All of NSS, upstream OpenSSL, SChannel, and Secure Transport require, on the
client, that the ServerHello version match the session's version on resumption.
OpenSSL's current behavior is incompatible with all of these. Fall back to a
full handshake on the server instead of mismatch.
Add a comment on the client for why we are, as of
30ddb434bf, not currently enforcing the same in
the client.
Change-Id: I60aec972d81368c4ec30e2fd515dabd69401d175
Reviewed-on: https://boringssl-review.googlesource.com/2244
Reviewed-by: Adam Langley <agl@google.com>
The limit increased from 32 to 255 between DTLS 1.0 and DTLS 1.2.
Change-Id: I329a59f9ba2bccc70282e2b47679c57b67e5ed43
Reviewed-on: https://boringssl-review.googlesource.com/2242
Reviewed-by: Adam Langley <agl@google.com>
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>
(Imported form upstream's 455b65dfab0de51c9f67b3c909311770f2b3f801 and
0d6a11a91f4de238ce533c40bd9507fe5d95f288)
Change-Id: Ia195c7fe753cfa3a7f8c91d2d7b2cd40a547be43
s->s3 is never NULL if an ssl3_* function is called, and we'll crash later
anyway. (This also makes scan-build stop believing it can be NULL.)
Change-Id: Ibf8433bd4d945f9bf5416d72946102a9e50d2787
Reviewed-on: https://boringssl-review.googlesource.com/2206
Reviewed-by: Adam Langley <agl@google.com>
Minor change, but they're the users of the old API left within
BoringSSL.
Change-Id: Ic24e0d006c97fa5265abc3373d3f98aa8d2f8b1e
Reviewed-on: https://boringssl-review.googlesource.com/2100
Reviewed-by: Adam Langley <agl@google.com>
If generating the master secret or applying the PSK post-processing fails,
we'll double-free all the ECDH state.
Change-Id: Id52931af73bdef5eceb06f7e64d32fdda629521e
Reviewed-on: https://boringssl-review.googlesource.com/2063
Reviewed-by: Adam Langley <agl@google.com>
Deprecate the old two-pass version of the function. If the ticket is too long,
replace it with a placeholder value but keep the connection working.
Change-Id: Ib9fdea66389b171862143d79b5540ea90a9bd5fb
Reviewed-on: https://boringssl-review.googlesource.com/2011
Reviewed-by: Adam Langley <agl@google.com>
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>
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>
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>
Remove one more difference to worry about switching between TLS and SSLv3
method tables.
Although this does change the get_ssl_method hook for the version-specific
tables (before TLS and SSLv3 would be somewhat partitioned), it does not appear
to do anything. get_ssl_method is only ever called in SSL_set_session for
client session resumption. Either you're using the version-specific method
tables and don't know about other versions anyway or you're using SSLv23 and
don't partition TLS vs SSL3 anyway.
BUG=chromium:403378
Change-Id: I8cbdf02847653a01b04dbbcaf61fcb3fa4753a99
Reviewed-on: https://boringssl-review.googlesource.com/1842
Reviewed-by: Adam Langley <agl@google.com>
The TLS-specific hooks have been removed. We aim to no longer perform version
negotiation as a pre-processing step, so ensure the only differences to worry
about are the version, get_method hook, and the enc_data.
BUG=chromium:403378
Change-Id: I628ec6f4c50ceed01d7af8f4110b6dc95cfbe023
Reviewed-on: https://boringssl-review.googlesource.com/1841
Reviewed-by: Adam Langley <agl@google.com>
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>
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>
This moves CertificateVerify digest processing to the new
SSL_GET_MESSAGE_DONT_HASH_MESSAGE flag. It also refactors it similarly to
ssl3_send_cert_verify and moves that logic to a common ssl3_cert_verify_hash
function to compute the handshake hash.
This removes a large chunk of duplicate (and divergent!) logic between TLS and
DTLS. It also removes TLS1_FLAGS_KEEP_HANDSHAKE.
Change-Id: Ia63c94f7d76d901bc9c4c33454fbfede411adf63
Reviewed-on: https://boringssl-review.googlesource.com/1633
Reviewed-by: Adam Langley <agl@google.com>
This avoids needing the save the hash on the SSL* (and use some field for two
purposes). Instead, use the new SSL_GET_MESSAGE_DONT_HASH_MESSAGE flag (which
actually was already used here, but at the time, pointlessly). Also fix a minor
bug where the hash would be recomputed in non-blocking mode because init_num
may stay zero for a few state machine iterations.
Change-Id: I3d8331cf3134c5f9a3eda9e988bba5bcebe40933
Reviewed-on: https://boringssl-review.googlesource.com/1631
Reviewed-by: Adam Langley <agl@google.com>
This replaces the special-case in ssl3_get_message for Channel ID. Also add
ssl3_hash_current_message to hash the current message, taking TLS vs DTLS
handshake header size into account.
