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344 Commits

Author SHA1 Message Date
Manuel Pégourié-Gonnard
352143fa1e Refactor for clearer correctness/security 2015-01-13 12:02:55 +01:00
Manuel Pégourié-Gonnard
e117a8fc0d Make truncated hmac a runtime option server-side 
Reading the documentation of ssl_set_truncated_hmac() may give the impression
I changed the default for clients but I didn't, the old documentation was
wrong.
 2015-01-09 12:52:20 +01:00
Manuel Pégourié-Gonnard
cfa477ef2f Allow disabling record splitting at runtime 2015-01-07 14:56:54 +01:00
Manuel Pégourié-Gonnard
d76314c44c Add 1/n-1 record splitting 2015-01-07 14:56:54 +01:00
Manuel Pégourié-Gonnard
837f0fe831 Make renego period configurable 2014-12-02 10:40:55 +01:00
Manuel Pégourié-Gonnard
b445805283 Auto-renegotiate before sequence number wrapping 2014-12-02 10:40:55 +01:00
Manuel Pégourié-Gonnard
6186019d5d Save 48 bytes if SSLv3 is not defined 2014-12-02 10:40:54 +01:00
Manuel Pégourié-Gonnard
615e677c0b Make renegotiation a compile-time option 2014-12-02 10:40:54 +01:00
Manuel Pégourié-Gonnard
60346be2a3 Improve debugging message. 
This actually prints only the payload, not the potential IV and/or MAC,
so (to me at least) it's much less confusing
 2014-11-27 17:44:46 +01:00
Manuel Pégourié-Gonnard
2457fa0915 Create ticket keys only if enabled 2014-11-27 17:44:45 +01:00
Manuel Pégourié-Gonnard
d16d1cb96a Use more #ifdef's on CLI_C and SRV_C in ssl_tls.c 2014-11-27 17:44:45 +01:00
Manuel Pégourié-Gonnard
8e4b3374d7 Fix some more warnings in reduced configs 2014-11-17 15:06:13 +01:00
Manuel Pégourié-Gonnard
e5b0fc1847 Make malloc-init script a bit happier 2014-11-13 12:42:12 +01:00
Manuel Pégourié-Gonnard
27e3edbe2c Check key/cert pair in ssl_set_own_cert() 2014-11-06 18:25:51 +01:00
Manuel Pégourié-Gonnard
d056ce0e3e Use seq_num as AEAD nonce by default 2014-11-06 18:23:49 +01:00
Manuel Pégourié-Gonnard
9d7821d774 Fix warning in reduced config 2014-11-06 01:19:52 +01:00
Manuel Pégourié-Gonnard
1a03473576 Keep EtM state across renegotiations 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
169dd6a514 Adjust minimum length for EtM 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
08558e5b46 Fix for the RFC erratum 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
313d796e80 Implement EtM 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
0098e7dc70 Preparation for EtM 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
699cafaea2 Implement initial negotiation of EtM 
Not implemented yet:
- actually using EtM
- conditions on renegotiation
 2014-11-05 16:00:50 +01:00
Manuel Pégourié-Gonnard
ada3030485 Implement extended master secret 2014-11-05 16:00:49 +01:00
Manuel Pégourié-Gonnard
367381fddd Add negotiation of Extended Master Secret 
(But not the actual thing yet.)
 2014-11-05 16:00:49 +01:00
Manuel Pégourié-Gonnard
1cbd39dbeb Implement FALLBACK_SCSV client-side 2014-11-05 16:00:49 +01:00
Paul Bakker
82788fb63b Fix minor style issues 2014-10-20 13:59:19 +02:00
Manuel Pégourié-Gonnard
a13500fdf7 Fix bug with ssl_close_notify and non-blocking I/O 2014-08-19 16:14:04 +02:00
Manuel Pégourié-Gonnard
f07f421759 Fix server-initiated renego with non-blocking I/O 2014-08-19 13:32:15 +02:00
Manuel Pégourié-Gonnard
6591962f06 Allow delay on renego on client 
Currently unbounded: will be fixed later
 2014-08-19 12:50:30 +02:00
Manuel Pégourié-Gonnard
f26a1e8602 ssl_read() stops returning non-application data 2014-08-19 12:28:50 +02:00
Manuel Pégourié-Gonnard
55e4ff2ace Tune comments 2014-08-19 11:52:33 +02:00
Manuel Pégourié-Gonnard
8d4ad07706 SHA-2 ciphersuites now require TLS 1.x 2014-08-14 11:34:34 +02:00
Paul Bakker
