Originally Posted by knottyrope
Guess it depends on what he is protecting.
Sometimes opinions are like farts, everyone elses stinks and yours smell great.
You are exactly right -
But if you were protecting the access codes to fort knox you could force a 100 character password that must contain 3 foreign language phrases BUT if the device locks after 5 bad attempts a 4 or 5 digit password would be adequate to secure the device.
My point of view is that with a device like BB that locks after 5 attempts, Entropy and bit strength are less important on those devices since they are essentially secure from brute force attacks
A 4 character password is 10 bits in strength and would require a minimum of 20,000,000,000 attempts to crack - The 5 attempt limit and the remote wipe capability make that impossible
Mine Smell Great ...
Edit - assuming the BB let you try a new password every minute with no wipe - which we know wont/cant happen, it would only take 38,051 years to crack the 4 digit password