Question

A Web site requires that users create a password with the following specifications:

(a) Length of 8 to 10 characters
(b) Includes at least one special character {!,@,#,$,%,^,&,*,(,),+,=,{,},|,<,>,\,_,-,[,],/,?}
(c) No spaces
(d) May contain numbers (0–9), lower and upper case letters (a–z,A–Z)
(e) Is case-sensitive.

How many passwords are there? How long would it take to try all passwords if a passwordcan be tested in 1 microsecond?

Answer 1

Some websites only require an eight to ten character password. Other, generally more secure sites, require the password to be eight to ten characters in addition to at least one special character.