This was changed in draft-ietf-quic-tls-13 to use a codepoint from the
reserved range.
Change-Id: Ia3cda249a3f37bc244d5c8a7765ec34a5708c9ae
Reviewed-on: https://boringssl-review.googlesource.com/29464
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Update-Note: SSL_CTX_set_min_proto_version(SSL3_VERSION) now fails.
SSL_OP_NO_SSLv3 is now zero. Internal SSL3-specific "AEAD"s are gone.
Change-Id: I34edb160be40a5eea3e2e0fdea562c6e2adda229
Reviewed-on: https://boringssl-review.googlesource.com/29444
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This doesn't particularly matter since most clients don't typically
advertise both versions, but we should presumably prefer the newer one.
Change-Id: If636e446c6af2049fc5743eb5fef04b780b29af9
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This change adds an AES-GCM AEAD that enforces nonce uniqueness inside
the FIPS module, like we have for TLS 1.2. While TLS 1.3 has not yet
been mentioned in the FIPS 140 IG, we expect it to be in the next ~12
months and so are preparing for that.
Change-Id: I65a7d8196b08dc0033bdde5c844a73059da13d9e
Reviewed-on: https://boringssl-review.googlesource.com/29224
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The last libssl struct is now opaque! (Promote the SSL_MAX_* constants
as folks use them pretty frequently.)
Update-Note: SSL_SESSION is now opaque. I believe everything handles
this now.
Bug: 6
Change-Id: I8cd29d16173e4370f3341c0e6f0a56e00ea188e9
Reviewed-on: https://boringssl-review.googlesource.com/28964
Reviewed-by: Adam Langley <agl@google.com>
And since there are now 3 different points in the state machine where
a handback can occur, introduce an enum to describe them.
Change-Id: I41866214c39d27d1bbd965d28eb122c0e1f9902a
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Update-Note: This tweaks the SSL_shutdown behavior. OpenSSL's original
SSL_shutdown behavior was an incoherent mix of discarding the record and
rejecting it (it would return SSL_ERROR_SYSCALL but retrying the
operation would discard it). SSLeay appears to have intended to discard
it, so we previously "fixed" it actually discard.
However, this behavior is somewhat bizarre and means we skip over
unbounded data, which we typically try to avoid. If you are trying to
cleanly shutdown the TLS portion of your protocol, surely it is at a
point where additional data is a syntax error. I suspect I originally
did not realize that, because the discarded record did not properly
continue the loop, SSL_shutdown would appear as if it rejected the data,
and so it's unlikely anyone was relying on that behavior.
Discussion in https://github.com/openssl/openssl/pull/6340 suggests
(some of) upstream also prefers rejecting.
Change-Id: Icde419049306ed17eb06ce1a7e1ff587901166f3
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This change adds server-side support for compressed certificates.
(Although some definitions for client-side support are included in the
headers, there's no code behind them yet.)
Change-Id: I0f98abf0b782b7337ddd014c58e19e6b8cc5a3c2
Reviewed-on: https://boringssl-review.googlesource.com/27964
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This matches the OpenSSL 1.1.0 spelling. I'd thought we could hide
SSL_SESSION this pass, but I missed one test that messed with session
IDs!
Bug: 6
Change-Id: I84ea113353eb0eaa2b06b68dec71cb9061c047ca
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We have a successful TLS 1.3 deployment, in spite of non-compliant
middleboxes everywhere, so now let's get this optimization in. It would
have been nice to test with this from the beginning, but sadly we forgot
about it. Ah well. This shaves 63 bytes off the server's first flight,
and then another 21 bytes off the pair of NewSessionTickets.
So we'll more easily notice in case of anything catastrophic, tie this
behavior to draft 28.
Update-Note: This slightly tweaks our draft-28 behavior.
Change-Id: I4f176a919bf7181239d6ebb31e7870f12364e0f9
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If the callback returns an empty ALPN, we forget we negotiated ALPN at
all (bssl::Array does not distinguish null and empty). Empty ALPN
protocols are forbidden anyway, so reject these ahead of time.
