Commit Graph

1718 Commits

Author SHA1 Message Date
David Benjamin
dfb4138197 Update suppressions for fuzzer mode.
Change-Id: I07c4b67206440d169b314f24e1b3c1c697dda24f
Reviewed-on: https://boringssl-review.googlesource.com/12204
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>
2016-11-15 07:00:35 +00:00
David Benjamin
ffb1107c91 Add a helper function for parsing extensions blocks.
TLS 1.3 adds a number of places with extensions blocks that don't easily
fit into our ClientHello/EncryptedExtensions callbacks. Between
HelloRetryRequest, ServerHello, draft 18 going nuts with Certificate,
and NewSessionTicket when we do 0-RTT, this passes the "abstract things
that are repeated three times" sniff test.

For now, it rejects unknown extensions, but it will probably grow an
allow_unknown parameter for NewSessionTicket.

This involves disabling some MSVC warnings, but they're invalid as of
C99 which we otherwise require. See
https://connect.microsoft.com/VisualStudio/feedback/details/1230248/remove-c99-related-warnings-or-make-them-off-by-default

Change-Id: Iea8bf8ab216270c081dd63e79aaad9ec73b3b550
Reviewed-on: https://boringssl-review.googlesource.com/12233
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>
2016-11-15 06:58:52 +00:00
David Benjamin
32b47a5e35 Allow PSK binder mismatches in fuzzer mode.
BUG=112

Change-Id: I88ef17e32e33b091ff1e27b7950f88e1d48f9278
Reviewed-on: https://boringssl-review.googlesource.com/12239
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>
2016-11-15 06:57:54 +00:00
Steven Valdez
a833c357ed Update to TLS 1.3 draft 18.
This is the squash of the following CLs:
https://boringssl-review.googlesource.com/c/12021/9
https://boringssl-review.googlesource.com/c/12022/9
https://boringssl-review.googlesource.com/c/12107/19
https://boringssl-review.googlesource.com/c/12141/22
https://boringssl-review.googlesource.com/c/12181/33

The Go portions were written by Nick Harper

BUG=112

Change-Id: I375a1fcead493ec3e0282e231ccc8d7c4dde5063
Reviewed-on: https://boringssl-review.googlesource.com/12300
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-11-15 06:57:21 +00:00
David Benjamin
ced9479fd1 Replace hash_current_message with get_current_message.
For TLS 1.3 draft 18, it will be useful to get at the full current
message and not just the body. Add a hook to expose it and replace
hash_current_message with a wrapper over it.

BUG=112

Change-Id: Ib9e00dd1b78e8b72e12409d85c80e96c5b411a8b
Reviewed-on: https://boringssl-review.googlesource.com/12238
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>
2016-11-15 06:52:10 +00:00
David Benjamin
2c51645c59 Add runner tests which send intermediate certificates.
Certificate chain with intermediate taken from Chromium's tests. Though
it doesn't really matter because the runner tests don't verify
certificates.

BUG=70

Change-Id: I46fd1d4be0f371b5bfd43370b97d2c8053cfad60
Reviewed-on: https://boringssl-review.googlesource.com/12261
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Steven Valdez <svaldez@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-11-15 01:36:37 +00:00
David Benjamin
e6f2221423 Enforce record-layer version numbers.
We used to enforce after the version was set, but stopped enforcing with
TLS 1.3. NSS enforces the value for encrypted records, which makes sense
and avoids the problems gating it on have_version. Add tests for this.

Change-Id: I7fb5f94ab4a22e8e3b1c14205aa934952d671727
Reviewed-on: https://boringssl-review.googlesource.com/12143
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-11-13 05:28:35 +00:00
David Benjamin
eab773a8aa Add missing PSK identity comment.
Change-Id: I1ca9f252afeea6cdcaa6d75e842eab019c82a7e4
Reviewed-on: https://boringssl-review.googlesource.com/12184
Reviewed-by: David Benjamin <davidben@google.com>
2016-11-13 05:22:38 +00:00
David Benjamin
78476f6065 Move tlsext_ticket_expected to SSL_HANDSHAKE.
It's all of one bit, but having it on the SSL object means we need
manually to reset it on renego.

Change-Id: I989dacd430fe0fa63d76451b95f036a942aefcfe
Reviewed-on: https://boringssl-review.googlesource.com/12229
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>
2016-11-12 07:32:42 +00:00
David Benjamin
ba1660b282 Tidy up finish_message logic.
dtls1_finish_message should NULL *out_msg before calling OPENSSL_free,
rather than asking ssl3_complete_message to do it. ssl3_finish_message
has no need to call it at all.

Change-Id: I22054217073690ab391cd19bf9993b1ceada41fd
Reviewed-on: https://boringssl-review.googlesource.com/12231
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>
2016-11-12 05:57:08 +00:00
Steven Valdez
5eead165fc Splitting finish_message to finish_message/queue_message.
This is to allow for PSK binders to be munged into the ClientHello as part of
draft 18.

BUG=112

Change-Id: Ic4fd3b70fa45669389b6aaf55e61d5839f296748
Reviewed-on: https://boringssl-review.googlesource.com/12228
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>
2016-11-12 05:01:20 +00:00
David Benjamin
231a475355 Test bad records at all cipher suites.
We have AEAD-level coverage for these, but we should also test this in
the TLS stack, and at maximum size per upstream's CVE-2016-7054.

Change-Id: I1f4ad0356e793d6a3eefdc2d55a9c7e05ea08261
Reviewed-on: https://boringssl-review.googlesource.com/12187
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-10 16:19:51 +00:00
Adam Langley
c5ac2b6c78 Rename X.509 members in |SSL_SESSION| and |CERT|.
This change renames |peer| to |x509_peer| and |cert_chain| to
|x509_chain| in |SSL_SESSION|. It also renames |x509| to |x509_leaf| and
|chain| to |x509_chain| in |CERT|. (All with an eye to maybe making
them lazily initialised in the future).

This a) catches anyone who might be accessing these members directly and
b) makes space for |CRYPTO_BUFFER|-based values to take the unprefixed
names.

