Security Flashcards
1
Q
What is confidentiality
A
Refers to when a message is kept private and secret
2
Q
What is integrity
A
Refers to protection against message tampering
3
Q
What are the two things needed for network security?
A
Both confidentiality and integrity
4
Q
What is the standard of email encryption
A
PGP (pretty good privacy)
5
Q
How does PGP work
A
On installation PGP creates a public, private key pair. There is an option to digitally sign the message, encrypt the message or both. PGP uses MD5 or SHA to compute a message digest and RSA for public key encryption.
6
Q
What is DES?
A
Data Encryption Standard is a US encryption standard which uses a 56bit symmetric key, and a 64bit plaintext input
