Applications of encryption

Question 1

What is disk encryption?

Answer 1

Technology which protects information by converting it into unreadable code that cannot be easily deciphered.

Question 2

What does disk encryption do?

Answer 2

Encrypts every bit of data and it’s used to prevent unauthorized access to data storage.

Question 3

What keys does disk encryption use?

Answer 3

Password or biometrics (unlock)

Question 4

What are advantages of disk encryption?

Answer 4

-Once files are encrypted they cannot be opened by another user without permission.
-Once encrypted it remains encrypted.
-Use encryption on any files including exe (executable files).

Question 5

What are disadvantages of disk encryption?

Answer 5

-If the password is lost/reset it becomes impossible to access the files on the drive.
-If operating system fails or has to be reinstalled it becomes impossible to access the files.

Question 6

What is email encryption?

Answer 6

Encryption of the message and any attachments to protect from being read by unauthorized person.
Uses asymmetric encryption.

Question 7

What are advantages of email encryption (why use it)?

Answer 7

-Hackers have become more sophisticated (passwords are no longer enough).
-Email providers don’t automatically encrypt.
-Without encryption it’s easy to read messages.
-Recipients server might not be secure.

Question 8

What are disadvantages of email encryption?

Answer 8

-Hackers can still intercept + delete emails (encryption won’t stop it).
-Using a private key for encryption (this can be intercepted).
-Managing digital certificates can be time consuming and complex.