Cryptography - Aotearoa

Course badge for Cryptography - Cyber Skills Aotearoa

Learn the techniques to start you on your way to becoming a cyber security expert!

This Challenge introduces basic cryptography concepts using data representation, which impacts the way we secure online communication. It teaches classic cryptographic ciphers like rotation, XOR and mixed-substitution, and explains the techniques used to break these forms of encryption. The challenge also explores how cryptography can be used to hide messages in images and sound! Hear from cyber security experts who share what it's like to work in the cyber security industry, and how the skills and knowledge you learn through these activities can set you up for an exciting career after school.

This Challenge is a part of Cyber skills Aotearoa and has been developed by Grok Academy in partnership with CORE Education - Tātai Aho Rau, Te Tāhuhu o te Mātauranga | Ministry of Education, AWS, ASB, BNZ, CERT NZ, The National Cyber Security Centre (NCSC), and te Kāwanatanga o Aotearoa | the New Zealand Government.

Your current score is: 0 points.

1.
Representing data
1. Hidden message 0 /1
2. What's the binary number? 0 /1
3. What's the binary? 0 /1
4. Numbers to Chinese characters 0 /1
5. Find the coordinates 0 /1
6. Secret meeting place 0 /1
7. What's your reaction? 0 /1
2.
Single key ciphers
1. What is the secret key? 0 /1
2. Order the tasks 0 /1
3. Rotation cipher algorithm 0 /1
4. Putting it all together 0 /1
5. The mystery of decryption 0 /1
3.
Frequency analysis
1. Mixed substitution 0 /1
2. Crack this sentence 0 /1
3. Decrypt this song! 0 /1
4. Analyse this well known passage 0 /1
5. Location Vigenère 0 /1
6. Excursion Vigenère 0 /1
7. Party XOR! 0 /1