Posted by
Uppingham
on
- Get link
- X
- Other Apps
CODES & CODE BREAKING
Over the next few days students will be studying codes and learning how to write them and ways of breaking hidden messages. Codes have been used for centuries and by a variety of people. The study of secret codes and methods of breaking these codes is called Cryptology, from the Greek kryptos meaning hidden or secret.
Mary Queen of Scots sent secret messages to Spanish dignitaries supporting an invasion of England and a plan to murder Elizabeth I. Her messages were decoded by Sir Francis Walsingham head of Elizabeth's "Secret Service" which led to her execution in the Great Hall of Fotheringhay Castle in 1587.
We will also look at the enigma code breaking history from World War II where Alan Turing and others at Bletchley Park tried to decode messages that were being sent by the Germans. In addition, we will make and use our own 'enigma machine' as shown below:
Over the next few days students will be studying codes and learning how to write them and ways of breaking hidden messages. Codes have been used for centuries and by a variety of people. The study of secret codes and methods of breaking these codes is called Cryptology, from the Greek kryptos meaning hidden or secret.
In 405 BC the Greek general LYSANDER OF SPARTA was sent a coded message written on the inside of a servant's belt. When Lysander wound the belt around a wooden baton the message was revealed. The message warned Lysander that Persia was about to go to war against him. He immediately set sail and defeated the Persians.
Mary Queen of Scots sent secret messages to Spanish dignitaries supporting an invasion of England and a plan to murder Elizabeth I. Her messages were decoded by Sir Francis Walsingham head of Elizabeth's "Secret Service" which led to her execution in the Great Hall of Fotheringhay Castle in 1587.
We will also look at the enigma code breaking history from World War II where Alan Turing and others at Bletchley Park tried to decode messages that were being sent by the Germans. In addition, we will make and use our own 'enigma machine' as shown below:
 |
| enigma model with rotors, deflector and input/output dials |
Comments
Post a Comment