Chrome uses the platform certificate verifier and thus cannot reliably
expect PSS signatures to work in all configurations. Add an API for the
consumer to inform BoringSSL of this ability. We will then adjust our
advertisements accordingly.
Note that, because TLS 1.2 does not have the signature_algorithms_cert
extension, turning off TLS 1.3 and using this API will stop advertising
RSA-PSS. I believe this is the correct behavior given the semantics of
that code point.
The tests check the various combinations here, as well as checking that
the peer never sends signature_algorithms_cert identical to
signature_algorithms.
Bug: 229
Change-Id: I8c33a93efdc9252097e3899425b49548fc42a93a
Reviewed-on: https://boringssl-review.googlesource.com/27488
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In this round, Google servers will echo the extension in order to test
the latency of both parties sending a PQ key-agreement message.
The extension is sent (and echoed) for both full and resumption
handshakes. This is intended to mirror the overhead of TLS 1.3 (even
when using TLS 1.2), as a resumption in TLS 1.3 still does a fresh key
agreement.
Change-Id: I9ad163afac4fd1d916f9c7359ec32994e283abeb
Reviewed-on: https://boringssl-review.googlesource.com/26185
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Change-Id: I2486dc810ea842c534015fc04917712daa26cfde
Update-Note: Now that tls13_experiment2 is gone, the server should remove the set_tls13_variant call. To avoid further churn, we'll make the server default for future variants to be what we'd like to deploy.
Reviewed-on: https://boringssl-review.googlesource.com/25104
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This adds support for sending the quic_transport_parameters
(draft-ietf-quic-tls) in ClientHello and EncryptedExtensions, as well as
reading the value sent by the peer.
Bug: boringssl:224
Change-Id: Ied633f557cb13ac87454d634f2bd81ab156f5399
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Update-Note: Token Binding can no longer be configured with the custom
extensions API. Instead, use the new built-in implementation. (The
internal repository should be all set.)
Bug: 183
Change-Id: I007523a638dc99582ebd1d177c38619fa7e1ac38
Reviewed-on: https://boringssl-review.googlesource.com/20645
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This extension will be used to measure the latency impact of potentially
sending a post-quantum key share by default. At this time it's purely
measuring the impact of the client sending the key share, not the server
replying with a ciphertext.
We could use the existing padding extension for this but that extension
doesn't allow the server to echo it, so we would need a different
extension in the future anyway. Thus we just create one now.
We can assume that modern clients will be using TLS 1.3 by the time that
PQ key-exchange is established and thus the key share will be sent in
all ClientHello messages. However, since TLS 1.3 isn't quite here yet,
this extension is also sent for TLS 1.0–1.2 ClientHellos. The latency
impact should be the same either way.
Change-Id: Ie4a17551f6589b28505797e8c54cddbe3338dfe5
Reviewed-on: https://boringssl-review.googlesource.com/24585
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Upgrade-Note: SSL_CTX_set_tls13_variant(tls13_experiment) on the server
should switch to SSL_CTX_set_tls13_variant(tls13_experiment2).
(Configuring any TLS 1.3 variants on the server enables all variants,
so this is a no-op. We're just retiring some old experiments.)
Change-Id: I60f0ca3f96ff84bdf59e1a282a46e51d99047462
Reviewed-on: https://boringssl-review.googlesource.com/23784
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Change-Id: Ic99a949258e62cad168c2c39507ca63100a8ffe5
Reviewed-on: https://boringssl-review.googlesource.com/23264
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We were only running a random subset of TLS 1.3 tests with variants and
let a lot of bugs through as a result.
- HelloRetryRequest-EmptyCookie wasn't actually testing what we were
trying to test.
- The second HelloRetryRequest detection needs tweaks in draft-22.
- The empty HelloRetryRequest logic can't be based on non-empty
extensions in draft-22.
- We weren't sending ChangeCipherSpec correctly in HRR or testing it
right.
- Rework how runner reads ChangeCipherSpec by setting a flag which
affects the next readRecord. This cuts down a lot of cases and works
correctly if the client didn't send early data. (In that case, we
don't flush CCS until EndOfEarlyData and runner deadlocks waiting for
the ChangeCipherSpec to arrive.)
Change-Id: I559c96ea3a8b350067e391941231713c6edb2f78
Reviewed-on: https://boringssl-review.googlesource.com/23125
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This introduces a wire change to Experiment2/Experiment3 over 0RTT, however
as there is never going to be a 0RTT deployment with Experiment2/Experiment3,
this is valid.
Change-Id: Id541d195cbc4bbb3df7680ae2a02b53bb8ae3eab
Reviewed-on: https://boringssl-review.googlesource.com/22744
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Change-Id: I46686aea9b68105cfe70a11db0e88052781e179c
Reviewed-on: https://boringssl-review.googlesource.com/22164
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The Java client implementation of the 3SHAKE mitigation incorrectly
rejects initial handshakes when all of the following are true:
1. The ClientHello offered a session.
2. The session was successfully resumed previously.
3. The server declines the session.
4. The server sends a certificate with a different SAN list than in the
previous session.
(Note the 3SHAKE mitigation is to reject certificates changes on
renegotiation, while Java's logic applies to initial handshakes as
well.)
The end result is long-lived Java clients break on some certificate
rotations. Fingerprint Java clients and decline all offered sessions.
This avoids (2) while still introducing new sessions to clear any
existing problematic sessions.
See also b/65323005.
