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[arstechnica] 25-GPU cluster cracks every standard Windows password in <6 hours - Page 9

post #81 of 144
Quote:
Originally Posted by u3b3rg33k View Post

let's all type our passwords into this site:
passwordstealerimeanpasswordsecuritychecker.ocn.com.
and see how "secure" they were before we typed them into a website. derp.

website dont work















derp
I should game.
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I should game.
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post #82 of 144
Length is the only determining factor for a random crack. You people telling me I need a % in my 5-character password have no understanding of how this stuff works.

True, a cracker might use only lowercase alpha to speed up the process, but if you used a number their chances of success go to 0, so they have to use the whole dictionary.

Personally, my password is about 20 lowercase alpha chars plus Φ, which requires a non latin dictionary.
Quote:
Originally Posted by RiverOfIce View Post

AS for you g%gJ26!z- [...] you have a password that is pointlessly hard to remember and just as easy to crack

FTFY
Edited by Dyson Poindexter - 12/10/12 at 9:40am
post #83 of 144
major flaw in the assumption of using dna as passcodes
a lot of our dna(not just humans, but mammals, vertebrates, life from earth) has the same sequences so these systems could only work by using the dna that is different, and even so that's a lot of data to process and compare, barring changes(pretty much the only thing that changes dna is ionizing radiation, the stuff that changes a lot is rna), here's the kicker if it's not so discriminating you're family members could get through

and that's just with the dna side, not the conversion side as someone else mentioned earlier

honestly i don't think we'll have to worry all that much about passcodes/phrases/words for some times still, we're probably going to end up using brain scans or something that is highly unique and hard to replicate, like a combination of several different, hell we could use tongue prints, but again the fault would be in the authentication side
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post #84 of 144
Quote:
Originally Posted by somebadlemonade View Post

major flaw in the assumption of using dna as passcodes
a lot of our dna(not just humans, but mammals, vertebrates, life from earth) has the same sequences so these systems could only work by using the dna that is different, and even so that's a lot of data to process and compare, barring changes(pretty much the only thing that changes dna is ionizing radiation, the stuff that changes a lot is rna), here's the kicker if it's not so discriminating you're family members could get through
and that's just with the dna side, not the conversion side as someone else mentioned earlier
honestly i don't think we'll have to worry all that much about passcodes/phrases/words for some times still, we're probably going to end up using brain scans or something that is highly unique and hard to replicate, like a combination of several different, hell we could use tongue prints, but again the fault would be in the authentication side
Pfft.. .I've got you all beat. I just 'provisioned' a mm-wave scanner from the TSA and set it to recognize my body pattern only as a secure login. It makes for a very interesting process sitting down at my computer, BUT it does keep the wife and kids off tongue.gif
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post #85 of 144
Quote:
Originally Posted by Xinoxide View Post

48 THOUSAND YEARS.

I raise you 8 billion years !
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post #86 of 144
Quote:
Originally Posted by Scorpion87 View Post

I raise you 8 billion years !

I maxed it out just by typing the letter 'l', got infinity years
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post #87 of 144
Meh just like that anonymous bs, I use a 15+ alphanumeric password with symbols, upper and lower case. Includes many numbers and letters. I even asked anonymous to hack my router, some idiot tried to connect to it using telnet. Plus disabling autorun is a huge plus in security, if they can't run the programs then they are done before they even get started. Security isn't about making hard passwords, it's about simply not allowing them to try cracking a password.
post #88 of 144
Quote:
Originally Posted by Maelthras View Post

Meh just like that anonymous bs, I use a 15+ alphanumeric password with symbols, upper and lower case. Includes many numbers and letters. I even asked anonymous to hack my router, some idiot tried to connect to it using telnet. Plus disabling autorun is a huge plus in security, if they can't run the programs then they are done before they even get started. Security isn't about making hard passwords, it's about simply not allowing them to try cracking a password.

This approach is for password dumps.... as long as you don't reuse your passwords and you change before they crack yours, you're safe.
Once again...
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Once again...
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post #89 of 144
This is for only 8-digit passwords. What the article doesn't explain is how each digit past 8 dramatically increases the number of possibilities, and thus dramatically increases crack time.

There are 94 possible characters if you include upper case, lower case, numerals, and special characters. Each character adds a power. So, take the number of possible combinations at 8-digits, and then multiply it by 94. 10 characters? Take the number you just got for 9 characters, and multiply that by 94 again. This process can go on and on.

5.5 hours to crack 8 characters they say? Well we're up to almost 21 and a half days just from going to 9 characters. I use 12 characters for absolutely everything.

Even with this hyper-fast, password-cracker GPU cluster, it would take them up to over 49,000 YEARS for a 12-character password. That's right.. add 4 characters and you go from 5.5 hours to 49,000 years.

Use a different, 12-character password for everything and research ways to not compromise yourself on potentially insecure computers, and you have absolutely nothing to worry about (for the most part).
Edited by Kaldari - 12/10/12 at 11:08am
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post #90 of 144
a easy to remember password: 285 nonillion years
heh and i just came up with it,
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