Commit Graph

1594 Commits

Author SHA1 Message Date
David Benjamin
11a7b3c2d9 Trim ssl_create_cipher_list slightly.
This business with |ok| is unnecessary. This function is still rather a
mess, but this is a small improvement.

Change-Id: I28fdf1a3687fe6a9d58d81a22cf2f8e7ce5b9b2c
Reviewed-on: https://boringssl-review.googlesource.com/12080
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-11-03 22:19:53 +00:00
David Benjamin
3c51d9b1b9 Test that session renewals interact with lifetimes correctly.
A renewed session does not refresh the timeout. Add tests for this in
preparation for future changes which will revise this logic.

Specifically, TLS 1.3 draft 18's ticket_age_add logic will require some
tweaks in lifetime tracking to record when the ticket was minted. We'll
also likely wish to tweak the parameters for 1.3 to account for (a)
ECDHE-PSK means we're only worried about expiring a short-circuited
authentication rather than forward secrecy and (b) two hours is too
short for a QUIC 0-RTT replacement.

Change-Id: I0f1edd09151e7fcb5aee2742ef8600fbd7080df6
Reviewed-on: https://boringssl-review.googlesource.com/12002
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-03 21:42:00 +00:00
David Benjamin
d2cb1c19e2 Remove cipher_list_by_id.
This is only used in one place where we don't take advantage of it being
sorted anyway.

Change-Id: If6f0d04e975db903e8a93c57c869ea4964c0be37
Reviewed-on: https://boringssl-review.googlesource.com/12062
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-03 16:43:56 +00:00
David Benjamin
9ec3798236 Don't access SSL internals in bssl_shim.
This is the last blocker within BoringSSL itself to opaquifying SSL.
(There are still blockers in consumers, of course.)

BUG=6

Change-Id: Ie3b8dcb78eeaa9aea7311406c5431a8625d60401
Reviewed-on: https://boringssl-review.googlesource.com/12061
Reviewed-by: Adam Langley <agl@google.com>
2016-11-03 16:40:58 +00:00
David Benjamin
abbbee10ad Detach TLS 1.3 cipher configuration from the cipher language.
TLS 1.3 ciphers are now always enabled and come with a hard-coded
preference order.

BUG=110

Change-Id: Idd9cb0d75fb6bf2676ecdee27d88893ff974c4a3
Reviewed-on: https://boringssl-review.googlesource.com/12025
Reviewed-by: Adam Langley <agl@google.com>
2016-11-02 20:47:55 +00:00
Adam Langley
fb73e97292 Test that version is available in the ALPN callback.
HTTP/2 requires TLS 1.2 so the negotiated version should be available
during the ALPN callback.

Change-Id: Iea332808b531a6e5c917de5b8c8917c0aa7428a1
Reviewed-on: https://boringssl-review.googlesource.com/12060
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-02 20:35:08 +00:00
David Benjamin
7bb1d292cb Forbid using exporters during a renego.
They will get very confused about which key they're using. Any caller
using exporters must either (a) leave renegotiation off or (b) be very
aware of when renegotiations happen anyway. (You need to somehow
coordinate with the peer about which epoch's exporter to use.)

Change-Id: I921ad01ac9bdc88f3fd0f8283757ce673a47ec75
Reviewed-on: https://boringssl-review.googlesource.com/12003
Reviewed-by: Adam Langley <agl@google.com>
2016-11-02 18:59:02 +00:00
David Benjamin
4199b0d190 Add tests which modify the shim ticket.
The existing tests for this codepath require us to reconfigure the shim.
This will not work when TLS 1.3 cipher configuration is detached from
the old cipher language. It also doesn't hit codepaths like sessions
containing a TLS 1.3 version but TLS 1.2 cipher.

Instead, add some logic to the runner to rewrite tickets and build tests
out of that.

Change-Id: I57ac5d49c3069497ed9aaf430afc65c631014bf6
Reviewed-on: https://boringssl-review.googlesource.com/12024
Reviewed-by: Adam Langley <agl@google.com>
2016-11-02 18:33:33 +00:00
David Benjamin
7bb88bb686 Fix comment on session version field.
It is not ignored.

Change-Id: I2e607a6d6f7444838fc6fa65cd18e9aa142f139f
Reviewed-on: https://boringssl-review.googlesource.com/12023
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-02 18:06:41 +00:00
David Benjamin
9ef31f01af Negotiate the cipher suite before ALPN.
HTTP/2 places requirements on the cipher suite. So that servers can
decline HTTP/2 when these requirements aren't met, defer ALPN
negotiation.

