Please help me with a response to this discussion.Thanks.

Define steganography and discuss a method of how steganography is accomplished.

Steganography is the practice of hiding something (a message, file, picture) in another file. The most prominent example of this would be hiding a message in an image, when done right you can hide a lot of information with the image without noticeably changing it. There are many tools online you can use to hide your message in almost any image file!

What is a cryptosystem and what services can cryptosystems provide? Give an example of a cryptosystem and describe its operation.

A cryptosystem is designed to encrypt and decrypt plain text using keys. Typically, this involves key generation, encryption and decryption. An example of this would be RSA and an example of public/private key cryptography. The public key is used to encrypt data and the private key is used to decrypt messages. Public keys can be shared with anyone to share data with you, but you should keep your private key secure or else your data will not be private anymore.