It is weird to think that a 7 character all lowercase password is better than a 5 character alphanumeric with punctuation:
95^5 = 7,737,809,375 26^7 = 8,031,810,176
The seven character lowercase password has slightly more (294,000,801) characters.
But if you increase each type of password by one more character, the lowercase password has about 3 and half times fewer characters.
95^6 = 735,091,890,625 26^8 = 208,827,064,576
I wonder if they go back and forth like that as you add more characters to your passwords. I wonder if the hash cracking times are correspondent to this.
Let’s see…If you only use 11 characters:
and just make your password be a phone number:
It beats all of the above, with a total of 3,138,428,376,721 possible combinations, or 11^12.
It would be really cool to compare the hash cracking times of these kinds of things. I wonder if the limited character set would make the cracking time faster. Freaky.
Er…that phone number actually makes it 9^12, or 282,429,536,481, since it is missing the 5 and 8 characters. But if you add parentheses and a space, you get 12^14 the greatest password of all:
Easy to remember, and it has over 1.2 quadrillion possible combinations: 1,283,918,464,548,860 …until you have to change your phone number. :)