This is done in three different places.
Change-Id: I1e55a14c464b1953b3d4de22b50688082ea65129
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When writing tests and BoGo isn't available, it is useful to be able to
configure the set of signature algorithms accepted on the verify side.
Add an API for this.
Change-Id: Ic873189da7f8853e412acd68614df9d9a872a0c8
Reviewed-on: https://boringssl-review.googlesource.com/15125
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This only works at TLS 1.2 and above as, before TLS 1.2, there is no way
to advertise support for Ed25519 or negotiate the correct signature
algorithm. Add tests for this accordingly.
For now, this is disabled by default on the verifying side but may be
enabled per SSL_CTX. Notably, projects like Chromium which use an
external verifier may need changes elsewhere before they can enable it.
(On the signing side, we can assume that if the caller gave us an
Ed25519 certificate, they mean for us to use it.)
BUG=187
Change-Id: Id25b0a677dcbe205ddd26d8dbba11c04bb520756
Reviewed-on: https://boringssl-review.googlesource.com/14450
Commit-Queue: David Benjamin <davidben@google.com>
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Instead, extract it from the certificate, which is what everyone was
doing anyway. A follow-up change will take advantage of this cleanup to
deduplicate code between signing and verifying for which keys are good
for which signature algorithms.
BUG=188
Change-Id: Ic3f83a6477e8fa53e5e7233f4545f4d2c4b58d01
Reviewed-on: https://boringssl-review.googlesource.com/14565
Reviewed-by: Adam Langley <agl@google.com>
This is an unhelpfully generic name. Rename it to match SSL_ECDH_CTX.
Unqualified "public key" is typically assumed to be the certificate.
Change-Id: I8ba8c3f2bb1343d1c006845a1110e833451c5a56
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We received an external request to add an option to undo the check added
in 3e51757de2.
Change-Id: Ifdd4b07705f2fa3d781d775d5cd139ea72d36734
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This moves the early data switch to CERT to make this
|SSL_set_SSL_CTX|-proof.
Change-Id: Icca96e76636d87578deb24b2d507cabee7e46a4a
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Change-Id: I0e2e4166ad2c57e3192af058f23374f014a2fcf4
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This adds support on the server and client to accept data-less early
data. The server will still fail to parse early data with any
contents, so this should remain disabled.
BUG=76
Change-Id: Id85d192d8e0360b8de4b6971511b5e8a0e8012f7
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This shuffles a bit of the code around session resumption in TLS 1.3 to
make the async point cleaner to inject. It also fills in cipher and
tlsext_hostname more uniformly.
Filling in the cipher on resumption is a no-op as SSL_SESSION_dup
already copies it, but avoids confusion should we ever implement TLS
1.3's laxer cipher matching on the server. Not filling in
tlsext_hostname on resumption was an oversight; the relevant check isn't
whether we are resuming but whether we have a fresh SSL_SESSION to fill
things into.
Change-Id: Ic02eb079ff228ce4a4d3e0de7445e18cd367e8b2
Reviewed-on: https://boringssl-review.googlesource.com/14205
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This change adds support for setting an |SSL_TICKET_AEAD_METHOD| which
allows a caller to control ticket encryption and decryption to a greater
extent than previously possible and also permits asynchronous ticket
decryption.
This change only includes partial support: TLS 1.3 work remains to be
done.
Change-Id: Ia2e10ebb3257e1a119630c463b6bf389cf20ef18
Reviewed-on: https://boringssl-review.googlesource.com/14144
Commit-Queue: David Benjamin <davidben@google.com>
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This makes its purpose clearer. That the session cache is based on the
initial SSL_CTX is confusing (it's a remnant of OpenSSL's backwards
session resumption ordering), but we're probably stuck with it.
Relatedly, document SSL_set_SSL_CTX better.
Change-Id: I2832efc63f6c959c5424271b365825afc7eec5e4
Reviewed-on: https://boringssl-review.googlesource.com/14204
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
We'll measure this value to guide what tolerance to use in the 0-RTT
anti-replay mechanism. This also fixes a bug where we were previously
minting ticket_age_add-less tickets on the server. Add a check to reject
all those tickets.
BUG=113
Change-Id: I68e690c0794234234e0d0500b4b9a7f79aea641e
Reviewed-on: https://boringssl-review.googlesource.com/14068
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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
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This is the first part to fixing the SSL stack to be 2038-clean.
Internal structures and functions are switched to use OPENSSL_timeval
which, unlike timeval and long, are suitable for timestamps on all
platforms.
It is generally accepted that the year is now sometime after 1970, so
use uint64_t for the timestamps to avoid worrying about serializing
negative numbers in SSL_SESSION.
A follow-up change will fix SSL_CTX_set_current_time_cb to use
OPENSSL_timeval. This will require some coordinating with WebRTC.
