00 00 04 c0 0a |...t.~.*..<.....|
00000030 00 ff 01 00 00 42 00 0b 00 04 03 00 01 02 00 0a |.....B..........|
00000040 00 0a 00 08 00 1d 00 17 00 19 00 18 00 0d 00 20 |............... |
00000050 00 1e 06 01 06 02 06 03 05 01 05 02 05 03 04 01 |................|
00000060 04 02 04 03 03 01 03 02 03 03 02 01 02 02 02 03 |................|
00000070 00 16 00 00 00 17 00 00 |........|
00000000 16 03 01 00 97 01 00 00 93 03 03 85 04 eb 6f 6a |..............oj|
00000010 88 25 0b 90 fb 37 a8 63 c7 18 1a ac 91 a9 aa 24 |.%...7.c.......$|
00000020 c3 99 1a 69 e5 f5 1e 12 73 ef 1a 00 00 04 c0 0a |...i....s.......|
00000030 00 ff 01 00 00 66 00 00 00 0e 00 0c 00 00 09 31 |.....f.........1|
00000040 32 37 2e 30 2e 30 2e 31 00 0b 00 04 03 00 01 02 |27.0.0.1........|
00000050 00 0a 00 0c 00 0a 00 1d 00 17 00 1e 00 19 00 18 |................|
00000060 00 16 00 00 00 17 00 00 00 0d 00 30 00 2e 04 03 |...........0....|
00000070 05 03 06 03 08 07 08 08 08 09 08 0a 08 0b 08 04 |................|
00000080 08 05 08 06 04 01 05 01 06 01 03 03 02 03 03 01 |................|
00000090 02 01 03 02 02 02 04 02 05 02 06 02 |............|
>>> Flow 2 (server to client)
00000000 16 03 03 00 31 02 00 00 2d 03 03 00 00 00 00 00 |....1...-.......|
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 c0 0a 00 00 |................|
00000020 00 00 00 44 4f 57 4e 47 52 44 01 00 c0 0a 00 00 |...DOWNGRD......|
00000030 05 ff 01 00 01 00 16 03 03 02 0e 0b 00 02 0a 00 |................|
00000040 02 07 00 02 04 30 82 02 00 30 82 01 62 02 09 00 |.....0...0..b...|
00000050 b8 bf 2d 47 a0 d2 eb f4 30 09 06 07 2a 86 48 ce |..-G....0...*.H.|
@ -47,36 +49,36 @@
00000240 7b 6a 0f 39 95 12 07 8f 2a 16 03 03 00 b7 0c 00 |{j.9....*.......|
00000250 00 b3 03 00 1d 20 2f e5 7d a3 47 cd 62 43 15 28 |..... /.}.G.bC.(|
00000260 da ac 5f bb 29 07 30 ff f6 84 af c4 cf c2 ed 90 |.._.).0.........|
00000270 99 5f 58 cb 3b 74 06 03 00 8b 30 81 88 02 42 00 |._X.;t....0...B.|
00000280 cb 8e af 48 f8 79 66 5b 9a 52 8d 67 ec 13 02 a5 |...H.yf[.R.g....|
00000290 ab 77 9e 15 17 c2 4e ff 7a b4 5b 53 1a 16 22 3f |.w....N.z.[S.."?|
000002a0 b8 83 40 99 64 67 b3 54 19 29 6b 2d a8 3c 63 44 |..@.dg.T.)k-.<cD|
000002b0 d5 45 20 3f 9a 8e b9 71 d6 7a 85 d5 aa 99 7f 02 |.E ?...q.z......|
000002c0 a8 02 42 00 c1 15 3b 9b 9d de eb 2e 63 52 35 b2 |..B...;.....cR5.|
000002d0 1e 63 b1 1a 20 58 e5 e7 6d b3 e8 c8 3d 0f af 98 |.c.. X..m...=...|
000002e0 4a 2a a0 f8 8e aa 2a f2 2a 1e 41 98 be 6f 6c bc |J*....*.*.A..ol.|
000002f0 ad 57 1d 2b 50 0b d9 47 d2 7a 62 08 a5 e5 28 44 |.W.+P..G.zb...(D|
00000300 a7 e2 eb 4a b8 16 03 03 00 04 0e 00 00 00 |...J..........|
00000270 99 5f 58 cb 3b 74 04 03 00 8b 30 81 88 02 42 01 |._X.;t....0...B.|
00000280 4b 46 70 e2 b9 cb ea 38 8f 00 6e 47 5e 1a 1c a1 |KFp....8..nG^...|
00000290 fb a9 1c 3d a1 88 0d c4 8a 45 af 50 32 ba 36 e9 |...=.....E.P2.6.|
000002a0 f5 b0 09 aa 39 1a 96 9e c6 74 98 ad b8 09 79 b4 |....9....t....y.|
000002b0 5b 01 8f 9a 66 11 0e a8 6a ac 61 f4 40 3d 4f 9b |[...f...j.a.@=O.|
000002c0 9f 02 42 00 a1 2f b0 46 41 42 35 5a 4b 7b bb 22 |..B../.FAB5ZK{."|
000002d0 d9 a5 31 23 2c 94 8f 48 39 29 c6 33 6a 52 a6 22 |..1#,..H9).3jR."|
000002e0 5d 72 5b 2c 45 e9 0d 0a fb f4 24 26 d4 50 5e 20 |]r[,E.....$&.P^ |
000002f0 f4 fc 6c a9 62 4b db a1 74 88 1a ef bd 78 dd e8 |..l.bK..t....x..|
00000300 5a 04 be ca 25 16 03 03 00 04 0e 00 00 00 |Z...%.........|
>>> Flow 3 (client to server)
00000000 16 03 03 00 25 10 00 00 21 20 d2 c0 5b 2a f2 05 |....%...! ..[*..|
00000010 4d 57 b0 d0 8b 51 b0 7f 1f 71 8b d9 55 76 46 c9 |MW...Q...q..UvF.|
00000020 a8 40 44 2c a1 51 74 50 4a 22 14 03 03 00 01 01 |.@D,.QtPJ"......|
00000030 16 03 03 00 40 79 6d 1b bc e7 5b 5c 7b 99 62 2b |....@ym...[\{.b+|
00000040 4a 1a b2 0f 76 72 67 d1 ec 25 04 5f fb 25 f4 9c |J...vrg..%._.%..|
00000050 9c 47 bb b9 85 28 59 0c 0c 15 3f 86 a5 16 c8 ef |.G...(Y...?.....|
00000060 a4 e6 8e c0 96 37 47 5a c8 cd f2 90 41 9b 94 dc |.....7GZ....A...|
00000070 ec fe e2 df d4 |.....|
00000000 16 03 03 00 25 10 00 00 21 20 80 d6 42 fa 29 87 |....%...! ..B.).|
00000010 df 45 d0 44 75 c7 bd a9 be e7 8c ef 3f 74 3d bd |.E.Du.......?t=.|
00000020 e2 49 40 ad f9 7f 90 ff 5e 75 14 03 03 00 01 01 |.I@.....^u......|
00000030 16 03 03 00 40 dc c3 d3 7b 19 19 67 e1 f1 f7 3b |....@...{..g...;|
00000040 f7 76 0f da df 38 88 73 61 34 83 04 b9 ab 61 72 |.v...8.sa4....ar|
00000050 2f 38 cb c3 1b 04 60 20 32 a8 db 46 63 85 f2 21 |/8....` 2..Fc..!|
00000060 54 6e 9d 5d ba 0a 07 2e 9d 38 af 76 0e 29 b1 c6 |Tn.].....8.v.)..|
00000070 d5 b0 f8 b3 39 |....9|
>>> Flow 4 (server to client)
00000000 14 03 03 00 01 01 16 03 03 00 40 00 00 00 00 00 |..........@.....|
00000010 00 00 00 00 00 00 00 00 00 00 00 8a 19 1e 82 d0 |................|
00000020 46 f4 79 8d 9b fd 55 25 a9 6b d8 30 b3 41 f8 df |F.y...U%.k.0.A..|
00000030 a5 f8 9d 4c fe cc e1 1c 62 70 cf 60 12 cb 14 3e |...L....bp.`...>|
00000040 86 e9 d1 bb 46 60 7d b5 74 5f f5 17 03 03 00 40 |....F`}.t_.....@|
00000010 00 00 00 00 00 00 00 00 00 00 00 4f dc d7 df d3 |...........O....|
00000020 ab 43 f7 20 57 51 28 d2 0a ce ac e0 88 5c 01 c5 |.C. WQ(......\..|
00000030 22 f7 37 e8 ac d3 38 ab 1b 43 53 b1 a7 35 6f 86 |".7...8..CS..5o.|
00000040 2b a5 9b 98 8f 9d a3 ff 11 d2 c7 17 03 03 00 40 |+..............@|
00000050 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
00000060 97 1c 70 9d cf 17 89 8c c7 ad 84 38 6e f5 c6 d1 |..p........8n...|
00000070 c8 6e b2 a2 69 27 9a 59 fb bc af c0 15 47 40 b9 |.n..i'.Y.....G@.|
00000080 e1 35 9b 37 50 9f 05 53 60 f8 f9 91 40 67 36 a8 |.5.7P..S`...@g6.|
00000060 3f 4c d0 ee d7 12 3c ef 73 55 b0 8d b7 78 8a de |?L....<.sU...x..|
00000070 d9 a5 c0 58 25 95 ae 8c 0f 85 bd ee 93 80 f6 3d |...X%..........=|
00000080 ac 28 a6 87 98 d2 4c e4 54 a6 a5 ef 12 70 0c 37 |.(....L.T....p.7|
00000090 15 03 03 00 30 00 00 00 00 00 00 00 00 00 00 00 |....0...........|
000000a0 00 00 00 00 00 0f 90 a8 00 9e 0e 51 29 b5 96 da |...........Q)...|
000000b0 b1 0d 81 7b 71 ff c9 de f8 aa c4 bd e1 7d 0d 35 |...{q........}.5|
000000c0 b1 ed ae 20 3c |... <|
000000a0 00 00 00 00 00 e3 51 95 2e 0c 71 a9 e6 c6 4d bc |......Q...q...M.|
000000b0 2e 89 99 c0 db e8 59 0a e0 a2 f8 46 ef 3b 20 c6 |......Y....F.; .|
000000c0 8d a4 55 a2 5e |..U.^|