crypto/tls: advertise support for SHA-512 signatures in 1.2

This is the equivalent change to 1c105980 but for SHA-512.

SHA-512 certificates are already supported by default since b53bb2ca,
but some servers will refuse connections if the algorithm is not
advertised in the overloaded signatureAndHash extension (see 09b238f1).

This required adding support for SHA-512 signatures on CertificateVerify
and ServerKeyExchange messages, because of said overloading.

Some testdata/Client-TLSv1{0,1} files changed because they send a 1.2
ClientHello even if the server picks a lower version.

Closes #22422

Change-Id: I16282d03a3040260d203711ec21e6b20a0e1e105
Reviewed-on: https://go-review.googlesource.com/74950
Run-TryBot: Filippo Valsorda <hi@filippo.io>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>

1 files changed, 44 insertions, 44 deletions

diff --git a/src/crypto/tls/testdata/Client-TLSv12-ClientCert-ECDSA-RSA b/src/crypto/tls/testdata/Client-TLSv12-ClientCert-ECDSA-RSA
index fb6c940a5f..47c083e494 100644
--- a/src/crypto/tls/testdata/Client-TLSv12-ClientCert-ECDSA-RSA
+++ b/src/crypto/tls/testdata/Client-TLSv12-ClientCert-ECDSA-RSA
@@ -1,20 +1,20 @@
 >>> Flow 1 (client to server)
-00000000  16 03 01 00 91 01 00 00  8d 03 03 00 00 00 00 00  |................|
+00000000  16 03 01 00 95 01 00 00  91 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 38 00 05  |.............8..|
+00000050  c0 12 00 0a 00 05 c0 11  c0 07 01 00 00 3c 00 05  |.............<..|
 00000060  00 05 01 00 00 00 00 00  0a 00 0a 00 08 00 1d 00  |................|
-00000070  17 00 18 00 19 00 0b 00  02 01 00 00 0d 00 0e 00  |................|
-00000080  0c 04 01 04 03 05 01 05  03 02 01 02 03 ff 01 00  |................|
-00000090  01 00 00 12 00 00                                 |......|
+00000070  17 00 18 00 19 00 0b 00  02 01 00 00 0d 00 12 00  |................|
+00000080  10 04 01 04 03 05 01 05  03 06 01 06 03 02 01 02  |................|
+00000090  03 ff 01 00 01 00 00 12  00 00                    |..........|
 >>> Flow 2 (server to client)
-00000000  16 03 03 00 59 02 00 00  55 03 03 2e d2 1c 3f f8  |....Y...U.....?.|
-00000010  3a dc be 78 0b fa 03 00  e0 9a b9 62 34 45 f8 34  |:..x.......b4E.4|
-00000020  54 21 4c c0 76 a6 e1 5a  a1 67 c2 20 1b 98 25 34  |T!L.v..Z.g. ..%4|
-00000030  79 ac 59 b5 39 c8 93 10  a9 ea 9d 25 3d 2c d8 69  |y.Y.9......%=,.i|
-00000040  da d8 33 75 ef 44 4c 76  92 2b 3b b4 c0 2f 00 00  |..3u.DLv.+;../..|
+00000000  16 03 03 00 59 02 00 00  55 03 03 b1 01 db c2 3f  |....Y...U......?|
+00000010  11 0c d0 d2 fd 1d 5f 54  f6 62 4a 47 f9 62 e6 88  |......_T.bJG.b..|
+00000020  72 d7 f5 91 78 73 99 94  72 26 ed 20 51 91 b2 bf  |r...xs..r&. Q...|
+00000030  78 94 0c 1f bb 7b ff a2  b6 8f 57 5d 03 f2 97 b8  |x....{....W]....|
+00000040  c2 20 99 cd 48 f3 14 fc  63 38 97 44 c0 2f 00 00  |. ..H...c8.D./..|
 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..............|
@@ -54,17 +54,17 @@