One subtlety with this flag is that a message intended to be processed with
SSL_GET_MESSAGE_DONT_HASH_MESSAGE cannot follow an optional message
(reprocessed with reuse_message, etc.). There is an assertion to that effect.
If need be, we can loosen it to requiring that the preceeding optional message
also pass SSL_GET_MESSAGE_DONT_HASH_MESSAGE and then maintain some state to
perform the more accurate assertion, but this is sufficient for now.
Change-Id: If8c87342b291ac041a35885b9b5ee961aee86eab
Reviewed-on: https://boringssl-review.googlesource.com/1630
Reviewed-by: Adam Langley <agl@google.com>
Now that only RSA and ECDSA certificates are supported, the server should just
reject non-signing ones outright, rather than allowing them to skip
CertificateVerify.
Change-Id: I7fe5ed3adde14481016ee841ed241faba18c26f0
Reviewed-on: https://boringssl-review.googlesource.com/1609
Reviewed-by: Adam Langley <agl@google.com>
The return values are now 1/0, not 1/0/-1.
Change-Id: If65bb08a229c7944cb439ec779df461904d0ec19
Reviewed-on: https://boringssl-review.googlesource.com/1607
Reviewed-by: Adam Langley <agl@google.com>
It doesn't appear to have ever been implemented on the client. The server code
stopped working anyway because it now skips the ssl_get_message call, so we
never cash in on the reuse_message, attempt to reprocess the repeated
ClientHello, and reject it thinking it's a second MS SGC restart.
Change-Id: Id536846e08460143f6fc0a550bdcc1b26b506b04
Reviewed-on: https://boringssl-review.googlesource.com/1580
Reviewed-by: Adam Langley <agl@google.com>
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>
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>
In the fixed_ecdh case, it wasn't even implemented, but there was stub code for
it. It complicates the ClientKeyExchange (the client parameters become implicit
in the certificate) and isn't used.
Change-Id: I3627a37042539c90e05e59cd0cb3cd6c56225561
Reviewed-on: https://boringssl-review.googlesource.com/1563
Reviewed-by: Adam Langley <agl@google.com>
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>
I see no internal users and the existence of a THIRD version encoding
complicates all version-checking logic. Also convert another version check to
SSL_IS_DTLS that was missed earlier.
Change-Id: I60d215f57d44880f6e6877889307dc39dbf838f7
Reviewed-on: https://boringssl-review.googlesource.com/1550
Reviewed-by: Adam Langley <agl@google.com>
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>
It was added in OpenSSL 1.0.2, so nothing can be depending on it yet. If we
really want a Suite B profile, it seems better to generate a configuration for
the rest of the system rather than pepper the codebase with checks.
Change-Id: I1be3ebed0e87cbfe236ade4174dcf5bbc7e10dd5
Reviewed-on: https://boringssl-review.googlesource.com/1517
Reviewed-by: Adam Langley <agl@google.com>
It's not part of SSL_OP_ALL and is unused, so remove it. Add a test that
asserts the version check works.
Change-Id: I917516594ec5a4998a8316782f035697c33d99b0
Reviewed-on: https://boringssl-review.googlesource.com/1418
Reviewed-by: Adam Langley <agl@google.com>
Any ssl3_get_* function that takes ownership of something before the
ssl_get_message call can't early-return without cleanup work.
This fixes valgrind on ClientAuth-Server-Async.
Change-Id: Ie7f0b37cac4d4bb7e06c00bae091fee0386c22da
Reviewed-on: https://boringssl-review.googlesource.com/1413
Reviewed-by: Adam Langley <agl@google.com>
- DTLS server code didn't account for the new ClientHello state. This looks
like it only matters if a DTLS server uses select_certificate_cb and returns
asynchronously.
- State A transitions immediately to B and is redundant. No code distinguishes
A and B.
- The ssl_get_message call transitions to the second state (originally C). This
makes the explicit transition to C a no-op. More of a problem,
ssl_get_message may return asynchronously and remain in its second state if the
handshake body had not completed yet. Fix this by splitting state C in two.
Combined with the above change, this results in only the top few states getting
reshuffled.
This fixes the server async tests.
Change-Id: I46703bcd205988b118217b6424ba4f88e731be5a
Reviewed-on: https://boringssl-review.googlesource.com/1412
Reviewed-by: Adam Langley <agl@google.com>
Although the PKCS#1 padding check is internally constant-time, it is not
constant time at the crypto/ ssl/ API boundary. Expose a constant-time
RSA_message_index_PKCS1_type_2 function and integrate it into the
timing-sensitive portion of the RSA key exchange logic.
Change-Id: I6fa64ddc9d65564d05529d9b2985da7650d058c3
Reviewed-on: https://boringssl-review.googlesource.com/1301
Reviewed-by: Adam Langley <agl@google.com>
Now that the flag is set accurately, use it to enforce that the handshake and
CCS synchronization. If EXPECT_CCS is set, enforce that:
(a) No handshake records may be received before ChangeCipherSpec.
