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utls/testdata/Client-TLSv12-RenegotiationRejected
Filippo Valsorda 89df05a1c4 crypto/tls: make cipher suite preference ordering automatic 
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>
2021-05-08 05:15:48 +00:00

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Raw Blame History

>>> Flow 1 (client to server)
00000000 16 03 01 00 fa 01 00 00 f6 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 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 a9 |.............2..|
00000050 cc a8 c0 2b c0 2f c0 2c c0 30 c0 09 c0 13 c0 0a |...+./.,.0......|
00000060 c0 14 00 9c 00 9d 00 2f 00 35 c0 12 00 0a c0 23 |......./.5.....#|
00000070 c0 27 00 3c c0 07 c0 11 00 05 13 03 13 01 13 02 |.'.<............|
00000080 01 00 00 7b 00 05 00 05 01 00 00 00 00 00 0a 00 |...{............|
00000090 0a 00 08 00 1d 00 17 00 18 00 19 00 0b 00 02 01 |................|
000000a0 00 00 0d 00 1a 00 18 08 04 04 03 08 07 08 05 08 |................|
000000b0 06 04 01 05 01 06 01 05 03 06 03 02 01 02 03 ff |................|
000000c0 01 00 01 00 00 12 00 00 00 2b 00 09 08 03 04 03 |.........+......|
000000d0 03 03 02 03 01 00 33 00 26 00 24 00 1d 00 20 2f |......3.&.$... /|
000000e0 e5 7d a3 47 cd 62 43 15 28 da ac 5f bb 29 07 30 |.}.G.bC.(.._.).0|
000000f0 ff f6 84 af c4 cf c2 ed 90 99 5f 58 cb 3b 74 |.........._X.;t|
>>> Flow 2 (server to client)
00000000 16 03 03 00 59 02 00 00 55 03 03 a3 55 d2 e2 bd |....Y...U...U...|
00000010 94 8f 04 51 26 1c a6 61 b1 ed 05 e2 39 44 33 05 |...Q&..a....9D3.|
00000020 79 14 b7 1f 89 1e bb ba 53 0d 12 20 09 29 6d 26 |y.......S.. .)m&|
00000030 04 70 4a 5d 01 90 f2 c6 28 df 11 6a 64 23 ec 9e |.pJ]....(..jd#..|
00000040 9f 2b 15 33 dc 88 26 35 3a b0 86 92 cc a8 00 00 |.+.3..&5:.......|
00000050 0d ff 01 00 01 00 00 0b 00 04 03 00 01 02 16 03 |................|
00000060 03 02 59 0b 00 02 55 00 02 52 00 02 4f 30 82 02 |..Y...U..R..O0..|
00000070 4b 30 82 01 b4 a0 03 02 01 02 02 09 00 e8 f0 9d |K0..............|
00000080 3f e2 5b ea a6 30 0d 06 09 2a 86 48 86 f7 0d 01 |?.[..0...*.H....|
00000090 01 0b 05 00 30 1f 31 0b 30 09 06 03 55 04 0a 13 |....0.1.0...U...|
000000a0 02 47 6f 31 10 30 0e 06 03 55 04 03 13 07 47 6f |.Go1.0...U....Go|
000000b0 20 52 6f 6f 74 30 1e 17 0d 31 36 30 31 30 31 30 | Root0...1601010|
000000c0 30 30 30 30 30 5a 17 0d 32 35 30 31 30 31 30 30 |00000Z..25010100|
000000d0 30 30 30 30 5a 30 1a 31 0b 30 09 06 03 55 04 0a |0000Z0.1.0...U..|
000000e0 13 02 47 6f 31 0b 30 09 06 03 55 04 03 13 02 47 |..Go1.0...U....G|
000000f0 6f 30 81 9f 30 0d 06 09 2a 86 48 86 f7 0d 01 01 |o0..0...*.H.....|
00000100 01 05 00 03 81 8d 00 30 81 89 02 81 81 00 db 46 |.......0.......F|
00000110 7d 93 2e 12 27 06 48 bc 06 28 21 ab 7e c4 b6 a2 |}...'.H..(!.~...|
00000120 5d fe 1e 52 45 88 7a 36 47 a5 08 0d 92 42 5b c2 |]..RE.z6G....B[.|
00000130 81 c0 be 97 79 98 40 fb 4f 6d 14 fd 2b 13 8b c2 |....y.@.Om..+...|
00000140 a5 2e 67 d8 d4 09 9e d6 22 38 b7 4a 0b 74 73 2b |..g....."8.J.ts+|
00000150 c2 34 f1 d1 93 e5 96 d9 74 7b f3 58 9f 6c 61 3c |.4......t{.X.la<|
00000160 c0 b0 41 d4 d9 2b 2b 24 23 77 5b 1c 3b bd 75 5d |..A..++$#w[.;.u]|
00000170 ce 20 54 cf a1 63 87 1d 1e 24 c4 f3 1d 1a 50 8b |. T..c...$....P.|