Change-Id: I10573304fb7d6f1ea03f9e645f7fc0acdaf71ac2
Reviewed-on: https://boringssl-review.googlesource.com/12162
Reviewed-by: David Benjamin <davidben@google.com>
2016-11-09 20:07:57 +00:00
David Benjamin
a983b4c248 Set SSL_MODE_NO_AUTO_CHAIN by default.
In transition to removing it altogether, set SSL_MODE_NO_AUTO_CHAIN by
default. If we find some consumer was relying on it, this will allow
them to revert locally with SSL_(CTX_)clear_mode, but hopefully this was
just unused.

BUG=42

Change-Id: Iaf70a436a3324ce02e02dfb18213b6715c034ff2
Reviewed-on: https://boringssl-review.googlesource.com/12180
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-09 19:31:38 +00:00
David Benjamin
da4789e412 Fix BoGo HelloVerifyRequest version handling.
3c6a1ea674 switched what layer handled
the DTLS version mapping but forgot to correct the HelloVerifyRequest
logic to account for this.

Thanks to Jed Davis for noticing this.

Change-Id: I94ea18fc43a7ba15dd7250bfbcf44dbb3361b3ce
Reviewed-on: https://boringssl-review.googlesource.com/11984
Reviewed-by: David Benjamin <davidben@google.com>
2016-11-09 19:01:59 +00:00
David Benjamin
4e41926774 Move key_block into SSL_HANDSHAKE.
This is already manually released at the end of the handshake. With this
change, it can happen implicitly, and SSL3_STATE shrinks further by
another pointer.

Change-Id: I94b9f2e4df55e8f2aa0b3a8799baa3b9a34d7ac1
Reviewed-on: https://boringssl-review.googlesource.com/12121
Reviewed-by: Adam Langley <agl@google.com>
2016-11-09 17:02:33 +00:00
David Benjamin
ec978dd812 Add corpora for fuzzers with fuzzer mode disabled.
Fuzzer mode explores the handshake, but at the cost of losing coverage
on the record layer. Add a separate build flag and client/server
corpora for this mode.

Note this requires tweaks in consumers' fuzzer build definitions.

BUG=111

Change-Id: I1026dc7301645e165a761068a1daad6eedc9271e
Reviewed-on: https://boringssl-review.googlesource.com/12108
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-09 16:53:37 +00:00
David Benjamin
da86360852 Expose SSL_max_seal_overhead.
Change-Id: I0626f926cad033a19eeb977e454f3c9293f01fd6
Reviewed-on: https://boringssl-review.googlesource.com/12106
Reviewed-by: Adam Langley <agl@google.com>
2016-11-09 16:51:46 +00:00
David Benjamin
123db57009 Measure session->timeout from ticket issuance.
The distinction for full handshakes is not meaningful (the timestamp is
currently the start of the handshake), but for renewed sessions, we
currently retain the timestamp of the original issuance.

Instead, when minting or receiving tickets, adjust session->time and
session->timeout so that session->time is the ticket issuance time.

This is still not our final TLS 1.3 behavior (which will need a both
renewable and non-renewable times to honor the server ticket lifetime),
but it gets us closer and unblocks handling ticket_age_add from TLS 1.3
draft 18 and sends the correct NewSessionTicket lifetime.

This fixes the ticket lifetime hint which we emit on the server to
mirror the true ticket lifetime. It also fixes the TLS 1.3 server code
to not set the ticket lifetime hint. There is no need to waste ticket
size with it, it is no longer a "hint" in TLS 1.3, and even in the TLS
1.3 code we didn't fill it in on the server.

Change-Id: I140541f1005a24e53e1b1eaa90996d6dada1c3a1
Reviewed-on: https://boringssl-review.googlesource.com/12105
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2016-11-08 23:51:10 +00:00
David Benjamin
e75cc2766c Fix ssl3_send_new_session_ticket error-handling.
If there is a malloc failure while assembling the ticket, call
CBB_cleanup. Also return -1 instead of 0; zero means EOF in the old
state machine and -1 means error. (Except enough of the stack gets it
wrong that consumers handle both, but we should fix this.)

Change-Id: I98541a9fa12772ec159f9992d1f9f53e5ca4cc5a
Reviewed-on: https://boringssl-review.googlesource.com/12104
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-08 23:03:06 +00:00
David Benjamin
0a011fc49f Flush TLS 1.3 NewSessionTicket messages together.
There's no sense in flushing twice in one flight. This means when
writing a message is finally synchronous, we don't need the intermediate
state at all.

Change-Id: Iaca60d64917f82dce0456a8b15de4ee00f2d557b
Reviewed-on: https://boringssl-review.googlesource.com/12103
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-08 23:01:30 +00:00
David Benjamin
8e816eb7b6 Treat sessions as expired on the boundary second.
TLS 1.3 clarifies that a ticket lifetime of zero means the session is
unusable. We don't currently pay attention to that field (to be fixed in
later changes) but, in preparation for this, switch the >= to a >.

Change-Id: I0e67a0d97bc8def04914f121e84d3e7a2d640d2c
Reviewed-on: https://boringssl-review.googlesource.com/12102
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-08 23:00:04 +00:00
David Benjamin
5b7b09cfca Remove weird special-cases around times in SSL_SESSION.
These don't make sense and mean some SSL_SESSIONs serialize and
deserialize as different values. If we ever managed to create an
SSL_SESSION without a time, it would never expire because time always
gets set to time(NULL). If we ever created an SSL_SESSION with a zero
timeout, the timeout would be... three? Once we start adjusting
time/timeout to issuance time, driving timeout to zero is actually
plausible, so it should work properly.

Instead, make neither field optional. We always fill both out, so this
shouldn't have any effects. If it does, the only effect would be to
decline to resume some existing tickets which must have been so old that
we'd want them to have expired anyway.

Change-Id: Iee3620658c467dd6d96a2b695fec831721b03b5b
Reviewed-on: https://boringssl-review.googlesource.com/12101
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-08 22:59:27 +00:00
David Benjamin
0f31ac7566 Don't serialize negative times and timeouts.
The values are long, so check for negative numbers.

Change-Id: I8fc7333edbed50dc058547a4b53bc10b234071b4
Reviewed-on: https://boringssl-review.googlesource.com/12100
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-11-08 22:57:21 +00:00
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
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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>
2016-11-03 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>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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
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>
2016-11-01 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>
Commit-Queue: 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
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>
2016-10-25 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>
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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>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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
David Benjamin
938fa7cc84 Inline tls1_check_ec_cert.
These functions are only called once. It ends up being not much code if
just done inline.