Change-Id: I42f1fc4c843bc865e23fb2a2e5d57424b569ee99
Reviewed-on: https://boringssl-review.googlesource.com/28546
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It's conditioned in OpenSSL on client offer, not server accept.
Change-Id: Iae5483a33d9365258446ce0ae34132aeb4a92c66
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This is so Chromium can verify the session before offering it, rather
than doing it after the handshake (at which point it's too late to punt
the session) as we do today. This should, in turn, allow us to finally
verify certificates off a callback and order it correctly relative to
CertificateRequest in TLS 1.3.
(It will also order "correctly" in TLS 1.2, but this is useless. TLS 1.2
does not bind the CertificateRequest to the certificate at the point the
client needs to act on it.)
Bug: chromium:347402
Change-Id: I0daac2868c97b820aead6c3a7e4dc30d8ba44dc4
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Previously, we'd omitted OpenSSL's OCSP APIs because they depend on a
complex OCSP mechanism and encourage the the unreliable server behavior
that hampers using OCSP stapling to fix revocation today. (OCSP
responses should not be fetched on-demand on a callback. They should be
managed like other server credentials and refreshed eagerly, so
temporary CA outage does not translate to loss of OCSP.)
But most of the APIs are byte-oriented anyway, so they're easy to
support. Intentionally omit the one that takes a bunch of OCSP_RESPIDs.
The callback is benign on the client (an artifact of OpenSSL reading
OCSP and verifying certificates in the wrong order). On the server, it
encourages unreliability, but pyOpenSSL/cryptography.io depends on this.
Dcument that this is only for compatibility with legacy software.
Also tweak a few things for compatilibility. cryptography.io expects
SSL_CTX_set_read_ahead to return something, SSL_get_server_tmp_key's
signature was wrong, and cryptography.io tries to redefine
SSL_get_server_tmp_key if SSL_CTRL_GET_SERVER_TMP_KEY is missing.
Change-Id: I2f99711783456bfb7324e9ad972510be8a95e845
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Callers should not mutate these.
Update-Note: I believe I've fixed up everything. If I missed one, the
fix should be straightforward.
Change-Id: Ifbce4961204822f57502a0de33aaa5a2a08b026d
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Update-Note: Enabling TLS 1.3 now enables both draft-23 and draft-28
by default, in preparation for cycling all to draft-28.
Change-Id: I9405f39081f2e5f7049aaae8a9c85399f21df047
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Hopefully this is the last of it before we can hide the struct. We're
missing peer_sha256 accessors, and some test wants to mutate the ticket
in a test client.
Change-Id: I1a30fcc0a1e866d42acbc07a776014c9257f7c86
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gRPC builds on Debian Jessie, which has GCC 4.9.2, and builds with
-Wtype-limits, which makes it warn about code intended for 64-bit
systems when building on 32-bit systems.
We have tried to avoid these issues with Clang previously by guarding
with “sizeof(size_t) > 4”, but this version of GCC isn't smart enough to
figure that out.
Change-Id: I800ceb3891436fa7c81474ede4b8656021568357
Reviewed-on: https://boringssl-review.googlesource.com/28247
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We forgot to do this in our original implementation on general ecosystem
grounds. It's also mandated starting draft-26.
Just to avoid unnecessary turbulence, since draft-23 is doomed to die
anyway, condition this on our draft-28 implementation. (We don't support
24 through 27.)
We'd actually checked this already on the Go side, but the spec wants a
different alert.
Change-Id: I0014cda03d7129df0b48de077e45f8ae9fd16976
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This is done by adding two new tagged data types to the shim's
transcript: one for the serialized handoff, and another for the
serialized handback.
Then, the handshake driver in |TLSFuzzer| is modified to be able to
drive a handoff+handback sequence in the same way as was done for
testing: by swapping |BIO|s into additional |SSL| objects. (If a
particular transcript does not contain a serialized handoff, this is a
no-op.)
Change-Id: Iab23e4dc27959ffd3d444adc41d40a4274e83653
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Found by fuzzing.
Change-Id: I831f7869b16486eef7ac887ee199450e38461086
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Along the way, check the version against the cipher to make sure the
combination is possible.
