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Security and Privacy in Pervasive/Ubiquitous Computing Systems

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Presentation on theme: "Security and Privacy in Pervasive/Ubiquitous Computing Systems"— Presentation transcript:

1 Security and Privacy in Pervasive/Ubiquitous Computing Systems
Chair Professor Chin-Chen Chang Feng Chia University National Chung Cheng University National Tsing Hua University

2 Outline Mobile services Radio Frequency Identification (RFID)
Roaming between cellular network and WLAN MSN lab

3 Mobile services (1/4) MSN lab

4 Mobile services (2/4) MSN lab

5 Mobile services (3/4) MSN lab

6 Treats ? (4/4) User perspective Network perspective Spoofing Framing
Denial-of-service Network perspective Passive Active 1. Eavesdropping 2. Traffic analysis 1. Masquerading 2. Replay 3. Message modification MSN lab

7 Spoofing MSN lab

8 Framing Legitimate? Bogus? MSN lab

9 Denial-of-service MSN lab

10 RFID (1/4) Tag Reader Database Antenna MSN lab

11 RFID (2/4) Shopping Library Transportation Household appliance …
MSN lab

12 Risk? (3/4) Eavesdropping Traffic analysis Replay attack
Position detection Physical attack MSN lab

13 Issue? (4/4) Anonymity -> Privacy Synchronization Authentication
Efficiency MSN lab

14 Roaming (1/3) Access to the Internet anywhere & anytime
Mobile device Base station AP AS ISP WLAN Cellular network AS: Authentication server AP: Access point MSN lab

15 Roaming (2/3) Cellular networks : wide service areas and continuous pervasive access WLAN : high-speed pervasive communications How to integrate? MSN lab

16 Issues? (3/3) Mutual authentication Anonymous service Charging MSN lab

17 Conclusions The biggest risk: eavesdropping
The limitation: power & computing capability MSN lab

18 Security and Privacy in Pervasive/Ubiquitous Computing Systems
MSN lab

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