Login password character limit?

Is there a limit to the number of characters you can use for a login password in OS X 10.4x? The Mac login screen can display 14 characters, but it seems that you can keep typing after 14 (you just can’t see the additional characters).

Thanks,
Kevin


G4 Mac OS X (10.4.7)

Posted on Jul 11, 2006 10:46 AM

Reply
4 replies

Jul 11, 2006 11:05 AM in response to W.J. Llope

note that's the maximum when using the password assistant. not clear if the 31-character limit applies also when you're entering your password by-hand...

would be easy to test locally... set your password temporarily to 32 a's in a row, log out and try to log in again. if you can't log in again, boot off of the tiger install disk and reset your admin password from the menu at the top...

cheers

Jul 12, 2006 3:53 PM in response to W.J. Llope

W.J.,
Thanks for the welcome and the help. I created a test account with a 32-character password (all numbers). I could not log in with the first 31 characters, nor could I log in if I added characters beyond the original 32; only the 32-character password worked.

Next I changed that password to a 50-character password. Again, 49 characters would not work, nor would 51; just the 50-character password would get me logged in.

So, it seems the password character limit is at least 50, but quite possibly more ... I just didn't take the time to enter more numbers to verify it. I'm wondering if the real login password character limit is 256, which from what I've been told is the login character limit on a PC.

I also noticed that I could enter more than 31 characters in the password assistant, even though the slider indicates a limit of 31. And the password I entered (again, a series of numbers) improved in quality as I increased the character count past 31 (think in this case the field itself had room for 39 characters).

In short, I haven't really found the limit to a Mac login password character count.

Kevin



G4 Mac OS X (10.4.7)

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Login password character limit?

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