How do you up the maximum character length for passwords in Oracle 9i

 I have modified the verify_password function supplied by Oracle to check that the password has a minimum of 14 characters, but when I went to do an alter user statement to modify the password I got a character length or buffer too large error.  When researching this error on-line it was suggested that I modify the sql.ini file to increase the maximum password length.  Currently my system will only allow up to 10 characters.  Is this the file I need to modify?  and if so, where is the file located?

Thanks in advance.

Noemi