Securing traffic

Question 1

Ways of securing Email traffic

Answer 1

• S/MIME
• PGP (Pretty Good Privacy)

–> standards for encrypted messages

Question 2

De facto standard for securing web traffic

Answer 2

TLS (Transport Layer Security)

Question 3

What standard has been largley replaced by TLS?

Answer 3

SSL (Secure Sockets Layer)

Question 4

Common standard for encrypting network traffic

Answer 4

IPsec

–> built into many common OS

Question 5

What kind of framework is IPsec?

Answer 5

security architecture framework that supports secure communication over IP

Question 6

IPsec can establish secure channels in two different modes. What modes?

Answer 6

• Tunnel mode

- Transport mode

Question 7

What kind of connection / communication is possible via IPsec?

Answer 7

• direct communication between computers

- communication via VPN connection

Question 8

Two different protocols are used by IPsec? Which protocols?

Answer 8

• AH (Authentication Header)

- ESP (Encapsulating Security Payload)