Please enable JavaScript to use CodeHS

Tennessee Cybersecurity I

Cryptography

Students dive into the history of cryptography systems, the motivation behind using encryption systems, and modern cryptography systems. This includes explaining the core concepts of Public Key Infrastructure and hash functions. Students will also explore the importance of digital certificates, and authentication methods.

Lessons

2.1 Cryptography: Then, Now, and Future

  • Cryptography: Then, Now, and Future - Part I
  • Caesar Wheel
  • Cryptography: Then, Now, and Future - Part II
  • Brute Force and Letter Frequency
  • History of Cryptography
  • +3 more

2.2 Symmetric Encryption

  • Symmetric Encryption
  • Enhanced Caesar Cipher
  • Mixed Alphabet Cipher
  • Pigpen Encoder
  • Pigpen Cipher
  • +2 more

2.3 Asymmetric Encryption

  • Asymmetric Encryption
  • Asymmetric Encryption Self-Check
  • Diffie-Hellman Visualizer
  • Diffie-Hellman Visualizer Reflection
  • Public-Key Encryption Explorer
  • +1 more

2.4 Authentication Methods

  • Authentication Methods
  • SSL/TLS Certificates
  • Digital Certificates Response
  • The Handshake
  • The Handshake Response
  • +3 more

2.5 Cryptography Quiz

  • Cryptography Quiz

Courses that include this module