Change-Id: Ic432b313a6f7994ff9f51436cffbe0c3686a6c7c
Reviewed-on: https://boringssl-review.googlesource.com/11525
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 17:14:50 +00:00
David Benjamin
34de91e377 Revise server-side ECDSA certificate checks.
This is in preparation for simplifying tls1_check_group_id, called by
tls1_check_ec_cert, which, in turn, is in preparation for moving the
peer group list to SSL_HANDSHAKE.

It also helps with bug #55. Move the key usage check to the certificate
configuration sanity check. There's no sense in doing it late. Also
remove the ECDSA peer curve check as we configure certificates
externally. With only one certificate, there's no sense in trying to
remove it.

BUG=55

Change-Id: I8c116337770d96cc9cfd4b4f0ca7939a4f05a1a9
Reviewed-on: https://boringssl-review.googlesource.com/11524
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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2016-10-09 17:04:41 +00:00
David Benjamin
b74b08144e Move next_proto_neg_seen into SSL_HANDSHAKE.
Change-Id: I7f1d546f735ca854ac58c65b529218afda164ec0
Reviewed-on: https://boringssl-review.googlesource.com/11523
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 16:50:13 +00:00
David Benjamin
f5d2cd0808 Move extensions bitmasks into SSL_HANDSHAKE.
Change-Id: I3ab30a44b7f90ef1159e022cd17b7f50ffe27a93
Reviewed-on: https://boringssl-review.googlesource.com/11522
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 16:48:52 +00:00
David Benjamin
a048678cd6 Move some fields from tmp to hs.
This releases memory associated with them after the handshake. Note this
changes the behavior of |SSL_get0_certificate_types| and
|SSL_get_client_CA_list| slightly. Both functions now return NULL
outside of the handshake. But they were already documented to return
something undefined when not called at the CertificateRequest.

A survey of callers finds none that would care. (Note
SSL_get_client_CA_list is used both as a getter for the corresponding
server config setter and to report client handshake properties. Only the
latter is affected.) It's also pretty difficult to imagine why a caller
would wish to query this stuff at any other time, and there are clear
benefits to dropping the CA list after the handshake (some servers send
ABSURDLY large lists).

Change-Id: I3ac3b601ff0cfa601881ce77ae33d99bb5327004
Reviewed-on: https://boringssl-review.googlesource.com/11521
Reviewed-by: Adam Langley <agl@google.com>
2016-10-09 16:47:31 +00:00
David Benjamin
1286beef94 Test that unknown TLS 1.3 ticket extensions are tolerated.
Change-Id: Ifcdbeab9291d1141605a09a1960702c792cffa86
Reviewed-on: https://boringssl-review.googlesource.com/11561
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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2016-10-07 21:00:59 +00:00
David Benjamin
1a5e8ecd64 Apply GREASE to TLS 1.3 tickets.
Change-Id: I5d4fc0d3204744e93d71a36923469035c19a5b10
Reviewed-on: https://boringssl-review.googlesource.com/11560
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Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-10-07 20:58:26 +00:00
Steven Valdez
3cbdc34619 Add GENERIC selector for TLS 1.3 AEAD-only cipher suites.
Change-Id: Ib499b3393962a4d41cf9694e055ed3eb869d91a2
Reviewed-on: https://boringssl-review.googlesource.com/11504
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-06 19:37:40 +00:00
David Benjamin
7f78df470b Add a few more tests around processing the server PSK extension.
The server acknowledging a non-existent session is a particularly
interesting case since getting it wrong means a NULL crash.

Change-Id: Iabde4955de883595239cfd8e9d84a7711e60a886
Reviewed-on: https://boringssl-review.googlesource.com/11500
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Steven Valdez <svaldez@google.com>
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2016-10-06 14:38:01 +00:00
Steven Valdez
803c77a681 Update crypto negotation to draft 15.
BUG=77

Change-Id: If568412655aae240b072c29d763a5b17bb5ca3f7
Reviewed-on: https://boringssl-review.googlesource.com/10840
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-10-06 14:37:09 +00:00
Steven Valdez
5b9860827f Updating NewSessionTicket message and updating PSK to Draft 15.
BUG=77

Change-Id: Id8c45e98c4c22cdd437cbba1e9375239e123b261
Reviewed-on: https://boringssl-review.googlesource.com/10763
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-10-06 14:36:12 +00:00
David Benjamin
5ecb88b95b Make EnableAllCiphers client-only and rename.
EnableAllCiphers is problematic since some (version, cipher)
combinations aren't even defined and crash. Instead, use the
SendCipherSuite bug to mask the true cipher (which is becomes arbitrary)
for failure tests. The shim should fail long before we get further.

This lets us remove a number of weird checks in the TLS 1.3 code.

This also fixes the UnknownCipher tests which weren't actually testing
anything. EnableAllCiphers is now AdvertiseAllConfiguredCiphers and
does not filter out garbage values.

Change-Id: I7102fa893146bb0d096739e768c5a7aa339e51a8
Reviewed-on: https://boringssl-review.googlesource.com/11481
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Reviewed-by: David Benjamin <davidben@google.com>
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2016-10-05 14:34:58 +00:00
David Benjamin
daa8850c83 Add tests for OCSP's interaction with resumption.
This is another case where the specification failed to hammer things
down and OpenSSL messed it up as a result. Also fix the SCT test in TLS
1.3.

Change-Id: I47541670447d1929869e1a39b2d9671a127bfba0
Reviewed-on: https://boringssl-review.googlesource.com/11480
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2016-10-04 20:53:21 +00:00
David Benjamin
6dbde984a2 Fix TLS 1.3 minimum version tests.
The client/server split didn't actually make sense. We're interested in
whether the client will notice the bad version before anything else, so
ignore peer cipher preferences so all combinations work.

Change-Id: I52f84b932509136a9b39d93e46c46729c3864bfd
Reviewed-on: https://boringssl-review.googlesource.com/11413
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2016-10-04 14:57:24 +00:00
Adam Langley
3e9e043229 Add dummy |SSL_COMP_free_compression_methods|.
cURL calls this function if |OPENSSL_VERSION_NUMBER| is in [0x10002003,
0x10002fff], which it now is for BoringSSL after 0aecbcf6.

