12 Dec 07 Password Length And Crack Time
Under the condition of supposing that password is freely composed with latino letters, we estimated the proper needed crack time. In advance we suppose, common personal user can test 10 password, and the Organize of 100 million budget can get the testing speed of 1000 million password.
In the mean time, we also suppose that cpu will be double each two years, then, as for more than six letters of password, increasing one latino letter will be needed relatively to increase about 9 years for crack time.
based on above conditions, we can get the following crack time:
Password Length Personal User Crack Organize User Crack
1 2 Seconds 1 Second
2 1 Minute 1 Second
3 30 Minutes 1 Second
4 12 Hours 1 Second
5 14 Days 1 Second
6 1 Year 1 Second
7 10 Years 1 Second
8 19 Years 20 Seconds
9 26 Years 9 Minutes
10 37 Years 4 Hours
11 46 Years 4 Days
12 55 Years 4 Months
13 64 Years 4 Years
14 73 Years 13 Years
15 82 Years 22 Years
16 91 Years 31 Years
17 100 Years 40 Years
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