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    Bruteforce calculator?

    Discussion in 'Windows OS and Software' started by Hungry Man, Apr 30, 2011.

  1. Hungry Man

    Hungry Man Notebook Virtuoso

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    Anyone know of a calculator I can run that'll show the security based on modern GPGPU's, multiple computers, and based on the password I input?
     
    Hungry Man, Apr 30, 2011
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  2. newsposter

    newsposter Notebook Virtuoso

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    like a password cracker? Such discussion isn't looked on too kindly here.....
     
    newsposter, Apr 30, 2011
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  3. Hungry Man

    Hungry Man Notebook Virtuoso

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    No... not a password cracker. A calculator that shows how long a password would take to bruteforce based on current GPGPU speeds/ number of computers/ strength of password.
     
    Hungry Man, Apr 30, 2011
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  4. Hungry Man

    Hungry Man Notebook Virtuoso

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    Isn't there password entropy and crap like that?
     
    Hungry Man, Apr 30, 2011
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  5. HerrKaputt

    HerrKaputt Elite Notebook User

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    Variables that you need:

    1) How many symbols each "digit" of the password can have. If it's lower-case letters, upper-case letters and numbers only, for example, it's 26+26+10 = 62.
    2) How many "digits" the password can have. If the number of "digits" is variable, it's a bit trickier. If it's fixed, say 8 "digits", then the number of possible passwords if 62^8.
    3) How long it takes to test a password to see if it's right or wrong.

    In the example above, if it takes you a millisecond (= 0.001 seconds) to test each password, you'd take (62^8)*0.001 = 218340105584.896 seconds to test all the passwords, which is over 415441 years.

    I'm clueless however on what the true value of point 3 is given current technology.

    By the way, 256-bit encryption (used in online banking etc) has 2 possible symbols only (0 and 1), and 256 "digits". That's 2^256 which is about 10^77 possible passwords!
     
    HerrKaputt, Apr 30, 2011
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  6. Hungry Man

    Hungry Man Notebook Virtuoso

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    Thanks for the info.
     
    Hungry Man, Apr 30, 2011
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  7. Baserk

    Baserk Notebook user

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    ' Hammer of God' website password checker does the calculations. link.

    ' Lockdown' website mentions the different classes used on Hammer of God; link
     
    Baserk, Apr 30, 2011
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  8. Hungry Man

    Hungry Man Notebook Virtuoso

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    thanks very much! That looks perfect.

    edit: It gives 256 "infinity" but I guess that's all good lol
     
    Hungry Man, Apr 30, 2011
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