Change-Id: I3f224f73f46791bd2232a1a96ed926c32740a6f6
Reviewed-on: https://boringssl-review.googlesource.com/11461
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-10-04 00:31:21 +00:00
David Benjamin
ad75a661bf Improve version extension tests.
ConflictingVersionNegotiation really should be about, say 1.1 and 1.2
since those may be negotiated via either mechanism. (Those two cases are
actually kinda weird and we may wish to change the spec. But, in the
meantime, test that we have the expected semantics.)

Also test that we ignore true TLS 1.3's number for now, until we use it,
and that TLS 1.3 suitably ignores ClientHello.version.

Change-Id: I76c660ddd179313fa68b15a6fda7a698bef4d9c9
Reviewed-on: https://boringssl-review.googlesource.com/11407
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-03 18:30:10 +00:00
David Benjamin
592b532dda Fix TLS 1.3 downgrade detection tests.
They weren't updated for the new version negotiation. (Though right now
they're just testing that we *don't* implement the downgrade detection
because it's a draft version.)

Change-Id: I4c983ebcdf3180d682833caf1e0063467ea41544
Reviewed-on: https://boringssl-review.googlesource.com/11406
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-10-03 18:26:55 +00:00
David Benjamin
7f0965a66d Check versions before trying to send KeyUpdate.
Otherwise we panic. Thanks to EKR for reporting.

Change-Id: Ie4b6c2e18e1c77c7b660ca5d4c3bafb38a82cb6a
Reviewed-on: https://boringssl-review.googlesource.com/11405
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2016-10-03 18:26:19 +00:00
Adam Langley
f139c9957c Return immediately when cipher-string processing fails.
Rather than clear variables and break out of a loop that just ends up
returning anyway, just return. This makes all the abort points
consistent in this function.

Change-Id: I51d862e7c60a9e967773f15a17480b783af8c456
Reviewed-on: https://boringssl-review.googlesource.com/11422
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2016-10-03 18:10:26 +00:00
Adam Langley
f99f2448bd Return immediately if a cipher command is invalid.
Breaking from inside the inner loop doesn't do what the code wants.
Instead the outer loop will continue running and it's possible for it to
read off the end of the buffer. (Found with libFuzzer.)

Next change will update the other abort points in this code to match.

Change-Id: I006dca0cd4c31db1c4b5e84b996fe24b2f1e6c13
Reviewed-on: https://boringssl-review.googlesource.com/11421
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2016-10-03 18:03:08 +00:00
David Benjamin
31f5b3c605 Document that malloc tests require a longer timeout.
I always forget this.

Change-Id: I9fa15cebb6586985ddc48cdbf9d184a49a8bfb02
Reviewed-on: https://boringssl-review.googlesource.com/11402
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-30 19:13:05 +00:00
Alessandro Ghedini
5fd1807d95 Implement SSL_CTX_set1_curves_list()
This function is used by NGINX to enable specific curves for ECDH from a
configuration file. However when building with BoringSSL, since it's not
implmeneted, it falls back to using EC_KEY_new_by_curve_name() wich doesn't
support X25519.

Change-Id: I533df4ef302592c1a9f9fc8880bd85f796ce0ef3
Reviewed-on: https://boringssl-review.googlesource.com/11382
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2016-09-30 00:45:19 +00:00
David Benjamin
a252b34d66 Add tests for very large handshake messages.
OpenSSL recently had a regression here (CVE-2016-6309). We're fine,
but so that we stay that way, add some tests.

Change-Id: I244d7ff327b7aad550f86408c5e5e65e6d1babe5
Reviewed-on: https://boringssl-review.googlesource.com/11321
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2016-09-29 16:31:54 +00:00
David Benjamin
d9791bf10a Apply GREASE to the version extension.
BUG=106

Change-Id: Iaa12aeb67627f3c22fe4a917c89c646cb3dc1843
Reviewed-on: https://boringssl-review.googlesource.com/11325
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2016-09-27 21:07:52 +00:00
Steven Valdez
fdd10998e1 Moving TLS 1.3 version negotiation into extension.
Change-Id: I73f9fd64b46f26978b897409d817b34ec9d93afd
Reviewed-on: https://boringssl-review.googlesource.com/11080
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2016-09-27 20:12:22 +00:00
David Benjamin
cb18ac2bc3 Add a test for SSL_version.
We were never really testing this.

Change-Id: Ia953870053d16d3994ae48172017d384c7bc3601
Reviewed-on: https://boringssl-review.googlesource.com/11341
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2016-09-27 18:16:26 +00:00
David Benjamin
b1dd8cdab5 Prepare runner's wire/version conversions for the version extension.
This mirror's 2dc0204603 on the C side.

BUG=90

Change-Id: Iebb72df5a5ae98cb2fd8db519d973cd734ff05ea
Reviewed-on: https://boringssl-review.googlesource.com/11320
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2016-09-27 15:09:38 +00:00
David Benjamin
3c6a1ea674 Apply version/wire mapping at a higher layer in runner.
This is in preparation for implementing the version extension and is
probably what we should have done from the beginning as it makes
intolerance bugs simpler.

This means knobs like SendClientVersion and SendServerVersion deal with
the wire values while knobs like NegotiateVersion and MaxVersion deal
with logical versions. (This matches how the bugs have always worked.
SendFoo is just a weird post-processing bit on the handshake messages
while NegotiateVersion actually changes how BoGo behaves.)

BUG=90

Change-Id: I7f359d798d0899fa2742107fb3d854be19e731a4
Reviewed-on: https://boringssl-review.googlesource.com/11300
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2016-09-27 15:09:16 +00:00
David Benjamin
5ab4596070 Fix ssl_ctx_make_profiles error handling.
It didn't clean up |profiles| on error or check for
sk_SRTP_PROTECTION_PROFILE_push failures.

Change-Id: I44d7f64896ad73347fbb0fc79752be4de70d3ab7
Reviewed-on: https://boringssl-review.googlesource.com/11323
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-27 13:27:06 +00:00
David Benjamin
1eeb0b00ba Check for sk_X509_NAME_push failures.
Also tidy up the logic slightly.

