Chapter 6.7, Problem 3SGDQ

Explanation of Solution

Encryption:

Encryption is a method to convert a plaintext into any other encoded type called cipher text.

• It is an important method to secure the data especially for transmitting data across networks.
• In order to convert the cipher text into its normal text, a decryption key is used to decode the cipher text. This key is available only for an authenticate user.

Advantages of encryption:

It is mainly used on the networks to protect user data such as name, address, account details, passwords, and so on. Because, these data are transmitting between a browser and a server.

• Mostly, many organizations and individuals can commonly use an encryption to protect their sensitive data, which is stored on computers, mobile devices and servers.
• It prevents data from third party unauthorized people for accessing it.

Working principle of encryption:

Encrypting the data is very easy and useful...