On reflection, I think we'll need to note whether dummy PQ padding was
echoed on a given connection. Otherwise measurements in Chrome will be
mixed with cases where people have MITM proxies that ignored the
extension, or possibly Google frontends that haven't been updated.
Therefore this change will be used to filter latency measurements in
Chrome to only include those where the extension was echoed and we'll
measure at levels of 1 byte (for control), 400 bytes, and 1100 bytes.
This also makes it an error if the server didn't echo an extension of
the same length as was sent.
Change-Id: Ib2a0b29cfb8719a75a28f3cf96710c57d88eaa68
Reviewed-on: https://boringssl-review.googlesource.com/26284
Commit-Queue: Adam Langley <agl@google.com>
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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
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
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SSLv3_method, SSLv3_client_method, and SSLv3_server_method produce
SSL_CTXs which fail every handshake. They appear no longer necessary for
compatibility, so remove them.
SSLv3 is still accessible to callers who explicitly re-enable SSLv3 on a
TLS_method, but that will be removed completely later this year.
Meanwhile, clear out a weird hack we had here.
Update-Note: I believe there are no more callers of these functions. Any
that were were already non-functional as these methods haven't been
unable to handshake for a while now.
Change-Id: I622f785b428ab0ceab77b5a9db05b2b0df28145a
Reviewed-on: https://boringssl-review.googlesource.com/26004
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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We don't advertise compressed coordinates (and point format negotiation
was deprecated in TLS 1.3), so reject them. Both Internet Explorer and
Firefox appear to reject them already.
Later I hope to add an easier to use ECDH API that acts on bytes, not
EC_POINT. This clears the way for that API to only accept uncompressed
coordinates. Compressed coordinates never got deployed over NIST curves,
for better or worse. At this point, there is no sense in changing that
as new protocols should use curve25519.
Change-Id: Id2f1be791ddcf155d596f4eb0b79351766c5cdab
Reviewed-on: https://boringssl-review.googlesource.com/26024
Commit-Queue: David Benjamin <davidben@google.com>
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The private key callback may not push one of its own (it's possible to
register a custom error library and whatnot, but this is tedious). If
the callback does not push any, we report SSL_ERROR_SYSCALL. This is not
completely wrong, as "syscall" really means "I don't know, something you
gave me, probably the BIO, failed so I assume you know what happened",
but most callers just check errno. And indeed cert_cb pushes its own
error, so this probably should as well.
Update-Note: Custom private key callbacks which push an error code on
failure will report both that error followed by
SSL_R_PRIVATE_KEY_OPERATION_FAILED. Callbacks which did not push any
error will switch from SSL_ERROR_SYSCALL to SSL_ERROR_SSL with
SSL_R_PRIVATE_KEY_OPERATION_FAILED.
Change-Id: I7e90cd327fe0cbcff395470381a3591364a82c74
Reviewed-on: https://boringssl-review.googlesource.com/25544
Reviewed-by: Adam Langley <agl@google.com>
Split handshakes allows the handshaking of a TLS connection to be
performed remotely. This encompasses not just the private-key and ticket
operations – support for that was already available – but also things
such as selecting the certificates and cipher suites.
The the comment block in ssl.h for details. This is highly experimental
and will change significantly before its settled.
Change-Id: I337bdfa4c3262169e9b79dd4e70b57f0d380fcad
Reviewed-on: https://boringssl-review.googlesource.com/25387
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Mono's legacy TLS 1.0 stack, as a server, does not implement any form of
resumption, but blindly echos the ClientHello session ID in the
ServerHello for no particularly good reason.
This is invalid, but due to quirks of how our client checked session ID
equality, we only noticed on the second connection, rather than the
first. Flaky failures do no one any good, so break deterministically on
the first connection, when we realize something strange is going on.
Bug: chromium:796910
Change-Id: I1f255e915fcdffeafb80be481f6c0acb3c628846
Reviewed-on: https://boringssl-review.googlesource.com/25424
Commit-Queue: Steven Valdez <svaldez@google.com>
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NIAP requires that the TLS KDF be tested by CAVP so this change moves
the PRF into crypto/fipsmodule/tls and adds a test harness for it. Like
the KAS tests, this is only triggered when “-niap” is passed to
run_cavp.go.
