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, 20 insertions, 20 deletions

diff --git a/src/crypto/tls/testdata/Client-TLSv10-RSA-RC4 b/src/crypto/tls/testdata/Client-TLSv10-RSA-RC4
index 7ecfbde86a..2e10537999 100644
--- a/src/crypto/tls/testdata/Client-TLSv10-RSA-RC4
+++ b/src/crypto/tls/testdata/Client-TLSv10-RSA-RC4
@@ -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 01 00 51 02 00 00  4d 03 01 4c 98 ce a5 80  |....Q...M..L....|
-00000010  84 dc d3 70 de 75 bf 26  5c 15 8b b7 2c 78 30 a7  |...p.u.&\...,x0.|
-00000020  65 1a 0c f7 1a e5 51 91  7c cb ca 20 83 2c 90 3b  |e.....Q.|.. .,.;|
-00000030  cf dd 4e 51 8b 27 98 95  aa d9 1d da 4d 3d e1 18  |..NQ.'......M=..|
-00000040  f5 58 fd 85 c5 ed c9 5f  12 2f 4b b3 00 05 00 00  |.X....._./K.....|
+00000000  16 03 01 00 51 02 00 00  4d 03 01 ba 66 88 b5 b3  |....Q...M...f...|
+00000010  17 e1 9a c1 b6 27 e0 3f  1c 80 73 b6 6c 16 c9 4e  |.....'.?..s.l..N|
+00000020  33 c4 8c 75 26 46 01 1b  31 dc a3 20 e3 57 4f 91  |3..u&F..1.. .WO.|
+00000030  3e 5b 91 cf 75 77 71 66  2f be 84 20 1c 7f 02 dd  |>[..uwqf/.. ....|
+00000040  8b 63 43 6c 4d 1d a4 7a  da 89 35 5a 00 05 00 00  |.cClM..z..5Z....|
 00000050  05 ff 01 00 01 00 16 03  01 02 59 0b 00 02 55 00  |..........Y...U.|
 00000060  02 52 00 02 4f 30 82 02  4b 30 82 01 b4 a0 03 02  |.R..O0..K0......|
 00000070  01 02 02 09 00 e8 f0 9d  3f e2 5b ea a6 30 0d 06  |........?.[..0..|
@@ -64,15 +64,15 @@
 00000060  c5 70 0f 08 83 48 e9 48  ef 6e 50 8b 05 7e e5 84  |.p...H.H.nP..~..|
 00000070  25 fa 55 c7 ae 31 02 27  00 ef 3f 98 86 20 12 89  |%.U..1.'..?.. ..|
 00000080  91 59 28 b4 f7 d7 af d2  69 61 35 14 03 01 00 01  |.Y(.....ia5.....|
-00000090  01 16 03 01 00 24 0e 4d  ff 2c 39 80 ba a5 96 18  |.....$.M.,9.....|
-000000a0  56 15 94 9f e2 1e 7d 13  62 51 d5 e1 05 f8 d8 b3  |V.....}.bQ......|
-000000b0  bd 77 58 38 95 b4 7d 37  66 8a                    |.wX8..}7f.|
+00000090  01 16 03 01 00 24 b6 4b  4c 75 2d d9 8d 1c 85 df  |.....$.KLu-.....|
+000000a0  f1 8d ff 7a 24 6b 02 3f  fa 80 d7 f4 71 76 77 97  |...z$k.?....qvw.|
+000000b0  fd b3 59 d7 91 9f 3a e9  ec 3b                    |..Y...:..;|
 >>> Flow 4 (server to client)
-00000000  14 03 01 00 01 01 16 03  01 00 24 dc 6f da 57 0d  |..........$.o.W.|
-00000010  f8 b8 aa d5 e5 0a 2e 81  ed 2a b7 f8 0e 2a f1 05  |.........*...*..|
-00000020  76 8d 4f b0 0e db 16 c5  d7 c8 5e f9 fb 9e e0     |v.O.......^....|
+00000000  14 03 01 00 01 01 16 03  01 00 24 b6 51 7e 95 65  |..........$.Q~.e|
+00000010  c5 85 08 c3 31 5c ae 2e  e9 9e 6e bb 3d e8 68 c5  |....1\....n.=.h.|
+00000020  26 a0 8c 61 a8 96 09 3c  ec c7 9a 80 ff a2 5d     |&..a...<......]|
 >>> Flow 5 (client to server)
-00000000  17 03 01 00 1a 47 97 4d  e6 59 d4 2f bb 60 56 69  |.....G.M.Y./.`Vi|
-00000010  d8 bc 8d 91 44 7c cd 85  7e c5 18 5f 57 8e 08 15  |....D|..~.._W...|
-00000020  03 01 00 16 f7 79 56 72  e6 77 8d af 94 55 d7 0e  |.....yVr.w...U..|
-00000030  96 c8 3b 35 52 ea f7 e7  b8 d6                    |..;5R.....|
+00000000  17 03 01 00 1a 0b 83 3a  24 a0 b4 7f cc 86 6c 4f  |.......:$.....lO|
+00000010  db 19 1b 09 23 77 a6 91  c6 09 db aa 3c 1a f3 15  |....#w......<...|
+00000020  03 01 00 16 80 dc 14 9b  a7 ff 08 af 25 5e 67 8c  |............%^g.|
+00000030  2d 2a 8e c9 bc 17 5a 29  48 99                    |-*....Z)H.|