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#### Resources tagged with Codes and cryptography similar to One Basket or Group Photo:

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### There are 13 results

Broad Topics > Applications > Codes and cryptography

### Substitution Transposed

##### Stage: 3 and 4 Challenge Level:

Substitution and Transposition all in one! How fiendish can these codes get?

### Keeping it Safe and Quiet

##### Stage: 2, 3, 4 and 5

Simon Singh describes PKC, its origins, and why the science of code making and breaking is such a secret occupation.

### Transposition Cipher

##### Stage: 3 and 4 Challenge Level:

Can you work out what size grid you need to read our secret message?

### Secondary Cipher Challenge Part 1

##### Stage: 3 and 4 Challenge Level:

Here is the start of a six-part challenge. Can you get to the end and crack the final message?

### Cipher Challenge Toolkit

##### Stage: 3, 4 and 5 Challenge Level:

Our toolkit removes the drudgery of codebreaking while leaving you to do the hard thinking!

### Substitution Cipher

##### Stage: 3 and 4 Challenge Level:

Find the frequency distribution for ordinary English, and use it to help you crack the code.

### The Best Card Trick?

##### Stage: 3 and 4 Challenge Level:

Time for a little mathemagic! Choose any five cards from a pack and show four of them to your partner. How can they work out the fifth?

### James's Code Challenge

##### Stage: 2, 3, 4 and 5 Challenge Level:

The Enigma Project's James Grime has created a video code challenge. Watch it here!

### Unlocking the Case

##### Stage: 2 Challenge Level:

A case is found with a combination lock. There is one clue about the number needed to open the case. Can you find the number and open the case?

### Numbered Cars

##### Stage: 2 Challenge Level:

I was looking at the number plate of a car parked outside. Using my special code S208VBJ adds to 65. Can you crack my code and use it to find out what both of these number plates add up to?

### Cracking Codes

##### Stage: 1 and 2

Jenny Murray describes how she developed her interest in making and breaking codes.

### Building up to Coding

##### Stage: 1 and 2

This article describes the underlying mathematical ideas and skills involved in the important mathematical application of coding.

### Some Secret Codes

##### Stage: 2 Challenge Level:

Can you follow the rule to decode the messages?