See also b/32553041.

Change-Id: Idbcf049f9c8bda06a8be52a0154fe76e84607268
Reviewed-on: https://boringssl-review.googlesource.com/11982
Reviewed-by: Adam Langley <agl@google.com>
2016-11-02 18:06:23 +00:00
David Benjamin
b2e2e32c35 Test that client and server enforce session timeouts.
We were only testing one side.

Change-Id: Ieb755e27b235aaf1317bd2c8e5fb374cb0ecfdb3
Reviewed-on: https://boringssl-review.googlesource.com/12001
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-11-02 13:53:40 +00:00
Steven Valdez
af3b8a990c Fix multiple PSK identity parsing.
Change-Id: I3b43e8eb04c111731acc4fc06677fef8da09a646
Reviewed-on: https://boringssl-review.googlesource.com/12020
Reviewed-by: David Benjamin <davidben@google.com>
2016-11-01 17:28:02 +00:00
David Benjamin
70aba26c75 Skip ec_point_format if min_version >= TLS 1.3.
Trim a few more bytes from the future QUIC ClientHello.

Change-Id: If23c5cd078889a9a26cf2231b51b17c2615a38ea
Reviewed-on: https://boringssl-review.googlesource.com/12000
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-01 16:35:36 +00:00
David Benjamin
af3b3d397e Only resolve which cipher list to use once.
Get some of the duplicate logic out of the way.

Change-Id: Iee7c64577e14d1ddfead7e1e32c42c5c9f2a310d
Reviewed-on: https://boringssl-review.googlesource.com/11981
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-01 14:48:17 +00:00
David Benjamin
74df74b98f Remove ssl_any_ec_cipher_suites_enabled check.
TLS 1.3 also uses this extension and doesn't use any EC-based suites.
Always offering the extension is simpler. Also this gets an
SSL_get_ciphers call out of the way (that function is somewhat messy in
semantics).

Change-Id: I2091cb1046e0aea85caa76e73f50e8416e6ed94c
Reviewed-on: https://boringssl-review.googlesource.com/11980
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Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-11-01 14:47:59 +00:00
Brian Smith
f85d323114 TLS: Choose the max version supported by the client, not first.
This change is based on interpreting TLS 1.3 draft 18.

Change-Id: I727961aff2f7318bcbbc8bf6d62b7d6ad3e62da9
Reviewed-on: https://boringssl-review.googlesource.com/11921
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-31 19:39:20 +00:00
David Benjamin
4b0d0e4c5e Validate input iv/mac sizes in SSL_AEAD_CTX_new.
This should never happen, but the SSL_AEAD_CTX_new layer should enforce
key sizes as it's not locally obvious at the call site the caller didn't
get confused. There's still a mess of asserts below, but those should be
fixed by cutting the SSL_CIPHER/SSL_AEAD_CTX boundary differently.

(enc_key_len is validated by virtue of being passed into EVP_AEAD.)

BUG=chromium:659593

Change-Id: I8c91609bcef14ca1509c87aab981bbad6556975f
Reviewed-on: https://boringssl-review.googlesource.com/11940
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-10-28 21:25:35 +00:00
David Benjamin
b917909336 Move a few more types out of ssl.h.
These were forward-declared for SSL3_STATE but with that hidden, it's no
longer necessary.

Change-Id: I8c548822f56f6172b4033b2fa89c038adcec2caa
Reviewed-on: https://boringssl-review.googlesource.com/11860
Reviewed-by: Adam Langley <agl@google.com>
2016-10-28 19:46:13 +00:00
David Benjamin
8b176716e9 Test that SNI is accessible from the SNI callback.
Later work is going to cause some turbulence here.

Change-Id: Iba98bcf56e81492ec0dca54a381b38d1c115247a
Reviewed-on: https://boringssl-review.googlesource.com/11843
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2016-10-28 19:22:40 +00:00
David Benjamin
305e6fb7f7 Revise ssl_cipher_get_evp_aead.
This is still rather a mess with how it's tied to SSL_AEAD_CTX_new
(probably these should get encapsulated in an SSL_AEAD struct), but this
avoids running the TLS 1.3 nonce logic on fake AEADs. This is impossible
based on cipher version checks, but we shouldn't need to rely on it.

It's also a little tidier since out_mac_secret_len is purely a function
of algorithm_mac.