(Found by fuzzing: a bad version trips an assert.)
Change-Id: Ib0a284fd5fd9b7ba5ceba63aa6224966282a2cb7
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(It complains that the comparison is always false with NDK r17 beta 2.)
Change-Id: I6b695fd0e86047f0c1e4267290e63db3184a958a
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https://boringssl-review.googlesource.com/27944 inadvertently caused
SHA256 and SHA384 aliases to be rejected in
SSL_CTX_set_strict_cipher_list. While this is the desired end state, in
case the removal needs to be reverted, we should probably defer this to
post-removal cleanup.
Otherwise we might update someone's "ALL:!SHA256" cipher string to
account for the removal, and then revert the removal underneath them.
Change-Id: Id516a27a2ecefb5871485d0ae18067b5bbb536bb
Reviewed-on: https://boringssl-review.googlesource.com/28004
Reviewed-by: Adam Langley <agl@google.com>
These are also not needed after the handshake.
Change-Id: I5de2d5cf18a3783a6c04c0a8fe311069fb51b939
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The TLS 1.3 client logic used ctx instead. This is all moot as
SSL_set_SSL_CTX on a client really wouldn't work, but we should be
consistent. Unfortunately, this moves moving the pointer back to SSL
from SSL_CONFIG.
Change-Id: I45f8241e16f499ad416afd5eceb52dc82af9c4f4
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All CBC ciphers in TLS are broken and insecure. TLS 1.2 introduced
AEAD-based ciphers which avoid their many problems. It also introduced
new CBC ciphers based on HMAC-SHA256 and HMAC-SHA384 that share the same
flaws as the original HMAC-SHA1 ones. These serve no purpose. Old
clients don't support them, they have the highest overhead of all TLS
ciphers, and new clients can use AEADs anyway.
Remove them from libssl. This is the smaller, more easily reverted
portion of the removal. If it survives a week or so, we can unwind a lot
more code elsewhere in libcrypto. This removal will allow us to clear
some indirect calls from crypto/cipher_extra/tls_cbc.c, aligning with
the recommendations here:
https://github.com/HACS-workshop/spectre-mitigations/blob/master/crypto_guidelines.md#2-avoid-indirect-branches-in-constant-time-code
Update-Note: The following cipher suites are removed:
- TLS_RSA_WITH_AES_128_CBC_SHA256
- TLS_RSA_WITH_AES_256_CBC_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
- TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
- TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
Change-Id: I7ade0fc1fa2464626560d156659893899aab6f77
Reviewed-on: https://boringssl-review.googlesource.com/27944
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Chrome needs to support renegotiation at TLS 1.2 + HTTP/1.1, but we're
free to shed the handshake configuration at TLS 1.3 or HTTP/2.
Rather than making config shedding implicitly disable renegotiation,
make the actual shedding dependent on a combination of the two settings.
If config shedding is enabled, but so is renegotiation (including
whether we are a client, etc.), leave the config around. If the
renegotiation setting gets disabled again after the handshake,
re-evaluate and shed the config then.
Bug: 123
Change-Id: Ie833f413b3f15b8f0ede617991e3fef239d4a323
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|SSL_CONFIG| is a container for bits of configuration that are
unneeded after the handshake completes. By default it is retained for
the life of the |SSL|, but it may be shed at the caller's option by
calling SSL_set_shed_handshake_config(). This is incompatible with
renegotiation, and with SSL_clear().
|SSL_CONFIG| is reachable by |ssl->config| and by |hs->config|. The
latter is always non-NULL. To avoid null checks, I've changed the
signature of a number of functions from |SSL*| arguments to
|SSL_HANDSHAKE*| arguments.
When configuration has been shed, setters that touch |SSL_CONFIG|
return an error value if that is possible. Setters that return |void|
do nothing.
Getters that request |SSL_CONFIG| values will fail with an |assert| if
the configuration has been shed. When asserts are compiled out, they
will return an error value.
The aim of this commit is to simplify analysis of split-handshakes by
making it obvious that some bits of state have no effects beyond the
handshake. It also cuts down on memory usage.