 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 06 be 1b 0b d8 95 59  |........ ......Y|
-000002d0  b2 13 1c 4a 06 b8 36 3e  4f 98 3f 81 11 3e 7d 21  |...J..6>O.?..>}!|
-000002e0  fa d9 f0 db 1b 41 4a d0  14 04 01 00 80 ca 57 f5  |.....AJ.......W.|
-000002f0  e7 b6 72 7e 3f b0 67 f2  a2 d0 84 d5 7f 7d 83 ff  |..r~?.g......}..|
-00000300  92 73 4f 19 f7 94 b6 d7  95 f4 1b 56 2a fc fa 24  |.sO........V*..$|
-00000310  3e fe 00 65 52 76 c8 30  8a bf ae fe b5 c9 f2 47  |>..eRv.0.......G|
-00000320  0a 71 ad c1 6a 61 8c b5  ab 59 09 12 92 b2 b4 ad  |.q..ja...Y......|
-00000330  cb cc ac c4 30 e9 a4 8a  82 4e 2e d6 1d 16 46 dd  |....0....N....F.|
-00000340  60 37 50 b8 ae 83 c1 e6  1d ba 8c c7 18 f7 5e d7  |`7P...........^.|
-00000350  23 e5 8a 14 ba e4 8e a1  77 8a b6 41 03 61 8a 25  |#.......w..A.a.%|
-00000360  8a 27 f8 cb 2e 4a e0 07  aa bf 03 32 98 16 03 03  |.'...J.....2....|
+000002c0  ac 0c 00 00 a8 03 00 1d  20 22 78 15 4f d2 33 df  |........ "x.O.3.|
+000002d0  3e 82 b7 10 ca 8b 5c d6  f2 84 8f e7 cb cf 3e 2f  |>.....\.......>/|
+000002e0  65 dd 5b 5c 0a 48 f4 f6  1e 04 01 00 80 40 08 09  |e.[\.H.......@..|
+000002f0  e5 bc a2 e3 27 a9 7e 2d  e2 1d 47 7c 8c 95 44 28  |....'.~-..G|..D(|
+00000300  f8 3d 00 5d f7 38 26 31  8f f3 61 27 f6 c0 a0 12  |.=.].8&1..a'....|
+00000310  ed 3b 59 18 ed aa 4c 4a  54 8a 23 0a 13 7a 7d 1c  |.;Y...LJT.#..z}.|
+00000320  26 5e 7a f1 55 d5 68 dc  f9 97 ef 6d 98 0f 87 41  |&^z.U.h....m...A|
+00000330  31 e5 a0 f1 84 19 3a 19  cf b3 f7 9d 34 13 05 ab  |1.....:.....4...|
+00000340  85 2e 6f 4e 8f fd c3 37  63 3e c9 3d 48 87 6a 9b  |..oN...7c>.=H.j.|
+00000350  c1 21 d1 4f 89 7d a1 dc  23 bb cf d8 b1 d9 91 e0  |.!.O.}..#.......|
+00000360  f6 48 f0 20 64 8b f8 f1  86 5c b3 6c 70 16 03 03  |.H. d....\.lp...|
 00000370  00 2a 0d 00 00 26 03 01  02 40 00 1e 06 01 06 02  |.*...&...@......|
 00000380  06 03 05 01 05 02 05 03  04 01 04 02 04 03 03 01  |................|
 00000390  03 02 03 03 02 01 02 02  02 03 00 00 16 03 03 00  |................|
@@ -105,28 +105,28 @@
 00000200  e4 fa cc b1 8a ce e2 23  a0 87 f0 e1 67 51 eb 16  |.......#....gQ..|
 00000210  03 03 00 25 10 00 00 21  20 2f e5 7d a3 47 cd 62  |...%...! /.}.G.b|
 00000220  43 15 28 da ac 5f bb 29  07 30 ff f6 84 af c4 cf  |C.(.._.).0......|
-00000230  c2 ed 90 99 5f 58 cb 3b  74 16 03 03 00 92 0f 00  |...._X.;t.......|
-00000240  00 8e 05 03 00 8a 30 81  87 02 41 19 c6 1e f0 f4  |......0...A.....|
-00000250  ca 79 d7 8c 36 0f 56 9a  9d 07 55 31 fe 63 f1 ec  |.y..6.V...U1.c..|
-00000260  20 80 6f 12 ed 7f bb c0  87 0a 0d 68 81 89 bd 8b  | .o........h....|
-00000270  19 04 5e c0 19 8a d2 0f  6d 71 83 59 ee a7 be be  |..^.....mq.Y....|
-00000280  1d bb 2f 12 53 9b ca 58  0e a6 8d ae 02 42 00 d0  |../.S..X.....B..|
-00000290  4c 69 75 30 86 d1 da 73  1b 8e 3e e1 82 9b f3 58  |Liu0...s..>....X|
-000002a0  8f 6d 0a 10 86 72 5f 90  17 d1 ac 34 8a b5 60 d0  |.m...r_....4..`.|
-000002b0  b8 54 0f 05 7f cd 6a c0  62 b5 04 d9 3a 98 95 b6  |.T....j.b...:...|
