Commit Graph

3405 Commits

Author SHA1 Message Date
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
Reviewed-by: Steven Valdez <svaldez@google.com>
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2016-09-12 18:10:23 +00:00
David Benjamin
0e9138d295 We no longer allow out < in in-place operations
The (rather long...) preamble to aead.h still said we allowed this.

Change-Id: I4ba02ef196c6d5439408000cf3c296111b55ff36
Reviewed-on: https://boringssl-review.googlesource.com/11004
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2016-09-12 14:43:38 +00:00
David Benjamin
2f401ecaac Fix IWYU violation in speed.cc.
We need time.h for clock_gettime on Linux. Previously, scoped_types.h
was pulling in everything and getting it for us, but now it doesn't
exist. We seem to have been pulling it in on accident anyway but
it seems Android's system headers end up not doing so.

Change-Id: I0a04495b1462649d77d62018e317c416803ac58d
Reviewed-on: https://boringssl-review.googlesource.com/11000
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2016-09-09 23:56:01 +00:00
David Benjamin
31168c9999 Print out the signature algorithm in bssl client.
I keep wishing we had that available and patching this in.

Change-Id: I4ef04fcc6be5b00a9fcbdc2771a7ee7e2313b5c5
Reviewed-on: https://boringssl-review.googlesource.com/10980
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2016-09-09 21:42:30 +00:00
Steven Valdez
ed6c5d3910 crypto/bn/*: x86[_64] division instruction doesn't handle constants, change constraint from 'g' to 'rm'.
(Imported from upstream's 2a20b6d9731488bcb500e58a434375f59fb9adcc)

Change-Id: If3db4dac3d4cd675cf7854c4e154823d25d00eb9
Reviewed-on: https://boringssl-review.googlesource.com/10921
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2016-09-09 20:59:47 +00:00
David Benjamin
4709203de6 Make forward-declaring bssl::UniquePtr<T> actually work.
The compiler complains about:
  error: explicit specialization of
  'bssl::internal::Deleter<evp_pkey_st>' after instantiation

This is because, although the deleter's operator() is not instantiated
without emitting std::unique_ptr's destructor, the deleter itself *is*.
Deleters are allowed to have non-zero size, so a std::unique_ptr
actually embeds a copy of the deleter, so it needs the size of the
deleter.

As with all problems in computer science, we fix this with a layer of
indirection. Instead of specializing the deleter, we specialize
bssl::internal::DeleterImpl which, when specialized, has a static method
Free. That is only instantiated inside
bssl::internal::Deleter::operator(), giving us the desired properties.

(Did I mention forward decls are terrible? I wish people wouldn't want
them so much.)

Also appease clang-format.

Change-Id: I9a07b2fd13e8bdfbd204e225ac72c52d20a397dc
Reviewed-on: https://boringssl-review.googlesource.com/10964
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2016-09-09 20:25:44 +00:00
Steven Valdez
934b57e8c9 Fix a few leaks in X509_REQ_to_X509.
(Imported from upstream's a404656a8b40d9f1172e5e330f7e2d9d87cabab8)

Change-Id: I4ddebfbaeab433bae7c1393a8258d786801bb633
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2016-09-09 20:17:16 +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
Reviewed-on: https://boringssl-review.googlesource.com/10961
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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
3e5619d121 Blacklist STLPort from C++ scopers.
It lacks std::unique_ptr, despite some consumers using it with C++11 in
the compiler enabled.

Change-Id: Icc79ac4f2385440b36aa6b01b1477abcfa8a9388
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2016-09-07 21:57:13 +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
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2016-09-07 21:50:05 +00:00
David Benjamin
7072884350 Fix bssl client -session-out.
It was switched to using the callbacks, but the callbacks require
SSL_SESS_CACHE_CLIENT be set.

(We should possibly just stop conditioning the callback on that bit
since it doesn't do anything.)

