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>
88 lines
6.5 KiB
Text
88 lines
6.5 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 03 00 59 02 00 00 55 03 03 bb 8a 66 ee 44 |....Y...U....f.D|
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00000010 42 dc 59 c7 a7 7b a8 57 8e 63 21 f0 4e 31 f4 5c |B.Y..{.W.c!.N1.\|
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00000020 1d d3 42 e5 de eb 8c 78 3a 01 01 20 9b 89 05 d6 |..B....x:.. ....|
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00000030 d2 07 38 8b 4c 5f 6d 62 9f 43 a0 cd d3 40 0f 77 |..8.L_mb.C...@.w|
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00000040 17 ff 43 4a 5c b3 8c 83 b7 4b c7 e7 c0 2c 00 00 |..CJ\....K...,..|
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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 03 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 03 00 b7 0c 00 00 b3 03 00 1d 20 fd 71 |*............ .q|
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00000280 c1 3a 6a a3 69 6a 34 f3 02 c5 1d e5 db 63 f4 eb |.:j.ij4......c..|
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00000290 97 4c 70 bc b3 4e 9d 2c 2f b2 b9 9d ac 3f 04 03 |.Lp..N.,/....?..|
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000002a0 00 8b 30 81 88 02 42 01 bd 9d ad 24 37 b9 60 55 |..0...B....$7.`U|
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000002b0 e4 cc bc 49 c3 88 3b ed ac e4 42 8e fa 81 01 d9 |...I..;...B.....|
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000002c0 39 4c f0 1c 7d 39 a2 81 8a e1 17 0e 8d 37 76 96 |9L..}9.......7v.|
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000002d0 37 13 3a 1e 2e fd 0d 0a 3c 90 9d 43 3d 06 c0 b1 |7.:.....<..C=...|
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000002e0 4e 07 3e c3 9f f2 43 40 0b 02 42 01 d6 d0 20 ad |N.>...C@..B... .|
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000002f0 48 09 c0 9b 5d c8 84 46 3b 98 37 9b 5a 91 4a 07 |H...]..F;.7.Z.J.|
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00000300 79 68 71 92 76 dc 70 0f 5c 44 7e 81 c3 c6 3f 19 |yhq.v.p.\D~...?.|
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00000310 f4 0f 6a 0b aa cc bb 65 e7 34 b5 e9 67 2d 32 98 |..j....e.4..g-2.|
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00000320 1c f6 76 4c 96 73 df 21 d6 e1 ea 34 86 16 03 03 |..vL.s.!...4....|
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00000330 00 04 0e 00 00 00 |......|
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>>> Flow 3 (client to server)
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00000000 16 03 03 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 03 00 01 01 |....._X.;t......|
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00000030 16 03 03 00 28 00 00 00 00 00 00 00 00 27 fd 98 |....(........'..|
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00000040 47 79 56 f9 e8 0e fd 18 c2 8f 2d 32 51 f7 19 b5 |GyV.......-2Q...|
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00000050 ab 2f 81 ed b6 cf 6f b5 65 81 81 f1 44 |./....o.e...D|
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>>> Flow 4 (server to client)
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00000000 14 03 03 00 01 01 16 03 03 00 28 a9 b7 63 61 57 |..........(..caW|
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00000010 54 57 f0 b2 60 58 e3 dc 6e e1 40 3e 67 b4 99 8f |TW..`X..n.@>g...|
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00000020 e9 6b 11 f1 1a 54 bd c1 d3 b9 5b 01 12 27 a4 0b |.k...T....[..'..|
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00000030 e9 ec 01 |...|
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>>> Flow 5 (client to server)
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00000000 17 03 03 00 1e 00 00 00 00 00 00 00 01 e0 8a 6e |...............n|
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00000010 62 5d e3 db 99 10 d2 53 b6 21 2e 79 31 cf 71 1d |b].....S.!.y1.q.|
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00000020 34 71 2a 15 03 03 00 1a 00 00 00 00 00 00 00 02 |4q*.............|
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00000030 e7 4a 8d b9 2f 1b b1 70 72 da 7f d8 fa 4f 9f d6 |.J../..pr....O..|
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00000040 ca f3 |..|
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