Change-Id: I3bc1e46fb94104c4ae31c1c98fa0d5a931e5f954
Reviewed-on: https://boringssl-review.googlesource.com/13974
Commit-Queue: Adam Langley <agl@google.com>
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The new APIs are SSL_CTX_set_strict_cipher_list() and
SSL_set_strict_cipher_list(). They have two motivations:
First, typos in cipher lists can go undetected for a long time, and
can have surprising consequences when silently ignored.
Second, there is a tendency to use superstition in the construction of
cipher lists, for example by "turning off" things that do not actually
exist. This leads to the corrosive belief that DEFAULT and ALL ought
not to be trusted. This belief is false.
Change-Id: I42909b69186e0b4cf45457e5c0bc968f6bbf231a
Reviewed-on: https://boringssl-review.googlesource.com/13925
Commit-Queue: Matt Braithwaite <mab@google.com>
Reviewed-by: Matt Braithwaite <mab@google.com>
I'm not sure why the SSL versions of these functions return int while
the SSL_CTX version returns void. It looks like this dates to
https://boringssl-review.googlesource.com/c/1491/, of which the initial
upload was an SSL_ctrl macro. I guess one of the ints got accidentally
preserved in conversion.
(No existing caller, aside from bssl_shim, checks the result.)
Change-Id: Id54309c1aa03462d520b9a45cdfdefdd2cdd1298
Reviewed-on: https://boringssl-review.googlesource.com/13866
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This makes sense to do if we are a client and initiate a renegotiation
at the same time as the server requesting one. Since we will never
initiate a renegotiation, this should not be necessary.
Change-Id: I5835944291fdb8dfcc4fed2ebf1064e91ccdbe6a
Reviewed-on: https://boringssl-review.googlesource.com/13825
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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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We sized the post-handshake message limit for the older zero-length
KeyUpdate and forgot to update it when it got larger.
Thanks to Matt Caswell for catching this.
Change-Id: I7d2189479e9516fbfb6c195dfa367794d383582c
Reviewed-on: https://boringssl-review.googlesource.com/13805
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In honor of CVE-2016-9244. Although that particular bug BoGo was already
testing since it uses 16 bytes here.
The empty session ID case is particularly worth testing to make sure we
don't get confused somewhere. RFC 5077 allows clients to offer tickets
with no session ID. This is absurd since the client then has no way of
detecting resumption except by lookahead. We'll never do this as a
client, but should handle it correctly as a server.
Change-Id: I49695d19f03c4efdef43749c07372d590a010cda
Reviewed-on: https://boringssl-review.googlesource.com/13740
Commit-Queue: David Benjamin <davidben@google.com>
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The Go side (thankfully not the C side) was not fully updated for the
exporter secret derivation being earlier at some point. Also TLS 1.2
upgrades the PRF hash for pre-1.2 ciphers to SHA-256, so make sure we
cover that.
Change-Id: Ibdf50ef500e7e48a52799ac75577822bc304a613
Reviewed-on: https://boringssl-review.googlesource.com/13663
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Change-Id: I471880d785c38123e038279f67348bf02b47d091
Reviewed-on: https://boringssl-review.googlesource.com/13662
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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: I878dfb9f5d3736c3ec0d5fa39052cca58932dbb7
Reviewed-on: https://boringssl-review.googlesource.com/12981
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Change-Id: I38cd04fa40edde4e4dd31fdc16bbf92985430198
Reviewed-on: https://boringssl-review.googlesource.com/12702
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The TLS 1.2 and 1.3 state machines do the exact same thing at the
beginning. Let them process the ClientHello extensions, etc., and
finalize the certificate in common code. Once we start picking
parameters, we begin to diverge. Everything before this point is
arguably part of setting up the configuration, which is
version-agnostic.
BUG=128
Change-Id: I293ea3087ecbc3267bd8cdaa011c98d26a699789
Reviewed-on: https://boringssl-review.googlesource.com/13562
Commit-Queue: David Benjamin <davidben@google.com>
Reviewed-by: Adam Langley <agl@google.com>
In TLS 1.2, resumption's benefits are more-or-less subsumed by False
Start. TLS 1.2 resumption lifetime is bounded by how much traffic we are
willing to encrypt without fresh key material, so the lifetime is short.
Renewal uses the same key, so we do not allow it to increase lifetimes.
