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Activity

Kid Krypto–Public-Key Encryption

Curated and Reviewed by Lesson Planet
This Kid Krypto–Public-Key Encryption activity also includes:

Class members have an opportunity to experience how to use a public key to encrypt information and a private key to decrypt it. Groups create their own public key and encrypt information then develop private keys to decrypt this material. The activity is the last part in a three-part series on encryption.

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Concepts
cryptography, cryptograms, cryptology, the internet, technology resources
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Instructional Ideas
  • If the class is not familiar with one-way functions, provide instruction on them
  • Show the video before starting the activity
Classroom Considerations
  • Needs either a transparency or way of projecting the black line master
Pros
  • Makes comparisons between private padlocks to encryption
  • Provides a detailed example on how a public key works
Cons
  • Requires concentration and precision in order to successfully complete the activity