(2) Encrypt and decrypt two files prepared in Task 4.1 with AES256CBC encryption algorithm. Make sure to use the "-pass" option so that you don't have to manually type in passphrase. Record the time used for encryption and decryption through the above forms of testing. Fill in the following table. Encryption Algorithm File Size Range File Name File Size Encrypt Command Encrypt Time Decrypt Command Decrypt Time AES256 1KB512KB 1MB512MB