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Jouni Malinen d42c477cc7 OpenSSL: Use constant time operations for private bignums 
This helps in reducing measurable timing differences in operations
involving private information. BoringSSL has removed BN_FLG_CONSTTIME
and expects specific constant time functions to be called instead, so a
bit different approach is needed depending on which library is used.

The main operation that needs protection against side channel attacks is
BN_mod_exp() that depends on private keys (the public key validation
step in crypto_dh_derive_secret() is an exception that can use the
faster version since it does not depend on private keys).

crypto_bignum_div() is currently used only in SAE FFC case with not
safe-prime groups and only with values that do not depend on private
keys, so it is not critical to protect it.

crypto_bignum_inverse() is currently used only in SAE FFC PWE
derivation. The additional protection here is targeting only OpenSSL.
BoringSSL may need conversion to using BN_mod_inverse_blinded().

This is related to CVE-2019-9494 and CVE-2019-9495.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2019-04-09 17:11:15 +03:00
doc dbus: Document more possible BSS/RSA/KeyMgmt values 2019-01-24 00:24:09 +02:00
eap_example Use char pointers for EAP configuration parameters without length 2019-03-11 14:09:45 +02:00
hostapd hostapd: Reduce minimum beacon interval from 15 to 10 TUs 2019-04-06 17:05:09 +03:00
hs20 HS 2.0: Make hs20-osu-client SP and <FQDN> directories group writable 2019-02-18 19:54:36 +02:00
mac80211_hwsim/tools Remove obsolete mac80211_hwsim tests 2015-10-01 12:46:10 +03:00
radius_example RADIUS: Redesign Request Authenticator generation 2016-02-06 17:19:35 +02:00
src OpenSSL: Use constant time operations for private bignums 2019-04-09 17:11:15 +03:00
tests tests: Test cases for X.509 certificate checking 2019-04-09 16:24:38 +03:00
wlantest DPP2: Extend wpa_pmk_to_ptk() to support extra Z.x component in context 2019-03-18 01:31:31 +02:00
wpa_supplicant Extend domain_match and domain_suffix_match to allow list of values 2019-04-09 16:24:38 +03:00
wpadebug wpadebug: Improve QR Code scanning with zxing 2018-02-23 16:29:05 +02:00
wpaspy wpaspy: Convert to/from str to bytes as needed for python3 2019-02-04 12:26:33 +02:00
.gitignore gitignore: tests/remote/logs 2017-04-01 17:03:59 +03:00
Android.mk Treat VER_2_1_DEVEL the same as VER_0_8_X 2013-12-14 21:23:39 -08:00
build_release Drop OpenSSL 0.9.8 patches to add EAP-FAST support 2016-01-13 00:17:27 +02:00
CONTRIBUTIONS Update copyright notices for the new year 2019 2019-01-01 23:38:56 +02:00
COPYING Update copyright notices for the new year 2019 2019-01-01 23:38:56 +02:00
README Update copyright notices for the new year 2019 2019-01-01 23:38:56 +02:00

README 

wpa_supplicant and hostapd
--------------------------

Copyright (c) 2002-2019, Jouni Malinen <j@w1.fi> and contributors
All Rights Reserved.

These programs are licensed under the BSD license (the one with
advertisement clause removed).

If you are submitting changes to the project, please see CONTRIBUTIONS
file for more instructions.


This package may include either wpa_supplicant, hostapd, or both. See
README file respective subdirectories (wpa_supplicant/README or
hostapd/README) for more details.

Source code files were moved around in v0.6.x releases and compared to
earlier releases, the programs are now built by first going to a
subdirectory (wpa_supplicant or hostapd) and creating build
configuration (.config) and running 'make' there (for Linux/BSD/cygwin
builds).


License
-------

This software may be distributed, used, and modified under the terms of
BSD license:

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

3. Neither the name(s) of the above-listed copyright holder(s) nor the
   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.