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Codebusters

Division: A- Elementary School

NC Essential Standards Alignment: Science as Inquiry

Event Rules: Codebusters Rules 2023 – Coming Soon

Event Score Sheet: None

Clarifications: None

Description:

Teams will cryptanalyze (decode) encrypted messages using cryptanalysis techniques and show skill with ciphers by decrypting a message.

Materials:

Teams must bring a writing utensil. No other resources are allowed.

Scoring:

High score wins

Common Mistakes:

  • Students do not have to work through each cipher together – divide and conquer the test!  You are allowed to take it apart.

FAQs

Will the students be given the Caesar offset number or will they have to figure it out?

– If we give the Caesar offset, it will be worth less than if we don’t, but they might see it both ways!

What is the best way to study for this test?

  • make test in the Codebusters tool – this is how all the tests will be made this year, so students should get used to the format.  They can make ciphers for each other too – you can’t break it, let them take a sentence and change the cipher type to see how it changes what will print on the page!

Fast Facts:

None

Event Resources:

The State event supervisor for Codebusters has set up a twitter handle to send out tips and tricks.  @NCSO_cb
 
 
Hill Cipher
Affine Cipher
   Encode/Decode Tool:   http://www.dcode.fr/affine-cipher
 
Vigenere Cipher
 
 
Media:

None