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Re: converting strings to hex

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Date Thu, 3 Apr 2014 21:31:42 -0500
From Tim Chase <python.list@tim.thechases.com>
To dave em <daveandem2000@gmail.com>
Subject Re: converting strings to hex
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Xref csiph.com comp.lang.python:69635

Show key headers only | View raw

On 2014-04-03 19:10, dave em wrote:
> So my first step is to compute the key.  I suspect my error below
> is because c1 is a float and m1 is a string but I don't know how to
> turn the string into a float.

For the record, "c1" in your example should be an integer/long

It sounds like you want the optional parameter to int() so you'd do

>>> hex_string = "My text message".encode("hex")
>>> hex_string
'4d792074657874206d657373616765'
>>> m1 = int(hex_string, 16)  # magic happens here
>>> m1
402263600993355509170946582822086501L
>>> c1=0x6c73d5240a948c86981bc294814d 
>>> c1
2199677439761906166135512011931981L
>>> k = m1 ^ c1
>>> k
400239414552556350237329405469124136L
>>> hex(k) # as a string
'0x4d1553a14172e0acebfd68b1f5e628L'


-tkc

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Thread

converting strings to hex dave em <daveandem2000@gmail.com> - 2014-04-03 19:10 -0700
  Re: converting strings to hex Tim Chase <python.list@tim.thechases.com> - 2014-04-03 21:31 -0500
    Re: converting strings to hex dave em <daveandem2000@gmail.com> - 2014-04-03 20:10 -0700
      Re: converting strings to hex Mark H Harris <harrismh777@gmail.com> - 2014-04-03 22:20 -0500
        Re: converting strings to hex dave em <daveandem2000@gmail.com> - 2014-04-03 20:22 -0700
          Re: converting strings to hex Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-04-04 09:14 +0100
  Re: converting strings to hex Mark H Harris <harrismh777@gmail.com> - 2014-04-03 21:38 -0500
    Re: converting strings to hex "James Harris" <james.harris.1@gmail.com> - 2014-04-04 07:16 +0100
      Re: converting strings to hex Mark H Harris <harrismh777@gmail.com> - 2014-04-04 16:33 -0500
        Re: converting strings to hex Chris Angelico <rosuav@gmail.com> - 2014-04-05 09:36 +1100
          Re: converting strings to hex Mark H Harris <harrismh777@gmail.com> - 2014-04-04 18:00 -0500
    Re: converting strings to hex alister <alister.nospam.ware@ntlworld.com> - 2014-04-04 10:07 +0000

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