What is the maximum password length for OS X ML?

The usual advice is to use a password of 8 - 10 characters with a mix of numbers, upper and lower case letters, and punctuation.

Here is Apple's official recommendation:  http://support.apple.com/kb/HT1506

Anthony, I don't understand why you are suggesting not to use punctuation.

The reason for the question is I have a yubiey and I am wondering if there is a limit on the length on the password... as it can generate a 48 character password... I wondering if at some point the charters don't matter.