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Issue #13703: add a way to randomize the hash values of basic types (str, bytes, datetime)

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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.
This commit is contained in:
Georg Brandl 2012-02-20 19:54:16 +01:00
parent ec1712a166
commit 2daf6ae249
32 changed files with 660 additions and 152 deletions
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Include/pythonrun.h
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@ -174,6 +174,8 @@ typedef void (*PyOS_sighandler_t)(int);
PyAPI_FUNC(PyOS_sighandler_t) PyOS_getsig(int);
PyAPI_FUNC(PyOS_sighandler_t) PyOS_setsig(int, PyOS_sighandler_t);
/* Random */
PyAPI_FUNC(int) _PyOS_URandom (void *buffer, Py_ssize_t size);
#ifdef __cplusplus
}