Uncover key concepts in cryptography in the 33rd installment of a computer science series. An engaging video describes various encryption methods. It explains substitution ciphers, permutation ciphers, the Enigma machine, advanced encryption standard (AES), Diffie-Hellman key exchange, and RSA public key cryptography.

Concepts

computer science, cryptography, cipher, technology resources

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Instructional Ideas

• Have learners write a journal entry distinguishing between symmetric and asymmetric encryption

Classroom Considerations

• References a previous video in the Crash Course Computer Science series
• Pupils must have experience with exponents and modular arithmetic

• This video is hosted on YouTube

Pros

• Uses metaphors to help explain complex ideas
  
• Narrator is enthusiastic about the topic and holds viewer interest

Cons

• None