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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 /Include/object.h | |
| 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 'Include/object.h')
| -rw-r--r-- | Include/object.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Include/object.h b/Include/object.h index ef73a21..7848cf4 100644 --- a/Include/object.h +++ b/Include/object.h @@ -473,6 +473,12 @@ PyAPI_FUNC(void) Py_ReprLeave(PyObject *); PyAPI_FUNC(long) _Py_HashDouble(double); PyAPI_FUNC(long) _Py_HashPointer(void*); +typedef struct { + long prefix; + long suffix; +} _Py_HashSecret_t; +PyAPI_DATA(_Py_HashSecret_t) _Py_HashSecret; + /* Helper for passing objects to printf and the like */ #define PyObject_REPR(obj) _PyUnicode_AsString(PyObject_Repr(obj)) |