These were forward-declared for SSL3_STATE but with that hidden, it's no
longer necessary.
Change-Id: I8c548822f56f6172b4033b2fa89c038adcec2caa
Reviewed-on: https://boringssl-review.googlesource.com/11860
Reviewed-by: Adam Langley <agl@google.com>
BUG=chromium:659593
Change-Id: I73a4751609b85df7cd40f0f60dc3f3046a490940
Reviewed-on: https://boringssl-review.googlesource.com/11861
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Channel ID for TLS 1.3 uses the same digest construction as
CertificateVerify. This message is signed with the Channel ID key and
put in the same handshake message (with the same format) as in TLS 1.2.
BUG=103
Change-Id: Ia5b2dffe5a39c39db0cecb0aa6bdc328e53accc2
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{sha1, ecdsa} is virtually nonexistent. {sha512, ecdsa} is pointless
when we only accept P-256 and P-384. See Chromium Intent thread here:
https://groups.google.com/a/chromium.org/d/msg/blink-dev/kWwLfeIQIBM/9chGZ40TCQAJ
This tweaks the signature algorithm logic slightly so that sign and
verify preferences are separate.
BUG=chromium:655318
Change-Id: I1097332600dcaa38e62e4dffa0194fb734c6df3f
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BUG=6
Change-Id: I463f5daa0bbf0f65269c52da25fa235ee2aa6ffb
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This should land in the same group of revisions as the two parent
commits.
Change-Id: Id9d769b890b3308ea70b705e7241c73cb1930ede
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We'll never send cookies, but we'll echo them on request. Implement it
in runner as well and test.
BUG=98
Change-Id: Idd3799f1eaccd52ac42f5e2e5ae07c209318c270
Reviewed-on: https://boringssl-review.googlesource.com/11565
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This doesn't currently honor the required KeyUpdate response. That will
be done in a follow-up.
BUG=74
Change-Id: I750fc41278736cb24230303815e839c6f6967b6a
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SSL_HANDSHAKE is dropped after the handshake, so I've removed the logic
around smaller sizes. It's much simpler when we can use CBS_stow and
CBB_finish without extra bounds-checking.
Change-Id: Idafaa5d69e171aed9a8759f3d44e52cb01c40f39
Reviewed-on: https://boringssl-review.googlesource.com/11567
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Now not only the pointers but also the list itself is released after the
handshake completes.
Change-Id: I8b568147d2d4949b3b0efe58a93905f77a5a4481
Reviewed-on: https://boringssl-review.googlesource.com/11528
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It's weird and makes things more confusing. Only use it for local
preferences as there is a default. Peer preferences can be read
directly. Also simplify the logic for requiring a non-empty peer group
list for ECDHE. The normal logic will give us this for free.
Change-Id: I1916155fe246be988f20cbf0b1728380ec90ff3d
Reviewed-on: https://boringssl-review.googlesource.com/11527
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This function is now only ever called as a client, so there are no peer
preferences to check against. It is also now only called on peer curves,
so it only needs to be compared against local preferences.
Change-Id: I87f5b10cf4fe5fef9a9d60aff36010634192e90c
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These functions are only called once. It ends up being not much code if
just done inline.
Change-Id: Ic432b313a6f7994ff9f51436cffbe0c3686a6c7c
Reviewed-on: https://boringssl-review.googlesource.com/11525
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This releases memory associated with them after the handshake. Note this
changes the behavior of |SSL_get0_certificate_types| and
|SSL_get_client_CA_list| slightly. Both functions now return NULL
outside of the handshake. But they were already documented to return
something undefined when not called at the CertificateRequest.
A survey of callers finds none that would care. (Note
SSL_get_client_CA_list is used both as a getter for the corresponding
server config setter and to report client handshake properties. Only the
latter is affected.) It's also pretty difficult to imagine why a caller
would wish to query this stuff at any other time, and there are clear
benefits to dropping the CA list after the handshake (some servers send
ABSURDLY large lists).
Change-Id: I3ac3b601ff0cfa601881ce77ae33d99bb5327004
Reviewed-on: https://boringssl-review.googlesource.com/11521
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Change-Id: I5d4fc0d3204744e93d71a36923469035c19a5b10
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BUG=77
Change-Id: If568412655aae240b072c29d763a5b17bb5ca3f7
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BUG=77
Change-Id: Id8c45e98c4c22cdd437cbba1e9375239e123b261
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This function is used by NGINX to enable specific curves for ECDH from a
configuration file. However when building with BoringSSL, since it's not
implmeneted, it falls back to using EC_KEY_new_by_curve_name() wich doesn't
support X25519.
Change-Id: I533df4ef302592c1a9f9fc8880bd85f796ce0ef3
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BUG=106
Change-Id: Iaa12aeb67627f3c22fe4a917c89c646cb3dc1843
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This GREASEs cipher suites, groups, and extensions. For now, we'll
always place them in a hard-coded position. We can experiment with more
interesting strategies later.
If we add new ciphers and curves, presumably we prefer them over current
ones, so place GREASE values at the front. This prevents implementations
from parsing only the first value and ignoring the rest.
