Assignment: Cryptography
1. Hashing
Explain hashing. List the characteristics a hashing algorithm must have to be considered secure. What is a collision? What are the popular hashing algorithms? Is hashing for confidentiality or authentication? Explain.
2. Symmetric and Asymmetric encryption algorithms
What is the difference between symmetric key and asymmetric encryption? What are advantages & disadvantages of each algorithm? When are you going to use symmetric key encryption (or asymmetric encryption)?
Explain how a public key and a private key work in asymmetric encryption. For example, If Bob (as a message sender) wants to encrypt a plain text message M and transmit the ciphertext C to Alice, which key should he use (theoretically, Bob has 4 options to choose from: Alice's public key, Alice's private key,
Bob's public key, and Bob's private key)? What about Alice (she has to decrypt the ciphertext C to read the plaintext M)?
Explain your answer.
What are the most popular symmetric & asymmetric encryption algorithms?
3. Digital Signature
What is a digital signature? When (or why) do you need to use a digital signature? What is the difference between a digital signature and a digital certificate?
4. Digital Certificate
What is a digital certificate? When (or why) do you need to use a digital certificate? What is the difference between a digital signature and a digital certificate?
Format your assignment according to the following formatting requirements:
1. The answer should be typed, double spaced, using Times New Roman font (size 12), with one-inch margins on all sides.
2. The response also includes a cover page containing the title of the assignment, the student's name, the course title, and the date. The cover page is not included in the required page length.
3. Also include a reference page. The Citations and references should follow APA format. The reference page is not included in the required page length.