Change-Id: I708254406b2df52435ec434ac9806e8eb2cbe928
Reviewed-on: https://boringssl-review.googlesource.com/11322
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-27 13:18:37 +00:00
David Benjamin
04fe9013c4 Require custom private keys to specify curve in 1.3.
If someone is still using EVP_PKEY_EC (I really should get on converting
Chromium...), don't silently skip the curve match check in TLS 1.3,
otherwise it may work on accident. Refuse to sign anything so this gets
caught.

Change-Id: I4ea46efb0b8f31a656771b9d2e5f882bba64eb99
Reviewed-on: https://boringssl-review.googlesource.com/11244
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Commit-Queue: David Benjamin <davidben@google.com>
2016-09-26 17:22:48 +00:00
David Benjamin
65ac997f20 Implement draft-davidben-tls-grease-01.
This GREASEs cipher suites, groups, and extensions. For now, we'll
always place them in a hard-coded position. We can experiment with more
interesting strategies later.

If we add new ciphers and curves, presumably we prefer them over current
ones, so place GREASE values at the front. This prevents implementations
from parsing only the first value and ignoring the rest.

Add two new extensions, one empty and one non-empty. Place the empty one
in front (IBM WebSphere can't handle trailing empty extensions) and the
non-empty one at the end.

Change-Id: If2e009936bc298cedf2a7a593ce7d5d5ddbb841a
Reviewed-on: https://boringssl-review.googlesource.com/11241
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2016-09-23 21:11:15 +00:00
David Benjamin
1032df56e7 Disable Channel ID signature checking in fuzzer mode.
Get us a little bit more room here.

BUG=79

Change-Id: Ifadad94ead7794755a33f02d340111694b3572af
Reviewed-on: https://boringssl-review.googlesource.com/11228
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-22 21:35:12 +00:00
David Benjamin
7364719655 Rename NPN-Server test.
That is an extremely confusing name. It should be NPN-Declined-TLS13.

Change-Id: I0e5fa50a3ddb0b80e88a8bc10d0ef87d0fff0a54
Reviewed-on: https://boringssl-review.googlesource.com/11227
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-22 21:35:07 +00:00
David Benjamin
c07afb79f6 Record resumption and renewal transcripts separately.
We recently added a three-connection option, but the transcripts were
still assuming just -Normal and -Resume.

Change-Id: I8816bce95dd7fac779af658e3eb86bc78bb95c91
Reviewed-on: https://boringssl-review.googlesource.com/11226
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
2016-09-22 21:32:14 +00:00
David Benjamin
fbc45d7228 No-op ticket encryption in fuzzer mode.
This allows the fuzzer to discover server-side resumption paths by
simply supplying what we'd like the ticket to decrypt to in the clear.
We also have a natural way to get transcripts out of runner. We record
the runner-side transcripts, so all resumption handshakes will replay
the shim-created unencrypted tickets.

BUG=104

Change-Id: Icf9cbf4af520077d38e2c8c2766b6f8bfa3c9ab5
Reviewed-on: https://boringssl-review.googlesource.com/11224
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2016-09-22 21:26:23 +00:00
David Benjamin
01a905717c Fix remaining non-determinism in fuzzer transcripts.
Both the C and Go code were sampling the real clock. With this, two
successive iterations of runner transcripts give the same output.

Change-Id: I4d9e219e863881bf518c5ac199dce938a49cdfaa
Reviewed-on: https://boringssl-review.googlesource.com/11222
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-22 21:14:00 +00:00
David Benjamin
ac5e47f300 Add a fuzzer mode suppressions file.
We want to ensure -fuzzer passes tests, except for the tests it
intentionally fails on. This ensures that we don't lose our ability to
refresh the fuzzer transcripts.

Change-Id: I761856c30379a3934fd46a24627ef8415b136f93
Reviewed-on: https://boringssl-review.googlesource.com/11221
Reviewed-by: Adam Langley <agl@google.com>
2016-09-22 21:11:23 +00:00
David Benjamin
196df5bfa2 Add a InvalidChannelIDSignature test.
Apparently we never wrote one of those. Also send a decrypt_error alert
to be consistent with all the other signature checks.

Change-Id: Ib5624d098d1e3086245192cdce92f5df26005064
Reviewed-on: https://boringssl-review.googlesource.com/11180
Reviewed-by: David Benjamin <davidben@google.com>
2016-09-22 20:41:41 +00:00
David Benjamin
f3fbadeae0 Add tests for SSL_peek.
SSL_peek works fine for us, but OpenSSL 1.1.0 regressed this
(https://github.com/openssl/openssl/issues/1563), and we don't have
tests either. Fix this.

SSL_peek can handle all weird events that SSL_read can, so use runner
and tell bssl_shim to do a SSL_peek + SSL_peek + SSL_read instead of
SSL_read. Then add tests for all the events we may discover.

Change-Id: I9e8635e3ca19653a02a883f220ab1332d4412f98
Reviewed-on: https://boringssl-review.googlesource.com/11090
Reviewed-by: Adam Langley <agl@google.com>
2016-09-22 18:45:20 +00:00
David Benjamin
e34bcc91c0 Support default versions with set_{min,max}_proto_version.
Upstream makes 0 mean "min/max supported version". Match that behavior,
although call it "default" instead. It shouldn't get you TLS 1.3 until
we're ready to turn it on everywhere.

BUG=90

Change-Id: I9f122fceb701b7d4de2ff70afbc1ffdf370cb97e
Reviewed-on: https://boringssl-review.googlesource.com/11181
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2016-09-21 21:41:49 +00:00
David Benjamin
c8b6b4fe4a Only predict X25519 in TLS 1.3.
We'd previously been assuming we'd want to predict P-256 and X25519 but,
on reflection, that's nonsense. Although, today, P-256 is widespread and
X25519 is less so, that's not the right question to ask. Those servers
are all 1.2.

The right question is whether we believe enough servers will get to TLS
1.3 before X25519 to justify wasting 64 bytes on all other connections.
Given that OpenSSL has already shipped X25519 and Microsoft was doing
interop testing on X25519 around when we were shipping it, I think the
answer is no.

