Commit graph

3031 commits

Author SHA1 Message Date
Matt Caswell
c8ab3a4653 Make sure we free and cleanse the pms value in all code paths
Otherwise we get a memory leak.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2326)
2017-01-30 22:58:53 +00:00
Dr. Stephen Henson
787ebcafcd Update macros.
Use TLS_MAX_SIGALGCNT for the maximum number of entries in the
signature algorithms array.

Use TLS_MAX_SIGSTRING_LEN for the maxiumum length of each signature
component instead of a magic number.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:18 +00:00
Dr. Stephen Henson
91410d40cb fix style issues
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:18 +00:00
Dr. Stephen Henson
cdf516d988 Fix TLS 1.2 and no sigalgs.
For TLS 1.2 if we have no signature algorithms extension then lookup
using the complete table instead of (empty) shared signature algorithms
list so we pick up defaults.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:17 +00:00
Dr. Stephen Henson
4d43ee28d4 Replace TLS_SIGALGS with SIGALG_LOOKUP
Since every supported signature algorithm is now an entry in the
SIGALG_LOOKUP table we can replace shared signature algortihms with
pointers to constant table entries.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:17 +00:00
Dr. Stephen Henson
8a43a42a02 Support TLS 1.3 signature scheme names.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:16 +00:00
Dr. Stephen Henson
edbfba1a34 Extend TLS 1.3 signature table.
Add additional entries in the TLS 1.2 signature table to include
the name, sig and hash NID (if any) and required curve (if any).

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:16 +00:00
Dr. Stephen Henson
018031faa8 Use shared signature algorithm list to find type.
Lookup the signature type in the shared list: we can use this to
use PSS if the peer supports it for TLS 1.2.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:16 +00:00
Dr. Stephen Henson
42ef7aead2 Add SSL_get_peer_signature_type_nid() function.
Add function to retrieve signature type: in the case of RSA
keys the signature type can be EVP_PKEY_RSA or EVP_PKEY_RSA_PSS.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:16 +00:00
Dr. Stephen Henson
5554facbe7 Store peer signature type.
Store peer signature type in s->s3->tmp.peer_sigtype and check it
to see if the peer used PSS.

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 13:00:16 +00:00
Dr. Stephen Henson
b2eb699874 More complete PSS support.
Extend support for PSS key signatures by using the EVP_PKEY_RSA_PSS type
to distinguish them from PKCS1 signature types.

Allow setting of PSS signature algorithms using the string "PSS" or
"RSA-PSS".

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 12:59:28 +00:00
Dr. Stephen Henson
98c792d18c Use uint16_t for signature scheme.
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 12:59:28 +00:00
Dr. Stephen Henson
968ae5b333 use RSA_PSS_SALTLEN_DIGEST constant
Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2301)
2017-01-30 12:59:28 +00:00
Matt Caswell
1f04f23ef4 Expand comment in tls_process_hello_req()
Following review feedback.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:25 +00:00
Matt Caswell
1b8bacff8c Add a TODO around validating the ticket age
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:25 +00:00
Matt Caswell
40f805ad92 Various style fixes following review feedback
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:25 +00:00
Matt Caswell
61c3264970 Remove unneccessary comments
Now we're using an enum the values themselves are self explanatory

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:25 +00:00
Matt Caswell
fed60a781c Use for loop in WPACKET_fill_lengths instead of do...while
Based on review feedback

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:24 +00:00
Matt Caswell
34f7245ba0 Move the SSL3_CK_CIPHERSUITE_FLAG out of public header
The newly added SSL3_CK_CIPHERSUITE_FLAG shouldn't be in a public header
file

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:24 +00:00
Matt Caswell
1a9f457c66 If we have no suitable PSK kex modes then don't attempt to resume
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:24 +00:00
Matt Caswell
1a3392c878 Fix <= TLS1.2 break
Changing the value of SSL_MAX_MASTER_KEY_LENGTH had some unexpected
side effects in the <=TLS1.2 code which apparently relies on this being
48 for interoperability. Therefore create a new define for the TLSv1.3
resumption master secret which can be up to 64 bytes.

