Pоtpоurri [2 pоints] Through the speciаl nаture of the Login process interаction between Virtue and Vice, an ephemeral identity and a handshake key to use during that Login session is given by Vice to the Virtue workstation for a legitimate user of AFS. Given this, why can’t Virtue simply use this ephemeral identity and encrypting all the subsequent file system calls that the user makes to the file server using the handshake key? (Multiple choice -- choose 1 by specifying its number) i) Toward off replay attacks ii) Since the handshake key is for one-time use by Virtue iii) To reduce over-exposure of the handshake key within the login session iv) Since the handshake key is valid only for a limited time v) Since the handshake key is valid only for a limited number of calls to the file server