[issue13703] Hash collision security issue

[Martin v. Löwis]

Martin v. Löwis <martin at v.loewis.de> added the comment:

> Given PYTHONHASHSEED, what is the point of PYTHONHASHRANDOMIZATION?

How would you do what it does without it? I.e. how would you indicate
that it should randomize the seed, rather than fixing the seed value?

> On startup, python reads a config file with the seed (which defaults to zero).

-1 on configuration files that Python reads at startup (let alone in a
bugfix release).

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