1.3 - Encryption

To establish rules for data transmission between devices

To increase the speed of the internet connection

To provide power to network devices

To physically connect computers together

Encrypted data that is unreadable without a decryption key

A type of password used for security

A method of broadcasting data over a network

A device used to secure wireless networks

WEP

WPA

WPA2

FTP

To protect data from unauthorised access

To make data unreadable without a key

To broadcast data openly

To secure data during storage or transmission

Encryption

Compression

Fragmentation

Redundancy

SSID

Password

Ciphertext

Broadcast Data

The key is transmitted with the data.

The key is shared only once at the start.

The key is not transmitted; both sender and receiver use the same master key.

The key changes with every data packet.

Encryption is used to protect data from unauthorized access.

Wireless networks are less vulnerable, so encryption is not necessary.

Wireless encryption protocols include WEP, WPA, and WPA2.

Even wired networks can benefit from encryption as an added precaution.

To increase network speed

To prevent unauthorized access to data

To reduce network congestion

To improve signal strength