Confidentiality: a set of rules or a promise that limits access or places restrictions on certain types of information

Confidentiality: A set of rules or a promise that limits access or places restrictions on certain types of information.

• Confidentiality: A set of rules or a promise that limits access or places restrictions on certain types of information.

• Integrity: Maintaining and assuring the accuracy and consistency of data over its entire life-cycle

• Availability: The degree to which a system, subsystem or equipment is in a specified operable and committable state at the start of a mission,

Suppress data information by removing or modifying data value

• Suppress data information by removing or modifying data value

Modify data value to reduce data informative information based hierarchical attributes

• Modify data value to reduce data informative information based hierarchical attributes

Add noise or change data value

• Add noise or change data value

• Add new record into database as a ‘noise’
• Randomize change data value

Using pseudonyms instead of real direct identifier

• Using pseudonyms instead of real direct identifier

• Single Coding
• Double Coding

• Example

• Original Data: ‘telephone number’ + ‘Age’ + ‘Zip code’
• Replacing Data by a pseud-Id ‘1a2b3C4D’

Refers to the vehicles to vehicles, vehicles to roads, vehicles to people, vehicles to sensing equipment interaction, implement dynamic mobile communication system of the vehicles with the public network.

• Refers to the vehicles to vehicles, vehicles to roads, vehicles to people, vehicles to sensing equipment interaction, implement dynamic mobile communication system of the vehicles with the public network.

Active road safety applications

• Active road safety applications

• Traffic efficiency and management applications

• Infotainment applications

VID revealing

• VID revealing

• Time

• Location

• Technical description

• Trip details

Certificate Cache Lookup Effectiveness (CLE)

• Certificate Cache Lookup Effectiveness (CLE)

• Packet Signature Generations per Second (SGPS)

• Packet Signature Verifications per Second (SVPS)

• Signature Generation Delay (SGD)

• Signature Verification Delay (SVD)

• Pseudonym Change Delay (PCD)

Two terms

• Two terms

• Untraceability: vehicle’s action should not be traced
• Unlinkability: vehicle’s identity should not be identified
• Weak Anonymity: vehicles should not be identified from the messages they send
• Strong Anonymity: no message are linkable vehicles

• Location Privacy

• Location of a vehicle over time should remian private

Two types

• Two types

• Real time (where the vehicle is presently located) or
• Historic (where the vehicle was at a certain time on a certain day).

• Locate and track specific vehicles.

• Location  unique vehicle identifier (or series of identifiers)  an individual (a registered owner).