The former has always worked. The latter is new to the revised
processing order.
Change-Id: I993d29ccaca091725524847695df4d1944b609cf
Reviewed-on: https://boringssl-review.googlesource.com/11848
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
This changes our resumption strategy. Before, we would negotiate ciphers
only on fresh handshakes. On resumption, we would blindly use whatever
was in the session.
Instead, evaluate cipher suite preferences on every handshake.
Resumption requires that the saved cipher suite match the one that would
have been negotiated anyway. If client or server preferences changed
sufficiently, we decline the session.
This is much easier to reason about (we always pick the best cipher
suite), simpler, and avoids getting stuck under old preferences if
tickets are continuously renewed. Notably, although TLS 1.2 ticket
renewal does not work in practice, TLS 1.3 will renew tickets like
there's no tomorrow.
It also means we don't need dedicated code to avoid resuming a cipher
which has since been disabled. (That dedicated code was a little odd
anyway since the mask_k, etc., checks didn't occur. When cert_cb was
skipped on resumption, one could resume without ever configuring a
certificate! So we couldn't know whether to mask off RSA or ECDSA cipher
suites.)
Add tests which assert on this new arrangement.
BUG=116
Change-Id: Id40d851ccd87e06c46c6ec272527fd8ece8abfc6
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This is in preparation for determining the cipher suite (which, in TLS
1.2, requires the certificate be known) before resumption.
Note this has caller-visible effects:
- cert_cb is now called whether resumption occurs or not. Our only
consumer which uses this as a server is Node which will require a
patch to fix up their mucking about with SSL_get_session. (But the
patch should be quite upstreamable. More 1.1.0-compatible and
generally saner.)
- cert_cb is now called before new_session_cb and dos_protection_cb.
BUG=116
Change-Id: I6cc745757f63281fad714d4548f23880570204b0
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This simplifies a little code around EMS and PSK KE modes, but requires
tweaking the SNI code.
The extensions that are more tightly integrated with the handshake are
still processed inline for now. It does, however, require an extra state
in 1.2 so the asynchronous session callback does not cause extensions to
be processed twice. Tweak a test enforce this.
This and a follow-up to move cert_cb before resumption are done in
preparation for resolving the cipher suite before resumption and only
resuming on match.
Note this has caller-visible effects:
- The legacy SNI callback happens before resumption.
- The ALPN callback happens before resumption.
- Custom extension ClientHello parsing callbacks also cannot depend on
resumption state.
- The DoS protection callback now runs after all the extension callbacks
as it is documented to be called after the resumption decision.
BUG=116
Change-Id: I1281a3b61789b95c370314aaed4f04c1babbc65f
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A BN_ULONG[P256_LIMBS] can't represent a negative number and
bn_set_words won't produce one. We only need to compare against P.
Change-Id: I7bd1c9e8c162751637459f23f3cfc56884d85864
Reviewed-on: https://boringssl-review.googlesource.com/12304
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
RT#4625
(Imported from upstream's e3057a57caf4274ea1fb074518e4714059dfcabf.)
Add a test in ec_test to cover the ecp_nistz256_points_mul change. Also
revise the low-level infinity tests to cover the changes in
ecp_nistz256_point_add. Upstream's 'infty' logic was also cleaned up to
be simpler and take advantage of the only cases where |p| is infinity.
Change-Id: Ie22de834bf79ecb6191e824ad9fc1bd6f9681b8b
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As a client, we must tolerate this to avoid interoperability failures
with allowed server behaviors.
BUG=117
Change-Id: I9c40a2a048282e2e63ab5ee1d40773fc2eda110a
Reviewed-on: https://boringssl-review.googlesource.com/12311
Reviewed-by: David Benjamin <davidben@google.com>
Draft 18 sadly loosens the requirements to only requiring the PRF hash
stay fixed.
BUG=117
Change-Id: Ic94d53fd9cabaee611fcf36b0071558075e10728
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This is generally much cleaner and makes it possible to implement the
more lax cipher matching in draft 18.
BUG=117
Change-Id: I595d7619d60bc92e598d75b43945286323c0b72b
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This is a no-op because all affected codepaths are either unreachable or
are fine because ssl_hs_error (intentionally, since C doesn't help us
any) aligns with zero. Still, fix these.
Change-Id: Ieba4e3eec3881a56b5ddcd32abdd2c9dda875eda
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It doesn't particular matter, but AcceptAnySession should only skip the
things that would cause us to note accept a ticket. ExpectTicketAge is
an assertion, not part of protocol logic. Accordingly, fix the text.
Change-Id: I3bea9c58f4d5f912308252ec8834f183287d632f
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The version check should run if AcceptAnyVersion is *not* set.
Change-Id: I4c137564f91a86cb5e6a26e09fd4670cce8f1dcb
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When debugging a flaky test, it's useful to be able to run a given test
over and over.
Change-Id: I1a7b38792215550b242eb8238214d873d41becb6
Reviewed-on: https://boringssl-review.googlesource.com/12301
Reviewed-by: David Benjamin <davidben@google.com>
The draft 18 implementation did not compute scts_requested correctly. As
a result, it always believed SCTs were requested. Fix this and add tests
for unsolicited OCSP responses and SCTs at all versions.
Thanks to Daniel Hirche for the report.
Change-Id: Ifc59c5c4d7edba5703fa485c6c7a4055b15954b4
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Thanks to Eric Rescorla for catching this.
Change-Id: Id0a024d7f705519cfe76d350e0ef2688dbd11a22
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Having that logic in two different places is a nuisance when we go to
add new checks like resumption stuff. Along the way, this adds missing
tests for the ClientHello cipher/session consistency check. (We'll
eventually get it for free once the cipher/resumption change is
unblocked, but get this working in the meantime.)
