Study carefully each one of the following attacking scenarios and choose the security requirement(s) that is (are) required to be achieved and suggested solutions/techniques to achieve them. The following white boxes represent the options for security requirements, and the grey boxes represent the options for the grey boxes. Integrity Integrity and authentication Confidentiality and Integrity Digital Signature Firewall IPSec Confidentiality and authentication Authentication Confidentiality Security requirement: Security solution: Symmetric Encryption and HMAC SSL/TLS PGP Kait Team Scenario 1 Susan is planning to steal Najla's credit card credentials that she uses for online shopping. Security requirement: Security solution: Scenario 2: Ghina is arranging for her graduation party and she is aware that her competitive colleague is planning to take her digital invitations and change the date/time of her party and send it on her behalf. Security requirement Security solution: Scenario 3: Leena and Lamis have email accounts from their company's email server. They have secret keys but they have doubts that the email administrator is reading and modifying their emails