BUG=chromium:659593

Change-Id: Icc24d43c54a582bcd189d55958e2d232ca2db4dd
Reviewed-on: https://boringssl-review.googlesource.com/11842
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-28 16:43:31 +00:00
David Benjamin
1b22f85a56 Reject tickets from the future.
This shouldn't happen, but it is good to check to avoid the potential
underflow in ssl_session_is_time_valid.

This required tweaking the mock clock in bssl_shim to stop going back in
time.

Change-Id: Id3ab8755139e989190d0b53d4bf90fe1ac203022
Reviewed-on: https://boringssl-review.googlesource.com/11841
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-27 22:32:19 +00:00
Steven Valdez
b6b6ff3bef Verifying resumption cipher validity with current configuration.
BUG=chromium:659593

Change-Id: I73a4751609b85df7cd40f0f60dc3f3046a490940
Reviewed-on: https://boringssl-review.googlesource.com/11861
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-27 17:43:59 +00:00
David Benjamin
3a322f5e48 Revise signing preferences.
We currently preferentially sign the largest hash available and
advertise such a preference for signatures we accept. We're just as
happy with SHA-256 and, all else equal, a smaller hash would be epsilon
more performant. We also currently claim, in TLS 1.3, we prefer P-384
over P-256 which is off.

Instead order SHA-256 first, next the larger SHA-2 hashes, and leave
SHA-1 at the bottom. Within a hash, order ECDSA > RSA-PSS > RSA-PKCS1.

This has the added consequence that we will preferentially pair P-256
with SHA-256 in signatures we generate instead of larger hashes that get
truncated anyway.

Change-Id: If4aee068ba6829e8c0ef7948f56e67a5213e4c50
Reviewed-on: https://boringssl-review.googlesource.com/11821
Reviewed-by: Adam Langley <agl@google.com>
2016-10-26 17:20:19 +00:00
David Benjamin
c6722cd6e0 Check SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER before touching wpend_buf.
SSL_write has messy semantics around retries. As a sanity-check, it does
pointer and length checks and requires the original and retry SSL_write
pass the same buffer pointer.

In some cases, buffer addresses may change but still include the
original data as a prefix on the retry. Callers then set
SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER to skip the pointer check. But, in
that case, the pointer may have been freed so doing a comparison is
undefined behavior.

Short-circuiting the pointer equality check avoids this problem.

Change-Id: I76cb8f7d45533504cd95287bc53897ca636af51d
Reviewed-on: https://boringssl-review.googlesource.com/11760
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Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-10-25 20:15:45 +00:00
David Benjamin
079b394c49 Always enable GREASE for TLS 1.3 NewSessionTicket.
On the client we'll leave it off by default until the change has made it
through Chrome's release process. For TLS 1.3, there is no existing
breakage risk, so always do it. This saves us the trouble of having to
manually turn it on in servers.

See [0] for a data point of someone getting it wrong.

[0] https://hg.mozilla.org/projects/nss/rev/9dbc21b1c3cc

Change-Id: I74daad9e7efd2040e9d66d72d558b31f145e6c4c
Reviewed-on: https://boringssl-review.googlesource.com/11680
Reviewed-by: Adam Langley <agl@google.com>
2016-10-24 20:04:24 +00:00
David Benjamin
7784c4c4dd Fix fuzzer mode suppressions.
Change-Id: I18cee423675d6a686f83b4ef4b38696cb618392c
Reviewed-on: https://boringssl-review.googlesource.com/11683
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Nick Harper <nharper@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-20 21:49:13 +00:00
Nick Harper
9559401473 Use SHA256_CTX instead of EVP_MD_CTX when computing Channel ID.
Change-Id: I0bd7fdd276e7461ef08b8055bf3d0387f756739f
Reviewed-on: https://boringssl-review.googlesource.com/11682
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-20 21:22:39 +00:00
Nick Harper
c984611d2d Fix bogo implementation of Channel ID for TLS < 1.2.
BUG=103

Change-Id: I9a49fbaf66af73978ce264d27926f483e1e44766
Reviewed-on: https://boringssl-review.googlesource.com/11620
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-20 20:57:48 +00:00
Nick Harper
60a85cb5e4 Implement ChannelID for TLS 1.3.
Channel ID for TLS 1.3 uses the same digest construction as
CertificateVerify. This message is signed with the Channel ID key and
put in the same handshake message (with the same format) as in TLS 1.2.

