Useful for parsing things when you don't know what tag to expect (e.g. a
CHOICE). Also allow its operands to be NULL, so that it can be used to skip
arbitrary elements.
Delete CBS_ASN1_ANY which wasn't doing anything.
Change-Id: I56413e68b4f2e13860ea3e55373d5830713d7e5c
Reviewed-on: https://boringssl-review.googlesource.com/1661
Reviewed-by: Adam Langley <agl@google.com>
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>
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 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>
wpa_supplicant needs this in order to get the order of the coordinate
field, apparently so that they can hash to a point.
Change-Id: I92d5df7b37b67ace5f497c25f53f16bbe134aced
Reviewed-on: https://boringssl-review.googlesource.com/1622
Reviewed-by: Adam Langley <agl@google.com>
This only applies to RC4, but it is still used by some Android code.
Change-Id: I4cf86269ffb7a230576da1bb2bfef7e1d4f234d6
Reviewed-on: https://boringssl-review.googlesource.com/1621
Reviewed-by: Adam Langley <agl@google.com>
Sadly this is needed by wpa_supplicant for NTLM hashes.
Change-Id: I1c362c676a11ee01f301ff6fbd33d0669396ea23
Reviewed-on: https://boringssl-review.googlesource.com/1620
Reviewed-by: Adam Langley <agl@google.com>
This fixes several of the problems with the old API.
- Padding was completely ignored.
- ='s in the middle of the input were accepted.
- It tries to be helpful and strips leading/trailing whitespace.
Change-Id: I99b9d5e6583f7eaf9bf0b6ee9ca39799811b58dc
Reviewed-on: https://boringssl-review.googlesource.com/1602
Reviewed-by: Adam Langley <agl@google.com>
This is cleaner than the OpenSSL code was, at least, but it's hardly
beautiful due to the "standard" that it's trying to implement. (See
[1].)
The references from the PKCS#8 code to various ciphers have digests have
been made into function pointer references rather than NIDs so that the
linker will be able to drop RC2 code for binaries that don't call PKCS#8
or #12 functions.
A bug that crashed OpenSSL/BoringSSL when parsing a malformed PKCS#8
structure has been fixed too.
See https://www.cs.auckland.ac.nz/~pgut001/pubs/pfx.html
Change-Id: Iaa1039e04ed7877b90792835e8ce3ebc3b29f89e
Reviewed-on: https://boringssl-review.googlesource.com/1592
Reviewed-by: Adam Langley <agl@google.com>
Previously, the ASN.1 functions in bytestring were capable of processing
indefinite length elements when the _ber functions were used. That works
well enough for PKCS#3, but NSS goes a bit crazy with BER encoding and
PKCS#12. Rather than complicate the core bytestring functions further,
the BER support is removed from them and moved to a separate function
that converts from BER to DER (if needed).
Change-Id: I2212b28e99bab9fab8c61f80d2012d3e5a3cc2f0
Reviewed-on: https://boringssl-review.googlesource.com/1591
Reviewed-by: Adam Langley <agl@google.com>
As useless as it might seem, the certificates in PKCS#12 files appear to
always be encrypted with 40-bit RC2. OpenSSL, NSS and Windows are all
the same on this point. Thus, in order to be able to import PKCS#12
files we need RC2 support.
RC2 has deliberately not been added to EVP_get_cipherbynid so that the
linker can drop the RC2 code unless the PKCS#12 functions are actually
called.
Change-Id: I5b2062fdf78cb622a8038c326da01aac8fb58962
Reviewed-on: https://boringssl-review.googlesource.com/1590
Reviewed-by: Adam Langley <agl@google.com>
Otherwise, in C, it becomes a K&R function declaration which doesn't actually
type-check the number of arguments.
Change-Id: I0731a9fefca46fb1c266bfb1c33d464cf451a22e
Reviewed-on: https://boringssl-review.googlesource.com/1582
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>
This also removes the 'LOW' strength class.
Change-Id: Iffd2356dadb4a4875c1547a613d51061101358fd
Reviewed-on: https://boringssl-review.googlesource.com/1562
Reviewed-by: Adam Langley <agl@google.com>
NULL, SRP, CAMELLIA, export ciphers, SSLv2, IDEA, and SEED are gone. Unknown
directives are silently ignored in the parser, so there is no need to retain
their masks and entries in the cipher suite aliases.
Change-Id: If43b9cbce56b3e1c401db764b88996940452a300
Reviewed-on: https://boringssl-review.googlesource.com/1561
Reviewed-by: Adam Langley <agl@google.com>
This change exports SSL_cutthrough_complete and EVP_EncodedLength (which
were missed below) and also exports all ASN.1 "item" values because
Android needs that.
Change-Id: I6d10f935bb52ed6d682607a4016dd2b87758e3de
Reviewed-on: https://boringssl-review.googlesource.com/1557
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: If7752709727fe33ba38a9d414089253bb2f89ea2
Reviewed-on: https://boringssl-review.googlesource.com/1558
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
This change removes the old ASN.1 functions (ASN1_seq_unpack and
ASN1_seq_pack) which have always been disabled in BoringSSL.
It also removes code enabled by OPENSSL_EXPORT_VAR_AS_FUNCTION, which
we have never used.