968afaa06f ssl_key_cert not available in all configurations 2014-07-09 11:34:48 +02:00
Paul Bakker
84bbeb58df Adapt cipher and MD layer with _init() and _free() 2014-07-09 10:19:24 +02:00
Paul Bakker
accaffe2c3 Restructure ssl_handshake_init() and small fixes 2014-07-09 10:19:24 +02:00
Paul Bakker
8f870b047c Add dhm_init() 2014-07-09 10:19:23 +02:00
Paul Bakker
5b4af39a36 Add _init() and _free() for hash modules 2014-07-09 10:19:23 +02:00
Paul Bakker
c7ea99af4f Add _init() and _free() for cipher modules 2014-07-09 10:19:22 +02:00
Paul Bakker
8fb99abaac Merge changes for leaner memory footprint 2014-07-04 15:02:19 +02:00
Manuel Pégourié-Gonnard
481fcfde93 Make PSK_LEN configurable and adjust PMS size 2014-07-04 14:59:08 +02:00
Manuel Pégourié-Gonnard
a9964dbcd5 Add ssl_set_renegotiation_enforced() 2014-07-04 14:16:07 +02:00
Manuel Pégourié-Gonnard
dd0c0f33c0 Better usage of dhm_calc_secret in SSL 2014-06-25 11:26:14 +02:00
Manuel Pégourié-Gonnard
8df68632e8 Fix bug in DHE-PSK PMS computation 2014-06-25 11:26:14 +02:00
Manuel Pégourié-Gonnard
03576887c2 Remove misplaced debugging message 2014-06-25 11:26:13 +02:00
Manuel Pégourié-Gonnard
eaa76f7e20 Fix computation of minlen for encrypted packets 2014-06-25 11:26:12 +02:00
Manuel Pégourié-Gonnard
e800cd81d7 Re-arrange some code in ssl_derive_keys() 2014-06-25 11:26:11 +02:00
Manuel Pégourié-Gonnard
0bcc4e1df7 Fix length checking for AEAD ciphersuites 2014-06-25 11:26:10 +02:00
Manuel Pégourié-Gonnard
4d2a8eb6ff SSL modules now using x509_crt_parse_der() 
Avoid uselessly trying to decode PEM.
 2014-06-23 11:54:57 +02:00
Paul Bakker
66d5d076f7 Fix formatting in various code to match spacing from coding style 2014-06-17 17:06:47 +02:00
Paul Bakker
d8bb82665e Fix code styling for return statements 2014-06-17 14:06:49 +02:00
Paul Bakker
3461772559 Introduce polarssl_zeroize() instead of memset() for zeroization 2014-06-14 16:46:03 +02:00
Manuel Pégourié-Gonnard
7792198a46 Normalize some error messages 2014-06-12 21:15:44 +02:00
Peter Vaskovic
c2bbac968b Fix misplaced parenthesis. 2014-05-28 11:06:31 +02:00
Paul Bakker
b5212b436f Merge CCM cipher mode and ciphersuites 
Conflicts:
	library/ssl_tls.c
 2014-05-22 15:30:31 +02:00
Manuel Pégourié-Gonnard
8ff17c544c Add missing DEBUG_RET on cipher failures 2014-05-22 13:52:48 +02:00
Manuel Pégourié-Gonnard
61edffef28 Normalize "should never happen" messages/errors 2014-05-22 13:52:47 +02:00
Manuel Pégourié-Gonnard
2e5ee32033 Implement CCM and CCM_8 ciphersuites 2014-05-20 16:29:34 +02:00
Manuel Pégourié-Gonnard
5efd772ef0 Small readability improvement 2014-05-14 14:10:37 +02:00
Manuel Pégourié-Gonnard
de7bb44004 Use cipher_auth_{en,de}crypt() in ssl_tls.c 2014-05-14 14:10:36 +02:00
Manuel Pégourié-Gonnard
8764d271fa Use cipher_crypt() in ssl_tls.c 2014-05-14 14:10:36 +02:00
Paul Bakker
b9e4e2c97a Fix formatting: fix some 'easy' > 80 length lines 2014-05-01 14:18:25 +02:00
Paul Bakker
9af723cee7 Fix formatting: remove trailing spaces, #endif with comments (> 10 lines) 2014-05-01 13:03:14 +02:00
Paul Bakker
2a024ac86a Merge dependency fixes 2014-04-30 16:50:59 +02:00
Manuel Pégourié-Gonnard
cef4ad2509 Adapt sources to configurable config.h name 2014-04-30 16:40:20 +02:00
Paul Bakker
1a1fbba1ae Sanity length checks in ssl_read_record() and ssl_fetch_input() 
Both are already covered in other places, but not in a clear fashion. So
for instance Coverity thinks the value is still tainted.
 2014-04-30 14:48:51 +02:00
Manuel Pégourié-Gonnard
3a306b9067 Fix misplaced #endif in ssl_tls.c 2014-04-29 15:11:17 +02:00
Paul Bakker
61885c7f7f Fix false reject in padding check in ssl_decrypt_buf() for CBC ciphersuites 
In case full SSL frames arrived, they were rejected because an overly
strict padding check.
