ALEX Classroom Resource

  

What Is Cryptography?

  Classroom Resource Information  

Title:

What Is Cryptography?

URL:

https://www.khanacademy.org/computing/computer-science/cryptography/crypt/v/intro-to-cryptography

Content Source:

Other
Khan Academy
Type: Informational Material

Overview:

What is Cryptography? A story which takes us from Caesar to Claude Shannon. Created by Brit Cruise.

On the left side of the linked webpage, there are additional resources related to cryptology, including Caesar cipher, polyalphabetic cipher, and the Enigma machine.

Content Standard(s):
Digital Literacy and Computer Science
DLIT (2018)
Grade: 3
1) Use numbers or letters to represent information in another form.

Examples: Secret codes/encryption, Roman numerals, or abbreviations.

Unpacked Content
Evidence Of Student Attainment:
Students will:
  • use numbers and letters to represent information in another form.
Teacher Vocabulary:
  • encryption
  • secret codes
Knowledge:
Students know:
  • techniques for understanding how to representing information in another way using numbers or letters.
Skills:
Students are able to:
  • use letters or numbers to represent information in another form.
  • use a secret code to determine information represented in letters and/or numbers.
Understanding:
Students understand that:
  • numbers and/or letters can represent information in another way.
Digital Literacy and Computer Science
DLIT (2018)
Grade: 4
1) Construct a basic system of numbers, letters, or symbols to represent information as a cipher.

Examples: Combine data from multiple sources, sorting multi-level.

Unpacked Content
Evidence Of Student Attainment:
Students will:
  • construct a basic system of numbers, letters, or symbols to represent information as a cipher.
Teacher Vocabulary:
  • basic system of numbers
  • symbols
  • represent information
  • cipher
Knowledge:
Students know:
  • a basic system of numbers, letters, or symbols can represent information as a cipher.
Skills:
Students are able to:
  • construct a basic system of numbers, letters, or symbols to represent information as a cipher.
Understanding:
Students understand that:
  • a basic system of numbers, letters, or symbols can represent information as a cipher.
Digital Literacy and Computer Science
DLIT (2018)
Grade: 7
9) Identify common methods of securing data.

Examples: Permissions, encryption, vault, locked closet.

Unpacked Content
Evidence Of Student Attainment:
Students will:
  • identify methods of securing data that include both digital and physical options.
Knowledge:
Students know:
  • data needs to be shared but not altered.
Skills:
Students are able to:
  • identify measures to secure data.
Understanding:
Students understand that:
  • data may need to be protected either physically or digitally.
Digital Literacy and Computer Science
DLIT (2018)
Grade: 8
22) Encrypt and decrypt various data.

Example: Create and decipher a message sent in a secret code.

Unpacked Content
Evidence Of Student Attainment:
Students will:
  • encrypt data to include text or files.
  • decrypt data to include text or files.
Teacher Vocabulary:
  • encrypt
  • decrypt
Knowledge:
Students know:
  • cyphers can be used to encrypt and then decrypt a message.
  • that computers use complicated cyphers to keep data safe when being transmitted electronically.
Skills:
Students are able to:
  • either physically or digitally encrypt and decrypt data.
Understanding:
Students understand that:
  • some data needs to be protected as it is transmitted digitally.
Tags: Caesar cipher, cipher, cryptography, Enigma machine
License Type: Custom Permission Type
See Terms: https://www.khanacademy.org/about/tos
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses
AccessibilityVideo resources: includes closed captioning or subtitles
Comments
  This resource provided by:  
Author: Aimee Bates