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| author | Georg Brandl <georg@python.org> | 2012-02-20 18:54:16 (GMT) |
|---|---|---|
| committer | Georg Brandl <georg@python.org> | 2012-02-20 18:54:16 (GMT) |
| commit | 2daf6ae2495c862adf8bc717bfe9964081ea0b10 (patch) | |
| tree | ebd7efe668e4f7842c6d51bdbde47b00f92a57db /Doc/library/sys.rst | |
| parent | ec1712a1662282c909b4cd4cc0c7486646bc9246 (diff) | |
| download | cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.zip cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.tar.gz cpython-2daf6ae2495c862adf8bc717bfe9964081ea0b10.tar.bz2 | |
Issue #13703: add a way to randomize the hash values of basic types (str, bytes, datetime)
in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.
The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.
Diffstat (limited to 'Doc/library/sys.rst')
| -rw-r--r-- | Doc/library/sys.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Doc/library/sys.rst b/Doc/library/sys.rst index bb9f920..9594756 100644 --- a/Doc/library/sys.rst +++ b/Doc/library/sys.rst @@ -220,8 +220,12 @@ always available. :const:`ignore_environment` :option:`-E` :const:`verbose` :option:`-v` :const:`bytes_warning` :option:`-b` + :const:`hash_randomization` :option:`-R` ============================= ============================= + .. versionadded:: 3.1.5 + The ``hash_randomization`` attribute. + .. data:: float_info |