Encoding vs
Encryption
Encoding vs
Encryption
Embedded Files
Encryption
Today's Goal
Today's Goal
Understand an Overview of
Encryption & Cryptography
Completed
What is information?
Number Bases
Encoding
Overflow Errors
Today
What is encryption?
What is cryptography?
Upcoming
Numbers to Letters and Back
Typing Practice
Typing Practice
Start with typing:
https://shaunwegs.github.io/2024/cs/t/index.html
Keep your screenshot, you'll need it later.
Bit Rot
Bit Rot
The video below is with Vint Cerf. Vint Cerf is considered one of the pioneers and 'fathers' of the internet. It's worth knowing who he is.
Sometimes information isn't lost.
Sometimes information is intentionally hidden. Sometimes we want information to be hidden, sometimes we want to gain access to protected information from others.
The video from the NSA is pretty modern, but this isn't specifically a modern thing. We have sought to protect our communications for more than a century, and others have attempted to protect their own national and military secrets long before our country even existed.
What is Cryptography?
What is Cryptography?
When we talk about cryptography, we are talking about hiding a message with encryption.
When we talk about encoding with binary, we're talking about changing how we store data. Both are a transformation of data, but the difference is the intent. If we are transforming the information to hide it or protect it, its encryption. If we are just transforming it so it can exist in a different medium, then its encoding.
So we are talking about protecting and securing information and communication. This is used everyday for things like emails, text messages, logging into websites or services, online payments, credit card transactions, and so on. Majority of internet connected communication today relies on cryptography.
Let's learn a little bit about the core concepts of cryptography before going further.
TASK
TASK
Can you crack a cryptogram?
You can work with a partner on it.
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