Protocols Flashcards
1
Q
What is SSL? What is S-HTTP?
How do they work?
A
SSL - Secure Socket Layer protocol: uses public key encryption to secure a channel over the internet.
S-HTTP - Secure Hypertext Transfer Protocol: application of SSL over HTTP, encrypts information passing between computers through protected and secure virtual connections.
2
Q
What is PEM and PGP?
Which cryptosystems do they use?
A
PEM - Privacy Enhanced Mail: uses 3DES symmetric key and standards to function with public key cryptosystems.
PGP - Pretty Good Privacy. Uses IDEA cipher for message encoding (sign, encrypt, decrypt E-Mails).
