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Lesson 20 of 20 · about 40 min

Boss level: RSA from scratch

How can you send your card number to a shop you've never met, over a network anyone can listen to? RSA lets anyone lock a message that only one person can unlock. You'll build your own keys, encrypt and decrypt, then switch sides and crack a message whose key is too small.

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This lesson is part of the DoingCamp Pass. Members get every lesson in every course, with all the interactive visuals, coding exercises and challenges.

In this lesson you'll learn:

  • Public-key encryption
  • RSA

Free to try in F06 Discrete Math:

The first 3 lessons of every course are free, no account needed.