(b) There is no pending handshake data at the point EXPECT_CCS is set.
Change-Id: I04b228fe6a7a771cf6600b7d38aa762b2d553f08
Reviewed-on: https://boringssl-review.googlesource.com/1299
Reviewed-by: Adam Langley <agl@google.com>
Rename SSL3_ST_SR_POST_CLIENT_CERT to SSL3_ST_SR_CHANGE and have this be the
point at which CCS_OK is set. The copy before ssl3_get_finished is redundant as
we never transition to SR_FINISHED directly.
Change-Id: I3eefeb821e7ae53d52dacc587fdc59de9ea9a667
Reviewed-on: https://boringssl-review.googlesource.com/1297
Reviewed-by: Adam Langley <agl@google.com>
This removes the last case where the server generates an RSA key for the
ServerKeyExchange. Remove the code for this. Client support to accept them
still remains.
Leave the APIs for now, but they don't do anything anymore.
Change-Id: I84439e034cc575719f5bc9b3e501165e12b62107
Reviewed-on: https://boringssl-review.googlesource.com/1286
Reviewed-by: Adam Langley <agl@google.com>
Now the only case where temporary RSA keys are used on the server end is
non-signing keys.
Change-Id: I55f6c206e798dd28548c386fdffd555ccc395477
Reviewed-on: https://boringssl-review.googlesource.com/1285
Reviewed-by: Adam Langley <agl@google.com>
SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG and
SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG. Neither of them have code that's even
enabled.
Change-Id: I866aabe1aa37e8ee145aaeaecaff6704c3ad21bc
Reviewed-on: https://boringssl-review.googlesource.com/1284
Reviewed-by: Adam Langley <agl@google.com>
Also fix a place where fixes for the condition for sending ServerKeyExchange in
s3_srvr.c were never propogated to d1_srvr.c. Tidy up that logic to use
ssl_cipher_requires_server_key_exchange and simplify the PSK check.
Change-Id: Ie36d378f733e59a8df405bc869f2346af59bd574
Reviewed-on: https://boringssl-review.googlesource.com/1283
Reviewed-by: Adam Langley <agl@google.com>
This removes support code for a "stream_mac" mode only used by GOST. Also get
rid of this
/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
comment next to it. It's not actually related to GOST (dates to OpenSSL initial
commit), but isn't especially helpful at this point.
Change-Id: Ib13c6e27e16e0d1fb59ed0142ddf913b9abc20b7
Reviewed-on: https://boringssl-review.googlesource.com/1281
Reviewed-by: Adam Langley <agl@google.com>
Without SSLv2, all cipher suite values are 2 bytes. Represent them as a
uint16_t and make all functions pass those around rather than pointers.
This removes SSL_CIPHER_find as it's unused.
Change-Id: Iea0b75abee4352a8333a4b8e39a161430ae55ea6
Reviewed-on: https://boringssl-review.googlesource.com/1259
Reviewed-by: Adam Langley <agl@google.com>
Don't retain curve IDs in serialized form; serialization only happens when
writing and reading from the wire. The internal representation is a uint16_t
which matches the range of the value and avoids all the checks for the first
byte being 0.
This also fixes a bug in tls1_check_ec_tmp_key's suite B logic; the || should
have been &&, though now it's gone.
This doesn't relieve some of the other assumptions about curve IDs:
tls1_set_curves still assumes that all curve IDs are under 32, and
tls1_ec_curve_id2nid still assumes 0 is not a valid curve ID. Add a
compile-time assert and a comment to document this. We're up to 28 now, so this
may well need to be revised sooner or later.
Remove SSL_get_shared_curve as it's new and unused API, using it in a loop is
O(N^3), and lets us simplify a function.
Change-Id: I82778cb82648d82f7b5de8c5341e0e1febdf5611
Reviewed-on: https://boringssl-review.googlesource.com/1256
Reviewed-by: Adam Langley <agl@google.com>
This removes one place where we set CCS_OK. ssl3_get_cert_verify already knows
whether or not to expect a CertificateVerify message, so there is no need to
look ahead and potentially read ChangeCipherSpec early.
Change-Id: I80f4ec218b073c1007b01dbe1e3bd529fb848d37
Reviewed-on: https://boringssl-review.googlesource.com/1293
Reviewed-by: Adam Langley <agl@google.com>
Also fix some DTLS cookie bugs. rcvd_cookie is never referenced after being
saved (and the length isn't saved, so it couldn't be used anyway), and the
cookie verification failed to check the length.
For convenience, add a CBS_mem_equal helper function. Saves a bit of
repetition.
Change-Id: I187137733b069f0ac8d8b1bf151eeb80d388b971
Reviewed-on: https://boringssl-review.googlesource.com/1174
Reviewed-by: Adam Langley <agl@google.com>
