利用Wi-Fi定位系统监视大众.pdf

1、#BHUSA BlackHatEventsSurveilling the Masses with Wi-Fi Positioning SystemsErik Rye University of Maryland#BHUSA BlackHatEventsErik Rye rye(noun)a cereal plant that tolerates poor soils and low temperatures University of Maryland Comp Sci PhD Student Advised by Dave Levin Research interests Security

2、privacy networks Other interests Dogs Fonts,kerning Telling infants about Arch vit#BHUSA BlackHatEventsWi-Fi Positioning Systems(WPSes)How mobile devices use Wi-Fi routers as landmarks#BHUSA BlackHatEventsWi-Fi Positioning Systems(WPSes)Operated by mobile OS vendors,others -Apple -Google -Microsoft

3、-Skyhook -Mozilla Location Service Apples implementation is uniquely vulnerable to certain attacks#BHUSA BlackHatEvents00:11:22:33:44:55WPS#BHUSA BlackHatEvents00:11:22:33:44:55Basic Service Set Identifier(BSSID)WPS#BHUSA BlackHatEvents00:11:22:33:44:55WPS#BHUSA BlackHatEvents00:11:22:33:44:55I hear

4、 00:11:22:33:44:55 Im at 12.34,56.78WPS#BHUSA BlackHatEvents00:11:22:33:44:55I hear 00:11:22:33:44:55 Im at 12.34,56.78WPS#BHUSA BlackHatEvents00:11:22:33:44:55WPS#BHUSA BlackHatEvents00:11:22:33:44:55WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:77WPS#BHUSA BlackHatEvents

5、66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:77WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:77Where is 22:33:44:55:66:77?WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:77Where is 22:33:44:55:66:77?WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:5

6、5:66:77:88:9922:33:44:55:66:77WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:7722:33:44:55:66:77 is at 12.34,56.67 44:55:66:77:88:99 is at 12.33,56.66 66:77:88:99:aa:bb is at 12.32,56.68 WPS#BHUSA BlackHatEvents66:77:88:99:aa:bb44:55:66:77:88:9922:33:44:55:66:7722:33:44:55: