Unit 2 Data transmission and encryption T4 Encryption

Presentation

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Computers

•

10th Grade

•

Practice Problem

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Easy

Michael Harrington

Used 10+ times

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11 Slides • 16 Questions

Unit 2 Data transmission and encryption T4 Encryption

By Michael Harrington

Fill in the Blanks

Have you read the lesson objectives?

Understand the need for and purpose of <?> when transmitting data

Fill in the Blanks

Show you have you read the lesson objectives

Understand how data is encrypted using <?> and asymmetric encryption

Open Ended

Why do you think there is need a for encryption?

Type response here

Labeling

In symmetric encryption, a key is first shared between the sender and receiver

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Sender

Plaintext received

password

encryption

Receiver

Secret shared key

Encrypted text

Plaintext sent

Open Ended

What happens to the encryption key in symmetric encryption?

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Open Ended

In asymmetric encryption, two keys are created by the receiver - what are they called?

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Labeling

Asymmetric encryption

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The lazy dog

The quick fox

Symetric

Lock

Generated

Plaintext - Right

Public Key

Encrypted text

Private Key

Plaintext - Left

Multiple Choice

Web pages that are shared using HTTPS make use of encryption - What do these letters stand for?

Hypertext transfer secure protocol

Hypertext Harrington protocol secure

Hyper transfertext protocol secure

Hypertext transfer protocol secure

Multiple Choice

which is -

encode data into an unreadable form

Encrypt

Decrypt

Public key

Symmetric encryption

Asymmetric encryption

Multiple Choice

which is a

a public key is used to encrypt the data; a private key is used to decrypt the data

Encrypt

Decrypt

Public key

Symmetric encryption

Asymmetric encryption

Multiple Choice

which is a -

a key that anyone may see and use to encrypt data before it is sent to someone

Encrypt

Decrypt

Public key

Symmetric encryption

Asymmetric encryption

Multiple Choice

which is a

decode encrypted data back into plaintext

Encrypt

Decrypt

Public key

Symmetric encryption

Asymmetric encryption

Multiple Choice

which is a

a private shared key is used to encrypt and decrypt the data

Encrypt

Decrypt

Public key

Symmetric encryption

Asymmetric encryption

Labeling

Asymmetric encryption

Both keys are generated by the receiver

Add the correct labels

Drag labels to their correct position on the image

Red Key

Green Key

Padlock

Plaintext sent

Sender

Plaintext received

Private key

Encrypted text

Public key

Receiver

Reorder

Reorder the following steps as they occur:

See the diagram which shows how asymmetric encryption is used when transmitting a web page from a server to a user using HTTPS.

Each number is a step

Request the web browser's public key access

Browser sends public key

The server combines the web page with the public key to encrypt the web page

The encrypted page is transmitted

The web broswer's private key is combined with the encrypted web page to decrypt it

Open Ended

Find out what the word symmetry means (if you do not know). Now explain how this word symmetry will help you remember which encryption is which.

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Unit 2 Data transmission and encryption T4 Encryption

By Michael Harrington

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