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[arstechnica] 25-GPU cluster cracks every standard Windows password in <6 hours - Page 8

post #71 of 144
Just more evidence to use pass phrases and not passwords...I hate all the systems that require a capital letter or a number or special character. It make it harder to remember and if the length is only eight characters or less...all it will stop from working is a dictionary attack.

take a password like g%gJ26!z Think you would remember that password if you hadn't accessed the system in a year or so? Some people might...I my self have this uncanny ability to remember the password of every server I've ever logged into...and they are all crazy passwords. Yet I will forget a person's name if I haven't seen them for a month quite often. *shrug*

Take a password on a laptop like hahayoucantlogin A computer will never be able to guess that. Unlikely that a person would be able to either. You are as secure as you can get.

You can also apply this to enterprise situations...assuming that it matters and they haven't cracked the hash...even abide by some totalitarian network admin's special character policy. A password like passwordfortheOCNloginserver#1whichrunsonVM#3 A human might be able to guess that if they learned of your company's password policy...but it would be only online guessing, and you could not log into that server for years and know what the password was.

All these gibberish passwords do is cause people to write down the passwords...and that is when bad things happen.
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post #72 of 144
Quote:
Originally Posted by deletethegame View Post

Unsure about your current password?

http://howsecureismypassword.net/

48 THOUSAND YEARS.
post #73 of 144
Quote:
Originally Posted by HardwareDecoder View Post

DNA only changes due to exposure to toxins etc. So I guess it does change over time but not in an ideal circumstance it doesn't. Of course we don't live in a perfect world so mutations do occur.

Mutations does not require toxins....

Also, identical twins have basically the same DNA.

Quote:
Originally Posted by Xinoxide View Post

48 THOUSAND YEARS.
Does the site tell your their assumptions on the methodolgy?

If they are looking at a single-threaded CPU brute-force.... it's going to take long.

However, throw in concepts like rainbow tables, precompiled dictionaries, GPGPU, cipher weaknesses, etc... that number drops fast.
Edited by DuckieHo - 12/10/12 at 8:43am
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post #74 of 144
Quote:
Originally Posted by That Guy View Post

C0r3ll!anBl00d$TR!P3
How long would it take to find that password using this method?

24-48 hours
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post #75 of 144
Quote:
Originally Posted by deletethegame View Post

Unsure about your current password?
http://howsecureismypassword.net/
504 septendecillion years


applaud.gif
post #76 of 144
Quote:
Originally Posted by deletethegame View Post

Unsure about your current password?
http://howsecureismypassword.net/
haha 285 nonillion years
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post #77 of 144
It would take a desktop PC about Infinity years to crack your password

like a boss
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post #78 of 144
Quote:
Originally Posted by DuckieHo View Post

Does the site tell your their assumptions on the methodolgy?
If they are looking at a single-threaded CPU brute-force.... it's going to take long.
However, throw in concepts like rainbow tables, precompiled dictionaries, GPGPU, cipher weaknesses, etc... that number drops fast.

Given the website's default setting refers to a desktop PC cracking the password, it's safe to assume it's single-threaded. Mostly, the site is just for fun.
Edited by deletethegame - 12/10/12 at 9:18am
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post #79 of 144
Quote:
Originally Posted by Vagrant Storm View Post

take a password like g%gJ26!z Think you would remember that password if you hadn't accessed the system in a year or so? Some people might...I my self have this uncanny ability to remember the password of every server I've ever logged into...and they are all crazy passwords. Yet I will forget a person's name if I haven't seen them for a month quite often. *shrug*
Take a password on a laptop like hahayoucantlogin A computer will never be able to guess that. Unlikely that a person would be able to either. You are as secure as you can get.


Once again, we have been around this tree many times. "hahayoucantlogin" would be cracked in a few hours. If not a few minutes. Using a standard rainbow table. Sorry but you just make everything very easy for a normal person to crack.

AS for you g%gJ26!z- Get five girls jogging 26 large zebras. Change the 5 for shift-5, change the l for shift-1 and you have a password that is very easy to remember and impossible to crack.
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post #80 of 144
Another security flaw there is letting your method of pass phrase creation be known. that in and of itself reduces it's effective security.


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.
 
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