-000002c0  b3 00 1d 94 6e 79 35 57  d2 78 a4 7a 4a 45 89 d1  |....ny5W.x.zJE..|
-000002d0  14 03 03 00 01 01 16 03  03 00 28 00 00 00 00 00  |..........(.....|
-000002e0  00 00 00 cf b5 3c cf 0a  b7 6b 51 cb fe 06 4c df  |.....<...kQ...L.|
-000002f0  2c 79 a6 5e a8 75 8b 4c  44 7b ae ff 64 d7 67 dc  |,y.^.u.LD{..d.g.|
-00000300  af ef 54                                          |..T|
+00000230  c2 ed 90 99 5f 58 cb 3b  74 16 03 03 00 93 0f 00  |...._X.;t.......|
+00000240  00 8f 06 03 00 8b 30 81  88 02 42 01 9e be 18 6a  |......0...B....j|
+00000250  b3 8d c4 2f b9 ed db b9  89 cf 2f e5 d6 13 64 68  |.../....../...dh|
+00000260  72 e4 51 01 12 a9 83 08  d7 2e fa cc 64 09 80 79  |r.Q.........d..y|
+00000270  ce 3d 51 a1 e1 f7 3c 5c  2c dd 97 a2 f9 61 c3 7a  |.=Q...<\,....a.z|
+00000280  bc 25 ad c1 04 a1 cf bf  06 f5 e2 b5 15 02 42 00  |.%............B.|
+00000290  bf 72 20 6f 0e 49 f2 07  bd 07 ef f3 e8 9c 1a 61  |.r o.I.........a|
+000002a0  b0 7a 6c b0 14 71 4a aa  76 05 9f d1 ef 5b 41 be  |.zl..qJ.v....[A.|
+000002b0  4c 20 7b 5c 31 86 da e3  3b 54 0f af 79 6b 54 84  |L {\1...;T..ykT.|
+000002c0  72 0b 0a e4 ea 33 48 a2  1a e8 8d dd 16 45 80 d1  |r....3H......E..|
+000002d0  88 14 03 03 00 01 01 16  03 03 00 28 00 00 00 00  |...........(....|
+000002e0  00 00 00 00 4d 58 00 50  6d 12 ea c2 6c f8 1c 51  |....MX.Pm...l..Q|
+000002f0  e8 91 8c 24 dd c2 28 af  c7 c7 ed 28 29 34 62 2c  |...$..(....()4b,|
+00000300  c0 d3 06 7d                                       |...}|
 >>> Flow 4 (server to client)
-00000000  14 03 03 00 01 01 16 03  03 00 28 1c 12 5e 29 ba  |..........(..^).|
-00000010  34 b3 d8 ae f7 2a 83 0d  3e 21 ec 91 c9 fa 7f d1  |4....*..>!......|
-00000020  42 7e 8d d9 e5 ed 4e f9  ae 95 66 27 85 cc 44 2d  |B~....N...f'..D-|
-00000030  cd a3 26                                          |..&|
+00000000  14 03 03 00 01 01 16 03  03 00 28 b3 71 11 c5 31  |..........(.q..1|
+00000010  7b 22 87 23 7b 71 05 ca  95 fc d1 7d 0e fd 68 d3  |{".#{q.....}..h.|
+00000020  7f 08 af 41 16 ff cf 87  a4 5a 6b fb b1 5e 89 e0  |...A.....Zk..^..|
+00000030  8e 0c 88                                          |...|
 >>> Flow 5 (client to server)
-00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 8b 4c 36  |..............L6|
-00000010  6f b8 69 16 0a 40 67 05  5e a8 e6 48 cc ad 7b 29  |o.i..@g.^..H..{)|
-00000020  95 3d 02 15 03 03 00 1a  00 00 00 00 00 00 00 02  |.=..............|
-00000030  58 e3 b5 8e 30 e7 5d 02  cd e5 c0 11 95 3a ef a9  |X...0.]......:..|
-00000040  d7 86                                             |..|
+00000000  17 03 03 00 1e 00 00 00  00 00 00 00 01 3b 83 10  |.............;..|
+00000010  ee 6d c5 a9 6a 9e 61 7f  df 00 c4 03 39 6a b8 4a  |.m..j.a.....9j.J|
+00000020  0f 0c e6 15 03 03 00 1a  00 00 00 00 00 00 00 02  |................|
+00000030  35 b9 7d a7 29 d0 ba e1  5e 4e f1 67 4a 81 12 e7  |5.}.)...^N.gJ...|
+00000040  62 72                                             |br|