1. Attestation Checkpoint
Jonathan Yang

2. Urban sensing
Sensor data is gathered from mobile devices (cell phones) and sent to a database.
The sensor can be sound detection, image detection, motion detection, etc...
We want the data to be credible to the location and time of the sensor’s reading.

3. Attestation
Provides location credibility by attesting the location measured by the GPS sensor on the device with our own network measurement.
The device connects to the internet through an access point. We have a database with the MAC addresses of the APs along with their GPS locations.
The network checks if the GPS location measured by the device is within a certain radius from the GPS location of the AP. If it is, then we flag the sensor packet as location credible.

4. Last Quarter Accomplishments
Installed software on network server in order to run Nagios.
Nagios is a network monitoring program that checks the status and service (Ping, DNS, NTP, SNMP, etc...) of all the nodes on the network.
Nagios was custom configured for our network use and currently monitors all nodes on the network.
Nagios is needed in order to tell us if any nodes go down in the network.

5. quarter goals
Research a method to intercept sensor data packets on the network. This must be done while it is still possible to determine which AP the packets came from.
Once the packets are intercepted, implement a method to verify the GPS location of the device with the GPS location of the AP.
Test the correctness of the implementation.