The Peruvian Coin Flip - Cryptographic Protocols
This activity shows how to accomplish a simple, but nevertheless seemingly impossible task -making a fair random choice by flipping a coin, between two people who don’t necessarily trust each other, and are connected only by a telephone. The resource begins with a detailed explanation of the activity and suggestions for how to carry out the activity with the class. The variations and extensions cover Boolean logic gates. There is further information about cryptography and logic gates and worksheets for use in the class room. This collection of twenty activities from Computer Science Unplugged is designed to aid the teaching and learning of computer science through engaging games and puzzles using cards, string, crayons and lots of running around.
Show health and safety information
Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.
You might also like
|Subject(s)||Computing, Digital literacy, Algorithms|
|Age||7-11, 11-14, 14-16|
|Published||2000 - 2009|
Share this resource
This resource is part of Computer Science Unplugged
- Computer Science Unplugged
- The Peruvian Coin Flip - Cryptographic Protocols