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Password Chart – you want a strong password for nothing?

Paswordchart

Password Chart is an online application to help you create really really strong passwords. These are the sort of passwords your average policeman would have trouble deciphering in a 40 year career. The neat thing is the printable chart for decoding your word or phrase, just don’t lose the chart or its identity number.

  There is no magic snake oil here, its a simple substitution cipher. Here is how the algorithm works: 1. An MD5 hash of the chart selection phrase is performed and the first 4 bytes of the hash is used as a random number seed to a Mersenne Twister pseudo-random number generator. 2. The password chart is then filled using sequences of 1 to 3 random upper and lower case letters and optionally numbers and punctuation by grabbing successive numbers generated from the Twister. The reason for the random sequence length is to make reversing the substitution cipher a bit harder. 3. The alphanumeric characters in the password is then converted using the chart.

Nigel is the managing editor of the Red Ferret, as well as a freelance columnist for the Sunday Times newspaper in London. Loves tech and fancies himself as a bit of a futurist, but then don’t we all?

Nigel – who has written posts on The Red Ferret Journal.


  • Strong passwords are a must and keeping this safe is just as important.
    I work for Passpack which is an online password manager which is an online vault, making your sensitive information available only to you!

    And it generates strong, unique passwords for you.
    Hope it helps!

    Louise

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