Per guidance from your instructor, in a terminal run the following commands: Check the version of OpenSSL by running: openssl version. Create a text file named txt with any text as its contents. Encrypt this file using AES: openssl enc -aes-256-cbc -salt -in test.txt -out test.enc Encrypt this file using AES and Base64 Encode: Same as above but add –a option and use the output enc file as the input into the decrypt. Why would you Base64 encode a file? Decrypt both of the files. Download or locate 2 image files (shown as pic1.png and pic2.png below). Create MD5 Hash on Pic 1 by running: openssl dgst –md5 pic1.png Create MD5 Hash on Pic 2 by running: openssl dgst –md5 pic2.png What is steganography? How could hashing be used to prevent steganography? Create a password by running: openssl passwd [Your Text Here] Take a screenshot of the demonstration.

What is the default permission assigned when you create a file with umask   a. 666 b. 777 c. 022 d. 644

Create a bash script to manage users. The script will take three script arguments: an input filename of users, a group name, and an operation flag. The input filename of users to manage will be a text file with a list of users to add to the system or remove from the system. Each line in the file will contain a User ID and an encrypted password, which are separated by a space character as a delimiter. Your input user file should have at least five users. You will need to encrypt your passwords via the command line using openssl and place the generated password in your input user file. Write a script that adds and removes users to a Linux system using the input file provided to the script. The users should be added to group provided in the script argument. You will want to check if the group already exists. Use an operation of -a to signify to add the users to the system and an operation of -r to signify removing the users from the system. When adding users, make sure you create the…

Using the following data file (delimited by a space or tab) November 400January 200June 400March 200April 200May 300July 400August 300September 400February 300October 300December 200Write a bash script that will use a loop structure to process the data file line by line. Do not use the command awk. The script will send the output to a file in the following format:Month Sales-------- -------January 200February 300March 200April 200May 300June 400July 400August 300September 400October 300November 400December 200======Total show the totalAverage show the average