16.3.2. Security Property

Try these first

1. 1.

   What does a public key cryptography system use?

   Hint

   Think about the roles of each type of key.

2. 2.

   What is the main disadvantage of the Diffie-Hellman protocol?

   Hint

   Consider the challenges posed in asynchronous communication.

3. 3.

   What is the primary advantage of public key cryptography?

   • It requires less computation
   • It simplifies key distribution
   • It is faster than symmetric key cryptography

   Hint

   Consider the problems with shared keys in symmetric systems.

4. 4.

   The Diffie-Hellman protocol requires both parties to be online.

   • True
   • False

   Hint

   Think about what happens during key exchanges.

5. 5.

   Consider an organization using RSA for secure communication. If the organization’s private key is compromised, what steps should they take to secure their communications again, and why?

   Hint

   Focus on the importance of key integrity.

6. 6.

   Explain how the concept of public key cryptography can be applied to secure online transactions.

   Hint

   Consider real-world applications in e-commerce.