Add two new extensions, one empty and one non-empty. Place the empty one
in front (IBM WebSphere can't handle trailing empty extensions) and the
non-empty one at the end.
Change-Id: If2e009936bc298cedf2a7a593ce7d5d5ddbb841a
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We'd previously been assuming we'd want to predict P-256 and X25519 but,
on reflection, that's nonsense. Although, today, P-256 is widespread and
X25519 is less so, that's not the right question to ask. Those servers
are all 1.2.
The right question is whether we believe enough servers will get to TLS
1.3 before X25519 to justify wasting 64 bytes on all other connections.
Given that OpenSSL has already shipped X25519 and Microsoft was doing
interop testing on X25519 around when we were shipping it, I think the
answer is no.
Moreover, if we are wrong, it will be easier to go from predicting one
group to two rather than the inverse (provided we send a fake one with
GREASE). I anticipate prediction-miss HelloRetryRequest logic across the
TLS/TCP ecosystem will be largely untested (no one wants to pay an RTT),
so taking a group out of the predicted set will likely be a risky
operation.
Only predicting one group also makes things a bit simpler. I haven't
done this here, but we'll be able to fold the 1.2 and 1.3 ecdh_ctx's
together, even.
Change-Id: Ie7e42d3105aca48eb9d97e2e05a16c5379aa66a3
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This is in preparation for using the supported_versions extension to
experiment with draft TLS 1.3 versions, since we don't wish to restore
the fallback. With versions begin opaque values, we will want
version_from_wire to reject unknown values, not attempt to preserve
order in some way.
This means ClientHello.version processing needs to be separate code.
That's just written out fully in negotiate_version now. It also means
SSL_set_{min,max}_version will notice invalid inputs which aligns us
better with upstream's versions of those APIs.
This CL doesn't replace ssl->version with an internal-representation
version, though follow work should do it once a couple of changes land
in consumers.
BUG=90
Change-Id: Id2f5e1fa72847c823ee7f082e9e69f55e51ce9da
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This will make it a little easier to store the normalized version rather
than the wire version. Also document the V2ClientHello behavior.
Change-Id: I5ce9ccce44ca48be2e60ddf293c0fab6bba1356e
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One less field to reset on renego and save a pointer of post-handshake
memory.
Change-Id: Ifc0c3c73072af244ee3848d9a798988d2c8a7c38
Reviewed-on: https://boringssl-review.googlesource.com/11086
Reviewed-by: Adam Langley <agl@google.com>
This isn't hugely important since the hs object will actually be
released at the end of the handshake, but no sense in holding on to them
longer than needed.
Also release |public_key| when we no longer need it and document what
the fields mean.
Change-Id: If677cb4a915c75405dabe7135205630527afd8bc
Reviewed-on: https://boringssl-review.googlesource.com/10360
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This withdraws support for -DBORINGSSL_ENABLE_RC4_TLS, and removes the
RC4 AEADs.
Change-Id: I1321b76bfe047d180743fa46d1b81c5d70c64e81
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Reason for revert: Right now in TLS 1.3, certificate_auth is exactly
the same as whether we're doing resumption. With the weird reauth
stuff punted to later in the spec, having extra state is just more
room for bugs to creep in.
Original issue's description:
> Determining certificate_auth and key_exchange based on SSL.
>
> This allows us to switch TLS 1.3 to use non-cipher based negotiation
> without needing to use separate functions between 1.3 and below.
>
> BUG=77
>
> Change-Id: I9207e7a6793cb69e8300e2c15afe3548cbf82af2
> Reviewed-on: https://boringssl-review.googlesource.com/10803
> Reviewed-by: David Benjamin <davidben@google.com>
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>
Change-Id: I240e3ee959ffd1f2481a06eabece3af554d20ffa
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This allows us to switch TLS 1.3 to use non-cipher based negotiation
without needing to use separate functions between 1.3 and below.
BUG=77
Change-Id: I9207e7a6793cb69e8300e2c15afe3548cbf82af2
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peer_sigalgs should live on SSL_HANDSHAKE. This both releases a little
bit of memory after the handshake is over and also avoids the bug where
the sigalgs get dropped if SSL_set_SSL_CTX is called at a bad time. See
also upstream's 14e14bf6964965d02ce89805d9de867f000095aa.
This only affects consumers using the old SNI callback and not
select_certificate_cb.
Add a test that the SNI callback works as expected. In doing so, add an
SSL_CTX version of the signing preferences API. This is a property of
the cert/key pair (really just the key) and should be tied to that. This
makes it a bit easier to have the regression test work with TLS 1.2 too.
I thought we'd fixed this already, but apparently not... :-/
BUG=95
Change-Id: I75b02fad4059e6aa46c3b05183a07d72880711b3
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Change-Id: Ie60744761f5aa434a71a998f5ca98a8f8b1c25d5
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Having two copies of this is confusing. This field is inherently tied to
the certificate chain, which lives on SSL_SESSION, so this should live
there too. This also wasn't getting reset correctly on SSL_clear, but
this is now resolved.
Change-Id: I22b1734a93320bb0bf0dc31faa74d77a8e1de906
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One less thing to keep track of.
https://github.com/tlswg/tls13-spec/pull/549 got merged.