BUG=103

Change-Id: Ia5b2dffe5a39c39db0cecb0aa6bdc328e53accc2
Reviewed-on: https://boringssl-review.googlesource.com/11420
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-20 20:57:10 +00:00
David Benjamin
3ef7697ed3 Don't accept {sha1, ecdsa} and {sha512, ecdsa}.
{sha1, ecdsa} is virtually nonexistent. {sha512, ecdsa} is pointless
when we only accept P-256 and P-384. See Chromium Intent thread here:

https://groups.google.com/a/chromium.org/d/msg/blink-dev/kWwLfeIQIBM/9chGZ40TCQAJ

This tweaks the signature algorithm logic slightly so that sign and
verify preferences are separate.

BUG=chromium:655318

Change-Id: I1097332600dcaa38e62e4dffa0194fb734c6df3f
Reviewed-on: https://boringssl-review.googlesource.com/11621
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-10-18 19:07:36 +00:00
Daniel Bathgate
89917a5c60 Fix memory leak in set_signing_algorithm_prefs.
If SSL_CTX_set_signing_algorithm_prefs or
SSL_set_signing_algorithm_prefs are
called multiple times for the same cert, the
previous cert->sigalgs will leak.

Free the existing sigalgs before setting a new one.

Change-Id: I73cdb366a8f47d8cc0baae986fd0aa80b60300e2
Reviewed-on: https://boringssl-review.googlesource.com/11640
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-18 14:13:53 +00:00
David Benjamin
e228bd299d Hide SSL3_STATE.
BUG=6

Change-Id: I463f5daa0bbf0f65269c52da25fa235ee2aa6ffb
Reviewed-on: https://boringssl-review.googlesource.com/11240
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-18 01:13:13 +00:00
Steven Valdez
2c62fe9c58 Run TestSequenceNumber at all versions.
There were some logic errors that were revealed by testing at TLS 1.3.
Also explicitly test GetClientHelloLen at TLS 1.2 (rather than relying
on the default) since the TLS 1.3 ClientHello is too large.

Change-Id: I907cb6ac04b40f845e99593bad06739132ca56b2
Reviewed-on: https://boringssl-review.googlesource.com/11605
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-18 00:53:14 +00:00
David Benjamin
ab6306bcb6 Fix fuzzer mode suppressions.
Some new tests needed to be suppressed.

Change-Id: I4474d752c338a18440efb213e0795ae81ad754fb
Reviewed-on: https://boringssl-review.googlesource.com/11583
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-13 19:12:44 +00:00
David Benjamin
a128a55e0b Update the TLS 1.3 draft version to draft 16.
This should land in the same group of revisions as the two parent
commits.

Change-Id: Id9d769b890b3308ea70b705e7241c73cb1930ede
Reviewed-on: https://boringssl-review.googlesource.com/11581
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-13 19:12:36 +00:00
David Benjamin
3baa6e153b Implement draft 16 HelloRetryRequest and cookie.
We'll never send cookies, but we'll echo them on request. Implement it
in runner as well and test.

BUG=98

Change-Id: Idd3799f1eaccd52ac42f5e2e5ae07c209318c270
Reviewed-on: https://boringssl-review.googlesource.com/11565
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-13 19:12:30 +00:00
Steven Valdez
c4aa727e73 Updating Key Schedule and KeyUpdate to draft 16.
This doesn't currently honor the required KeyUpdate response. That will
be done in a follow-up.

BUG=74

Change-Id: I750fc41278736cb24230303815e839c6f6967b6a
Reviewed-on: https://boringssl-review.googlesource.com/11412
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-13 19:12:23 +00:00
David Benjamin
490469f850 Test unknown TLS 1.3 ServerHello extensions.
These too must be rejected. Test both unknown extensions and extensions
in the wrong context.

Change-Id: I54d5a5060f9efc26e5e4d23a0bde3c0d4d302d09
Reviewed-on: https://boringssl-review.googlesource.com/11501
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-10-11 19:12:13 +00:00
David Benjamin
4fec04b484 Place comment(lib, *) pragmas under OPENSSL_MSVC_PRAGMA.
This clears the last of Android's build warnings from BoringSSL. These
pragmas aren't actually no-ops, but it just means that MinGW consumers
(i.e. just Android) need to explicitly list the dependency (which they
do).

There may be something to be said for removing those and having everyone
list dependencies, but I don't really want to chase down every
consumer's build files. Probably not worth the trouble.

Change-Id: I8fcff954a6d5de9471f456db15c54a1b17cb937a
Reviewed-on: https://boringssl-review.googlesource.com/11573
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-10-10 19:25:55 +00:00
David Benjamin
53a2dfcb1f Remove incorrect ciphers check.
This was a remnant of the old cipher suite setup.