Change-Id: I96277b8a75975a86393260a6291eafc9cb2c6a78
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2016-09-07 15:05:23 +00:00
Martin Kreichgauer
2aae802d2a Fix a typo in ssl.h.
Change-Id: I431c6e5b8f7de4663ba3db52f6fe0062caaf88ba
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2016-09-06 21:41:36 +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
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2016-09-01 22:22:54 +00:00
David Benjamin
bc61769e49 Update pinned revisions in util/bot.
Change-Id: Ieee80e5949e7f5cda77a643bae8fb1c521eb3587
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2016-09-01 19:23:06 +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
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2016-08-30 22:50:05 +00:00
David Benjamin
449c381971 Import NIST ECDSA verification tests.
Change-Id: Idaec86866c600b87cda662b1b31c864cb1d141ac
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2016-08-30 16:02:11 +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
David Benjamin
a6e86bc3dc Import NIST ECDSA signing tests.
These test vectors include the k value, so we can get a deterministic
test.

Change-Id: Ie3cb61a99203cd55b01f4835be7c32043309748d
Reviewed-on: https://boringssl-review.googlesource.com/10701
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2016-08-30 15:43:53 +00:00
David Benjamin
163c95691a Forbid EMS from changing during renegotation.
Changing parameters on renegotiation makes all our APIs confusing. This
one has no reason to change, so lock it down. In particular, our
preference to forbid Token Binding + renego may be overridden at the
IETF, even though it's insane. Loosening it will be a bit less of a
headache if EMS can't change.

https://www.ietf.org/mail-archive/web/unbearable/current/msg00690.html
claims that this is already in the specification and enforced by NSS. I
can't find anything to this effect in the specification. It just says
the client MUST disable renegotiation when EMS is missing, which is
wishful thinking. At a glance, NSS doesn't seem to check, though I could
be misunderstanding the code.

Nonetheless, locking this down is a good idea anyway. Accurate or not,
take the email as an implicit endorsement of this from Mozilla.

Change-Id: I236b05991d28bed199763dcf2f47bbfb9d0322d7
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2016-08-30 15:43:35 +00:00
David Benjamin
147f1c468c Simplify RC4 code and remove assembly.
This removes all but the generic C RC4 implementation. At this point we
want to optimize for size/simplicity rather than speed.

See also upstream's 3e9e810f2e047effb1056211794d2d12ec2b04e7 which
removed the RC4_CHUNK code and standardized on RC4_INDEX. A
since-removed comment says that it was implemented for "pre-21164a Alpha
CPUs don't have byte load/store instructions" and helps with SPARC and
MIPS.

This also removes all the manual loop unrolling.

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2016-08-30 15:32:31 +00:00
David Benjamin
8c2d53ad99 Import NIST ECDH test vectors.
This and the following commits will import NIST's ECC test vectors.
Right now all our tests pass if I make P-224 act like P-521, which is
kind of embarrassing. (Other curves are actually tested, but only
because runner.go tests them against BoGo.)

Change-Id: Id0b20451ebd5f10f1d09765a810ad140bea28fa0
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2016-08-30 15:32:22 +00:00
David Benjamin
9b7d836b05 Be -Wnewline-eof clean.
Change-Id: I85216184f9277ce0c0caae31e379b638683e28c5
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2016-08-29 19:15:19 +00:00
Matt Braithwaite
9c8c418853 Remove RC4 ciphersuites from TLS.
For now, they can be restored by compiling with -DBORINGSSL_RC4_TLS.

Of note, this means that `MEDIUM' is now empty.

Change-Id: Ic77308e7bd4849bdb2b4882c6b34af85089fe3cc
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2016-08-26 19:32:44 +00:00
David Benjamin
8aae8a126b Remove M_i2d_* and M_d2i_*.
Somehow I didn't notice these used i2d_ASN1_bytes and
d2i_ASN1_type_bytes when removing those. Fortunately the macros are also
removable so drop them too.

