Explain the threat in the following types of authentication and provide a solution for each scenario: - Alice computes the hash of a password and uses it as secret key in challenge / response protocol. - Alice computes the hash of a password and sends it to Bob, who hashes it and compares it against a database of doubly-hashed passwords.

Pseudocode pld #6, pg. 117 start// declarations// number numbertoguess// number myguess; numbertoguess = 92// while myguess ! = numbertoguess// output " guess an integer number between 1 and 100"// input myguess// if (myguess == numbertoguess)// output "you guessed the correct number"// else// output "the number you guessed was incorrect. try again! "// end if// end while// output " for playing the guessing game. have a great day! "// stop