STINNER Victor <[email protected]> added the comment:
> At least for Python 2.x hash(str) and hash(unicode) have to yield
> the same result for ASCII only strings.
Ah yes, I forgot Python 2: I wrote my patch for Python 3.3. The two hash
functions should be modified to be randomized.
> hash("") should always return 0
Ok, I can add a special case. Antoine told me that hash("") gives prefix ^
suffix, which is too much information for the attacker :-)
> for small strings we could use a different seed
> than for larger strings
Why? The attack doesn't work with short strings? What do you call a "short
string"?
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<http://bugs.python.org/issue13703>
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