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| author | Giuseppe D'Angelo <dangelog@gmail.com> | 2012-03-24 08:50:02 +0000 |
|---|---|---|
| committer | Qt by Nokia <qt-info@nokia.com> | 2012-04-14 17:59:26 +0200 |
| commit | c01eaa438200edc9a3bbcd8ae1e8ded058bea268 (patch) | |
| tree | d0067ffcc32322f67f39a326000a32a9a9325658 /tests/auto | |
| parent | c2293c897c9f2e35dffec777c19577c0f6052e81 (diff) | |
QHash security fix (2/2): enable QHash random seed
Algorithmic complexity attacks against hash tables have been known
since 2003 (cf. [1, 2]), and they have been left unpatched for years
until the 2011 attacks [3] against many libraries /
(reference) implementations of programming languages.
This patch makes qHash use the QHash seed introduced in the
previous commits, thus truly randomizing bucketing in QHash.
[1] http://www.cs.rice.edu/~scrosby/hash/CrosbyWallach_UsenixSec2003.pdf
[2] http://perldoc.perl.org/perlsec.html#Algorithmic-Complexity-Attacks
[3] http://www.ocert.org/advisories/ocert-2011-003.html
Task-number: QTBUG-23529
Change-Id: Ibee9cf6aa820af5d777fcde478647665c728052a
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
Diffstat (limited to 'tests/auto')
0 files changed, 0 insertions, 0 deletions