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How to choose the right password

January 3rd, 2012 No comments

Password entropy

Let’s apply this to a password. Suppose we are only allowed to use numeric digits in our password. In other words, our password is a PIN that we use to get cash from an ATM. Each character is selected from a set of 10, from 0 to 9. How many bits of entropy are there per character, assuming that each character is going to be selected randomly? Read more…

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