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folsen/gist:1252103

Created September 29, 2011 22:21
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Plotting password strength
Raw
gistfile1.matlab
% Word passwords
w = @(x) 20000.^x;
% Letter passwords (big and small letters a-Z)
l = @(x) 54.^x;
% Alphanumeric passwords (0-9 a-Z and !"#€%&/()=?_-)
an = @(x) 77.^x;
X = 0:20;
semilogy(X,w(X),'b',X,l(X),'r',X,an(X),'k')
hold on
semilogy([0,20], w([4,4]),'m')
legend('Words', 'Letters', 'Alphanumerical')
xlabel('Password length (Number of #)')
ylabel('Possible combinations (Strength)')
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