Using pyCrypto to hash results in a TypeError

Question

I'm trying to use pycrypto for python 3.5.1 on win10
using this simple piece of code for has:

from Crypto.Hash import SHA256  
SHA256.new('abc').hexdigest()

resulting this error:

Traceback (most recent call last):  
  File "E:/Python/C.py", line 2, in <module>  
    SHA256.new('abc').hexdigest()  
  File "E:\Python\lib\site-packages\Crypto\Hash\SHA256.py", line 88, in new
    return SHA256Hash().new(data)
  File "E:\Python\lib\site-packages\Crypto\Hash\SHA256.py", line 75, in new
    return SHA256Hash(data)
  File "E:\Python\lib\site-packages\Crypto\Hash\SHA256.py", line 72, in __init__
    HashAlgo.__init__(self, hashFactory, data)
  File "E:\Python\lib\site-packages\Crypto\Hash\hashalgo.py", line 51, in __init__
    self.update(data)
  File "E:\Python\lib\site-packages\Crypto\Hash\hashalgo.py", line 69, in update
    return self._hash.update(data)
TypeError: Unicode-objects must be encoded before hashing

Anyone know what the problem is?

"Unicode-objects must be encoded before hashing" is pretty clear. — Artjom B., Aug 13 '16 at 18:35
Use the .encode() function on your 'abc' string before running the hashing function, e.g. 'abc'.encode('utf-8') — smoggers, Aug 13 '16 at 18:38

smoggers · Accepted Answer · 2016-08-13T19:23:57.033

0

Use the .encode() function on your 'abc' string before running the hashing function.

For example, if you wish to use Unicode encoding:

'abc'.encode('utf-8')

edited Aug 13 '16 at 19:23

answered Aug 13 '16 at 19:07

smoggers

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score 0 · Answer 2 · answered Aug 13 '16 at 20:02

0

TypeError: Unicode-objects must be encoded before hashing

means you should do something like this:

from Crypto.Hash import SHA256

print(SHA256.new('abc'.encode('utf-8')).hexdigest())

answered Aug 13 '16 at 20:02

BPL

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Using pyCrypto to hash results in a TypeError

2 Answers2