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>
More consistent with ssl3_send_server_key_exchange and the message name.
Change-Id: If0f435a89bdf117297d349099708fff0bd5a6e98
Reviewed-on: https://boringssl-review.googlesource.com/1170
Reviewed-by: Adam Langley <agl@google.com>
This avoids having to do the CBS_skip dance and is better about returning the
right alert.
Change-Id: Id84eba307d7c67269ccbc07a38d9044b6f4f7c6c
Reviewed-on: https://boringssl-review.googlesource.com/1169
Reviewed-by: Adam Langley <agl@google.com>
Also tidy up some variable names and update RSA_verify call for it no longer
returning -1. Add CBS helper functions for dealing with C strings.
Change-Id: Ibc398d27714744f5d99d4f94ae38210cbc89471a
Reviewed-on: https://boringssl-review.googlesource.com/1164
Reviewed-by: Adam Langley <agl@google.com>
Missing ServerKeyExchange is handled, but only because it hits an
ERR_R_INTERNAL_ERROR in ssl3_send_client_key_exchange in trying to find the
server ECDH parameters. Be strict about requiring it for ECDHE.
Change-Id: Ifce5b73c8bd14746b8a2185f479d550e9e3f84df
Reviewed-on: https://boringssl-review.googlesource.com/1157
Reviewed-by: Adam Langley <agl@google.com>
Introduce a ssl_cipher_has_server_public_key to save the repeated
NULL/PSK/RSA_PSK[*] check. Don't allow skipping to ServerKeyExchange when
expecting Certificate; the messages expected are determined by the cipher
suite. The ssl3_get_server_public_key call is already guarded.
As the previous test demonstrates, this is safe because of the
ssl3_check_cert_and_algorithm call, but avoid the looseness in the parsing
there.
[*] NB: we don't implement RSA_PSK, and OpenSSL has never implemented it.
Change-Id: I0571e6bcbeb8eb883f77878bdc98d1aa3a287cf3
Reviewed-on: https://boringssl-review.googlesource.com/1156
Reviewed-by: Adam Langley <agl@google.com>
This drops the bits of logic that allowed Certificate messages to be optional
for a KRB5 cipher suite.
Change-Id: I2a71b7c13d7e76f4f5542d4074169f80f3617240
Reviewed-on: https://boringssl-review.googlesource.com/1154
Reviewed-by: Adam Langley <agl@google.com>
This is the first of reorganizing state between connection state and handshake
state. The existing set are retained in cert_st for the server; they are server
configuration. The client gets a copy in s->s3->tmp alongside other handshake
state.
With other handshake state moved there, hopefully we can reset that state in
one go and possibly not even maintain it when there is no handshake in
progress. Rather than currently where we sometimes confused connection state
and handshake state and have to reset as appropriate on renegotiate.
While I'm here, document the fields and name them something more useful than
'ctypes'.
Change-Id: Ib927579f0004fc5c6854fce2127625df669b2b6d
Reviewed-on: https://boringssl-review.googlesource.com/1113
Reviewed-by: Adam Langley <agl@google.com>
This is the only codepath that allowed a cert_st to be shared between two
ssl_st's. Given that the cert_st currently contains some per-connection and
even per-handshake state, this probably doesn't work.
Remove the function altogether and don't ref-count cert_st.
Change-Id: I66d5346117cb59b6063e7b9b893d1c4b40cb6867
Reviewed-on: https://boringssl-review.googlesource.com/1110
Reviewed-by: Adam Langley <agl@google.com>
Along the way, clean up the certificate types code to not have the
hard-coded fixed-size array.
Change-Id: If3e5978f7c5099478a3dfa37a0a7059072f5454a
Reviewed-on: https://boringssl-review.googlesource.com/1103
Reviewed-by: Adam Langley <agl@google.com>
Building without RSA support is unreasonable. Changes were made by
running
find . -type f -name *.c | xargs unifdef -m -U OPENSSL_NO_RSA
find . -type f -name *.h | xargs unifdef -m -U OPENSSL_NO_RSA
using unifdef 2.10 and some newlines were removed manually.
Change-Id: Iea559e2d4b3d1053f28a4a9cc2f7a3d1f6cabd61
Reviewed-on: https://boringssl-review.googlesource.com/1095
Reviewed-by: Adam Langley <agl@google.com>
Found no users of the functions which control the feature. (Also I don't
particularly want to port all of that to CBS...)
Change-Id: I55da42c44d57252bd47bdcb30431be5e6e90dc56
Reviewed-on: https://boringssl-review.googlesource.com/1061
Reviewed-by: Adam Langley <agl@google.com>
This change adds the infrastructure to use stateful AEADs in ssl/ and
specifically wires in the stitched, RC4-MD5 AEAD. Over time, all
cipher suites will be supported via the AEAD interface and the old
EVP_CIPHER code will die off.
Change-Id: I44ed3ca2672e1342c6b632be08fee9272d113f8e
Reviewed-on: https://boringssl-review.googlesource.com/1044
Reviewed-by: Adam Langley <agl@google.com>
If we need an extension, we can implement it in-library.
Change-Id: I0eac5affcd8e7252b998b6c86ed2068234134b08
Reviewed-on: https://boringssl-review.googlesource.com/1051
Reviewed-by: Adam Langley <agl@google.com>
This gives us systematic bounds-checking on all the parses. Also adds a
convenience function, CBS_memdup, for saving the current contents of a CBS.
Change-Id: I17dad74575f03121aee3f771037b8806ff99d0c3
Reviewed-on: https://boringssl-review.googlesource.com/1031
Reviewed-by: Adam Langley <agl@google.com>
Now that the consuming code in ssl/ is removed, there is no need for this.
Leave SSL_COMP and STACK_OF(SSL_COMP) for now so as not to break any code which
manipulates the output of SSL_COMP_get_compression_methods to disable
compression.
Change-Id: Idf0a5debd96589ef6e7e56acf5d9259412b7d7a1
Fix limit checks in ssl_add_clienthello_tlsext and
ssl_add_serverhello_tlsext.
Some of the limit checks reference p rather than ret. p is the original
buffer position, not the current one. Fix those and rename p to orig so
it's clearer.
This change implements equal-preference groups of cipher suites. This
allows, for example, a server to prefer one of AES-GCM or ChaCha20
ciphers, but to allow the client to pick which one. When coupled with
clients that will boost AES-GCM in their preferences when AES-NI is
present, this allows us to use AES-GCM when the hardware exists and
ChaCha20 otherwise.
This patch removes support for empty records (which is almost
universally disabled via SSL_OP_ALL) and adds optional support for 1/n-1
record splitting.
The latter is not enabled by default, since it's not typically used on
servers, but it should be enabled in web browsers since there are known
attacks in that case (see BEAST).
(Called "cut through" for historical reasons in this patch.)
Enables SSL3+ clients to send application data immediately following the
Finished message even when negotiating full-handshakes. With this
patch, clients can negotiate SSL connections in 1-RTT even when
performing full-handshakes.
Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta).
(This change contains substantial changes from the original and
effectively starts a new history.)
