What is cryptography, what can I use it for, where are some good sourced where I can learn all about hashing?

I'm familiar with the term "hash", encrypted data that resolves to decrypted data, I have been searching for tutorials online but most of them just give some code and don't really explain how everything works.if anyone can help me that would be cool.

Submitted June 23, 2020 at 04:18AM by BehindTheSpice