1. Simple Encryption- Lesson 5
Day 35

2. Review / Quiz
Article Quiz
Review

3. Lesson 5- Simple Encryption
Encryption is a process - an algorithm - for transforming a message so that the original text is hidden from anyone who is not the intended recipient.
This is often called a “secret code.” Reversing the encryption process to reveal the original message is called decryption.
History is full of examples of people encrypting messages and attempting to crack secret codes.

4. Lesson 5- Simple Encryption
Encryption - a process of encoding messages to keep them secret, so only "authorized" parties can read it.
Decrytion - a process that reverses encryption, taking a secret message and reproducing the original plain text
Cipher - the generic term for a technique (or algorithm) that performs encryption
Caesar's Cipher - a technique for encryption that shifts the alphabet by some number of characters.

5. Lesson 5- Simple Encryption
Random Substitution Cipher: an encoding technique that maps each letter of the alphabet randomly to different letters or characters.
Cracking encryption - When you attempt to decode a secret message without knowing all the specifics of the cipher, you are trying to crack the encryption.

6. Lesson 5- Simple Encryption
Clode.org Lesson 5
Go For It!

7. Lesson 5- Simple Encryption
Blown to Bits Reading and Questions

8. Lesson 5- Simple Encryption
Review and Next Class
Happy Thanksgiving