A program allows a user to save passwords used to login to websites. A stored password is inserted automatically when the user logs into the corresponding website. A student is developing a program to generate a password. The password will be of a fixed format, consisting of three groups of four alphanumeric characters. The groups are separated by the hyphen character '-'. An example of a password is: "FxAf-3haV-Tq49" A global 2D array Secret of type STRING stores the passwords together with the website domain name where they are used. Secret contains 1000 elements organised as 500 rows by 2 columns. Unused elements contain the empty string (""). These may occur anywhere in the array. An example of a part of the array is: Array element | Value ---|--- Secret [27, 1] | "www.thiswebsite.com" Secret [27, 2] | "............." Secret [28, 1] | "www.thatwebsite.com" Secret [28, 2] | "............." Note: • For security, passwords are stored in an encrypted form, shown as "............." in the example. • The passwords cannot be used without being decrypted. • Assume that the encrypted form of a password will not be an empty string. The programmer has started to define program modules as follows: Module | Description ---|--- RandomChar() | • Generates a single random character from within one of the following ranges: | ◦ 'a' to 'z' | ◦ 'A' to 'Z' | ◦ '0' to '9' | • Returns the character Encrypt() | • Takes a password as a parameter of type string | • Returns the encrypted form of the password as a string Decrypt() | • Takes an encrypted password as a parameter of type string | • Returns the decrypted form of the password as a string For reference, relevant ASCII values are as follows: Character range | ASCII range ---|--- 'a' to 'z' | 97 to 122 'A' to 'Z' | 65 to 90 '0' to '9' | 48 to 57