Change-Id: I1fe323abf945a8a5828a04cc195c072e100a5095
Reviewed-on: https://boringssl-review.googlesource.com/1556
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
This change extracts two, common parts of RSA_decrypt and RSA_sign into
a function called |private_transform|. It also allows this to be
overridden in a method, which is convenient for opaque keys that only
expose the raw RSA transform as it means that the padding code from
BoringSSL can be easily reimplemented.
One significant change here is that short RSA ciphertexts will no longer
be accepted. I think this is correct and OpenSSL has a comment about PGP
mistakenly stripping leading zeros. However, these is the possibility
that it could break something.
Change-Id: I258c5cbbf21314cc9b6e8d2a2b898fd9a440cd40
Reviewed-on: https://boringssl-review.googlesource.com/1554
Reviewed-by: Adam Langley <agl@google.com>
This function was missed when the OPENSSL_EXPORT tags were first added.
Change-Id: Ia73555b8e7ca87f228a8ff9b281d7c401f1655a7
Reviewed-on: https://boringssl-review.googlesource.com/1553
Reviewed-by: David Benjamin <davidben@chromium.org>
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>
Rather than switching the order of the ServerHello and HelloVerifyRequest
states and processing each twice, have the states follow the protocol order.
HelloVerifyRequest reading is optional and ServerHello is strict. Use the
send_cookie bit to determine whether we're expecting a cookie or not.
Fix the dtls1_stop_timer call in these states to consistently hit the end of a
server flight; the previous flight should not be cleared from the retransmit
buffer until the entire next flight is received. That said, OpenSSL doesn't
appear to implement the part where, on receipt of the previous peer flight, the
buffered flight is retransmitted. (With the exception of a SSL3_MT_FINISHED
special-case in dtls1_read_bytes.) So if the peer is also OpenSSL, this doesn't
do anything.
Also fix the DTLS test which wasn't actually asserting that the ClientHello
matched.
Change-Id: Ia542190972dbffabb837d32c9d453a243caa90b2
Reviewed-on: https://boringssl-review.googlesource.com/1551
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>
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>
Those ciphers go through EVP_AEAD now.
Change-Id: Ia97af9960223724f041dc2c249def9e626fd03f8
Reviewed-on: https://boringssl-review.googlesource.com/1520
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>
Android uses these for some conversions from Java formats. The code is
sufficiently bespoke that putting the conversion functions into
BoringSSL doesn't make a lot of sense, but the alternative is to expose
these ones.
Change-Id: If1362bc4a5c44cba4023c909e2ba6488ae019ddb
Several callers of EVP_EncodeBlock are doing ad-hoc versions of this
function without any overflow checks.
Change-Id: I4d0cad2347ea8c44b42465e8b14b2783db69ee8f
Reviewed-on: https://boringssl-review.googlesource.com/1511
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Android needs it. These functions were removed in the move to BoringSSL.
Change-Id: Ice24a0a1c390930cf07dbd00f72a3e12e6c241f9
Reviewed-on: https://boringssl-review.googlesource.com/1510
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
This is needed by Android because it passes this string to a handshake
callback. It's implemented in Android's OpenSSL in this patch:
https://android.googlesource.com/platform/external/openssl.git/+/master/patches/0003-jsse.patch
(Note that it's called |SSL_authentication_method| there.)
I didn't format this function in OpenSSL style because it's crazy and
because we'll probably clang-format ssl/ soon.
Change-Id: I865540511b50859c339da5d76ce37810449aa444
Android needs this and it was patched into their OpenSSL in
https://android.googlesource.com/platform/external/openssl.git/+/master/patches/0003-jsse.patch
It appears that this is needed because javax.net.ssl.SSLEngine has it as
part of its interface and thus it's part of the Android API. No idea why
anything would ever want to disable that though.
Change-Id: I9c6279a961637f44936889edbe269b9d5c19746d
ssl23_get_client_hello has lots of remnants of SSLv2 support and remnants of an
even older SSL_OP_NON_EXPORT_FIRST option (see upstream's
d92f0bb6e9ed94ac0c3aa0c939f2565f2ed95935) which complicates the logic.
Split it into three states and move V2ClientHello parsing into its own
function. Port it to CBS and CBB to give bounds checks on the V2ClientHello
parse.
This fixes a minor bug where, if the SSL_accept call in ssl23_get_client_hello
failed, cb would not be NULL'd and SSL_CB_ACCEPT_LOOP would get reported an
extra time.
It also unbreaks the invariant between s->packet, s->packet_length,
s->s3->rbuf.buf, and s->s3->rbuf.offset at the point the switch, although this
was of no consequence because the first ssl3_read_n call passes extend = 0
which resets s->packet and s->packet_length.
It also makes us tolerant to major version bumps in the ClientHello. Add tests
for TLS tolerance of both minor and major version bumps as well as the HTTP
request error codes.
Change-Id: I948337f4dc483f4ebe1742d3eba53b045b260257
Reviewed-on: https://boringssl-review.googlesource.com/1455
Reviewed-by: Adam Langley <agl@google.com>
Change-Id: I908d207ccd3d529ec09c687effc2aeb4631127d9
Reviewed-on: https://boringssl-review.googlesource.com/1470
Reviewed-by: David Benjamin <davidben@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Windows doesn't have ssize_t, sadly. There's SSIZE_T, but defining an
OPENSSL_SSIZE_T seems worse than just using an int.
Change-Id: I09bb5aa03f96da78b619e551f92ed52ce24d9f3f
Reviewed-on: https://boringssl-review.googlesource.com/1352
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>
