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Journey into cryptography

This course contains 7 segments:

Ancient cryptography

Explore how we have hidden secret messages through history.

Ciphers

Assess your understanding of the code breaking presented in the ancient cryptography lesson. This series of articles and exercises will prepare you for the upcoming challenge!

Cryptography challenge 101

Ready to try your hand at real-world code breaking? This adventure contains a beginner, intermediate and super-advanced level. See how far you can go!

Modern cryptography

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This course contains 7 segments:

Ancient cryptography

Explore how we have hidden secret messages through history.

Ciphers

Assess your understanding of the code breaking presented in the ancient cryptography lesson. This series of articles and exercises will prepare you for the upcoming challenge!

Cryptography challenge 101

Ready to try your hand at real-world code breaking? This adventure contains a beginner, intermediate and super-advanced level. See how far you can go!

Modern cryptography

A new problem emerges in the 20th century. What happens if Alice and Bob can never meet to share a key in the first place?

Modular arithmetic

This is a system of arithmetic for integers. These lessons provide a foundation for the mathematics presented in the Modern Cryptography tutorial.

Primality test

Why do primes make some problems fundamentally hard? To find out we need to explore primality tests in more detail.

Randomized algorithms

Would access to coin flips speed up a primality test? How would this work?

This course is no longer available. Find a similar course by searching these:
cryptography history cryptography and national security ancient encryption techniques information security code breaking cryptography and law enforcement

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Career center

Learners who complete Journey into cryptography will develop knowledge and skills that may be useful to these careers:

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Time
3 hours
Via
Khan Academy
This course belongs to a collection called Computer science. It's comprised of six courses:
  1. Algorithms
  2. Journey into cryptography (viewing)
  3. Journey into information theory
  4. How Computers Work
  5. Internet 101
  6. Computers and the Internet
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