Change-Id: I2a7b198eab2d3811e5ced1f347597185b4697f8d
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2016-08-26 19:28:56 +00:00
David Benjamin
1db42fb3ca Clarify CBS/CBB with respect to high tag number form.
We may need to implement high tag number form someday. CBS_get_asn1 has
an unsigned output to allow for this, but CBB_add_asn1 takes a uint8_t
(I think this might be my fault). Fix that which also fixes a
-Wconversion warning.

Simply leaving room in tag representation will still cause troubles
because the class and constructed bits overlap with bits for tag numbers
above 31. Probably the cleanest option would be to shift them to the top
3 bits of a u32 and thus not quite match the DER representation. Then
CBS_get_asn1 and CBB_add_asn1 will internally munge that into the DER
representation and consumers may continue to write things like:

   tag_number | CBS_ASN1_CONTEXT_SPECIFIC

I haven't done that here, but in preparation for that, document that
consumers need to use the values and should refrain from assuming the
correspond to DER.

Change-Id: Ibc76e51f0bc3b843e48e89adddfe2eaba4843d12
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2016-08-26 17:48:48 +00:00
Adam Langley
a6cd185a54 Set verify_result, even on failure.
If code tries to inspect the verify result in the case of a failure then
it seems reasonable that the error code should be in there.

Change-Id: Ic32ac9d340c2c10a405a7b6580f22a06427f041d
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2016-08-26 17:47:40 +00:00
Adam Langley
008f081c63 Allow .arch directives with Clang.
Some, very recent, versions of Clang now support `.arch`. Allow them to
see these directives with BORINGSSL_CLANG_SUPPORTS_DOT_ARCH.

BUG=39

Change-Id: I122ab4b3d5f14502ffe0c6e006950dc64abf0201
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2016-08-26 17:45:49 +00:00
Adam Langley
81f433540e Don't crash when a session callback returns NULL.
4aa154e08f changed the code to assume that
a session callback will zero the |copy| out-arg before returning NULL.
In practice this doesn't always happen and we should be robust against
it.

Change-Id: I0fd14969df836e0fa4f68ded8648fea8094ff9d7
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2016-08-26 17:42:41 +00:00
Matt Braithwaite
07e7806177 runner: use 3DES instead of RC4 where possible.
To ease the removal of RC4, use 3DES in cases where RC4 is not required,
but is just a placeholder for "ciphersuite that works in SSLv3."

Change-Id: Ib459173e68a662986235b556f330a7e0e02759d7
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2016-08-24 20:27:49 +00:00
David Benjamin
c72e6f9c69 Fix off by 1 in ASN1_STRING_set()
(Imported from upstream's 061d6c25ba7cb0524756a872e92da1de2d494d68.)

Change-Id: I817c5919a48316401a028f6dbc16461e8599fe1d
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2016-08-24 04:40:39 +00:00
David Benjamin
311c2579f7 Declare SSL_R_BLOCK_CIPHER_PAD_IS_WRONG and SSL_R_NO_CIPHERS_SPECIFIED.
nginx consumes these error codes without #ifdefs. Continue to define
them for compatibility, even though we never emit them.

BUG=95

Change-Id: I1e991987ce25fc4952cc85b98ffa050a8beab92e
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2016-08-24 01:15:19 +00:00
David Benjamin
0fc37ef082 Fix a number of sigalg scope issues.
peer_sigalgs should live on SSL_HANDSHAKE. This both releases a little
bit of memory after the handshake is over and also avoids the bug where
the sigalgs get dropped if SSL_set_SSL_CTX is called at a bad time. See
also upstream's 14e14bf6964965d02ce89805d9de867f000095aa.

This only affects consumers using the old SNI callback and not
select_certificate_cb.

Add a test that the SNI callback works as expected. In doing so, add an
SSL_CTX version of the signing preferences API. This is a property of
the cert/key pair (really just the key) and should be tied to that. This
makes it a bit easier to have the regression test work with TLS 1.2 too.