Change-Id: Ibc79b81200a52d45fbd69b9c04060c38ad4707f5
Reviewed-on: https://boringssl-review.googlesource.com/11564
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-10 15:53:23 +00:00
David Benjamin
1db9e1bc7a Add the certificate_required alert.
This is part of TLS 1.3 draft 16 but isn't much of a wire format change,
so go ahead and add it now. When rolling into Chromium, we'll want to
add an entry to the error mapping.

Change-Id: I8fd7f461dca83b725a31ae19ef96c890d603ce53
Reviewed-on: https://boringssl-review.googlesource.com/11563
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-10 15:48:06 +00:00
David Benjamin
5d9ba81b6c Enable more TLS 1.3 resumption tests.
We missed these two.

Change-Id: I2bc45f6c88e882c36abaa12a02931d1af0b1f29f
Reviewed-on: https://boringssl-review.googlesource.com/11562
Reviewed-by: David Benjamin <davidben@google.com>
2016-10-10 15:47:31 +00:00
David Benjamin
52bf690ba4 Saved Finished messages are twelve bytes.
We only save them at TLS 1.0 through 1.2. This saves 104 bytes of
per-connection memory.

Change-Id: If397bdc10e40f0194cba01024e0e9857d6b812f0
Reviewed-on: https://boringssl-review.googlesource.com/11571
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:52:18 +00:00
David Benjamin
34941c0cab Forbid renego in SSL 3.0.
We need to retain a pair of Finished messages for renegotiation_info.
SSL 3.0's is actually larger than TLS 1.2's (always 12 bytes). Take
renegotiation out in preparation for trimming them to size.

Change-Id: I2e238c48aaf9be07dd696bc2a6af75e9b0ead299
Reviewed-on: https://boringssl-review.googlesource.com/11570
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:44:54 +00:00
David Benjamin
49ddf41557 Remove redundant copies of the Finished messages.
We only need one copy, not two. This trims 130 bytes of per-connection
memory.

Change-Id: I334aa7b1f8608e72426986bfa68534d416f3bda9
Reviewed-on: https://boringssl-review.googlesource.com/11569
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:43:03 +00:00
David Benjamin
ced00b4258 Turn off Finished-based APIs at TLS 1.3 and SSL 3.0.
tls-unique isn't defined at TLS 1.3 yet. (Given that it was too small in
1.2, they may just define a new one entirely?) SSL_get_(peer_)finished
doesn't work at 1.3 and is only used in lieu of computing tls-unique,
also undefined at SSL 3.0.

This is in preparation for trimming the copies of the Finished messages
we retain.

Change-Id: Iace99f2baea92c511c4041c592300dfbbe7226e2
Reviewed-on: https://boringssl-review.googlesource.com/11568
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:39:25 +00:00
David Benjamin
a4c8ff0190 Move TLS 1.2 key exchange fields to SSL_HANDSHAKE.
SSL_HANDSHAKE is dropped after the handshake, so I've removed the logic
around smaller sizes. It's much simpler when we can use CBS_stow and
CBB_finish without extra bounds-checking.

Change-Id: Idafaa5d69e171aed9a8759f3d44e52cb01c40f39
Reviewed-on: https://boringssl-review.googlesource.com/11567
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:30:32 +00:00
David Benjamin
43612b6bc7 Move peer_supported_group_list to SSL_HANDSHAKE.
Now not only the pointers but also the list itself is released after the
handshake completes.

Change-Id: I8b568147d2d4949b3b0efe58a93905f77a5a4481
Reviewed-on: https://boringssl-review.googlesource.com/11528
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:20:33 +00:00
David Benjamin
f04976ba25 Remove the get_peer_groups parameter to tls1_get_grouplist.
It's weird and makes things more confusing. Only use it for local
preferences as there is a default. Peer preferences can be read
directly. Also simplify the logic for requiring a non-empty peer group
list for ECDHE. The normal logic will give us this for free.

Change-Id: I1916155fe246be988f20cbf0b1728380ec90ff3d
Reviewed-on: https://boringssl-review.googlesource.com/11527
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:19:24 +00:00
David Benjamin
9d0b4bcb92 Trim tls1_check_group_id.
This function is now only ever called as a client, so there are no peer
preferences to check against. It is also now only called on peer curves,
so it only needs to be compared against local preferences.

Change-Id: I87f5b10cf4fe5fef9a9d60aff36010634192e90c
Reviewed-on: https://boringssl-review.googlesource.com/11526
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:15:49 +00:00