Encrypting Data 1.4

Question 1

What is DATA AT REST?

Answer 1

• Data stored on a storage device which can include SSD, hard drive, USB drive, or a cloud storage.

Question 2

What is the purpose of an ENCRYPTED FILE SYSTEM?

Answer 2

• A security feature of Windows.
• Enables transparent encryption/decryption of files on the system.
• Enabled under the attributes menu.

Question 3

What is the purpose of TRANSPARENT ENCRYPTION?

Answer 3

• Used to encrypt database information with a symmetric key.
• Encrypts or decrypts data each time it is pulled from the data base.

Question 4

How does RECORD LEVEL ENCRYPTION encrypt data on the database?

Answer 4

• Encrypts individual columns.
• Use separate symmetric keys for each column.

Question 5

What is TRANSPORT ENCRYPTION?

Answer 5

• Protecting data transversing the network.

Question 6

How is TRANSPORT ENCRYPTION accomplished?

Answer 6

• HTTPS encrypt data being transported through browser applications.
• VPN encrypts all data transmitted over the network.

Question 7

What is the purpose an ENCRYPTION ALGORITHM?

Answer 7

• A formula used on both sides to provide the encryption process and a way to decrypt the data on the other side.
• Hidden from end users.

Question 8

Describe the importance of keep the PRIVATE KEY private?

Answer 8

• The cryptographic process is a widely known process, however, the only way to gain access to a system using a cryptographic process is by knowing the private key.

Question 9

How does KEY LENGTHS address brute force attacks?

Answer 9

• Creating keys that are larger increasing the amount of permutations an attacker must go through.

Question 10

Describe an SYMMETRIC ENCRYPTION

Answer 10

• A very common key
• 128 bit or larger
• Will increase as time goes on

Question 11

Describe an ASYMMETRIC ENCRYPTION

Answer 11

• Complex calculations of prime numbers
• Larger keys than symmetric encryption
• Common to see key lengths of 3, 072 bits or larger