md5 to integer bits in python

Question

I'm trying to convert an MD5 hashed value into a a bit integer in python. Does anyone have any idea how I would go about doing this?

I currently go through several ngrams applying a hash to each ngram:

for sentence in range(0,len(doc)):
        for i in range(len(doc[sentence]) - 4 + 1):
            ngram = doc[sentence][i:i + 4]
            hashWord = hashlib.md5()
            hashWord.update(ngram)

Thanks for any help.

Sorry, I probably didn't word it very well. I want to turn the hash into bits. I'm just not really sure how to go about doing it. — djcmm476
– djcmm476, Commented Nov 3, 2012 at 21:24

Jon Clements · Accepted Answer · 2012-11-03 21:27:18Z

39

If by "into bits", you mean a bit string for instance, then something like:

import hashlib

a = hashlib.md5('alsdkfjasldfjkasdlf')
b = a.hexdigest()
as_int = int(b, 16)
print bin(as_int)[2:]
# 11110000110010001100111010111001011010101011110001010000011010010010100111100

answered Nov 3, 2012 at 21:27

Jon Clements

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6 Comments

Joran Beasley Over a year ago

I think he maybe just wants a big int ... but not sure ...(+1 all the same) either way he should be able to get his answer here

Jon Clements Over a year ago

@JoranBeasley Yup - I was thinking that, and if that's the case, the OP can work with as_int... The bitstring was just an example

DSM Over a year ago

Wow, this takes me back. Getting an integer from a hash was the very first question I answered on SO!

Jon Clements Over a year ago

@DSM wow! Well, with 20k on the clock you've come a long way since then!

djcmm476 Over a year ago

Clements, you hero, you. That's exactly what I was looking for. A correct answer tick to you, sir!

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