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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is symmetric key encryption?
💡 Hint: Think about what makes it secure.
Question 2
Easy
Name one challenge of establishing a common key over a public channel.
💡 Hint: Consider who might be listening.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What is the role of the common key in symmetric encryption?
- To encrypt messages only
- To decrypt messages only
- To both encrypt and decrypt messages
💡 Hint: What happens to a message before it reaches the recipient?
Question 2
True or False: The Diffie-Hellman protocol requires both parties to establish a secure channel before agreeing on a key.
- True
- False
💡 Hint: What is unique about this protocol?
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design your own key exchange protocol similar to Diffie-Hellman, detailing how it could securely share information over a public channel.
💡 Hint: Think about the example of mixing colors and how each participant can add their secret.
Question 2
Critically evaluate the security risks if a common key is not established in secure communications.
💡 Hint: Imagine if anyone could read emails between Sita and Ram!
Challenge and get performance evaluation