Chapter 7

1. What is a password?

   Answer: A password is a word that provides authentication that the user is who she claims to be.

2. What is the process of getting someone to carry out a task for you?

   Answer: Social engineering

3. Are more complex passwords stronger or weaker than simpler passwords?

   Answer: Although a complex password is stronger, the likelihood that a user will do something (for example, write it down) to weaken it is greater.

4. What method should you first use to get a password?

   Answer: Ask the subject for the password.

5. What type of password attack tries passwords from a predefined list?

   Answer: Dictionary attack

6. Which type of password attack uses passwords from a list and then tries variations on each element from the list?

   Answer: Hybrid attack

7. What is an algorithm for encrypting and decrypting data?

   Answer: Cipher

8. What term describes an encrypted message?

   Answer: Ciphertext

9. Which symmetric encryption algorithm is based on the Rijndael cipher?

   Answer: Advanced Encryption Standard (AES)

10. Which symmetric encryption algorithm uses 56-bit keys?

    Answer: DES