What is steganography? Do online research about a tool named Open Stego. Discuss the applications of this tool and explain how it can be used. Then, use Open Stego to encrypt and decrypt messages into pictures. Explain the steps you use to find the hidden messages. Command line is the user interface in the computer’s operating system and is built into all computers. Do online research and describe how to perform steganography using the command line.

Solution: the categorization of functional and non-functional requirement are as follows: some of the more typical functional requirements include: • business rules• transaction corrections, adjustments and cancellations• administrative functions• authentication• authorization levels• audit tracking• external interfaces• certification requirements• reporting requirements• historical data• legal or regulatory requirementswhile,some typical non-functional requirements are: • performance – for example response time, throughput, utilization, static volumetric• scalability• capacity• availability• reliability• recoverability• maintainability• serviceability• security• regulatory• manageability• environmental• data integrity• usability• interoperability