In TLS 1.3, resumption unlocks 0-RTT. We do not implement psk_ke, so
resumption incorporates fresh key material into both encrypted traffic
(except for early data) and renewed tickets. Thus we are both more
willing to and more interested in longer lifetimes for tickets. Renewal
is also not useless. Thus in TLS 1.3, lifetime is bound separately by
the lifetime of a given secret as a psk_dhe_ke authenticator and the
lifetime of the online signature which authenticated the initial
handshake.
This change maintains two lifetimes on an SSL_SESSION: timeout which is
the renewable lifetime of this ticket, and auth_timeout which is the
non-renewable cliff. It also separates the TLS 1.2 and TLS 1.3 timeouts.
The old session timeout defaults and configuration apply to TLS 1.3, and
we define new ones for TLS 1.3.
Finally, this makes us honor the NewSessionTicket timeout in TLS 1.3.
It's no longer a "hint" in 1.3 and there's probably value in avoiding
known-useless 0-RTT offers.
BUG=120
Change-Id: Iac46d56e5a6a377d8b88b8fa31f492d534cb1b85
Reviewed-on: https://boringssl-review.googlesource.com/13503
Reviewed-by: Adam Langley <agl@google.com>
Fix this and add a test. Otherwise enabling TLS 1.3 will cause a server
to blow through its session cache.
Change-Id: I67edbc468faedfd94a6c30cf842af085a6543b50
Reviewed-on: https://boringssl-review.googlesource.com/13501
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Change-Id: I44202457841f06a899e140f78ae8afa7ac720283
Reviewed-on: https://boringssl-review.googlesource.com/12600
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Until we've gotten it fully working, we should not mint any of these
SSL_SESSIONs, to avoid constraining future versions of our client code.
Notably, if any of our TLS 1.3 clients today serialized sessions, we
would need to rev the serialization format. Without opting into 0-RTT, a
TLS 1.3 client will create SSL_SESSIONs tagged as 0-RTT-capable but
missing important fields (ALPN, etc.). When that serialized session
makes its way to a future version of our client code, it would disagree
with the server about the ALPN value stored in the ticket and cause
interop failures.
I believe the only client code enabling TLS 1.3 right now is Chrome, and
the window is small, so it should be fine. But fix this now before it
becomes a problem.
Change-Id: Ie2b109f8d158017a6f3b4cb6169050d38a66b31c
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Change-Id: Idc93fdca2f1c5c23e4ba48c4efed2edbad1e857b
Reviewed-on: https://boringssl-review.googlesource.com/12521
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It's not completely clear to me why select_cetificate_cb behaves the way it
does, however not only is it confusing, but it makes assumptions about the
application using BoringSSL (it's not always possible to implement custom
logic outside of the callbacks provided by libssl), that make this callback
somewhat useless.
Case in point, the callback can be used for changing min/max protocol versions
based on per-site policies, and select_certificate_cb is the only place where
SSL_set_min/max_proto_version() can be used (e.g. you can't call them in
cert_cb because it's too late), but the decision on the specific versions to
use might depend on configuration that needs retrieving asynchronously from
over the network, which requires re-running the callback multiple times.
Change-Id: Ia8e151b163628545373e7fd1f327e9af207478a6
Reviewed-on: https://boringssl-review.googlesource.com/13000
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
Before RFC 7539 we had a ChaCha20-Poly1305 cipher suite that had a 64/64
nonce/counter split (as DJB's original ChaCha20 did). RFC 7539 changed
that to 96/32 and we've supported both for some time.
This change removes the old version and the TLS cipher suites that used
it.
BUG=chromium:682816
Change-Id: I2345d6db83441691fe0c1ab6d7c6da4d24777849
Reviewed-on: https://boringssl-review.googlesource.com/13203
Reviewed-by: Adam Langley <agl@google.com>
This reverts commit def9b46801.
(I should have uploaded a new version before sending to the commit queue.)
Change-Id: Iaead89c8d7fc1f56e6294d869db9238b467f520a
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Before RFC 7539 we had a ChaCha20-Poly1305 cipher suite that had a 64/64
nonce/counter split (as DJB's original ChaCha20 did). RFC 7539 changed
that to 96/32 and we've supported both for some time.
This change removes the old version and the TLS cipher suites that used
it.
Change-Id: Icd9c2117c657f3aa6df55990c618d562194ef0e8
Reviewed-on: https://boringssl-review.googlesource.com/13201
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This gives coverage over needing to fragment something over multiple
records.
Change-Id: I2373613608ef669358d48f4e12f68577fa5a40dc
Reviewed-on: https://boringssl-review.googlesource.com/13101
Reviewed-by: Adam Langley <agl@google.com>
TLS 1.3 doesn't support renegotiation in the first place, but so callers
don't report TLS 1.3 servers as missing it, always report it as
(vacuously) protected against this bug.
BUG=chromium:680281
Change-Id: Ibfec03102b2aec7eaa773c331d6844292e7bb685
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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
Commit-Queue: David Benjamin <davidben@google.com>
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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
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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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The write path for TLS is going to need some work. There are some fiddly
cases when there is a write in progress. Start adding tests to cover
this logic.
Later I'm hoping we can extend this flag so it drains the unfinished
write and thus test the interaction of read/write paths in 0-RTT. (We
may discover 1-RTT keys while we're in the middle of writing data.)
Change-Id: Iac2c417e4b5e84794fb699dd7cbba26a883b64ef
Reviewed-on: https://boringssl-review.googlesource.com/13049
Reviewed-by: Adam Langley <agl@google.com>
Channel ID is already enabled on the SSL. This dates to
49c7af1c42 which converted an instance of
tlsext_channel_id_enabled_new to it, but tlsext_channel_id_enabled_new
meant "if Channel ID is enabled, use the new one", not "enable Channel
ID".
Thanks to Eric Rescorla for catching this.
Change-Id: I2d5a82b930ffcbe5527a62a9aa5605ebb71a6b9f
Reviewed-on: https://boringssl-review.googlesource.com/13042
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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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Change-Id: Ie4c566c29c20faac7a9a5e04c88503fc2e1ff4db
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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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We were only asserting on the shim-side error code.
Change-Id: Idc08c253a7723a2a7fd489da761a56c72f7a3b96
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It should probably have a TLS 1.3 in the name to be clear that's what
it's testing.
Change-Id: I50b5f503a8038715114136179bde83e7da064e9b
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There are no longer any consumers of these APIs.
These were useful back when the CBC vs. RC4 tradeoff varied by version
and it was worth carefully tuning this cutoff. Nowadays RC4 is
completely gone and there's no use in configuring these anymore.
To avoid invalidating the existing ssl_ctx_api corpus and requiring it
regenerated, I've left the entries in there. It's probably reasonable
for new API fuzzers to reuse those slots.
Change-Id: I02bf950e3828062341e4e45c8871a44597ae93d5
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The loop is getting a little deeply nested and hard to read.
Change-Id: I3a99fba54c2f352850b83aef91ab72d5d9aabfb8
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Also fix the error code. It's a missing extension, not an unexpected
one.
Change-Id: I48e48c37e27173f6d7ac5e993779948ead3706f2
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So we can report it cleanly out of DevTools, it should behave like
SSL_get_curve_id and be reported on resumption too.
BUG=chromium:658905
Change-Id: I0402e540a1e722e09eaebadf7fb4785d8880c389
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Also test that TLS 1.3 can be resumed at a different curve.
Change-Id: Ic58e03ad858c861958b7c934813c3e448fb2829c
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Nothing calls this anymore. DHE is nearly gone. This unblocks us from
making key_exchange_info only apply to the curve.
Change-Id: I3099e7222a62441df6e01411767d48166a0729b1
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This currently only works for certificates parsed from the network, but
if making several connections that share certificates, some KB of memory
might be saved.
BUG=chromium:671420
Change-Id: I1c7a71d84e1976138641f71830aafff87f795f9d
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This avoids needing a extra state around client certificates to avoid
calling the callbacks twice. This does, however, come with a behavior
change: configuring both callbacks won't work. No consumer does this.
(Except bssl_shim which needed slight tweaks.)
Change-Id: Ia5426ed2620e40eecdcf352216c4a46764e31a9a
Reviewed-on: https://boringssl-review.googlesource.com/12690
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Change-Id: Iaac633616a54ba1ed04c14e4778865c169a68621
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Change-Id: Ie947ab176d10feb709c6e135d5241c6cf605b8e8
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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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This was useful when we were transitioning NPN off in Chromium, but now
there are no callers remaining.
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