mirror of
https://github.com/refraction-networking/utls.git
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89df05a1c4
We now have a (well, two, depending on AES hardware support) universal
cipher suite preference order, based on their security and performance.
Peer and application lists are now treated as filters (and AES hardware
support hints) that are applied to this universal order.
This removes a complex and nuanced decision from the application's
responsibilities, one which we are better equipped to make and which
applications usually don't need to have an opinion about. It also lets
us worry less about what suites we support or enable, because we can be
confident that bad ones won't be selected over good ones.
This also moves 3DES suites to InsecureCipherSuites(), even if they are
not disabled by default. Just because we can keep them as a last resort
it doesn't mean they are secure. Thankfully we had not promised that
Insecure means disabled by default.
Notable test changes:
- TestCipherSuiteCertPreferenceECDSA was testing that we'd pick the
right certificate regardless of CipherSuite ordering, which is now
completely ignored, as tested by TestCipherSuitePreference. Removed.
- The openssl command of TestHandshakeServerExportKeyingMaterial was
broken for TLS 1.0 in CL 262857, but its golden file was not
regenerated, so the test kept passing. It now broke because the
selected suite from the ones in the golden file changed.
- In TestAESCipherReordering, "server strongly prefers AES-GCM" is
removed because there is no way for a server to express a strong
preference anymore; "client prefers AES-GCM and AES-CBC over ChaCha"
switched to ChaCha20 when the server lacks AES hardware; and finally
"client supports multiple AES-GCM" changed to always prefer AES-128
per the universal preference list.
* this is going back on an explicit decision from CL 262857, and
while that client order is weird and does suggest a strong dislike
for ChaCha20, we have a strong dislike for software AES, so it
didn't feel worth making the logic more complex
- All Client-* golden files had to be regenerated because the
ClientHello cipher suites have changed.
(Even when Config.CipherSuites was limited to one suite, the TLS 1.3
default order changed.)
Fixes #45430
Fixes #41476 (as 3DES is now always the last resort)
Change-Id: If5f5d356c0f8d1f1c7542fb06644a478d6bad1e5
Reviewed-on: https://go-review.googlesource.com/c/go/+/314609
Run-TryBot: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
91 lines
6.8 KiB
Text
91 lines
6.8 KiB
Text
>>> Flow 1 (client to server)
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00000000 16 03 01 00 fa 01 00 00 f6 03 03 00 00 00 00 00 |................|
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00000010 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
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00000020 00 00 00 00 00 00 00 00 00 00 00 20 00 00 00 00 |........... ....|
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00000030 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
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00000040 00 00 00 00 00 00 00 00 00 00 00 00 00 32 cc a9 |.............2..|
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00000050 cc a8 c0 2b c0 2f c0 2c c0 30 c0 09 c0 13 c0 0a |...+./.,.0......|
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00000060 c0 14 00 9c 00 9d 00 2f 00 35 c0 12 00 0a c0 23 |......./.5.....#|
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00000070 c0 27 00 3c c0 07 c0 11 00 05 13 03 13 01 13 02 |.'.<............|
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00000080 01 00 00 7b 00 05 00 05 01 00 00 00 00 00 0a 00 |...{............|
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00000090 0a 00 08 00 1d 00 17 00 18 00 19 00 0b 00 02 01 |................|
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000000a0 00 00 0d 00 1a 00 18 08 04 04 03 08 07 08 05 08 |................|
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000000b0 06 04 01 05 01 06 01 05 03 06 03 02 01 02 03 ff |................|
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000000c0 01 00 01 00 00 12 00 00 00 2b 00 09 08 03 04 03 |.........+......|
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000000d0 03 03 02 03 01 00 33 00 26 00 24 00 1d 00 20 2f |......3.&.$... /|
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000000e0 e5 7d a3 47 cd 62 43 15 28 da ac 5f bb 29 07 30 |.}.G.bC.(.._.).0|
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000000f0 ff f6 84 af c4 cf c2 ed 90 99 5f 58 cb 3b 74 |.........._X.;t|
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>>> Flow 2 (server to client)
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00000000 16 03 01 00 59 02 00 00 55 03 01 a3 4e 79 27 af |....Y...U...Ny'.|
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00000010 c8 a3 15 a4 c2 7a 54 58 54 0e 0d 93 c2 ff e1 f9 |.....zTXT.......|
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00000020 55 ab 2c ea 32 cf d2 47 2e d7 8e 20 49 08 d1 66 |U.,.2..G... I..f|
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00000030 9b 9e aa af c9 90 95 ec cb 64 2e 3d f6 27 d5 f6 |.........d.=.'..|
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00000040 23 10 d5 6e 50 5f bc 89 fe c7 d7 de c0 09 00 00 |#..nP_..........|
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00000050 0d ff 01 00 01 00 00 0b 00 04 03 00 01 02 16 03 |................|
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00000060 01 02 0e 0b 00 02 0a 00 02 07 00 02 04 30 82 02 |.............0..|
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00000070 00 30 82 01 62 02 09 00 b8 bf 2d 47 a0 d2 eb f4 |.0..b.....-G....|
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00000080 30 09 06 07 2a 86 48 ce 3d 04 01 30 45 31 0b 30 |0...*.H.=..0E1.0|
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00000090 09 06 03 55 04 06 13 02 41 55 31 13 30 11 06 03 |...U....AU1.0...|
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000000a0 55 04 08 13 0a 53 6f 6d 65 2d 53 74 61 74 65 31 |U....Some-State1|
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000000b0 21 30 1f 06 03 55 04 0a 13 18 49 6e 74 65 72 6e |!0...U....Intern|
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000000c0 65 74 20 57 69 64 67 69 74 73 20 50 74 79 20 4c |et Widgits Pty L|
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000000d0 74 64 30 1e 17 0d 31 32 31 31 32 32 31 35 30 36 |td0...1211221506|
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000000e0 33 32 5a 17 0d 32 32 31 31 32 30 31 35 30 36 33 |32Z..22112015063|
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000000f0 32 5a 30 45 31 0b 30 09 06 03 55 04 06 13 02 41 |2Z0E1.0...U....A|
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00000100 55 31 13 30 11 06 03 55 04 08 13 0a 53 6f 6d 65 |U1.0...U....Some|
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00000110 2d 53 74 61 74 65 31 21 30 1f 06 03 55 04 0a 13 |-State1!0...U...|
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00000120 18 49 6e 74 65 72 6e 65 74 20 57 69 64 67 69 74 |.Internet Widgit|
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00000130 73 20 50 74 79 20 4c 74 64 30 81 9b 30 10 06 07 |s Pty Ltd0..0...|
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00000140 2a 86 48 ce 3d 02 01 06 05 2b 81 04 00 23 03 81 |*.H.=....+...#..|
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00000150 86 00 04 00 c4 a1 ed be 98 f9 0b 48 73 36 7e c3 |...........Hs6~.|
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00000160 16 56 11 22 f2 3d 53 c3 3b 4d 21 3d cd 6b 75 e6 |.V.".=S.;M!=.ku.|
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00000170 f6 b0 dc 9a df 26 c1 bc b2 87 f0 72 32 7c b3 64 |.....&.....r2|.d|
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00000180 2f 1c 90 bc ea 68 23 10 7e fe e3 25 c0 48 3a 69 |/....h#.~..%.H:i|
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00000190 e0 28 6d d3 37 00 ef 04 62 dd 0d a0 9c 70 62 83 |.(m.7...b....pb.|
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000001a0 d8 81 d3 64 31 aa 9e 97 31 bd 96 b0 68 c0 9b 23 |...d1...1...h..#|
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000001b0 de 76 64 3f 1a 5c 7f e9 12 0e 58 58 b6 5f 70 dd |.vd?.\....XX._p.|
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000001c0 9b d8 ea d5 d7 f5 d5 cc b9 b6 9f 30 66 5b 66 9a |...........0f[f.|
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000001d0 20 e2 27 e5 bf fe 3b 30 09 06 07 2a 86 48 ce 3d | .'...;0...*.H.=|
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000001e0 04 01 03 81 8c 00 30 81 88 02 42 01 88 a2 4f eb |......0...B...O.|
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000001f0 e2 45 c5 48 7d 1b ac f5 ed 98 9d ae 47 70 c0 5e |.E.H}.......Gp.^|
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00000200 1b b6 2f bd f1 b6 4d b7 61 40 d3 11 a2 ce ee 0b |../...M.a@......|
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00000210 7e 92 7e ff 76 9d c3 3b 7e a5 3f ce fa 10 e2 59 |~.~.v..;~.?....Y|
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00000220 ec 47 2d 7c ac da 4e 97 0e 15 a0 6f d0 02 42 01 |.G-|..N....o..B.|
