[squid-users] How to enable these FEATURES in SQUID

Hi,

I want to enable below fetures in SQUID.

features are,

when users access Internet with nsca_auth featue, They are asked to
type username and password.

 Can I set a life time (5 days or 2 weeks like that) to that password
.when that time period expires, Users SHOULD change their passwords.

password should have below fetures.

to add the new passwrd, old password should be entered.
it should contain both numbers and letters.
minimum lenth of the password should be 8 characters.

 Finally,

I need a Password change log too.

YOUR COMMENTS?

-- 
Thank you
Indunil Jayasooriya