00000180 aa b6 14 43 ed 97 a7 75 62 f4 14 c8 52 d7 02 03 |...C...ub...R...|
00000190 01 00 01 a3 81 93 30 81 90 30 0e 06 03 55 1d 0f |......0..0...U..|
000001a0 01 01 ff 04 04 03 02 05 a0 30 1d 06 03 55 1d 25 |.........0...U.%|
000001b0 04 16 30 14 06 08 2b 06 01 05 05 07 03 01 06 08 |..0...+.........|
000001c0 2b 06 01 05 05 07 03 02 30 0c 06 03 55 1d 13 01 |+.......0...U...|
000001d0 01 ff 04 02 30 00 30 19 06 03 55 1d 0e 04 12 04 |....0.0...U.....|
000001e0 10 9f 91 16 1f 43 43 3e 49 a6 de 6d b6 80 d7 9f |.....CC>I..m....|
000001f0 60 30 1b 06 03 55 1d 23 04 14 30 12 80 10 48 13 |`0...U.#..0...H.|
00000200 49 4d 13 7e 16 31 bb a3 01 d5 ac ab 6e 7b 30 19 |IM.~.1......n{0.|
00000210 06 03 55 1d 11 04 12 30 10 82 0e 65 78 61 6d 70 |..U....0...examp|
00000220 6c 65 2e 67 6f 6c 61 6e 67 30 0d 06 09 2a 86 48 |le.golang0...*.H|
00000230 86 f7 0d 01 01 0b 05 00 03 81 81 00 9d 30 cc 40 |.............0.@|
00000240 2b 5b 50 a0 61 cb ba e5 53 58 e1 ed 83 28 a9 58 |+[P.a...SX...(.X|
00000250 1a a9 38 a4 95 a1 ac 31 5a 1a 84 66 3d 43 d3 2d |..8....1Z..f=C.-|
00000260 d9 0b f2 97 df d3 20 64 38 92 24 3a 00 bc cf 9c |...... d8.$:....|
00000270 7d b7 40 20 01 5f aa d3 16 61 09 a2 76 fd 13 c3 |}.@ ._...a..v...|
00000280 cc e1 0c 5c ee b1 87 82 f1 6c 04 ed 73 bb b3 43 |...\.....l..s..C|
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 43 6b 44 5b 79 c9 38 |........ CkD[y.8|
000002d0 dc e4 ab fa 88 fa e6 06 89 b1 4e ff ab 8d d6 f7 |..........N.....|
000002e0 21 b4 ff 9d a0 c8 54 cc 63 08 04 00 80 cd f4 d6 |!.....T.c.......|
000002f0 c8 ad 03 e7 f0 e8 f4 c9 f0 e6 28 db cd 3b 7c bf |..........(..;|.|
00000300 05 af 3d fe c1 f9 f1 7a ec 41 bf 1f a8 95 6d ee |..=....z.A....m.|
00000310 e6 92 cb c0 ff fd c1 ed 86 b0 59 45 3e 2d 1d 66 |..........YE>-.f|
00000320 56 d1 9f e2 b7 79 ac aa 81 6d b0 42 36 96 80 4d |V....y...m.B6..M|
00000330 ca 36 29 1b 65 03 73 3f 85 ec 59 cb b4 a5 a0 c0 |.6).e.s?..Y.....|
00000340 0c 16 ad e2 6b 35 3c ab 1e da 69 19 7d a2 63 a7 |....k5<...i.}.c.|
00000350 69 2a d2 3f 12 17 bf 4c ed 8a f7 75 fe ce d4 2b |i*.?...L...u...+|
00000360 4d 35 bf 65 d6 9e 01 69 a8 0a 73 26 34 16 03 03 |M5.e...i..s&4...|
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 b8 d8 22 20 8d 69 23 05 34 eb 69 |.... .." .i#.4.i|
00000040 92 a0 a9 6c cd 94 3b 72 49 91 72 8e 65 79 ca 62 |...l..;rI.r.ey.b|
00000050 14 cf da 2e b6 |.....|
>>> Flow 4 (server to client)
00000000 14 03 03 00 01 01 16 03 03 00 20 31 25 d4 c7 92 |.......... 1%...|
00000010 16 0b 92 2d a2 20 8b b2 c7 96 a6 b7 b6 b3 82 3a |...-. .........:|
00000020 4d a1 a8 96 29 fb 99 e9 ea 04 6c |M...).....l|
>>> Flow 5 (client to server)
00000000 17 03 03 00 16 8b 92 f3 f8 99 bf a3 7c c4 03 d8 |............|...|
00000010 4d e7 1b ad 50 e1 99 17 33 68 e2 |M...P...3h.|
>>> Flow 6 (server to client)
00000000 16 03 03 00 14 91 99 15 68 ae 92 52 bd 13 75 45 |........h..R..uE|
00000010 6d a9 f0 2d ee f5 c3 9b e7 |m..-.....|
>>> Flow 7 (client to server)
00000000 15 03 03 00 12 be 8b 4b a6 a7 7a 62 45 32 ff db |.......K..zbE2..|
00000010 07 ad a0 1b 46 9d c9 15 03 03 00 12 16 da d4 86 |....F...........|
00000020 4f c8 26 5a d0 34 82 fe 47 34 ae 31 db a7 |O.&Z.4..G4.1..|
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