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Jouni Malinen 90839597cc SAE: Mask timing of MODP groups 22, 23, 24 
These groups have significant probability of coming up with pwd-value
that is equal or greater than the prime and as such, need for going
through the PWE derivation loop multiple times. This can result in
sufficient timing different to allow an external observer to determine
how many rounds are needed and that can leak information about the used
password.

Force at least 40 loop rounds for these MODP groups similarly to the ECC
group design to mask timing. This behavior is not described in IEEE Std
802.11-2016 for SAE, but it does not result in different values (i.e.,
only different timing), so such implementation specific countermeasures
can be done without breaking interoperability with other implementation.

Note: These MODP groups 22, 23, and 24 are not considered sufficiently
strong to be used with SAE (or more or less anything else). As such,
they should never be enabled in runtime configuration for any production
use cases. These changes to introduce additional protection to mask
timing is only for completeness of implementation and not an indication
that these groups should be used.

This is related to CVE-2019-9494.

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 SAE: Mask timing of MODP groups 22, 23, 24 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.

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   names of its contributors may be used to endorse or promote products
   derived from this software without specific prior written permission.

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