Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of encryption?
💡 Hint: Think about what needs to be kept secret.
Question 2
Easy
What is ciphertext?
💡 Hint: Consider what happens to a message when it's encrypted.
Practice 4 more questions and get performance evaluation
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does encryption do to a message?
💡 Hint: Consider the goal of encryption.
Question 2
True or False: The same key is used for both encryption and decryption in symmetric encryption.
💡 Hint: Think about the symmetry in the name.
Solve 1 more question and get performance evaluation
Push your limits with challenges.
Question 1
Investigate a scenario where an attacker has intercepted a key exchange using Diffie-Hellman. What consequences arise if the discrete logarithm problem is easily solvable?
💡 Hint: Consider the implications of breaking the underlying math principle.
Question 2
Explain how symmetric encryption can be undermined in the case of key exposure. Provide an analysis of possible breaches.
💡 Hint: Think about how a lost key might affect the security of a lock.
Challenge and get performance evaluation