Fermat’s factorization method in python

Posted: Νοεμβρίου 26th, 2011 | Author: | Filed under: programming, python | Tags: , , | No Comments »

Few days ago I had to find the prime factors of a very big number N = 23360947609 .
Fermat proposed a method for finding the factors of positive odd integers.
His method is not very efficiently and in general you cannot compute the factors in polynomial time
( this assumption are based many cryptography applications),
but if the factors are close to the square root of N then it is possible.
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AES explained in a comic

Posted: Νοεμβρίου 10th, 2011 | Author: | Filed under: tutorials | Tags: , | No Comments »

The guy has done a nice job with this comic!
http://www.moserware.com/2009/09/stick-figure-guide-to-advanced.html