Key Exchange 1.4 Flashcards

1
Q

What is the purpose of a KEY EXCHANGE?

A
  • A central foundational element of a secure symmetric encryption system.
  • Providing another entity a secured key
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How is a KEY EXCHANGE performed using the OUT-OF-BAND EXCHANGE method?

A
  • Performed in person either through telephone, courier, or etc.
  • Keys are not sent over the net.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How is a KEY EXCHANGE performed using an IN-BAND KEY EXCHANGE method?

A
  • Performed on the network.
  • The keys are protected through additional encryption
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Describe a SESSION KEY

A
  • Client encrypts a random (symmetric) key with a server’s public key.
  • The server decrypts this shared key and uses it to encrypt data.
  • These keys are ephemeral, or temporary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly