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Change-Id: I7dc264f7e29b3ba8be4c717583467edf71bf8dd9
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RAND_pseudo_bytes just calls RAND_bytes now and only returns 0 or 1. Switch all
callers within the library call the new one and use the simpler failure check.
This fixes a few error checks that no longer work (< 0) and some missing ones.
Change-Id: Id51c79deec80075949f73fa1fbd7b76aac5570c6
Reviewed-on: https://boringssl-review.googlesource.com/2621
Reviewed-by: Adam Langley <agl@google.com>
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This makes SSLv23_method go through DTLS_ANY_VERSION's version negotiation
logic. This allows us to get rid of duplicate ClientHello logic. For
compatibility, SSL_METHOD is now split into SSL_PROTOCOL_METHOD and a version.
The legacy version-locked methods set min_version and max_version based this
version field to emulate the original semantics.
As a bonus, we can now handle fragmented ClientHello versions now.
Because SSLv23_method is a silly name, deprecate that too and introduce
TLS_method.
Change-Id: I8b3df2b427ae34c44ecf972f466ad64dc3dbb171
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Amend the version negotiation tests to test this new spelling of max_version.
min_version will be tested in a follow-up.
Change-Id: Ic4bfcd43bc4e5f951140966f64bb5fd3e2472b01
Reviewed-on: https://boringssl-review.googlesource.com/2583
Reviewed-by: Adam Langley <agl@google.com>
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SSL3_ENC_METHOD will remain version-specific while SSL_METHOD will become
protocol-specific. This finally removes all the version-specific portions of
SSL_METHOD but the version tag itself.
(SSL3_ENC_METHOD's version-specific bits themselves can probably be handled by
tracking a canonicalized protocol version. It would simplify version
comparisons anyway. The one catch is SSLv3 has a very different table. But
that's a cleanup for future. Then again, perhaps a version-specific method
table swap somewhere will be useful later for TLS 1.3.)
Much of this commit was generated with sed invocation:
s/method->ssl3_enc/enc_method/g
Change-Id: I2b192507876aadd4f9310240687e562e56e6c0b1
Reviewed-on: https://boringssl-review.googlesource.com/2581
Reviewed-by: Adam Langley <agl@google.com>
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Now SSLv23 and DTLS_ANY_VERSION share version-related helper functions.
ssl3_get_method is temporary until the method switch is no longer necessary.
Put them all together so there's one place to refactor them when we add a new
version or implement min_version/max_version controls.
Change-Id: Ic28a145cad22db08a87fdb854480b22886c451c6
Reviewed-on: https://boringssl-review.googlesource.com/2580
Reviewed-by: Adam Langley <agl@google.com>
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Missed this one. It requires that we be able to change an SSL_METHOD after the
after, which complicates compiling the version locking into min_version /
max_version configurations.
Change-Id: I24ba54b7939360bbfafe3feb355a65840bda7611
Reviewed-on: https://boringssl-review.googlesource.com/2579
Reviewed-by: Adam Langley <agl@google.com>
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SSL_ST_BEFORE isn't a possible state anymore. It seems this state meant the
side wasn't known, back in the early SSLeay days. Now upstream guesses
(sometimes incorrectly with generic methods), and we don't initialize until
later. SSL_shutdown also doesn't bother to call ssl3_shutdown at all if the
side isn't initialized and SSL_ST_BEFORE isn't the uninitialized state, which
seems a much more sensible arrangement.
Likewise, because bare SSL_ST_BEFOREs no longer exist, SSL_in_init implies
SSL_in_before and there is no need to check both.
Change-Id: Ie680838b2f860b895073dabb4d759996e21c2824
Reviewed-on: https://boringssl-review.googlesource.com/2564
Reviewed-by: Adam Langley <agl@google.com>
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There's an undefined one not used anywhere. The others ought to be const. Also
move the forward declaration to ssl.h so we don't have to use the struct name.
Change-Id: I76684cf65255535c677ec19154cac74317c289ba
Reviewed-on: https://boringssl-review.googlesource.com/2561
Reviewed-by: Adam Langley <agl@google.com>
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The ClientHello record is padded to 1024 bytes when
fastradio_padding is enabled. As a result, the 3G cellular radio
is fast forwarded to DCH (high data rate) state. This mechanism
leads to a substantial redunction in terms of TLS handshake
latency, and benefits mobile apps that are running on top of TLS.
Change-Id: I3d55197b6d601761c94c0f22871774b5a3dad614
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It just inserts extra flushes everywhere and isn't used.
Change-Id: I082e4bada405611f4986ba852dd5575265854036
Reviewed-on: https://boringssl-review.googlesource.com/2456
Reviewed-by: Adam Langley <agl@google.com>
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first_packet is a temporary connection-global flag set for the duration of some
call and then queried from other code. This kind of logic is too difficult to
reason through. It also incorrectly treats renegotiate ClientHellos as
pre-version-negotiation records. This eliminates the need to query
enc_write_ctx (which wasn't EVP_AEAD-aware anyway).
Instead, take a leaf from Go TLS's book and add a have_version bit. This is
placed on s->s3 as it is connection state; s->s3 automatically gets reset on
SSL_clear while s doesn't.
This new flag will also be used to determine whether to do the V2ClientHello
sniff when the version-locked methods merge into SSLv23_method. It will also
replace needing to condition s->method against a dummy DTLS_ANY_VERSION value
to determine whether DTLS version negotiation has happened yet.
Change-Id: I5c8bc6258b182ba4ab175a48a84eab6d3a001333
Reviewed-on: https://boringssl-review.googlesource.com/2442
Reviewed-by: Adam Langley <agl@google.com>
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If SSL_clear is called before SSL_set_{connect,accept}_state (as SSL_new does
internally), s->state will get set prematurely. Likewise, s->server is set
based on the method's ssl_accept hook, but client SSL's may be initialized from
a generic SSL_METHOD too.
Since we can't easily get rid of the generic SSL_METHODs, defer s->state and
s->server initialization until the side is known.
Change-Id: I0972e17083df22a3c09f6f087011b54c699a22e7
Reviewed-on: https://boringssl-review.googlesource.com/2439
Reviewed-by: Adam Langley <agl@google.com>
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It's redundant with s->server.
Change-Id: Idb4ca44618477b54f3be5f0630f0295f0708b0f4
Reviewed-on: https://boringssl-review.googlesource.com/2438
Reviewed-by: Adam Langley <agl@google.com>
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s->server's value isn't final until SSL_connect or SSL_accept is called when
using the generic SSLv23_method or DTLS_method rather than the version-locked
ones. This makes the tests pass if bssl_shim uses those methods.
It would be nicer if the generic methods were gone and an SSL* could know from
creation which half it's destined for. Unfortunately, there's a lot of code
that uses those generic methods, so we probably can't get rid of them. If they
have to stay, it seems better to standardize on only having those, rather than
support both, even if standardizing on the side-specific ones would be
preferable.
Change-Id: I40e65a8842cd6706da92263a263f664336a7f3b3
Reviewed-on: https://boringssl-review.googlesource.com/2434
Reviewed-by: Adam Langley <agl@google.com>
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It should already be assigned, as of upstream's
b31b04d951e9b65bde29657e1ae057b76f0f0a73. I believe these assignments are part
of the reason it used to appear to work. Replace them with assertions. So the
assertions are actually valid, check in SSL_connect / SSL_accept that they are
never called if the socket had been placed in the opposite state. (Or we'd be
in another place where it would have appeared to work with the handshake
functions fixing things afterwards.)
Now the only places handshake_func is set are in SSL_set_{connect,accept}_state
and the method switches.
Change-Id: Ib249212bf4aa889b94c35965a62ca06bdbcf52e1
Reviewed-on: https://boringssl-review.googlesource.com/2432
Reviewed-by: Adam Langley <agl@google.com>
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This comment is no longer true. It dates from OpenSSL's initial commit, but
stopped being true in upstream's 413c4f45ed0508d2242638696b7665f499d68265.
Change-Id: I47377d992a00e3d57c795fef893e19e109dd6945
Reviewed-on: https://boringssl-review.googlesource.com/2431
Reviewed-by: Adam Langley <agl@google.com>
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We intend to deprecate the version-locked methods and unify them. Don't expose
that there's a method swap. (The existing version-locked methods will merely be
a shorthand for configuring minimum/maximum versions.)
There is one consumer of SSL_get_ssl_method in internal code, but it's just
some logging in test-only code. All it's doing is getting the version as a
string which should be SSL_get_version instead.
While here, also remove dead ssl_bad_method function. Also the bogus
ssl_crock_st forward-declaration. The forward declaration in base.h should be
perfectly sufficient.
Change-Id: I50480808f51022e05b078a285f58ec85d5ad7c8e
Reviewed-on: https://boringssl-review.googlesource.com/2408
Reviewed-by: Adam Langley <agl@google.com>
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This is a bit of cleanup that probably should have been done at the same time
as 30ddb434bfb845356fbacb6b2bd51f8814c7043c.
For now, version negotiation is implemented with a method swap. It also
performs this swap on SSL_set_session, but this was neutered in
30ddb434bfb845356fbacb6b2bd51f8814c7043c. Rather than hackishly neuter it,
remove it outright. In addition, remove SSL_set_ssl_method. Now all method
swaps are internal: SSLv23_method switch to a version-specific method and
SSL_clear undoing it.
Note that this does change behavior: if an SSL* is created with one
version-specific method and we SSL_set_session to a session from a /different/
version, we would switch to the /other/ version-specific method. This is
extremely confusing, so it's unlikely anyone was actually expecting it.
Version-specific methods in general don't work well.
Change-Id: I72a5c1f321ca9aeb1b52ebe0317072950ba25092
Reviewed-on: https://boringssl-review.googlesource.com/2390
Reviewed-by: Adam Langley <agl@google.com>
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Although the comment suggests this was added with an s->session check to
account for SSL_set_session switching methods (which we will remove in the next
commit) and to account for SSLv23_method switching methods (which we hope to
remove after a long tower of cleanup), the current codepath never runs and
can't work:
If it is called prior to handshaking or setting a session, no method switch has
happened so that codepath is dead. If it is called after setting a session, the
s->session check will keep it from running. If it is called after a handshake,
we will have established a session so that check will again keep it from
running. (Finally, if it is called during the handshake, the in_handshake check
will stop; that there is an SSL_clear call in the handshake state machine at
all is a bug that will be addressed once more things are disentangled. See
upstream's 979689aa5cfa100ccbc1f25064e9398be4b7b05c.)
Were that code to ever run, the SSL* would be in an inconsistent state. It
switches the method, but not the handshake_func. The handshake_func isn't
switched to NULL, so that will keep the SSL_connect and SSL_accept code from fixing it.
It seems the intent was that the caller would always call
SSL_set_{connect,accept}_state to fix this. But as of upstream's
b31b04d951e9b65bde29657e1ae057b76f0f0a73, this is not necessary and indeed
isn't called by a lot of consumer code.
Change-Id: I710652b1d565b77bc26f913c2066ce749a9025c9
Reviewed-on: https://boringssl-review.googlesource.com/2430
Reviewed-by: Adam Langley <agl@google.com>
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The data is owned by the SSL_SESSION, so the caller should not modify it. This
will require changes in Chromium, but they should be trivial.
Change-Id: I314718530c7d810f7c7b8852339b782b4c2dace1
Reviewed-on: https://boringssl-review.googlesource.com/2409
Reviewed-by: Adam Langley <agl@google.com>
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This is only used for EAP-FAST which we apparently don't need to support.
Remove it outright. We broke it in 9eaeef81fa2d4fd6246dc02b6203fa936a5eaf67 by
failing to account for session misses.
If this changes and we need it later, we can resurrect it. Preferably
implemented differently: the current implementation is bolted badly onto the
handshake. Ideally use the supplied callbacks to fabricate an appropriate
SSL_SESSION and resume that with as much of the normal session ticket flow as
possible.
The one difference is that EAP-FAST seems to require the probing mechanism for
session tickets rather than the sane session ID echoing version. We can
reimplement that by asking the record layer to probe ahead for one byte.
Change-Id: I38304953cc36b2020611556a91e8ac091691edac
Reviewed-on: https://boringssl-review.googlesource.com/2360
Reviewed-by: Adam Langley <agl@google.com>
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The ex_data index may fail to be allocated. Also don't leave a dangling pointer
in handshake_dgst if EVP_DigestInit_ex fails and check a few more init function
failures.
Change-Id: I2e99a89b2171c9d73ccc925a2f35651af34ac5fb
Reviewed-on: https://boringssl-review.googlesource.com/2342
Reviewed-by: Adam Langley <agl@google.com>
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This commit fixes a number of crashes caused by malloc failures. They
were found using the -malloc-test=0 option to runner.go which runs tests
many times, causing a different allocation call to fail in each case.
(This test only works on Linux and only looks for crashes caused by
allocation failures, not memory leaks or other errors.)
This is not the complete set of crashes! More can be found by collecting
core dumps from running with -malloc-test=0.
Change-Id: Ia61d19f51e373bccb7bc604642c51e043a74bd83
Reviewed-on: https://boringssl-review.googlesource.com/2320
Reviewed-by: Adam Langley <agl@google.com>
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tls1_process_sigalgs now only determines the intersection between the peer
algorithms and those configured locally. That list is queried later to
determine the hash algorithm to use when signing CertificateVerify or
ServerKeyExchange.
This is needed to support client auth on Windows where smartcards or CAPI may
not support all hash functions.
As a bonus, this does away with more connection-global state. This avoids the
current situation where digests are chosen before keys are known (for
CertificateVerify) or for slots that don't exist.
Change-Id: Iec3619a103d691291d8ebe08ef77d574f2faf0e8
Reviewed-on: https://boringssl-review.googlesource.com/2280
Reviewed-by: Adam Langley <agl@google.com>
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CERT_PKEY_SIGN isn't meaningful since, without strict mode, we always fall back
to SHA-1 anyway. So the digest is never NULL when CERT_PKEY_SIGN is computed.
The entire valid_flags is now back to it's pre-1.0.2 check of seeing if the
certificate and key are configured.
This finally removes the sensitivity between valid_flags and selecting the
digest, so we can defer choosing the digest all we like.
Change-Id: I9f9952498f512d7f0cc799497f7c5b52145a48af
Reviewed-on: https://boringssl-review.googlesource.com/2288
Reviewed-by: Adam Langley <agl@google.com>
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It doesn't depend on the cipher now that export ciphers are gone. It need only
be called once. Also remove the valid bit; nothing ever reads it. Its output is
also only used within a function, so make mask_k and mask_a local variables.
So all the configuration-based checks are in one place, change the input
parameter from CERT to SSL and move the PSK and ECDHE checks to the mask
computation. This avoids having to evaluate the temporary EC key for each
cipher.
The remaining uses are on the client which uses them differently (disabled
features rather than enabled ones). Those too may as well be local variables,
so leave a TODO.
Change-Id: Ibcb574341795d4016ea749f0290a793eed798874
Reviewed-on: https://boringssl-review.googlesource.com/2287
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: Id294821162c4c9ea6f2fce2a0be65bafcb616068
Reviewed-on: https://boringssl-review.googlesource.com/2311
Reviewed-by: Adam Langley <agl@google.com>
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There's not much point in retaining the identity hint in the SSL_SESSION. This
avoids the complexity around setting psk_identity hint on either the SSL or the
SSL_SESSION. Introduce a peer_psk_identity_hint for the client to store the one
received from the server.
This changes the semantics of SSL_get_psk_identity_hint; it now only returns
the value configured for the server. The client learns the hint through the
callback. This is compatible with the one use of this API in conscrypt (it
pulls the hint back out to pass to a callback).
Change-Id: I6d9131636b47f13ac5800b4451436a057021054a
Reviewed-on: https://boringssl-review.googlesource.com/2213
Reviewed-by: Adam Langley <agl@google.com>
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There's only one caller and it doesn't use that feature. While I'm here, tidy
that function a little. Don't bother passing FALLBACK_SCSV into
ssl3_get_cipher_by_value.
Change-Id: Ie71298aeaaab6e24401e0a6c2c0d2281caa93ba4
Reviewed-on: https://boringssl-review.googlesource.com/2030
Reviewed-by: Adam Langley <agl@google.com>
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This removes the need to track the client cipher list in the SSL_SESSION. It
also eliminates a field in SSL_SESSION that wasn't serialized by
i2d_SSL_SESSION. It's only used to implement SSL_get_shared_ciphers which is
only used by debug code.
Moreover, it doesn't work anyway. The SSLv2 logic pruned that field to the
common ciphers, but the SSLv3+ logic just stores the client list as-is. I found
no internal callers that were actually compiled (if need be we can stub in
something that always returns the empty string or so).
Change-Id: I55ad45964fb4037fd623f7591bc574b2983c0698
Reviewed-on: https://boringssl-review.googlesource.com/1866
Reviewed-by: Adam Langley <agl@google.com>
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This resolves a pile of MSVC warnings in Chromium.
Change-Id: Ib9a29cb88d8ed8ec4118d153260f775be059a803
Reviewed-on: https://boringssl-review.googlesource.com/1865
Reviewed-by: Adam Langley <agl@google.com>
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We patch bugs into the runner implementation for testing, not our own.
Change-Id: I0a8ac73eaeb70db131c01a0fd9c84f258589a884
Reviewed-on: https://boringssl-review.googlesource.com/1845
Reviewed-by: Adam Langley <agl@google.com>
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Still need to convert serializing code to CBB, but the current one is kinda
crazy.
Change-Id: I00e12a812c815bf01c53a26ccbb7c6727ea8c8fc
Reviewed-on: https://boringssl-review.googlesource.com/1840
Reviewed-by: Adam Langley <agl@google.com>
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Get those out of the way.
Change-Id: Ia1be476e383fc90c2373a24a072944fe377da6ef
Reviewed-on: https://boringssl-review.googlesource.com/1820
Reviewed-by: Adam Langley <agl@google.com>
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It's just checking some constants. Also the comment's off now.
Change-Id: I934d32b76c705758ae7c18009d867e9820a4c5a8
Reviewed-on: https://boringssl-review.googlesource.com/1800
Reviewed-by: Adam Langley <agl@google.com>
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Configures the SSL stack to log session information to a BIO. The intent is to
support NSS's SSLKEYLOGFILE environment variable. Add support for the same
environment variable to tool/client.cc.
Tested against Wireshark 1.12.0.
BUG=393477
Change-Id: I4c231f9abebf194eb2df4aaeeafa337516774c95
Reviewed-on: https://boringssl-review.googlesource.com/1699
Reviewed-by: Adam Langley <agl@google.com>
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Thanks to Denis Denisov for running the analysis.
Change-Id: I80810261e013423e746fd8d8afefb3581cffccc0
Reviewed-on: https://boringssl-review.googlesource.com/1701
Reviewed-by: Adam Langley <agl@google.com>
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Remove the old implementation which was excessively general. This mirrors the
SCT support and adds a single boolean flag to request an OCSP response with no
responder IDs, extensions, or frills. The response, if received, is stored on
the SSL_SESSION so that it is available for (re)validation on session
resumption; Chromium revalidates the saved auth parameters on resume.
Server support is unimplemented for now. This API will also need to be adjusted
in the future if we implement RFC 6961.
Change-Id: I533c029b7f7ea622d814d05f934fdace2da85cb1
Reviewed-on: https://boringssl-review.googlesource.com/1671
Reviewed-by: Adam Langley <agl@google.com>
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Don't pollute the embedder's namespace with a session_ctx macro. It looks like
the difference was that, without TLS extensions, session_ctx was ctx rather
than initial_ctx. Now it's always initial_ctx. Retain the semantics of
switching SSL_CTX's out after the fact, until/unless we decide to replace that
with something less scary-sounding.
Change-Id: Ie5df5138aec25218ca80031cf645671968b8a54a
Reviewed-on: https://boringssl-review.googlesource.com/1663
Reviewed-by: Adam Langley <agl@google.com>
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Get all this stuff out of the way.
- OPENSSL_NO_MD5
- OPENSSL_NO_SHA
- OPENSSL_NO_EC
- OPENSSL_NO_ECDSA
- OPENSSL_NO_ECDH
- OPENSSL_NO_NEXTPROTONEG
- OPENSSL_NO_DH
- OPENSSL_NO_SSL3
- OPENSSL_NO_RC4
- OPENSSL_NO_RSA
Also manually removed a couple instances of OPENSSL_NO_DSA that seemed to be
confused anyway. Did some minor manual cleanup. (Removed a few now-pointless
'if (0)'s.)
Change-Id: Id540ba97ee22ff2309ab20ceb24c7eabe766d4c4
Reviewed-on: https://boringssl-review.googlesource.com/1662
Reviewed-by: Adam Langley <agl@google.com>
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(Fixes the Windows build.)
Change-Id: Ibc7e3fe7cee275c8bc24198e996e4f92100ea9fc
Reviewed-on: https://boringssl-review.googlesource.com/1642
Reviewed-by: Adam Langley <agl@google.com>
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https://crbug.com/389420 and 3.3 in rfc6962.
Change-Id: Ib22bcd4e4bde5a314ed33e123e19a76cdb714da4
Reviewed-on: https://boringssl-review.googlesource.com/1491
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
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Change-Id: I1f917d1fe70ef5046eeea8fed27cc402bcd674b9
Reviewed-on: https://boringssl-review.googlesource.com/1568
Reviewed-by: Adam Langley <agl@google.com>
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DSA is not connected up to EVP, so it wouldn't work anyway. We shouldn't
advertise a cipher suite we don't support. Chrome UMA data says virtually no
handshakes end up negotiating one of these.
Change-Id: I874d934432da6318f05782ebd149432c1d1e5275
Reviewed-on: https://boringssl-review.googlesource.com/1566
Reviewed-by: Adam Langley <agl@google.com>
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These are the variants where the CA signs a Diffie-Hellman keypair. They are
not supported by Chrome on NSS.
Change-Id: I569a7ac58454bd3ed1cd5292d1f98499012cdf01
Reviewed-on: https://boringssl-review.googlesource.com/1564
Reviewed-by: Adam Langley <agl@google.com>
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Just use the normal API for them.
Change-Id: Ibb5988611a86e8d39abda1e02087523d98defb51
Reviewed-on: https://boringssl-review.googlesource.com/1555
Reviewed-by: Adam Langley <agl@google.com>
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This lets us put the SSL_CIPHER table in the data section. For type-checking,
make STACK_OF(SSL_CIPHER) cast everything to const SSL_CIPHER*.
Note that this will require some changes in consumers which weren't using a
const SSL_CIPHER *.
Change-Id: Iff734ac0e36f9e5c4a0f3c8411c7f727b820469c
Reviewed-on: https://boringssl-review.googlesource.com/1541
Reviewed-by: Adam Langley <agl@google.com>
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Of the remaining implementations left, ssl3_, dtls1_, and ssl23_, dtls1_ is
redundant and can be folded into ssl3_. ssl23_ actually isn't; it sets 5
minutes rather than 2 hours. Two hours seems to be what everything else uses
and seems a saner default. Most consumers seem to override it anyway
(SSL_CTX_set_timeout). But it is a behavior change.
The method is called at two points:
- SSL_get_default_timeout
- SSL_CTX_new
Incidentally, the latter call actually makes the former never called internally
and the value it returns a lie. SSL_get_default_timeout returns the default
timeout of the /current/ method, but in ssl_get_new_session, the timeout is
shadowed by session_timeout on the context. That is initialized when
SSL_CTX_new is called. So, unless you go out of your way to
SSL_CTX_set_timeout(0), it always overrides. (And it actually used to a
difference because, for SSL23, the SSL_CTX's method is SSL23, but, when session
creation happens, the SSL's method is the version-specific one.)
Change-Id: I331d3fd69b726242b36492402717b6d0b521c6ee
Reviewed-on: https://boringssl-review.googlesource.com/1521
Reviewed-by: Adam Langley <agl@google.com>
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Android uses this and added it to their OpenSSL in
https://android.googlesource.com/platform/external/openssl.git/+/master/patches/0003-jsse.patch
Change-Id: Ib7985d51752ad8e7b75480513c3ab582a30f398a
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