Pretty Good Privacy, a public key encryption method

CNG133_Easttomv4_Ch08 Flashcards

1

Which of the following is most true regarding binary operations and encryption?

2

Which of the following is the oldest encryption method discussed in this text?

3

What size key does a DES system use?

4

Which of the following methods is available as an add-in for most email clients?

5

Why is binary mathematical encryption not secure?

6

What is PGP?

7

Which of the following is a symmetric key system using 64-bit blocks?

8

What advantage does a symmetric key system using 64-bit blocks have?

9

What type of encryption uses different keys to encrypt and decrypt the message?

10

Many classic ciphers are easy to understand, but not secure. What is the main problem with simple substitution?

CNG133_Easttomv4_Ch08