Moreover, if we are wrong, it will be easier to go from predicting one
group to two rather than the inverse (provided we send a fake one with
GREASE). I anticipate prediction-miss HelloRetryRequest logic across the
TLS/TCP ecosystem will be largely untested (no one wants to pay an RTT),
so taking a group out of the predicted set will likely be a risky
operation.

Only predicting one group also makes things a bit simpler. I haven't
done this here, but we'll be able to fold the 1.2 and 1.3 ecdh_ctx's
together, even.

Change-Id: Ie7e42d3105aca48eb9d97e2e05a16c5379aa66a3
Reviewed-on: https://boringssl-review.googlesource.com/10960
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-21 21:18:34 +00:00
David Benjamin
af56fbd62a Renumber TLS 1.3 signature algorithms.
The old numbers violate a MUST-level requirement in TLS 1.2 to not
advertise anonymous (0x0700 ends in 0x00). The spec has been updated
with new allocations which avoid these.

BUG=webrtc:6342

Change-Id: Ia5663ada98fa1ebf0f8a7f50fe74a0e9206c4194
Reviewed-on: https://boringssl-review.googlesource.com/11131
Reviewed-by: Adam Langley <agl@google.com>
2016-09-21 20:54:15 +00:00
David Benjamin
7e1f984a7c Fix some bugs in TLS 1.3 server key_share code.
Found by libFuzzer and then one more mistake caught by valgrind. Add a
test for this case.

Change-Id: I92773bc1231bafe5fc069e8568d93ac0df4c8acb
Reviewed-on: https://boringssl-review.googlesource.com/11129
Reviewed-by: David Benjamin <davidben@google.com>
2016-09-21 20:40:10 +00:00
David Benjamin
e470690633 Align SSL_set_{min,max}_version with upstream.
Upstream added these functions after we did but decided to change the
names slightly. I'm not sure why they wanted to add the "proto" in
there, but align with them nonetheless so the ecosystem only has one set
of these functions.

BUG=90

Change-Id: Ia9863c58c9734374092051f02952b112806040cc
Reviewed-on: https://boringssl-review.googlesource.com/11123
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-21 20:06:18 +00:00
David Benjamin
2dc0204603 Don't return invalid versions in version_from_wire.
This is in preparation for using the supported_versions extension to
experiment with draft TLS 1.3 versions, since we don't wish to restore
the fallback. With versions begin opaque values, we will want
version_from_wire to reject unknown values, not attempt to preserve
order in some way.

This means ClientHello.version processing needs to be separate code.
That's just written out fully in negotiate_version now. It also means
SSL_set_{min,max}_version will notice invalid inputs which aligns us
better with upstream's versions of those APIs.

This CL doesn't replace ssl->version with an internal-representation
version, though follow work should do it once a couple of changes land
in consumers.

BUG=90

Change-Id: Id2f5e1fa72847c823ee7f082e9e69f55e51ce9da
Reviewed-on: https://boringssl-review.googlesource.com/11122
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Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-21 19:51:45 +00:00
David Benjamin
c027999c28 Take the version parameter out of ssl_do_msg_callback.
This will make it a little easier to store the normalized version rather
than the wire version. Also document the V2ClientHello behavior.

Change-Id: I5ce9ccce44ca48be2e60ddf293c0fab6bba1356e
Reviewed-on: https://boringssl-review.googlesource.com/11121
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-09-21 18:55:27 +00:00
David Benjamin
d2ba8891e0 Improve -valgrind error-handling.
Passing --quiet makes valgrind only print out errors, so we don't need
to suppress things. Combine that with checking valgrind's dedicated exit
code so we notice errors that happen before the "---DONE---" marker.

This makes that marker unnecessary for valgrind. all_tests.go was not
sensitive to this, but still would do well to have valgrind be silent.

Change-Id: I841edf7de87081137e38990e647e989fd7567295
Reviewed-on: https://boringssl-review.googlesource.com/11128
Reviewed-by: Adam Langley <agl@google.com>
2016-09-21 17:25:32 +00:00
David Benjamin
9aafb64849 Don't swallow tool output on failure.
If the test failed due to non-ASan reasons but ASan also had errors,
output those too.

Change-Id: Id908fe2a823c59255c6a9585dfaa894a4fcd9f59
Reviewed-on: https://boringssl-review.googlesource.com/11127
Reviewed-by: Adam Langley <agl@google.com>
2016-09-21 17:24:42 +00:00
David Benjamin
7a4aaa4ce7 Fix TLS 1.3 fuzzer mode in Go.
Runner needs to implement fuzzer mode as well so we can record
transcripts from it. A bunch of tests were failing:

- C and Go disagreed on what fuzzer mode did to TLS 1.3 padding. So we
  fuzz more code, align Go with C. Fuzzer mode TLS 1.3 still pads but
  just skips the final AEAD.

- The deterministic RNG should be applied per test, not per exchange. It
  turns out, if your RNG is deterministic, one tends to pick the same
  session ID over and over which confuses clients. (Resumption is
  signaled by echoing the session ID.)

Now the only failing tests are the ones one would expect to fail.

BUG=79

Change-Id: Ica23881a6e726adae71e6767730519214ebcd62a
Reviewed-on: https://boringssl-review.googlesource.com/11126
Reviewed-by: Adam Langley <agl@google.com>
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2016-09-21 17:18:40 +00:00
David Benjamin
e0ff767025 Remove SSL_set_fallback_version.
Ding-dong the fallback's dead.
https://mailarchive.ietf.org/arch/msg/tls/xfCh7D7hISFs5x-eA0xHwksoLrc

Also we'll need to tweak the versioning code slightly to implement
supported_versions and it's nice to have this out of the way.

Change-Id: I0961e19ea56b4afd828f6f48858ac6310129503d
Reviewed-on: https://boringssl-review.googlesource.com/11120
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2016-09-21 17:03:42 +00:00
David Benjamin
e63d9d7625 Test interaction of RSA key exchange and ClientHello.version.
If we see garbage in ClientHello.version and then select static RSA,
that garbage is what goes in the premaster.