Of note: |SSL_CTX| is still reachable after the configuration has been
shed, and a couple things need to be retained only for the sake of
post-handshake hooks. Perhaps these can be fixed in time.
Change-Id: Idf09642e0518945b81a1e9fcd7331cc9cf7cc2d6
Bug: 123
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This is prefactoring for a coming change to the shim that will write
handoff and handback messages (which are serialized SSLConnection
objects) to the transcript.
This breaks the slightly tenuous ordering between the runner and the
shim. Fix the runner to wait until the shim has exited before
appending the transcript.
Change-Id: Iae34d28ec1addfe3ec4f3c77008248fe5530687c
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Chromium has some code which reaches into this field for memory
accounting.
This fixes a bug in doc.go where this line-wrapping confuses it. doc.go
needs a bit of a rewrite, but this is a bit better.
Change-Id: Ic9cc2c2fe9329d7bc366ccf91e0c9a92eae08ed2
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I don't think this lock is actually needed. If the process exited by the
time we call shim.Process.Kill(), then the test ultimately finished. If
not, wait() will return that the process died by a signal.
Change-Id: I668a86583aba16fd00e0cd05071acc13059a2c42
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Reviewed-by: Adam Langley <agl@google.com>
After e325c3f4712b23de688d2eea7d7549b65a610605, this typo bites and
causes SSL_CTX_get_extra_chain_certs to return an empty stack.
Change-Id: I6aa7093d1ca4f3ba0f520a644b14de5b3a3ccaa6
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This schism came up in passing again, and I realized we never added a
TLS-level test for this. Fix that.
Change-Id: I10f910bb5a975d6b3b73d99e7412ade35654fddb
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This too is connection-level state to be reset on SSL_clear.
Change-Id: I071c9431c28a7d0ff3eb20c679784d4aa4c236a5
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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
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It's hard to diagnose "20".
Change-Id: I57e8d0fb6e4937ddeca45b3645463ca0dc872ea6
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This reflects the change to add the key type into the constant. The old
constants are left around for now as legacy aliases and will be removed
later.
Change-Id: I67f1b50c01fbe0ebf4a2e9e89d3e7d5ed5f5a9d7
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Update-Note: I believe everything relying on this overload has since
been updated.
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These are connection state, so they should be reset on SSL_clear.
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Conscrypt need this function right now. They ought to be fixed up to not
need this but, in the meantime, this API is also provided by OpenSSL and
will clear one most consumer reaching into SSL_SESSION.
Bumping the API since Conscrypt often involves multi-sided stuff.
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In the handoff+handback case, bssl_shim.cc creates 3 |SSL| objects:
one to receive the ClientHello, one to receive the handoff, and a
third one to receive the handback.
Before 56986f9, only the first of these received any configuration.
Since that commit, all 3 of them receive the same configuration. That
means that the handback message no longer needs to serialize as many
things.
N.B. even before 56986f9, not all of the fields were necessary. For
example, there was no reason to serialize |conf_max_version| and
|conf_min_version| in the handback, so far as I can tell.
This commit is mechanical: it simply removes everything that doesn't
cause any tests to fail. In the long run, I'll need to carefully
check for two possibilities:
- Knobs that affect the handshake after the server's first message it
sent. These are troublesome because that portion of the handshake
may run on a different |SSL|, depending on whether the handback is
early or late.
- Getters that may be called post-handshake, and that callers may
reasonably expect to reflect the value that was used during
handshake.
(I'm not sure that either case exists!)
Change-Id: Ibf6e0be6609ad6e83ab50e69199e9b2d51e59a87
Reviewed-on: https://boringssl-review.googlesource.com/27364
Commit-Queue: Matt Braithwaite <mab@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
(Found by fuzzing: a zero value causes an infinite loop.)
Change-Id: I984fd88d85fb87616b5e806795c10334f4379744
Reviewed-on: https://boringssl-review.googlesource.com/27345
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>
Alessandro Ghedini
David Benjamin
Adam Langley
Matthew Braithwaite
Steven Valdez