Change-Id: Ide66e547140f8122a3b8013281be5215c11b6de0
Reviewed-on: https://boringssl-review.googlesource.com/10482
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BUG=75
Change-Id: Ied864cfccbc0e68d71c55c5ab563da27b7253463
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Now that ssl_bytes_to_cipher_list is uninteresting, it can be an
implementation detail of ssl3_choose_cipher. This removes a tiny amount
of duplicated TLS 1.2 / TLS 1.3 code.
Change-Id: I116a6bb08bbc43da573d4b7b5626c556e1a7452d
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It's odd that a function like ssl_bytes_to_cipher_list secretly has side
effects all over the place. This removes the need for the TLS 1.3 code
to re-query the version range, and it removes the requirement that the
RI extension be first.
Change-Id: Ic9af549db3aaa8880f3c591b8a13ba9ae91d6a46
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Between TLS 1.2, TLS 1.3, and the early callback, we've got a lot of
ClientHello parsers. Unify everything on the early callback's parser. As
a side effect, this means we can parse a ClientHello fairly succinctly
from any function which will let us split up ClientHello states where
appropriate.
Change-Id: I2359b75f80926cc7d827570cf33f93029b39e525
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tls13_process_certificate can take a boolean for whether anonymous is
allowed. This does change the error on the client slightly, but I think
this is correct anyway. It is not a syntax error for the server to send
no certificates in so far as the Certificate message allows it. It's
just illegal.
Change-Id: I1af80dacf23f50aad0b1fbd884bc068a40714399
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Extend the DTLS mock clock to apply to sessions too and test that
resumption behaves as expected.
Change-Id: Ib8fdec91b36e11cfa032872b63cf589f93b3da13
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We broke this to varying degrees ages ago.
This is the logic to implement the variations of rules in TLS to discard
sessions after a failed connection, where a failed connection could be
one of:
- A connection that was not cleanly shut down.
- A connection that received a fatal alert.
The first one is nonsense since close_notify does not actually work in
the real world. The second is a vaguely more plausible but...
- A stateless ticket-based server can't drop sessions anyway.
- In TLS 1.3, a client may receive many tickets over the lifetime of a
single connection. With an external session cache like ours which may,
in theory, but multithreaded, this will be a huge hassle to track.
- A client may well attempt to establish a connection and reuse the
session before we receive the fatal alert, so any application state we
hope to manage won't really work.
- An attacker can always close the connection before the fatal alert, so
whatever security policy clearing the session gave is easily
bypassable.
Implementation-wise, this has basically never worked. The
ssl_clear_bad_session logic called into SSL_CTX_remove_session which
relied on the internal session cache. (Sessions not in the internal
session cache don't get removed.) The internal session cache was only
useful for a server, where tickets prevent this mechanism from doing
anything. For a client, we since removed the internal session cache, so
nothing got removed. The API for a client also did not work as it gave
the SSL_SESSION, not the SSL, so a consumer would not know the key to
invalidate anyway.
The recent session state splitting change further broke this.
Moreover, calling into SSL_CTX_remove_session logic like that is
extremely dubious because it mutates the not_resumable flag on the
SSL_SESSION which isn't thread-safe.
Spec-wise, TLS 1.3 has downgraded the MUST to a SHOULD.
Given all that mess, just remove this code. It is no longer necessary to
call SSL_shutdown just to make session caching work.
Change-Id: Ib601937bfc5f6b40436941e1c86566906bb3165d
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Save a little bit of typing at the call site.
Change-Id: I818535409b57a694e5e0ea0e9741d89f2be89375
Reviewed-on: https://boringssl-review.googlesource.com/9090
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We will now send tickets as a server and accept them as a
client. Correctly offering and resuming them in the handshake will be
implemented in a follow-up.
Now that we're actually processing draft 14 tickets, bump the draft
version.
Change-Id: I304320a29c4ffe564fa9c00642a4ace96ff8d871
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Change-Id: Id6a7443246479c62cbe0024e2131a2013959e21e
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OpenSSL 1.1.0 added a function to tell if an SSL* is DTLS or not. This
is probably a good idea, especially since SSL_version returns
non-normalized versions.
BUG=91
Change-Id: I25c6cf08b2ebabf0c610c74691de103399f729bc
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BUG=74
Change-Id: I72d52c1fbc3413e940dddbc0b20c7f22459da693
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Change-Id: I5cc194fc0a3ba8283049078e5671c924ee23036c
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To prevent configuration/established session confusion, the handshake
session state is separated into the configured session (ssl->session)
and the newly created session (ssl->s3->new_session). Upon conclusion of
the handshake, the finalized session is stored
in (ssl->s3->established_session). During the handshake, any requests
for the session (SSL_get_session) return a non-resumable session, to
prevent resumption of a partially filled session. Sessions should only
be cached upon the completion of the full handshake, using the resulting
established_session. The semantics of accessors on the session are
maintained mid-renego.
Change-Id: I4358aecb71fce4fe14a6746c5af1416a69935078
Reviewed-on: https://boringssl-review.googlesource.com/8612
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>
