chapter 9 Flashcards
1
Q
encryption
A
transform data into something that an attacker can not understand
2
Q
authentication
A
Verifying the identity of a subject.
3
Q
authorization
A
determining wether a subject is permitted to make use of certain services.
4
Q
auditing
A
trace which subjects accessed what, and in which way.
5
Q
The Globus Security Architecture design issues
A
- focus of control.
- laying of security mechanisms.
- simplicity.
6
Q
Symmetric system
A
Use a single key to (1) encrypt and (2) decrypt. Requires that sender and receiver share the secret key.
7
Q
Asymmetric system
A
Use different keys for encryption and decryption, of which one is private, and the other public.
8
Q
Hashing system:
A
Only encrypt data and produce a fixed-length digest. There is no decryption; only comparison is possible.
