Kid Krypto – Public Key Encryption
Dublin Core
Title
Kid Krypto – Public Key Encryption
Subject
Cryptography, public-key encryption, information security
Description
A classroom activity in which students simulate public-key encryption by using public information to encode a message and a private key to decode it. The activity is designed for whole-class use and includes an interception scenario.
Creator
Computer Science Unplugged; activity authors are Tim Bell, Ian Witten, and Mike Fellows
Source
https://classic.csunplugged.org/activities/public-key-encryption/
Publisher
Computer Science Education Research Group, University of Canterbury / Computer Science Unplugged
Date
2015 (activity included in the 2015 Computer Science Unplugged book edition)
Contributor
Computer Science Unplugged community and translators
Rights
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) for the Classic CS Unplugged website content
Usage Rights: CC BY-NC-SA 4.0 for the website content: attribution and non-commercial use are required.
Usage Rights: CC BY-NC-SA 4.0 for the website content: attribution and non-commercial use are required.
Relation
Computer Science Unplugged; related cryptography and security activities
Format
Web activity; PDF instructions; worksheet/maps; video
Language
English plus translations to Chinese, Polish and Slovenian
Type
Unplugged classroom activity / simulation
Coverage
11 years and up
Website Item Type Metadata
Collection
Citation
Computer Science Unplugged; activity authors are Tim Bell, Ian Witten, and Mike Fellows, “Kid Krypto – Public Key Encryption,” TinkerOER, accessed September 28, 2026, https://tinkeroer.ucd.ie/items/show/64.