Aweb 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?