 2014-04-25 12:59:51 +02:00
Paul Bakker
93389cc620 Remove const indicator 2014-04-17 14:44:38 +02:00
Manuel Pégourié-Gonnard
0408fd1fbb Add extendedKeyUsage checking in SSL modules 2014-04-11 11:09:09 +02:00
Paul Bakker
d6ad8e949b Make ssl_check_cert_usage() dependent on POLARSSL_X509_CRT_PARSE_C 2014-04-09 17:24:14 +02:00
Paul Bakker
a77de8c841 Prevent warnings in ssl_check_cert_usage() if keyUsage checks are off 2014-04-09 16:39:35 +02:00
Manuel Pégourié-Gonnard
a9db85df73 Add tests for keyUsage with client auth 2014-04-09 15:50:58 +02:00
Manuel Pégourié-Gonnard
7f2a07d7b2 Check keyUsage in SSL client and server 2014-04-09 15:50:57 +02:00
Paul Bakker
0763a401a7 Merged support for the ALPN extension 2014-04-08 14:37:12 +02:00
Paul Bakker
4224bc0a4f Prevent potential NULL pointer dereference in ssl_read_record() 2014-04-08 14:36:50 +02:00
Manuel Pégourié-Gonnard
0b874dc580 Implement ALPN client-side 2014-04-07 10:57:45 +02:00
Manuel Pégourié-Gonnard
7e250d4812 Add ALPN interface 2014-04-04 17:10:40 +02:00
Paul Bakker
77f4f39ea6 Make sure no random pointer occur during failed malloc()'s 2014-03-26 15:30:20 +01:00
Paul Bakker
91c61bc4fd Further tightened the padlen check to prevent underflow / overflow 2014-03-26 15:14:20 +01:00
Manuel Pégourié-Gonnard
b2bf5a1bbb Fix possible buffer overflow with PSK 2014-03-26 12:58:50 +01:00
Paul Bakker
3d6504a935 ssl_init() left a dirty in_ctr pointer on failed allocation of out_ctr 2014-03-17 13:41:51 +01:00
Manuel Pégourié-Gonnard
83cdffc437 Forbid sequence number wrapping 2014-03-13 19:25:06 +01:00
Manuel Pégourié-Gonnard
796c6f3aff Countermeasure against "triple handshake" attack 2014-03-13 19:25:06 +01:00
Paul Bakker
7dc4c44267 Library files moved to use platform layer 2014-02-06 13:20:16 +01:00
Manuel Pégourié-Gonnard
ab24010b54 Enforce our choice of allowed curves. 2014-02-06 10:28:38 +01:00
Manuel Pégourié-Gonnard
7f38ed0bfa ssl_set_curves is no longer ECDHE only 2014-02-06 10:28:38 +01:00
Manuel Pégourié-Gonnard
ac7194133e Renamings and other fixes 2014-02-06 10:28:38 +01:00
Gergely Budai
e40c469ad3 The default ECDH curve list will be dynamically built in the ecp module based on ecp_supported_curves[]. 2014-02-06 10:28:38 +01:00
Manuel Pégourié-Gonnard
de05390c85 Rename ecdh_curve_list to curve_list 2014-02-06 10:28:38 +01:00
Manuel Pégourié-Gonnard
5de2580563 Make ssl_set_ecdh_curves() a compile-time option 2014-02-06 10:28:38 +01:00
Gergely Budai
987bfb510b Added the possibility to define the allowed curves for ECDHE handshake. It also defines the preference of the curves. 2014-02-06 10:28:38 +01:00
Manuel Pégourié-Gonnard
7c59363a85 Remove a few dead stores 2014-01-22 13:02:39 +01:00
Manuel Pégourié-Gonnard
7cfdcb8c7f Add a length check in ssl_derive_keys() 2014-01-22 12:56:22 +01:00
Paul Bakker
6992eb762c Fixed potential overflow in certificate size in ssl_write_certificate() 2013-12-31 11:38:33 +01:00
Paul Bakker
956c9e063d Reduced the input / output overhead with 200+ bytes and covered corner 
case

The actual input / output buffer overhead is only 301 instead of 512.
This requires a proper check on the padding_idx to prevent out of bounds
reads.

Previously a remote party could potentially trigger an access error and
thus stop the application when sending a malicious packet having
MAX_CONTENT_LEN of data, 32 bytes of MAC and a decrypted padlen of .
This would result in reading from in_ctr + 13 + 32 + MAX_CONTENT_LEN - 1 - 1
for 256 bytes (including fake padding check). Or 13 + 32 bytes over the
buffer length.

We now reset padding_idx to 0, if it's clear that it will never be a
valid padding (padlen > msg_len || msg_len + padlen + 256 > buffer_len)
 2013-12-30 15:00:51 +01:00
Paul Bakker
1e5369c7fa Variables in proper block or within proper defines in ssl_decrypt_buf() 2013-12-19 16:40:57 +01:00
Paul Bakker
fdf946928d Merged support for ECDH-RSA / ECDH-ECDSA key exchanges and ciphersuites 2013-12-17 13:10:27 +01:00
Paul Bakker
77e257e958 Fixed bad check for maximum size of fragment length index 2013-12-17 13:09:12 +01:00
Paul Bakker
6f0636a09f Potential memory leak in ssl_ticket_keys_init() 2013-12-17 13:09:12 +01:00
Manuel Pégourié-Gonnard
d18cc57962 Add client-side support for ECDH key exchanges 2013-12-17 11:32:31 +01:00