Resources tagged with: Codes and cryptography

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There are 18 results

Broad Topics > Cross-curricular Contexts > Codes and cryptography

Up a Semitone?

Age 16 to 18
Challenge Level

Fifth challenge cipher

Jluuis or Even Asutguus?

Age 16 to 18
Challenge Level

Sixth challenge cipher

A Fine Thing?

Age 16 to 18
Challenge Level

Second challenge cipher

Vital?

Age 16 to 18
Challenge Level

Third challenge cipher

Semicircle

Age 16 to 18
Challenge Level

Fourth challenge cipher

Stage 5 Cipher Challenge

Age 16 to 18
Challenge Level

Can you crack these very difficult challenge ciphers? How might you systematise the cracking of unknown ciphers?

Probably a Code?

Age 16 to 18
Challenge Level

Is the regularity shown in this encoded message noise or structure?

Ip?

Age 16 to 18
Challenge Level

Seventh challenge cipher

Keeping it Safe and Quiet

Age 14 to 18

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

Cipher Challenge Toolkit

Age 11 to 18
Challenge Level

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

More Secret Transmissions

Age 16 to 18
Challenge Level

In 'Secret Transmissions', Agent X could send four-digit codes error free. Can you devise an error-correcting system for codes with more than four digits?

A Roman Conversion?

Age 16 to 18
Challenge Level

First cipher

James's Code Challenge

Age 7 to 18
Challenge Level

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

The Best Card Trick?

Age 11 to 16
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?

Transposition Cipher

Age 11 to 16
Challenge Level

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

Substitution Transposed

Age 11 to 16
Challenge Level

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

Secondary Cipher Challenge Part 1

Age 11 to 16
Challenge Level

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

Secret Transmissions

Age 14 to 16
Challenge Level

How can Agent X transmit data on a faulty line and be sure that her message will get through?