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Consider the following image:

enter image description here

How can I represent hashcode to binary format (as 0110011)

Thank you

Panayotis Theodorou
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    Since hashcode is str, this is possible duplicate with http://stackoverflow.com/questions/18815820/convert-string-to-binary-in-python – Reci Nov 01 '14 at 00:16

4 Answers4

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>>> import hashlib
>>> s="cat"
>>> hashcode=hashlib.md5(s).hexdigest()
>>> bin(int(hashcode,16))
'0b11010000011101111111001001000100110111101111100010100111000011100101111010100111010110001011110110000011010100101111110011011000'
Irshad Bhat
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Try this:

Originally answered by @Ashwini Chaudhary

''.join(format(ord(n),'b') for n in hashcode)
'11001001100001101111101111100110110010110100110100110010011001011100110111000110000111011111000011001011101011100101110000111011111010111100011000101100100111000110011110101110010110011011000111100100111000'

Another update

Much cleaner approach from @m.wasowski, I am combining his idea to try and solve this (still not sure if this is what exactly OP wants, since lengths of words in sentence are not consistent):

def text_to_bin(text, n_bin=16):
    if n_bin < 16 or n_bin > 36:
        print "n_bin must be >= 16 and <= 36"
    else:
        for word in text.split():
            word_ord = ['{}'.format(bin(int(hashlib.md5(word).hexdigest(), n_bin)))]
            print '{} {}'.format(word, ''.join(word_ord)[2:])

text_to_bin('A cat in the woods', 16)
A 1111111110001010110001001110000111001111010011100001111101010000001101001011001001101011011011100101110101011001011111000101001
cat 11010000011101111111001001000100110111101111100010100111000011100101111010100111010110001011110110000011010100101111110011011000
in 10011101101011011111111101001011011110011111000101111111001000001000111001001111101100110111101001010010110000010101011011111
the 10001111110001000010110001101101110111111001100101100110110110110011101100001001111010000100001101100101000000110100001101010111
woods 10110111101111111011100101001001001001111100010000000101011101111100000100000001100111100000000010000100110101110011001010010111
Community
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Anzel
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  • Thanks for the answer. Is it possible to get a fixed length of hash values for each word in a string? For example "A cat in the woods". I would like to get a hash value of each word (in binary representation) – Panayotis Theodorou Nov 01 '14 at 00:27
  • Is it possible the results from the MD5 ,for each word, to be of fixed length in the form of '100011...'? – Panayotis Theodorou Nov 01 '14 at 00:51
  • @PanosTheo, what do you exactly mean? you want to have fixed length of '100011', like 8b => '00100011'? – Anzel Nov 01 '14 at 00:53
  • What I really want is to create a b-bit binary hash for every word in ,lets say, the above string. What I want to do, in the end, is to make a simhash algorithm so I need the b-bit binary hashes of the words to begin with. (Thank you for bearing with me. I know my English is bad) – Panayotis Theodorou Nov 01 '14 at 00:59
  • Have you read comment from @m.wasowski? I will update the answer with his idea, much cleaner – Anzel Nov 01 '14 at 01:58
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you can use the bin() function

bin(d077ff) # Result: '0b11...'

to remove 0b you can do this:

int(str(temp)[2:])
smushi
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  • Thanks for the answer but the bin() function cannot be used with the above string and it will produce results of uneven length. For example "cat" and "bird" will produce binary with different length. How can I have a fixed length of the result? I hope I was clear. Thanks – Panayotis Theodorou Nov 01 '14 at 00:19
  • why can't bin be used? and of course cat and bird will have different length in binary. I am confused what you mean by that. – smushi Nov 01 '14 at 00:21
  • What I want is to represent each string with a fixed length of a hash value in the form of '0011100011' – Panayotis Theodorou Nov 01 '14 at 00:24
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    that near impossible to do unless your strings are going to fixed length? – smushi Nov 01 '14 at 00:32
  • Is there a way to represent k-bit hash values for each word in a string?Using Adler32 or MD5 algorithms,does the job but the format is not in the form of '100001..'. Is there a way to produce the hash values to this format? – Panayotis Theodorou Nov 01 '14 at 00:39
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    hashes are displayed as hexadecimal, so you can use `bin(int('998fd550322', 16))` – m.wasowski Nov 01 '14 at 00:50
  • @m.wasowski, great call with `int`, I'd love to update my answer using your idea, much cleaner – Anzel Nov 01 '14 at 01:58
  • Thanks for the answer. This approach produces binary hash values with different lengths. I need the hash values to be of fixed length (for example 32 bit) – Panayotis Theodorou Nov 01 '14 at 02:02
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A little late but try this:

binhashcode = ''.join(bin(int(i,16)).zfill(4) for i in hashcode)
Juan Jimenez
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