Change-Id: Iaa4973d915853c8e367e6106d829e44fcf1b4ce5
Reviewed-on: https://boringssl-review.googlesource.com/24666
Reviewed-by: Adam Langley <agl@google.com>
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
Commit-Queue: Adam Langley <agl@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
The language of RFC 5246 is "A certificate has expired or is not
currently valid", which sounds to me like |certificate_expired| should
pertain to any case where the current time is outside the
certificate's validity period.
Along the way, group the |unknown_ca| errors together.
Change-Id: I92c1fe3fc898283d0c7207625de36662cd0f784e
Reviewed-on: https://boringssl-review.googlesource.com/24624
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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CMake targets are visible globally but gtest_main has boringssl-specific
behavior that isn't appropriate for general use.
This change makes it possible to use boringssl and abseil-cpp in the
same project (since abseil-cpp expects gtest_main to exist and be useful
for its own tests).
Change-Id: Icc81c11b8bb4b1e21cea7c9fa725b6c082bd5369
Reviewed-on: https://boringssl-review.googlesource.com/24604
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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This function maps |X509_V_ERR_*| to SSL alarm codes. It's used
internally when certs are verified with X509_verify_cert(), and is
helpful to callers who want to call that function, but who also want
to report its errors in a less implementation-dependent way.
Change-Id: I2900cce2eb631489f0947c317beafafd3ea57a75
Reviewed-on: https://boringssl-review.googlesource.com/24564
Commit-Queue: Matt Braithwaite <mab@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
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TLS 1.3 includes a server-random-based anti-downgrade signal, as a
workaround for TLS 1.2's ServerKeyExchange signature failing to cover
the entire handshake. However, because TLS 1.3 draft versions are each
doomed to die, we cannot deploy it until the final RFC. (Suppose a
draft-TLS-1.3 client checked the signal and spoke to a final-TLS-1.3
server. The server would correctly negotiate TLS 1.2 and send the
signal. But the client would then break. An anologous situation exists
with reversed roles.)
However, it appears that Cisco devices have non-compliant TLS 1.2
implementations[1] and copy over another server's server-random when
acting as a TLS terminator (client and server back-to-back).
Hopefully they are the only ones doing this. Implement a
measurement-only version with a different value. This sentinel must not
be enforced, but it will tell us whether enforcing it will cause
problems.
[1] https://www.ietf.org/mail-archive/web/tls/current/msg25168.html
Bug: 226
Change-Id: I976880bdb2ef26f51592b2f6b3b97664342679c8
Reviewed-on: https://boringssl-review.googlesource.com/24284
Commit-Queue: David Benjamin <davidben@google.com>
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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
Commit-Queue: Steven Valdez <svaldez@google.com>
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Reviewed-by: David Benjamin <davidben@google.com>
It's misnamed but, more importantly, doesn't do anything because the
test client isn't sending early data to begin with. We really need to
make these tests less error-prone to write. With this fix, the test
actually notices if we remove the server-side 0-RTT check.
Also remove MaxEarlyDataSize from the other server tests which
erroneously set it. Any test with sets that was likely copy-and-pasted
incorrectly.
Change-Id: Idc24bc1590e0316946022341185285418ab8c77b
Reviewed-on: https://boringssl-review.googlesource.com/23944
Commit-Queue: Steven Valdez <svaldez@google.com>
Reviewed-by: Steven Valdez <svaldez@google.com>
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We can probably do this globally at this point since the cipher
requirements are much more restrict than they were in the beginning.
(Firefox, in particular, has done so far a while.) For now add a flag
since some consumer wanted this.
I'll see about connecting it to a Chrome field trial after our breakage
budget is no longer reserved for TLS 1.3.
Change-Id: Ib61dd5aae2dfd48b56e79873a7f3061a7631a5f8
Reviewed-on: https://boringssl-review.googlesource.com/23725
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
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After much procrastinating, we finally moved Chromium to the new stuff.
We can now delete this. This is a breaking change for
SSL_PRIVATE_KEY_METHOD consumers, but it should be trivial (remove some
unused fields in the struct). I've bumped BORINGSSL_API_VERSION to ease
any multi-sided changes that may be needed.
Change-Id: I9fe562590ad938bcb4fcf9af0fadeff1d48745fb
Reviewed-on: https://boringssl-review.googlesource.com/23224
Commit-Queue: David Benjamin <davidben@google.com>
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Reviewed-by: Steven Valdez <svaldez@google.com>
Adam Langley