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Thiago Macieira 09bdf907cf Replace Qt's hashing function with SipHash 
This commit replaces MurmurHash with SipHash for all strings longer than
the size of a pointer. The most important difference between those
algorithms is that MurmurHash has this unwelcome property: for two
byte sequences x and y, if you know that x and y have the same hashing
for a given seed, then they have the same hashing for all seeds.

SipHash has no such issue. If the seed changes, the strings that used to
compute to the same hash are no longer likely to do so.

We've chosen to implement a SipHash-1-2 algorithm instead of the regular
2-4 as that has roughly the same performance as the old DJB33XA
algorithm. It's around 50% slower than MurmurHash, which is
acceptable given the added security.

Task-number: QTBUG-47566
Change-Id: I09100678ff4443e6be06fffd14819c8878d223e2
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
2020-04-09 20:03:52 +02:00
bin CMake: Provide script to configure and build one or more tests 2020-03-23 09:54:48 +01:00
cmake CMake: Handle missing packages in project compile tests 2020-04-09 11:26:42 +02:00
coin Coin: Fix incorrect target OS values used in instructions 2020-04-02 09:39:27 +02:00
config.tests CMake: Skip regeneration of manual compile test project 2020-04-09 11:26:46 +02:00
dist Add changes file for Qt 5.14.2 2020-03-17 06:16:25 +01:00
doc Merge remote-tracking branch 'origin/5.15' into dev 2020-04-08 20:11:39 +02:00
examples Change qHash() to work with size_t instead of uint 2020-04-09 20:03:25 +02:00
lib Purge all fonts 2015-08-18 19:59:14 +00:00
mkspecs Merge "Merge remote-tracking branch 'origin/5.15' into dev" 2020-04-08 22:04:23 +02:00
qmake Change qHash() to work with size_t instead of uint 2020-04-09 20:03:25 +02:00
src Replace Qt's hashing function with SipHash 2020-04-09 20:03:52 +02:00
tests Change qHashBits to use MurmurHash2 2020-04-09 20:03:45 +02:00
util Change qHash() to work with size_t instead of uint 2020-04-09 20:03:25 +02:00
.gitattributes
.gitignore QtNetwork: Delete bearer management 2020-04-05 16:41:08 +02:00
.qmake.conf Bump version 2020-02-02 13:41:14 +01:00
.tag
CMakeLists.txt CMake: Fix pkgconfig calls when cross-compiling 2020-03-26 12:46:16 +01:00
config_help.txt Merge remote-tracking branch 'origin/5.15' into dev 2020-02-26 18:39:21 +01:00
configure Merge remote-tracking branch 'origin/5.15' into dev 2020-04-08 20:11:39 +02:00
configure.bat Don't compile qmake in c++11 mode 2020-02-03 17:43:30 +01:00
configure.cmake CMake: Port the 'static' feature 2020-04-06 21:42:53 +02:00
configure.json CMake: Port the 'separate_debug_info' feature 2020-03-06 13:38:37 +01:00
configure.pri Android: Increase minimum API level to Android-23 / Android 6 2020-03-04 08:28:04 +01:00
dependencies.yaml Re-add dependencies.yaml now that qt5.git wip/qt6 builds fine 2019-09-18 13:19:31 +02:00
header.BSD Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.FDL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.GPL-EXCEPT Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL3-COMM Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-NOGPL2 Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.LGPL-ONLY Use placeholder for year in header.* files 2018-04-16 11:02:22 +00:00
header.MIT qsimd: add support for new x86 CPU features 2018-05-05 06:20:07 +00:00
INSTALL INSTALL: Remove outdated reference to Windows CE 2019-02-13 13:01:57 +00:00
LICENSE.FDL
LICENSE.GPL2 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.GPL3-EXCEPT Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPL3 Add new license header templates and license files 2016-01-14 20:43:46 +00:00
LICENSE.LGPLv3 Remove LICENSE.GPLv3, LICENSE.LGPLv21, LGPL_EXCEPTION.txt 2018-04-16 11:02:14 +00:00
LICENSE.QT-LICENSE-AGREEMENT Update enterprise license agreement v4.2.1 2019-12-18 13:07:19 +02:00
qtbase.pro nuke configure -host-option 2016-12-13 18:55:59 +00:00
sync.profile Move QOpenGLWidget from QtOpenGL to its own module 2020-02-18 09:22:51 +01:00