Solidot: 科学家演示劫持游轮的GPS导航系统

Solidot

奇客的资讯，重要的东西

科学家演示劫持游轮的GPS导航系统
http://solidot.org.feedsportal.com/c/33236/f/556826/s/2f462cfc/l/0L0Ssolidot0Borg0Cstory0Dsid0F35763/story01.htm
Jul 29th 2013, 03:15

全球定位系统GPS原是美国军方的卫星导航系统，军方设备接受的信号是加密的，但民用设备接受的信号则是非加密的。非加密的信号容易被干扰甚至是被欺骗。德州大学研究团队利用价值三千美元的设备——包括笔记本电脑、天线和GPS欺骗器，成功控制了地中海上的一艘8千万美元超级游轮的GPS导航系统。这项研究意味着黑客或恐怖分子可以使用欺骗工具设法劫持轮船或商用飞机。GPS接收器跟踪至少4颗GPS卫星的信号以精确判断方位和距离，GPS卫星发射的信号具有特定的模式，为了欺骗接收器，发射器只需要产生模式相同的虚假信号，通过调整模式使接收器错误判断距离。This entry passed through the Full-Text RSS service — if this is your content and you're reading it on someone else's site, please read the FAQ at fivefilters.org/content-only/faq.php#publishers. Five Filters recommends: 'You Say What You Like, Because They Like What You Say' - http://www.medialens.org/index.php/alerts/alert-archive/alerts-2013/731-you-say-what-you-like-because-they-like-what-you-say.html



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