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00000230 4d fc be 67 13 9c 2d 05 0e bd 3f a3 8c 25 c1 33 |M..g..-...?..%.3|
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00000240 13 83 0d 94 06 bb d4 37 7a f6 ec 7a c9 86 2e dd |.......7z..z....|
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00000250 d7 11 69 7f 85 7c 56 de fb 31 78 2b e4 c7 78 0d |..i..|V..1x+..x.|
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00000260 ae cb be 9e 4e 36 24 31 7b 6a 0f 39 95 12 07 8f |....N6$1{j.9....|
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00000270 2a 16 03 01 00 b5 0c 00 00 b1 03 00 1d 20 4a 7c |*............ J||
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00000280 0a 86 8a 81 f2 60 4a 3c ac d7 7d 3b fc 00 a5 b4 |.....`J<..};....|
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00000290 85 45 45 45 fb 09 53 d7 4a cf 24 9d c8 1a 00 8b |.EEE..S.J.$.....|
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000002a0 30 81 88 02 42 01 7a c9 c0 76 8c 26 98 63 4e a3 |0...B.z..v.&.cN.|
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000002b0 ad 4f 4e a3 d7 c7 d6 4a 69 28 cf d2 7b 0b 36 fb |.ON....Ji(..{.6.|
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000002c0 a3 ae 2f e1 83 ea ea 4a b7 2d ef a8 2d 13 96 e4 |../....J.-..-...|
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000002d0 73 83 66 70 5e 5c d9 5a d1 1c d1 33 18 0b b3 30 |s.fp^\.Z...3...0|
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000002e0 2a 21 d7 78 d8 70 18 02 42 00 c4 ab 80 33 8f f1 |*!.x.p..B....3..|
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000002f0 c2 74 1b 58 2f 59 d4 27 a1 19 42 bf 14 ea a8 a2 |.t.X/Y.'..B.....|
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00000300 cb bf 96 2d 60 7b 84 40 cc 31 f5 c4 e8 51 87 b8 |...-`{.@.1...Q..|
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00000310 7b 47 ec c4 c0 4a 9b 09 59 1e f8 b5 9a e1 45 a4 |{G...J..Y.....E.|
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00000320 a1 9b ee 78 55 f8 f5 fa 1a fb c5 16 03 01 00 04 |...xU...........|
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00000330 0e 00 00 00 |....|
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>>> Flow 3 (client to server)
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00000000 16 03 01 00 25 10 00 00 21 20 2f e5 7d a3 47 cd |....%...! /.}.G.|
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00000010 62 43 15 28 da ac 5f bb 29 07 30 ff f6 84 af c4 |bC.(.._.).0.....|
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00000020 cf c2 ed 90 99 5f 58 cb 3b 74 14 03 01 00 01 01 |....._X.;t......|
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00000030 16 03 01 00 30 b0 5e 4a 8a 07 e3 86 43 05 16 68 |....0.^J....C..h|
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00000040 0e d1 58 a6 05 49 e9 a6 42 89 2c 3f 33 68 8b 26 |..X..I..B.,?3h.&|
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00000050 23 21 3b 62 ab 7a 21 74 d8 49 15 03 b3 1e c6 53 |#!;b.z!t.I.....S|
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00000060 74 1e 1c 4e 0f |t..N.|
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>>> Flow 4 (server to client)
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00000000 14 03 01 00 01 01 16 03 01 00 30 64 4b 3c 1a e3 |..........0dK<..|
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00000010 7d bb bb bb 64 d8 51 c3 eb 92 65 65 58 35 dd 7b |}...d.Q...eeX5.{|
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00000020 d2 fd f0 0c c1 10 71 a5 a8 f7 14 84 69 b4 81 18 |......q.....i...|
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00000030 1e 0d d3 19 b6 23 72 1a a7 43 0e |.....#r..C.|
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>>> Flow 5 (client to server)
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00000000 17 03 01 00 20 c3 e6 70 2c 44 4f 04 0c fb 0b 7f |.... ..p,DO.....|
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00000010 1d 2c ef 4d cc c3 21 ba a2 db 74 76 46 ea 00 40 |.,.M..!...tvF..@|
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00000020 54 2d 4a fe 59 17 03 01 00 20 0c 6b 39 0d b5 f3 |T-J.Y.... .k9...|
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00000030 ed 7e d0 de 01 18 0c 32 4e 59 93 46 d3 c5 4f c0 |.~.....2NY.F..O.|
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00000040 f5 fd f1 d2 79 07 7d 07 b0 24 15 03 01 00 20 1d |....y.}..$.... .|
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00000050 f7 53 a2 e7 3f 88 87 35 01 6e a5 b1 d6 81 37 5b |.S..?..5.n....7[|
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00000060 a7 64 4c 29 f4 71 59 a1 36 c1 1a 24 93 31 7d |.dL).qY.6..$.1}|
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