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Created on 2012-01-04 04:58 by Ramchandra Apte, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Messages (3) | |||
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| msg150587 - (view) | Author: Ramchandra Apte (Ramchandra Apte) * | Date: 2012-01-04 04:58 | |
If you run hash on strings containing only null characters it returns the length of the string
>>> hash("\0")
1
>>> hash("\0\0")
2
>>> hash("\0"*1000)
1000
This behaviour is not like proper hash functions.
The hashes of these strings should exhibit the avalanche effect like in a proper hash function.
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| msg150588 - (view) | Author: Benjamin Peterson (benjamin.peterson) *  |
Date: 2012-01-04 05:05 | |
No. Python's dictionary implementation is designed to handle hash functions with the properties of Python's. |
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| msg150590 - (view) | Author: Jesús Cea Avión (jcea) * |
Date: 2012-01-04 05:14 | |
Object hashes are not crypto hashes. Use hashlib module for crypto. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:25 | admin | set | github: 57919 |
| 2012-01-04 05:14:51 | jcea | set | nosy:
+ jcea messages: + msg150590 |
| 2012-01-04 05:05:24 | benjamin.peterson | set | status: open -> closed nosy: + benjamin.peterson messages: + msg150588 resolution: rejected |
| 2012-01-04 05:02:10 | Ramchandra Apte | set | title: hash() on string containing only null characters returns the length of the strings -> hash() on strings containing only null characters returns the length of the strings |
| 2012-01-04 05:01:49 | Ramchandra Apte | set | title: hash() on string containing only null characters returns the length of the string -> hash() on string containing only null characters returns the length of the strings |
| 2012-01-04 04:58:50 | Ramchandra Apte | create | |