1. Create a group named group1 and three users named user1, user2 and user3. Assign user1 to group 1 and then create a file named hello.c by logging into user2 with following permissions-

Use public-key cryptography with asymmetric encryption. Cryptography employs public keys.

Question 9  Full explain this question and text typing work only thanks

How long did it take to send all five pieces of information?

How many separate keys need to be created in order to utilize public key cryptography, and how many different keys are really in use at the moment?