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# Encryption-Decryption Challenge: Caesar Cipher - About me!

In this activity, you are going to discover Caesar Cipher that you can use to send secret messages to your friends!

In this activity, you are going to discover Caesar Cipher that you can use to send secret messages to your friends!

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### Encryption-Decryption Challenge: Caesar Cipher - About me!

1. 1. Encryption-Decryption Challenge Caesar Cipher: About me! In this activity, you are going to discover Caesar Cipher that you can use to send secret messages to your friends! Definitions Cryptography is a method of protecting information and communications using codes, so that only those for whom the information is intended can read and process it. Encryption is the process of using an algorithm to transform plain text into cypher text to ensure that sensitive data remains unreadable to unauthorized users. Decryption is the process of transforming data that has been rendered unreadable through encryption back to its unencrypted form. In cryptography, a Caesar Cipher, is one of the simplest and most widely known encryption techniques. It is a type of substitution cipher in which each letter in the plaintext is replaced by a letter some fixed number of positions down the alphabet. For example, with a left shift of 3, D would be replaced by A, E would become B, and so on. The method is named after Julius Caesar, who used it in his private correspondence. Now, we are ready for the Challenge. First, each student will write a paragraph about himself/herself. Then, he/she will encrypt it using Caesar Cipher cycles of the next page and upload the code on the Padlet. Continuously, he/she will try to decrypt another student secret message. Enjoy the activity!
2. 2. Caesar Cipher Cycles
3. 3. encrypt & decrypt messages B E H O X R H N I _ _ _ _ _ _ _ E B I I L J V C O F B K A H _ _ _ _ _ _ _ _ _ _ _ _ Caesar Cipher