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What is Encryption?

Encryption is a way of scrambling data so that only authorized parties can understand the information. In technical terms, it is the process of converting plaintext to ciphertext. 

Lorenz cipher machine twelve rotors with mechanism

(Above) German Lorenz cipher machine, used in World War II to encrypt very-high-level general staff messages

PowerPoint Lesson

Additional Information

https://learn.g2.com/what-is-encryption

https://www.cloudflare.com/learning/ssl/what-is-encryption/

https://searchsecurity.techtarget.com/definition/encryption

https://en.wikipedia.org/wiki/Encryption

Suggested Video

Techquickie: Encryption as fast as possible 

Coding Tech: Cryptography for Beginners (greater depth) 

www.teachyourselfpython.com