I thought we'd fixed this already, but apparently not... :-/

BUG=95

Change-Id: I75b02fad4059e6aa46c3b05183a07d72880711b3
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2016-08-24 00:24:34 +00:00
Brian Smith
7bee853d18 Include |BN_MONT_CTX| construction in RSA verification speed test.
Change-Id: I30d6560156bedeac781b12c16a65cfede7891bb7
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2016-08-23 19:59:15 +00:00
David Benjamin
7c04075617 Rewrite BN_bn2dec.
958aaf1ea1, imported from upstream, had an
off-by-one error. Reproducing the failure is fairly easy as it can't
even serialize 1. See also upstream's
099e2968ed3c7d256cda048995626664082b1b30.

Rewrite the function completely with CBB and add a basic test.

BUG=chromium:639740

Change-Id: I41a91514c4bb9e83854824ed5258ffe4e49d9491
Reviewed-on: https://boringssl-review.googlesource.com/10540
Commit-Queue: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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2016-08-23 19:57:26 +00:00
David Benjamin
4c4ff02fe8 Fix bn_wexpand's documentation.
Change-Id: I15e243c9732f2d3ab77b2fa77e0c3c10d5c7f3af
Reviewed-on: https://boringssl-review.googlesource.com/10541
Reviewed-by: Adam Langley <agl@google.com>
2016-08-23 17:49:47 +00:00
David Benjamin
7c7d8313ab Trim a few extensions when min_version is TLS 1.3.
None of these extensions may be negotiated in TLS 1.3 and are otherwise
on by default. Make the future QUIC/TLS1.3 ClientHello a hair smaller.

Change-Id: I613c339d95470676c78f21fd29e888b7701692c6
Reviewed-on: https://boringssl-review.googlesource.com/10504
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-23 00:28:50 +00:00
David Benjamin
5c4e8571cc Fill in the curve ID for TLS 1.3.
Apparently we forgot to do this.

Change-Id: I348cf6d716ae888fddce69ba4801bf09446f5a72
Reviewed-on: https://boringssl-review.googlesource.com/10503
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-08-22 18:05:01 +00:00
David Benjamin
29e5cf7209 Remove SSL_SESSION_get_key_exchange_info.
Chromium has switched to better APIs.

Change-Id: I26209b3a03c6a0db1ddce2f1fc99c8750cf6e56a
Reviewed-on: https://boringssl-review.googlesource.com/10501
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-08-19 20:05:06 +00:00
Steven Valdez
cb96654404 Adding ARRAY_SIZE macro for getting the size of constant arrays.
Change-Id: Ie60744761f5aa434a71a998f5ca98a8f8b1c25d5
Reviewed-on: https://boringssl-review.googlesource.com/10447
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-19 19:30:39 +00:00
David Benjamin
04aa694363 Implement BORINGSSL_UNSAFE_FUZZER_MODE for TLS 1.3.
I'll hold on regenerating the transcripts until either the protocol has
stablized more or we're ready to start actually deploying some of this,
but we can get this in now.

Confirmed these #ifdef points are covered by tests:
- BadFinished-*-TLS13
- *-InvalidSignature-*-TLS13

BUG=79

Change-Id: I5f6b9d0f50ac33d5cc79688928fb3fdf6df845ae
Reviewed-on: https://boringssl-review.googlesource.com/10500
Reviewed-by: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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2016-08-19 19:11:34 +00:00
David Benjamin
0e95015aa5 RSA-PSS should work in TLS 1.2.
However, for now, we will only enable it if TLS 1.3 is offered.

BUG=85

Change-Id: I958ae0adeafee553dbffb966a6fa41f8a81cef96
Reviewed-on: https://boringssl-review.googlesource.com/10342
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-08-19 18:44:26 +00:00
David Benjamin
7aa31d68fc Remove ssl->verify_result.
Having two copies of this is confusing. This field is inherently tied to
the certificate chain, which lives on SSL_SESSION, so this should live
there too. This also wasn't getting reset correctly on SSL_clear, but
this is now resolved.

