Explain in detail, what is going on in this diagram? Note, you can refer to the Network Security PPT Lecture.

Please type down right here instead of snapping a picture. Thank you!!!

NETWORK SECURITY ASSIGNMENT Original message encrypted using User Y's public key Original message decrypted using User Y's private key OHS TS milk bread eggs cat food ..CIAS User X User Y Don't Forget the chocolate! Cho BAPO Db Sonte il Reply message decrypted using User X's private key Reply message encrypted using User X's public key