Privacy Flashcards
(15 cards)
What is Privacy about?
Protecting the connection between and person and their data
3 examples of threats to privacy
1) Distortion 2) Appropriation (using other people’s data for your own gain) 3) Decisional interference (government gets involved with personal choices)
Privacy vs Anonymity
Anon: Confidential Identity. Privacy: Confidential Information
Privacy vs Secrecy
Privacy: Individuals. Secrecy = Organisations
What are PETs?
Privacy Enhancing Technologies
What are the 3 main categories of PETs?
1) Privacy as Confidentiality 2) Privacy as Control 3) Privacy as Practice
Hard vs Soft Privacy Technologies
Soft: ssume third parties can be trusted Hard: third part cannot be trusted
What does VPN do?
Creates a connection to a trusted server, and your internet traffic gets encrypted through this
What 3 things are VPNs useful for?
1) Access company info from outside 2) Anonymise traffic, as ISP only sees you connect to VPN 3) Make your location seem the same as the server’s location
What sort of network design does Tor use?
A Mix Network
What is a Mix?
A Server in a Mix Network
How does a Mix Network work? (4)
1) The sender encrypts the message in layers for each mix using public keys. 2) Each mix decrypts one encryption layer to reveal the next hop and the re-encrypted message. 3) Mixes reorder incoming messages before forwarding them to break the link between input and output. 4) Result data re-encrypted as it goes back on that same path
What is an example of a Mix Network?
Tor
What does Tor also support?
Hidden Services (hide server, e.g. Wikileaks)
What are the 3 steps of evoting?
1) vote online, get code 2) vote codes shown online 3) homomorphic encryption on the votes means the votes can be counted without decrypting them