Found through the boring test suite.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:24 +00:00
Matt Caswell
2c0980d2fa Make calls to SSL_renegotiate() error out for TLSv1.3
When we have support for KeyUpdate we might consider doing that instead.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:23 +00:00
Matt Caswell
ddf6ec0069 Make the "ticket" function return codes clearer
Remove "magic" return values and use an enum instead.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:23 +00:00
Matt Caswell
1f5b44e943 Miscellaneous style tweaks based on feedback received
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:23 +00:00
Matt Caswell
6df55cac1a Ensure the al variable is properly ininitialised in all code paths
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:23 +00:00
Matt Caswell
9ac6244b57 Ensure the age_add variable is properly initialised
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:23 +00:00
Matt Caswell
534a43ffea Always ensure that session->cipher is set
If we have deserialized the SSL_SESSION then in some circumstances the
session->cipher value is NULL. We were patching up in some places but not
in others. We should just do it as part of loading the SSL_SESSION.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:22 +00:00
Matt Caswell
4086b42b2d Tweak a comment
psk_kex_mode stores the available modes - not the one which we selected.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
081912943f Use the correct session resumption mechanism
Don't attempt to add a TLS1.3 session to a TLS1.2 ClientHello session
ticket extensions. Similarly don't add a TLS1.2 session to a TLS1.3
psk extension.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
128ae27692 Move session version consistency check
Make sure the session version consistency check is inside
ssl_get_prev_session(). Also fixes a bug where an inconsistent version can
cause a seg fault in TLSv1.3.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
b3ad72ce1d Set the kex modes on the client too.
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
0247086d9a Implement server side of PSK extension construction
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
1053a6e228 Implement Server side of PSK extension parsing
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
71c94d3c61 Make sure we also cleanse the finished key
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:21 +00:00
Matt Caswell
f4bbb37c4c Provide a key_share extension finaliser
This mops up various edge cases with key_shares and makes sure we still
generate the handshake secret if we haven't been provided with one but we
have a PSK.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:20 +00:00
Matt Caswell
4ff65f77b6 Add support for client side parsing of the PSK extension
Requires a refactor of the ServerHello parsing, so that we parse first and
then subsequently process. This is because the resumption information is
held in the extensions block which is parsed last - but we need to know that
information earlier.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:20 +00:00
Matt Caswell
fc24f0bf45 Add support for the age_add field
Update SSL_SESSION to store the age_add and use it where needed.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:20 +00:00
Matt Caswell
ec15acb6bc Construct the client side psk extension for TLSv1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:18:19 +00:00
Matt Caswell
a2b7e65526 Provide a new WPACKET function for filling in all the lengths
For the psk extension we need to fill in all the lengths of the message so
far, even though we haven't closed the WPACKET yet. This provides a function
to do that.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:52 +00:00
Matt Caswell
f05bcf0f45 Never send a session id in TLS1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:52 +00:00
Matt Caswell
e7a28df70b Add a TODO around handling of SSL_get_session() and SSL_get1_session()
These functions are problematic in TLSv1.3 because the server sends the
NewSessionTicket message after the handshake has finished.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:52 +00:00
Matt Caswell
de1df7e9f2 Process incoming NewSessionTicket messages on the client side
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:51 +00:00
Matt Caswell
30f05b19d3 Create the NewSessionTicket message in TLSv1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:51 +00:00
Matt Caswell
b2f7e8c0fe Add support for the psk_key_exchange_modes extension
This is required for the later addition of resumption support.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:49 +00:00
Matt Caswell
cc2455bfa8 Move TLSv1.3 Session Ticket processing into the state machine
We still ignore it for now, but at least its in the right place.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:01 +00:00
Matt Caswell
cda6b99867 Disable requests for renegotiation in TLSv1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:01 +00:00
Matt Caswell
c7f47786a5 Move state machine knowledge out of the record layer
The record layer was making decisions that should really be left to the
state machine around unexpected handshake messages that are received after
the initial handshake (i.e. renegotiation related messages). This commit
removes that code from the record layer and updates the state machine
accordingly. This simplifies the state machine and paves the way for
handling other messages post-handshake such as the NewSessionTicket in
TLSv1.3.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 10:17:00 +00:00
Matt Caswell
0386aad1ab Remove use of the SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS flag
This flag is never set by anything so remove it.

Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 09:36:55 +00:00
Matt Caswell
9799748974 ChangeCipherSpec is not allowed in TLSv1.3
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2259)
2017-01-30 09:36:55 +00:00
Richard Levitte
63414e64e6 Correct pointer to be freed
The pointer that was freed in the SSLv2 section of ssl_bytes_to_cipher_list
may have stepped up from its allocated position.  Use a pointer that is
guaranteed to point at the start of the allocated block instead.

Reviewed-by: Kurt Roeckx <kurt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/2312)
2017-01-28 15:14:07 +01:00