Change-Id: I65190a44439745e6b5ffaf7669f063da725c8097
Reviewed-on: https://boringssl-review.googlesource.com/11092
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2016-09-20 23:13:52 +00:00
David Benjamin
786793411a Do not distinguish NULL and empty PSK identity hints.
Plain PSK omits the ServerKeyExchange when there is no hint and includes
it otherwise (it should have always sent it), while other PSK ciphers
like ECDHE_PSK cannot omit the hint. Having different capabilities here
is odd and RFC 4279 5.2 suggests that all PSK ciphers are capable of
"[not] provid[ing] an identity hint".

Interpret this to mean no identity hint and empty identity hint are the
same state. Annoyingly, this gives a plain PSK implementation two
options for spelling an empty hint. The spec isn't clear and this is not
really a battle worth fighting, so I've left both acceptable and added a
test for this case.

See also https://android-review.googlesource.com/c/275217/. This is also
consistent with Android's PskKeyManager API, our only consumer anyway.

https://developer.android.com/reference/android/net/PskKeyManager.html

Change-Id: I8a8e6cc1f7dd1b8b202cdaf3d4f151bebfb4a25b
Reviewed-on: https://boringssl-review.googlesource.com/11087
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2016-09-20 23:00:47 +00:00
David Benjamin
bac75b80cc Move peer_psk_identity_hint to SSL_HANDSHAKE.
One less field to reset on renego and save a pointer of post-handshake
memory.

Change-Id: Ifc0c3c73072af244ee3848d9a798988d2c8a7c38
Reviewed-on: https://boringssl-review.googlesource.com/11086
Reviewed-by: Adam Langley <agl@google.com>
2016-09-20 22:37:24 +00:00
David Benjamin
4fe3c90b7d Release TLS 1.3 key shares earlier in TLS 1.2.
This isn't hugely important since the hs object will actually be
released at the end of the handshake, but no sense in holding on to them
longer than needed.

Also release |public_key| when we no longer need it and document what
the fields mean.

Change-Id: If677cb4a915c75405dabe7135205630527afd8bc
Reviewed-on: https://boringssl-review.googlesource.com/10360
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2016-09-19 20:35:35 +00:00
David Benjamin
2c66e079ab Don't send the access_denied alert innappropriately.
access_denied is only used to indicate client cert errors and Chrome
maps it to ERR_SSL_BAD_CLIENT_AUTH_CERT accordingly:

   access_denied
      A valid certificate was received, but when access control was
      applied, the sender decided not to proceed with negotiation.  This
      message is always fatal.

We don't appear to be the cause of Chrome's recent
ERR_SSL_BAD_CLIENT_AUTH_CERT spike, but we should send these correctly
nonetheless.

If the early callback fails, handshake_failure seems the most
appropriate ("I was unable to find suitable parameters"). There isn't
really an alert that matches DoS, but internal_error seems okay?

   internal_error
      An internal error unrelated to the peer or the correctness of the
      protocol (such as a memory allocation failure) makes it impossible
      to continue.  This message is always fatal.

There's nothing wrong, per se, with your ClientHello, but I just can't
deal with it right now. Please go away.

Change-Id: Icd1c998c09dc42daa4b309c1a4a0f136b85eb69d
Reviewed-on: https://boringssl-review.googlesource.com/11084
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2016-09-16 20:12:09 +00:00
David Benjamin
9a5f49eec0 Remove a few more remnants of RC4/TLS.
Change-Id: I5d7fd9ba0688a3ebd6f6d36768cc3c0e33e2da52
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2016-09-16 16:34:50 +00:00
Matthew Braithwaite
8aaa9e12c2 Remove RC4 from TLS for real.
This withdraws support for -DBORINGSSL_ENABLE_RC4_TLS, and removes the
RC4 AEADs.

Change-Id: I1321b76bfe047d180743fa46d1b81c5d70c64e81
Reviewed-on: https://boringssl-review.googlesource.com/10940
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2016-09-16 03:06:36 +00:00
David Benjamin
6e3f5cc7e1 Add SSL_CTX_get_keylog_callback.
Conscrypt would like to write a CTS test that the callback isn't set
unexpectedly.

Change-Id: I11f987422daf0544e90f5cff4d7aaf557ac1f5a2
Reviewed-on: https://boringssl-review.googlesource.com/11060
Reviewed-by: Kenny Root <kroot@google.com>
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2016-09-14 19:20:33 +00:00
David Benjamin
45bdb2e1e3 Remove identical tests.
I'm not sure what happened here. These are both the same as
MissingKeyShare-Client.

Change-Id: I6601ed378d8639c1b59034f1e96c09a683bb62ca
Reviewed-on: https://boringssl-review.googlesource.com/11007
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2016-09-13 15:50:35 +00:00
David Benjamin
3d458dc048 Revert of Determining certificate_auth and key_exchange based on SSL.
Reason for revert:  Right now in TLS 1.3, certificate_auth is exactly
the same as whether we're doing resumption. With the weird reauth
stuff punted to later in the spec, having extra state is just more
room for bugs to creep in.

Original issue's description:
> Determining certificate_auth and key_exchange based on SSL.
> 
> This allows us to switch TLS 1.3 to use non-cipher based negotiation
> without needing to use separate functions between 1.3 and below.
> 
> BUG=77
> 
> Change-Id: I9207e7a6793cb69e8300e2c15afe3548cbf82af2
> Reviewed-on: https://boringssl-review.googlesource.com/10803
> 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>
> 

Change-Id: I240e3ee959ffd1f2481a06eabece3af554d20ffa
Reviewed-on: https://boringssl-review.googlesource.com/11008
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2016-09-12 22:54:08 +00:00
David Benjamin
639846e5e4 Add tests for trailing data in handshake messages.
It's easy to forget to check those. Unfortunately, it's also easy to
forget to check inner structures, which is going to be harder to stress,
but do these to start with. In doing, so fix up and unify some
error-handling, and add a missing check when parsing TLS 1.2
CertificateRequest.

This was also inspired by the recent IETF posting.

Change-Id: I27fe3cd3506258389a75d486036388400f0a33ba
Reviewed-on: https://boringssl-review.googlesource.com/10963
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2016-09-12 21:00:50 +00:00
David Benjamin
cd2c806530 Factor per-message test machinery out.
This will let us use the same test scenarios for testing messages with
trailing garbage or skipped messages.

