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amintos/base64_fixpoint.py

Created February 12, 2013 10:51
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Method generating a string of given length which is its own prefix in base64 encoding.
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base64_fixpoint.py
def base64_fixpoint(prefix_len):
s = 'rofl'
t = 'lol'
while s != t:
s = t
t = s.encode("base64")[:prefix_len]
return t
@niccokunzmann
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Python3:

import base64
base64.b64encode(b"Vm0wd2QyUXlVWGxWV0d4V1YwZDRWMVl3WkRSV01WbD")[:42]
b'Vm0wd2QyUXlVWGxWV0d4V1YwZDRWMVl3WkRSV01WbD'

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