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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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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Change-Id: Iaac633616a54ba1ed04c14e4778865c169a68621
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Change-Id: Ie947ab176d10feb709c6e135d5241c6cf605b8e8
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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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Change-Id: Ida26e32a700c68e1899f9f6ccff73e2fa5252313
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Change-Id: I1e28ba84de59336cab432d1db3dd9c6023909081
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Change-Id: Ie46d45cdb07c692a789594e13040a1ce9d6cf83d
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finishedHash should keep a running secret and incorporate entropy as is
available.
Change-Id: I2d245897e7520b2317bc0051fa4d821c32eeaa10
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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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This change causes SSL_CTX_set_signed_cert_timestamp_list to check the
SCT list for shallow validity before allowing it to be set.
Change-Id: Ib8a1fe185224ff02ed4ce53a0109e60d934e96b3
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Previously the option to retain only the SHA-256 hash of client
certificates could only be set at the |SSL_CTX| level. This change makes
|SSL| objects inherit the setting from the |SSL_CTX|, but allows it to
be overridden on a per-|SSL| basis.
Change-Id: Id435934af3d425d5f008d2f3b9751d1d0884ee55
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This changes our resumption strategy. Before, we would negotiate ciphers
only on fresh handshakes. On resumption, we would blindly use whatever
was in the session.
Instead, evaluate cipher suite preferences on every handshake.
Resumption requires that the saved cipher suite match the one that would
have been negotiated anyway. If client or server preferences changed
sufficiently, we decline the session.
This is much easier to reason about (we always pick the best cipher
suite), simpler, and avoids getting stuck under old preferences if
tickets are continuously renewed. Notably, although TLS 1.2 ticket
renewal does not work in practice, TLS 1.3 will renew tickets like
there's no tomorrow.
It also means we don't need dedicated code to avoid resuming a cipher
which has since been disabled. (That dedicated code was a little odd
anyway since the mask_k, etc., checks didn't occur. When cert_cb was
skipped on resumption, one could resume without ever configuring a
certificate! So we couldn't know whether to mask off RSA or ECDSA cipher
suites.)
Add tests which assert on this new arrangement.
BUG=116
Change-Id: Id40d851ccd87e06c46c6ec272527fd8ece8abfc6
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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
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As a client, we must tolerate this to avoid interoperability failures
with allowed server behaviors.
BUG=117
Change-Id: I9c40a2a048282e2e63ab5ee1d40773fc2eda110a
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Draft 18 sadly loosens the requirements to only requiring the PRF hash
stay fixed.
BUG=117
Change-Id: Ic94d53fd9cabaee611fcf36b0071558075e10728
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This is generally much cleaner and makes it possible to implement the
more lax cipher matching in draft 18.
BUG=117
Change-Id: I595d7619d60bc92e598d75b43945286323c0b72b
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It doesn't particular matter, but AcceptAnySession should only skip the
things that would cause us to note accept a ticket. ExpectTicketAge is
an assertion, not part of protocol logic. Accordingly, fix the text.
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The version check should run if AcceptAnyVersion is *not* set.
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When debugging a flaky test, it's useful to be able to run a given test
over and over.
Change-Id: I1a7b38792215550b242eb8238214d873d41becb6
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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
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Thanks to Eric Rescorla for catching this.
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Having that logic in two different places is a nuisance when we go to
add new checks like resumption stuff. Along the way, this adds missing
tests for the ClientHello cipher/session consistency check. (We'll
eventually get it for free once the cipher/resumption change is
unblocked, but get this working in the meantime.)
This also fixes a bug where the session validity checks happened in the
wrong order relative to whether tickets_supported or renew_ticket was
looked at. Fix that by lifting that logic closer to the handshake.
Change-Id: I3f4b59cfe01064f9125277dc5834e62a36e64aae
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This was removed a while ago. As of -18, the early data indication
extension is just a boolean.
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We missed that the TLS 1.3 code was inconsistent with the TLS 1.2 code.
Only on the server did we push an error code. But consistency between
client and server is probably worthwhile so, fix the 1.2 code to match
for now.
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Change-Id: I07c4b67206440d169b314f24e1b3c1c697dda24f
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Certificate chain with intermediate taken from Chromium's tests. Though
it doesn't really matter because the runner tests don't verify
certificates.
BUG=70
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We used to enforce after the version was set, but stopped enforcing with
TLS 1.3. NSS enforces the value for encrypted records, which makes sense
and avoids the problems gating it on have_version. Add tests for this.
Change-Id: I7fb5f94ab4a22e8e3b1c14205aa934952d671727
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We have AEAD-level coverage for these, but we should also test this in
the TLS stack, and at maximum size per upstream's CVE-2016-7054.
Change-Id: I1f4ad0356e793d6a3eefdc2d55a9c7e05ea08261
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3c6a1ea674 switched what layer handled
the DTLS version mapping but forgot to correct the HelloVerifyRequest
logic to account for this.
Thanks to Jed Davis for noticing this.
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TLS 1.3 ciphers are now always enabled and come with a hard-coded
preference order.
BUG=110
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They will get very confused about which key they're using. Any caller
using exporters must either (a) leave renegotiation off or (b) be very
aware of when renegotiations happen anyway. (You need to somehow
coordinate with the peer about which epoch's exporter to use.)
Change-Id: I921ad01ac9bdc88f3fd0f8283757ce673a47ec75
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The existing tests for this codepath require us to reconfigure the shim.
This will not work when TLS 1.3 cipher configuration is detached from
the old cipher language. It also doesn't hit codepaths like sessions
containing a TLS 1.3 version but TLS 1.2 cipher.
Instead, add some logic to the runner to rewrite tickets and build tests
out of that.
Change-Id: I57ac5d49c3069497ed9aaf430afc65c631014bf6
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This change is based on interpreting TLS 1.3 draft 18.
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BUG=chromium:659593
Change-Id: I73a4751609b85df7cd40f0f60dc3f3046a490940
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On the client we'll leave it off by default until the change has made it
through Chrome's release process. For TLS 1.3, there is no existing
breakage risk, so always do it. This saves us the trouble of having to
manually turn it on in servers.
See [0] for a data point of someone getting it wrong.
[0] https://hg.mozilla.org/projects/nss/rev/9dbc21b1c3cc
Change-Id: I74daad9e7efd2040e9d66d72d558b31f145e6c4c
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Change-Id: I18cee423675d6a686f83b4ef4b38696cb618392c
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Reviewed-by: Nick Harper <nharper@chromium.org>
Reviewed-by: David Benjamin <davidben@google.com>