This also fixes a bug where the session validity checks happened in the
wrong order relative to whether tickets_supported or renew_ticket was
looked at. Fix that by lifting that logic closer to the handshake.
Change-Id: I3f4b59cfe01064f9125277dc5834e62a36e64aae
Reviewed-on: https://boringssl-review.googlesource.com/12230
Reviewed-by: Adam Langley <agl@google.com>
We were using a fully-qualified name for nearly everything anyway.
Change-Id: Ia32c68975ed4126feeab7b420f12b726ad6b89b3
Reviewed-on: https://boringssl-review.googlesource.com/12226
Reviewed-by: Adam Langley <agl@google.com>
The other field operations have an explicit _mont suffix to denote their
inputs and outputs are in the Montgomery domain, aside from
ecp_nistz256_neg which works either way. Do the same here.
Change-Id: I63741adaeba8140e29fb0b45dff72273e231add7
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The file is util-64.c in BoringSSL.
Change-Id: I51891103254ae1541ea4c30f92c41d5d47c2ba55
Reviewed-on: https://boringssl-review.googlesource.com/12223
Reviewed-by: Adam Langley <agl@google.com>
For the most part, this is with random test data which isn't
particularly good. But we'll be able to add more interesting test
vectors as they come up.
Change-Id: I9c50db7ac2c4bf978d4901000ab32e3642aea82b
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Addition was not preserving inputs' property of being fully reduced.
Thanks to Brian Smith for reporting this.
(Imported from upstream's b62b2454fadfccaf5e055a1810d72174c2633b8f and
d3034d31e7c04b334dd245504dd4f56e513ca115.)
See also this thread.
https://mta.openssl.org/pipermail/openssl-dev/2016-August/008179.html
Change-Id: I3731f949e2e2ef539dec656c58f1820cc09a56a6
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Commit-Queue: David Benjamin <davidben@google.com>
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This was removed a while ago. As of -18, the early data indication
extension is just a boolean.
Change-Id: I328b9abfafad326d4c2a3b5fe981af111f8401ad
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We missed that the TLS 1.3 code was inconsistent with the TLS 1.2 code.
Only on the server did we push an error code. But consistency between
client and server is probably worthwhile so, fix the 1.2 code to match
for now.
Change-Id: I17952c72048697dc66eacf0f144a66ced9cb3be8
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This is getting to be a nuisance to do by hand.
Change-Id: If3aa7c666c4cc0bf97615564f258ff740a561766
Reviewed-on: https://boringssl-review.googlesource.com/12281
Reviewed-by: David Benjamin <davidben@google.com>
Change-Id: I0767cd4801924170ce13b8143a9586485b8f78af
Reviewed-on: https://boringssl-review.googlesource.com/12280
Reviewed-by: Steven Valdez <svaldez@chromium.org>
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Change-Id: I07c4b67206440d169b314f24e1b3c1c697dda24f
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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
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BUG=112
Change-Id: I88ef17e32e33b091ff1e27b7950f88e1d48f9278
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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
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I always forget to update this when we add new certs.
Change-Id: Ib5ceeddd70934cfa763a80a3ed92b22d37be8726
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Reviewed-by: Steven Valdez <svaldez@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
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
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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
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It's recursedeps, not recurse_deps.
Change-Id: I2c5cb293c5928ef5202ee18db5541712e5b012e6
Reviewed-on: https://boringssl-review.googlesource.com/12235
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Change-Id: I0f085aed8bbb430b8d23ba2ac3f7aaa49816d785
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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
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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
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This is to allow for PSK binders to be munged into the ClientHello as part of
draft 18.
BUG=112
Change-Id: Ic4fd3b70fa45669389b6aaf55e61d5839f296748
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Change-Id: I0e1d79e85a2d20ab4105b81d39cdbbd692ba67da
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We don't support big-endian so this could only slow down whatever
platforms weren't listed in the #if.
Change-Id: Ie36f862663d947f591dd4896e6a2ab19122bbc0d
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The Poly1305 state defined in the header file is just a 512-byte buffer.
The vector code aligns to 64 bytes but the non-vector code did not.
Since we have lots of space to spare, this change causes the non-vector
code to also align to 64 bytes.
Change-Id: I77e26616a709e770d6eb23df47d9e292742625d7
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Some old assemblers can't cope with r0 in address. It's actually
sensible thing to do, because r0 is shunted to 0 in address arithmetic
and by refusing r0 assembler effectively makes you understand that.
(Imported from upstream's a54aba531327285f64cf13a909bc129e9f9d5970.)
This also pulls in a trailing whitespace fix from upstream's
609b0852e4d50251857dbbac3141ba042e35a9ae.
Change-Id: Ieec0bc8d24b98f86ce4fc9ee6ce5126d127cf452
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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
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The ASN1_GENERALIZEDTIME_adj() function leaks an ASN1_GENERALIZEDTIME
object on an error path.
(Imported from upstream's fe71bb3ad97ed01ccf92812891cc2bc3ef3dce76.)
Thanks to Jinguang Dong for pointing out the bug.
Change-Id: I2c14662bb03b0cf957bd277bda487f05f07e89e7
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(Imported from upstream's 2a7dd548a6f5d6f7f84a89c98323b70a2822406e and
9ebcbbba81eba52282df9ad8902f047e2d501f51.)
This is only in the ADX assembly codepath which we do not enable. See
$addx = 0 at the top of the file. Nonetheless, import the test vector
and fix since we still have the code in there.
Upstream's test vector only compares a*b against b*a. The expected
answer was computed using Python.
Change-Id: I3a21093978c5946d83f2d6f4f8399f69d78202cf
Reviewed-on: https://boringssl-review.googlesource.com/12186
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