Change-Id: Ib2b84c69b5ecba285ffb8c4d03de5626838d794e
Reviewed-on: https://boringssl-review.googlesource.com/20184
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Found with libFuzzer.
Bug: chromium:763097
Change-Id: I806bcfc714c0629ff7f725e37f4c0045d4ec7ac6
Reviewed-on: https://boringssl-review.googlesource.com/20105
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For historical reasons, TLS allows ServerHellos (and ClientHellos)
without extensions to omit the extensions fields entirely.
https://github.com/openssl/openssl/pull/4296 reports this is even
necessary for compatibility with extension-less clients. We continue to
do so, but add a test for it anyway.
Change-Id: I63c2e3a5f298674eb21952fca6914dad07d7c245
Reviewed-on: https://boringssl-review.googlesource.com/19864
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Due to SSL 3.0 legacy, TLS 1.0 through 1.2 allow ClientHello and
ServerHello messages to omit the extensions field altogether, rather
than write an empty field. We broke this in
https://boringssl-review.googlesource.com/c/17704/ when we needed to a
second ServerHello parsing path.
Fix this and add some regression tests to explicitly test both the
omitted and empty extensions ClientHello and ServerHello cases.
Bug: chromium:743218
Change-Id: I8297ba608570238e19f12ea44a9fe2fe9d881d28
Reviewed-on: https://boringssl-review.googlesource.com/17904
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
TLS 1.3 deployment is currently blocked by buggy middleboxes
throughout the ecosystem. As an experiment to better understand these bugs
and the problems they are causing, implement TLS 1.3 variants with
alternate encodings. These are still the same protocol, only encoded
slightly differently. We will use what we learn from these experiments to
guide the TLS 1.3 deployment strategy and proposals to the IETF, if any.
These experiments only target the basic 1-RTT TLS 1.3 handshake. Based on
what we learn from this experiment, we may try future variations to
explore 0-RTT and HelloRetryRequest.
When enabled, the server supports all TLS 1.3 variants while the client
is configured to use a particular variant.
Change-Id: I532411d1abc41314dc76acce0246879b754b4c61
Reviewed-on: https://boringssl-review.googlesource.com/17327
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Due to middlebox and ecosystem intolerance, short record headers are going to
be unsustainable to deploy.
BUG=119
Change-Id: I20fee79dd85bff229eafc6aeb72e4f33cac96d82
Reviewed-on: https://boringssl-review.googlesource.com/14044
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The SNI extension may be ACKed by the server. This is kind of pointless,
but make sure we cover these codepaths.
Change-Id: I14b25ab865dd6e35a30f11ebc9027a1518bbeed9
Reviewed-on: https://boringssl-review.googlesource.com/13633
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Change-Id: I38cd04fa40edde4e4dd31fdc16bbf92985430198
Reviewed-on: https://boringssl-review.googlesource.com/12702
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08b65f4e31 introduced a memory leak and
also got enums confused. Also fix a codepath that was missing an error
code.
Thanks to OSS-Fuzz which appears to have found it in a matter of hours.
Change-Id: Ia9e926c28a01daab3e6154d363d0acda91209a22
Reviewed-on: https://boringssl-review.googlesource.com/13104
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This adds support for setting 0-RTT mode on tickets minted by
BoringSSL, allowing for testing of the initial handshake knowledge.
BUG=76
Change-Id: Ic199842c03b5401ef122a537fdb7ed9e9a5c635a
Reviewed-on: https://boringssl-review.googlesource.com/12740
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As long as we still have this code, we should make sure it doesn't
regress.
Change-Id: I0290792aedcf667ec49b251d747ffbc141c0cec4
Reviewed-on: https://boringssl-review.googlesource.com/13053
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Upstream accidentally started rejecting server-sent point formats in
https://github.com/openssl/openssl/issues/2133. Our own test coverage
here is also lacking, so flesh it out.
Change-Id: I99059558bd28d3a540c9687649d6db7e16579d29
Reviewed-on: https://boringssl-review.googlesource.com/12979
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This extension will be used to test whether
https://github.com/tlswg/tls13-spec/pull/762 is deployable against
middleboxes. For simplicity, it is mutually exclusive with 0-RTT. If
client and server agree on the extension, TLS 1.3 records will use the
format in the PR rather than what is in draft 18.
BUG=119
Change-Id: I1372ddf7b328ddf73d496df54ac03a95ede961e1
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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'll never send cookies, but we'll echo them on request. Implement it
in runner as well and test.
BUG=98
Change-Id: Idd3799f1eaccd52ac42f5e2e5ae07c209318c270
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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
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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
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Change-Id: Ifcdbeab9291d1141605a09a1960702c792cffa86
Reviewed-on: https://boringssl-review.googlesource.com/11561
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Change-Id: I5d4fc0d3204744e93d71a36923469035c19a5b10
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BUG=77
Change-Id: If568412655aae240b072c29d763a5b17bb5ca3f7
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BUG=77
Change-Id: Id8c45e98c4c22cdd437cbba1e9375239e123b261
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Change-Id: I73f9fd64b46f26978b897409d817b34ec9d93afd
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This mirror's 2dc0204603 on the C side.
BUG=90
Change-Id: Iebb72df5a5ae98cb2fd8db519d973cd734ff05ea
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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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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
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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
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Change-Id: I998f69269cdf813da19ccccc208b476f3501c8c4
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Implemented in preparation for testing the C implementation. Tested
against itself.
BUG=74
Change-Id: Iec1b9ad22e09711fa4e67c97cc3eb257585c3ae5
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