Change-Id: I22b1734a93320bb0bf0dc31faa74d77a8e1de906
Reviewed-on: https://boringssl-review.googlesource.com/10283
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-19 18:29:43 +00:00
David Benjamin
93d9743def Deprecate and no-op SSL_set_verify_result.
As documented by OpenSSL, it does not interact with session resumption
correctly:
https://www.openssl.org/docs/manmaster/ssl/SSL_set_verify_result.html

Sadly, netty-tcnative calls it, but we should be able to get them to
take it out because it doesn't do anything. Two of the three calls are
immediately after SSL_new. In OpenSSL and BoringSSL as of the previous
commit, this does nothing.

The final call is in verify_callback (see SSL_set_verify). This callback
is called in X509_verify_cert by way of X509_STORE_CTX_set_verify_cb.
As soon as X509_verify_cert returns, ssl->verify_result is clobbered
anyway, so it doesn't do anything.

Within OpenSSL, it's used in testdane.c. As far as I can tell, it does
not actually do a handshake and just uses this function to fake having
done one. (Regardless, we don't need to build against that.)

This is done in preparation for removing ssl->verify_result in favor of
session->verify_result.

Change-Id: I7e32d7f26c44f70136c72e58be05a3a43e62582b
Reviewed-on: https://boringssl-review.googlesource.com/10485
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
2016-08-19 16:24:09 +00:00
David Benjamin
46662482b8 Test resuming renewed sessions.
In TLS 1.3 draft 14, due to resumption using a different cipher, this
is actually not too hard to mess up. (In fact BoGo didn't quite get it
right.)

Fortunately, the new cipher suite negotiation in draft 15 should make
this reasonable again once we implement it. In the meantime, test it.

Change-Id: I2eb948eeaaa051ecacaa9095b66ff149582ea11d
Reviewed-on: https://boringssl-review.googlesource.com/10442
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-18 23:53:19 +00:00
Steven Valdez
32635b828f Add limit for consecutive KeyUpdate messages.
Change-Id: I2e1ee319bb9852b9c686f2f297c470db54f72279
Reviewed-on: https://boringssl-review.googlesource.com/10370
Reviewed-by: David Benjamin <davidben@google.com>
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2016-08-18 23:43:12 +00:00
David Benjamin
dd634ebebd s/nginx/NGINX/
Per Piotr, all caps is the proper rendering.

Change-Id: I783016a6ed7e29f49369fabbcfa49b66910e4954
Reviewed-on: https://boringssl-review.googlesource.com/10486
Reviewed-by: Piotr Sikora <piotrsikora@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-18 20:56:52 +00:00
Steven Valdez
54ed58e806 Forbid PKCS1 in TLS 1.3.
BUG=84

Change-Id: Ie5eaefddd161488996033de28c0ebd1064bb793d
Reviewed-on: https://boringssl-review.googlesource.com/10484
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
2016-08-18 20:51:01 +00:00
Adam Langley
37646838e9 Have |SSL_get_verify_result| return |X509_V_OK| when no client certificate is given.
9498e74 changed the default value of verify_result to an error. This
tripped up NGINX, which depends on a bug[1] in OpenSSL. netty-tcnative
also uses this behavior, though it currently isn't tripped up by 9498e74
because it calls |SSL_set_verify_result|. However, we would like to
remove |SSL_set_verify_result| and with two data points, it seems this
is behavior we must preserve.

This change sets |verify_result| to |X509_V_OK| when a) no client
certificate is requested or b) none is given and it's optional.

[1] See BUGS in https://www.openssl.org/docs/manmaster/ssl/SSL_get_verify_result.html

Change-Id: Ibd33660ae409bfe272963a8c39b7e9aa83c3d635
Reviewed-on: https://boringssl-review.googlesource.com/9067
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
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2016-08-18 20:37:10 +00:00