DTLSv1_get_timeout is left alone for compatibility and because it stores
time remaining rather than an absolute time.
BUG=155
Change-Id: I1a5054813300874b6f29e348f9cd8ca80f6b9729
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The two non-trivial changes are:
1. The public API now queries it out of the session. There is a long
comment over the old field explaining why the state was separate, but
this predates EMS being forbidden from changing across resumption. It
is not possible for established_session and the socket to disagree on
EMS.
2. Since SSL_HANDSHAKE gets reset on each handshake, the check that EMS
does not change on renego looks different. I've reworked that function a
bit, but it should have the same effect.
Change-Id: If72e5291f79681381cf4d8ceab267f76618b7c3d
Reviewed-on: https://boringssl-review.googlesource.com/13910
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This lets us trim another two pointers of per-connection state.
Change-Id: I2145d529bc25b7e24a921d01e82ee99f2c98867c
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Recent changes added SSL-level setters to these APIs. Unfortunately,
this has the side effect of breaking SSL_set_SSL_CTX, which is how SNI
is typically handled. SSL_set_SSL_CTX is kind of a weird function in
that it's very sensitive to which of the hodge-podge of config styles is
in use. I previously listed out all the config styles here, but it was
long and unhelpful. (I counted up to 7.)
Of the various SSL_set_SSL_CTX-visible config styles, the sanest seems
to be to move it to CERT. In this case, it's actually quite reasonable
since they're very certificate-related.
Later we may wish to think about whether we can cut down all 7 kinds of
config styles because this is kinda nuts. I'm wondering we should do
CERT => SSL_CONFIG, move everything there, and make that be the same
structure that is dropped post-handshake (supposing the caller has
disavowed SSL_clear and renego). Fruit for later thought. (Note though
that comes with a behavior change for all the existing config.)
Change-Id: I9aa47d8bd37bf2847869e0b577739d4d579ee4ae
Reviewed-on: https://boringssl-review.googlesource.com/13864
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|SSL_SESSION_from_bytes| now takes an |SSL_CTX*|, from which it uses the
|X509_METHOD| and buffer pool. This is our API so we can do this.
This also requires adding an |SSL_CTX*| argument to |SSL_SESSION_new|
for the same reason. However, |SSL_SESSION_new| already has very few
callers (and none in third-party code that I can see) so I think we can
get away with this.
Change-Id: I1337cd2bd8cff03d4b9405ea3146b3b59584aa72
Reviewed-on: https://boringssl-review.googlesource.com/13584
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Change-Id: I98903df561bbf8c5739f892d2ad5e89ac0eb8e6f
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We already have some cases where the default is DECODE_ERROR and, rather
than have two defaults, just harmonise on that. (INTERNAL_ERROR might
make more sense in some cases, but we don't want to have to remember
what the default is in each case and nobody really cares what the actual
value is anyway.)
Change-Id: I28007898e8d6e7415219145eb9f43ea875028ab2
Reviewed-on: https://boringssl-review.googlesource.com/13720
Reviewed-by: Adam Langley <agl@google.com>
Right now the only way to set an SCT list is the per-context function
SSL_CTX_set_signed_cert_timestamp_list. However this assumes that all the
SSLs generated from a SSL_CTX share the same SCT list, which is wrong.
In order to avoid memory duplication in case SSL_CTX has its own list, a
CRYPTO_BUFFER is used for both SSL_CTX and SSL.
Change-Id: Id20e6f128c33cf3e5bff1be390645441be6518c6
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ssl_get_new_session would stash a copy of the configured hostname
into the SSL_SESSION on the server. Servers have no reason to
configuring that anyway, but, if one did, we'd leak when filling in
the client-supplied SNI later.
Remove this code and guard against this by remembering to OPENSSL_free
when overwriting that field (although it should always be NULL).
Reported-By: Robert Swiecki <swiecki@google.com>
Change-Id: Ib901b5f82e5cf818060ef47a9585363e05dd9932
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This resolves a TODO, trims per-connection memory, and makes more sense.
These masks have nothing to do with certificate configuration.
Change-Id: I783e6158e51f58cce88e3e68dfa0ed965bdc894c
Reviewed-on: https://boringssl-review.googlesource.com/13368
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Change-Id: Ifc28887cbf91c7a80bdaf56e3bf80b2f8cfa7d53
Reviewed-on: https://boringssl-review.googlesource.com/13260
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TLS 1.3 forbids warning alerts, and sending these is a bad idea. Per RFC
6066:
If the server understood the ClientHello extension but
does not recognize the server name, the server SHOULD take one of two
actions: either abort the handshake by sending a fatal-level
unrecognized_name(112) alert or continue the handshake. It is NOT
RECOMMENDED to send a warning-level unrecognized_name(112) alert,
because the client's behavior in response to warning-level alerts is
unpredictable.
The motivation is to cut down on the number of places where we send
non-closing alerts. We can't remove them yet (SSL 3.0 and TLS 1.3 draft
18 need to go), but eventually this can be a simplifying assumption.
Already this means DTLS never sends warning alerts, which is good
because DTLS can't retransmit them.
Change-Id: I577a1eb9c23e66d28235c0fbe913f00965e19486
Reviewed-on: https://boringssl-review.googlesource.com/13221
Reviewed-by: Adam Langley <agl@google.com>
This doesn't do anything useful. Every caller either never sets the
callback as a client or goes out of their way to filter out clients in
the callback.
Change-Id: I6f07d000a727f9ccba080f812e6b8e7a38e04350
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These are no longer needed.
Change-Id: I909f7d690f57dafcdad6254948b5683757da69f4
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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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Most C standard library functions are undefined if passed NULL, even
when the corresponding length is zero. This gives them (and, in turn,
all functions which call them) surprising behavior on empty arrays.
Some compilers will miscompile code due to this rule. See also
https://www.imperialviolet.org/2016/06/26/nonnull.html
Add OPENSSL_memcpy, etc., wrappers which avoid this problem.
BUG=23
Change-Id: I95f42b23e92945af0e681264fffaf578e7f8465e
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This dates to
62d05888d1
which intended to be removed in a later Android release once X25519 was
added. That has since happened.
This intentionally leaves the P-521 hooked up for now. Detaching it
completely is a more aggressive change (since it's slightly tied up with
SHA-512) that should wait until removing ECDSA+SHA512 has stuck in Chrome.
Change-Id: I04553c3eddf33a13b6e3e9a6e7ac4c4725676cb0
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The only accessor for this field is the group/curve ID. Switch to only
storing that so no cipher checks are needed to interpret it. Instead,
ignore older values at parse time.
Change-Id: Id0946d4ac9e7482c69e64cc368a9d0cddf328bd3
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Right now the only way to set an OCSP response is SSL_CTX_set_ocsp_response
however this assumes that all the SSLs generated from a SSL_CTX share the
same OCSP response, which is wrong.
This is similar to the OpenSSL "function" SSL_get_tlsext_status_ocsp_resp,
the main difference being that this doesn't take ownership of the OCSP buffer.
In order to avoid memory duplication in case SSL_CTX has its own response,
a CRYPTO_BUFFER is used for both SSL_CTX and SSL.
Change-Id: I3a0697f82b805ac42a22be9b6bb596aa0b530025
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size_t at the public API, uint8_t on the SSL structs since everything
fits in there comfortably.
Change-Id: I837c3b21e04e03dfb957c1a3e6770300d0b49c0b
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There is no need to retain it beyond this point.
Change-Id: Ib5722ab30fc013380198b1582d1240f0fe0aa770
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Reviewed-by: Adam Langley <agl@google.com>
This was useful when we were transitioning NPN off in Chromium, but now
there are no callers remaining.
Change-Id: Ic619613d6d475eea6bc258c4a90148f129ea4a81
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It's our ClientHello representation. May as well name it accordingly.
Also switch away from calling the variable name ctx as that conflicts
with SSL_CTX.
Change-Id: Iec0e597af37137270339e9754c6e08116198899e
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The remaining direct accesses are in functions which expect to be called
in and out of the handshake. Accordingly, they are NULL-checked.
Change-Id: I07a7de6bdca7b6f8d09e22da11b8863ebf41389a
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Change-Id: I84a8ff1d717f3291403f6fc49668c84f89b910da
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Change-Id: Id8543a88929091eb004a5205a30b483253cdaa25
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This takes care of many of the explicit ssl->s3->hs accesses.
Change-Id: I380fae959f3a7021d6de9d19a4ca451b9a0aefe5
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Although we ignore all but the first identity, keep clients honest by
parsing the whole thing. Also explicitly check that the binder and
identity counts match.
Change-Id: Ib9c4caae18398360f3b80f8db1b22d4549bd5746
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BUG=101
Change-Id: Ia1edbccee535b0bc3a0e18465286d5bcca240035
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Since the printed format for errors uses colons to separate different
parts of the error message, this was confusing.
Change-Id: I4742becec2bcb56ad8dc2fdb9a3bb23e4452d1b2
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We do not change ALPN on renego, so the value should carry over and not
be cleared.
Change-Id: Id54a083945542b4457d9c2787f0fe7c30239b76f
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If the function fails, it's an internal_error.
Change-Id: I4b7cf7a6ca2527f04b708303ab1bc71df762b55b
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It doesn't need to be exported out of t1_lib.c.
Change-Id: I000493e1e330457051da1719ca9f8152a4ff845a
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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
Reviewed-on: https://boringssl-review.googlesource.com/11845
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
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
Reviewed-on: https://boringssl-review.googlesource.com/12305
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>
