Code Challenge Level 1
Welcome to the School Code Breaking Challenge, Level 1. Solve the clue below and then type the password given in the clue in the link provided below (no capital letters). […]
Code Challenge Level 2
Welcome to the School Code Breaking Challenge, Level 2. Solve the clue below and then type the password given in the clue in the link provided below (no capital letters). […]
Code Challenge Level 3
Murder in the Maths Department! A murder has been committed in the maths department! A body has been discovered surrounded by mathematical objects and only the hardworking maths teachers were […]
Code Challenge Level 4
Murder in the Maths Department A murder has been committed in the maths department! A body has been discovered surrounded by mathematical objects and only the hardworking maths teachers were […]
Code Challenge Level 5
Level 5 Code Number 1 Information: Actually, this is quite a nice gentle start to Level 5 – but don’t worry, they do get harder! When you’ve cracked it, click […]
Code Challenge Level 6
Level 6 Code Number 1 Information: Binary strings are used as a method of transmitting data across large distances (Voyager 1 used this method to transmit pictures from Jupiter in […]
Alan Turing Cryptography Competition
Alan Turing Cryptography Competition Manchester University are running their 5th Alan Turing Cryptography Competition this January. It’s aimed at secondary and post 16 students. If you are in the UK […]
Beale’s Papers and a $65 million uncracked code?
Crack the Beale Papers and find a $65 Million buried treasure? The story of a priceless buried treasure of gold, silver and jewels (worth around $65 million in today’s money) […]
Steganography – How to Hide Codes in Pictures
Code Crackers, can You Find the Hidden Message? The picture above looks like a normal picture of Albert Einstein – one of the world’s greatest ever mathematicians. However, it’s concealing […]
One Time Pad – The Uncrackable Code?
The one time pad is a very secure way of encoding messages – so secure in fact that it is unbreakable as long as the agents using it don’t make […]
Cracking Codes Lesson
Cracking Codes Lesson 1 Introduction: 5 minutes – Use a Morse Code Generator to play some (very slowed down) messages for students to decode. Discuss why this is was a good […]
Crypto Analysis to Crack Vigenere Ciphers
Crypto Analysis to Crack Vigenere Ciphers (This post assumes some familiarity with both Vigenere and Ceasar Shift Ciphers. You can do some background reading on them here first). We can […]
Using Chi Squared to Crack Codes
This is inspired from the great site, Practical Cryptography which is a really good resource for code making and code breaking. One of their articles is about how we can […]
Elliptical Curve Cryptography
Elliptical Curve Cryptography This post builds on some of the ideas in the previous post on elliptical curves. The excellent Numberphile video above expands on some of the ideas below. […]
Cracking ISBN and Credit Card Codes
ISBN codes are used on all books published worldwide. It’s a very powerful and useful code, because it has been designed so that if you enter the wrong ISBN code […]
Aliens and Binary Codes from the Stars
The Drake Equation was intended by astronomer Frank Drake to spark a dialogue about the odds of intelligent life on other planets. He was one of the founding members of […]