Change-Id: I9f177983e8dabb6c94d3d8443d224b79a58f40b1
Reviewed-on: https://boringssl-review.googlesource.com/10962
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2016-09-12 19:56:40 +00:00
David Benjamin
54091230cd Use C99 for size_t loops.
This was done just by grepping for 'size_t i;' and 'size_t j;'. I left
everything in crypto/x509 and friends alone.

There's some instances in gcm.c that are non-trivial and pulled into a
separate CL for ease of review.

Change-Id: I6515804e3097f7e90855f1e7610868ee87117223
Reviewed-on: https://boringssl-review.googlesource.com/10801
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2016-09-12 19:44:24 +00:00
Steven Valdez
84b5c003cc Serialize unresumable sessions to a placeholder value.
Change-Id: I676d7fb00d63d74946b96c22ae2705072033c5f7
Reviewed-on: https://boringssl-review.googlesource.com/10620
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2016-09-12 19:25:02 +00:00
Steven Valdez
bd09eccd6d Determining certificate_auth and key_exchange based on SSL.
This allows us to switch TLS 1.3 to use non-cipher based negotiation
without needing to use separate functions between 1.3 and below.

BUG=77

Change-Id: I9207e7a6793cb69e8300e2c15afe3548cbf82af2
Reviewed-on: https://boringssl-review.googlesource.com/10803
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2016-09-12 19:23:14 +00:00
David Benjamin
4d0be24319 Only allow SSL_set_session before the handshake.
Otherwise things break horribly. Explicitly abort to help catch bugs.

Change-Id: I66e2bf8808199b3331b3adde68d73758a601eb8c
Reviewed-on: https://boringssl-review.googlesource.com/10761
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2016-09-12 19:16:46 +00:00
David Benjamin
fc0c9d9665 Use a common state to begin the handshake.
This simplifies the logic around SSL_clear to reset the state for a new
handshake. The state around here is still a little iffy, but this is a
slight improvement.

The SSL_ST_CONNECT and SSL_ST_ACCEPT states are still kept separate to
avoid problems with the info callback reporting SSL_ST_INIT. Glancing
through info callback consumers, although they're all debugging, they
tend to assume that all intermediate states either have only
SSL_ST_CONNECT set or only SSL_ST_ACCEPT set.

(They also all look identical which makes me think it's copy-and-pasted
from OpenSSL command-line tool or something.)

Change-Id: I55503781e52b51b4ca829256c14de6f5942dae51
Reviewed-on: https://boringssl-review.googlesource.com/10760
Reviewed-by: Adam Langley <agl@google.com>
2016-09-12 19:00:50 +00:00
David Benjamin
5510863fbd Temporary remove the TLS 1.3 anti-downgrade mechanism.
This mechanism is incompatible with deploying draft versions of TLS 1.3.

Suppose a draft M client talks to a draft N server, M != N. (Either M or
N could also be the final standard revision should there be lingering
draft clients or servers.) The server will notice the mismatch and
pretend ClientHello.version is TLS 1.2, not TLS 1.3. But this will
trigger anti-downgrade signal and cause an interop failure! And if it
doesn't trigger, all the clever tricks around ServerHello.random being
signed in TLS 1.2 are moot.

We'll put this back when the dust has settled.

Change-Id: Ic3cf72b7c31ba91e5cca0cfd7a3fca830c493a43
Reviewed-on: https://boringssl-review.googlesource.com/11005
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2016-09-12 18:10:23 +00:00
David Benjamin
c241d79261 Add tests around compression methods.
Not that this matters in the slightest, but the recent IETF mailing
reminded me we don't test this.

Change-Id: I300c96d6a63733d538a7019a7cb74d4e65d0498f
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2016-09-09 17:29:21 +00:00
David Benjamin
abe94e3b0d Test that SNI warning alerts are ignored.
Although RFC 6066 recommends against it, some servers send a warning
alert prior to ServerHello on SNI mismatch, and, per spec, TLS 1.2
allows it.

We're fine here, but add a test for it. It interacts interestingly with
TLS 1.3 forbidding warning alerts because it happens before version
negotiation.

Change-Id: I0032313c986c835b6ae1aa43da6ee0dad17a97c2
Reviewed-on: https://boringssl-review.googlesource.com/10800
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2016-09-09 16:20:25 +00:00
David Benjamin
f0e935d7ce Fold stack-allocated types into headers.
Now that we have the extern "C++" trick, we can just embed them in the
normal headers. Move the EVP_CIPHER_CTX deleter to cipher.h and, in
doing so, take away a little bit of boilerplate in defining deleters.

Change-Id: I4a4b8d0db5274a3607914d94e76a38996bd611ec
Reviewed-on: https://boringssl-review.googlesource.com/10804
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2016-09-07 21:50:05 +00:00
David Benjamin
0fb46d4a35 const-correct a variable.
Change-Id: I00507014c55b2c7fd442a5aa2c3afcbf8c48049b
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2016-09-06 18:19:37 +00:00
Matt Braithwaite
d17d74d73f Replace Scoped* heap types with bssl::UniquePtr.
Unlike the Scoped* types, bssl::UniquePtr is available to C++ users, and
offered for a large variety of types.  The 'extern "C++"' trick is used
to make the C++ bits digestible to C callers that wrap header files in
'extern "C"'.

Change-Id: Ifbca4c2997d6628e33028c7d7620c72aff0f862e
Reviewed-on: https://boringssl-review.googlesource.com/10521
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2016-09-01 22:22:54 +00:00
David Benjamin
57e929f3c8 Enable RSA-PSS in TLS 1.2 by default.
Add a test that RSA-PSS is available in TLS 1.2 by default, both for
signing and verifying. Note that if a custom SSL_PRIVATE_KEY_METHOD is
used and it sets signing preferences, it won't use RSA-PSS if it doesn't
know about it. (See *-Sign-Negotiate-* tests.)

Change-Id: I3776a0c95480188a135795f7ebf31f2b0e0626cc
Reviewed-on: https://boringssl-review.googlesource.com/10723
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2016-08-30 22:50:05 +00:00
David Benjamin
9962057197 Test that the early callback can affect max_version.
The early callback needs to run before even version negotiation has been
resolved.

Change-Id: Ibb449ccec07dedef19b7827400ef318fa2f422c0
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2016-08-30 15:56:37 +00:00