{"id":1988,"date":"2017-05-24T01:02:33","date_gmt":"2017-05-24T01:02:33","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=1988"},"modified":"2017-05-24T01:03:04","modified_gmt":"2017-05-24T01:03:04","slug":"contexiot-%e4%b8%ba%e5%ba%94%e7%94%a8%e5%8c%96%e7%9a%84iot%e5%b9%b3%e5%8f%b0%e6%8f%90%e4%be%9b%e5%9c%ba%e6%99%af%e5%ae%8c%e6%95%b4%e6%80%a7","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=1988","title":{"rendered":"ContexIoT: \u4e3a\u5e94\u7528\u5316\u7684IoT\u5e73\u53f0\u63d0\u4f9b\u573a\u666f\u5b8c\u6574\u6027"},"content":{"rendered":"

ContexIoT: \u4e3a\u5e94\u7528\u5316\u7684IoT\u5e73\u53f0\u63d0\u4f9b\u573a\u666f\u5b8c\u6574\u6027<\/strong><\/p>\n

\u4f5c\u8005\uff1a\u8d3e\u4e91\u701a\u00a0 \u00a0\u5bc6\u897f\u6839\u5927\u5b66<\/p>\n

\u7269\u8054\u7f51\uff08IoT) \u8bbe\u5907\u5df2\u7ecf\u8fdb\u5165\u4e86\u65e5\u5e38\u751f\u6d3b\u4e2d\u7684\u5404\u4e2a\u9886\u57df\uff0c\u5e76\u4e14\u968f\u7740\u6280\u672f\u7684\u53d1\u5c55\uff0cIoT\u8bbe\u5907\u5e02\u573a\u5df2\u7ecf\u4ece\u6700\u521d\u7684\u4e0d\u540c\u5382\u5bb6\u63a8\u51fa\u56f4\u7ed5\u81ea\u5bb6\u786c\u4ef6\u7684\u4e00\u5957\u5c01\u95ed\u7684\u751f\u6001\u7cfb\u7edf \uff08\u4f8b\u5982 \u98de\u5229\u6d66 Hue \u7167\u660e\u7cfb\u7edf\uff09\uff0c\u53d1\u5c55\u5230\u4e86\u4e00\u79cd\u88ab\u79f0\u4e4b\u4e3a\u201c\u5e94\u7528\u5316\u201d(appified) \u7684\u65b0\u9636\u6bb5\u3002 \u5728\u4e00\u4e2aappified \u7684\u5e73\u53f0\u4e4b\u4e0a\uff0c \u4efb\u4f55\u7b2c\u4e09\u65b9\u7684\u5f00\u53d1\u8005\u88ab\u5141\u8bb8\u4e3a\u8fd9\u4e2a\u5e73\u53f0\u5f00\u53d1\u5e94\u7528\u7a0b\u5e8f\uff08app\uff09\uff0c \u53bb\u63a7\u5236\u6765\u81ea\u4e0d\u540c\u5382\u5bb6\u7684IoT\u8bbe\u5907\u6765\u66f4\u597d\u5730\u4e3a\u7528\u6237\u63d0\u4f9b\u4fbf\u5229\u7684\u529f\u80fd\u3002 \u4e09\u661f\u63a8\u51fa\u7684SmartThings \u5e73\u53f0\u4fbf\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0c\u5b83\u652f\u6301\u4e86\u6765\u81ea\u4e0d\u540c\u5236\u9020\u5546\u768480\u591a\u79cdIoT\u8bbe\u5907\uff0c\u5e76\u4e14\u4e3a\u7b2c\u4e09\u65b9\u5f00\u53d1\u8005\u63d0\u4f9b\u4e86API\u53bb\u4e3a\u81ea\u5df1\u7684\u5e94\u7528\u5546\u5e97\u5f00\u53d1app\u3002 \u4e4b\u524d\u65e0\u6cd5\u5b8c\u6210\u7684\u4e00\u4e9b\u529f\u80fd\uff0c\u6bd4\u5982\u7528\u4e09\u661f\u751f\u4ea7\u7684\u8fd0\u52a8\u4f20\u611f\u5668\uff08motion sensor\uff09 \u6570\u636e\u53bb\u63a7\u5236\u98de\u5229\u6d66\u751f\u4ea7\u7684\u706f\u6ce1\uff0c\u90fd\u53ef\u4ee5\u5728SmartThings\u5e73\u53f0\u4e0a\u5b9e\u73b0\u3002<\/p>\n

<\/p>\n

\u7136\u800c\uff0cappified\u5e73\u53f0\u4e5f\u5e26\u6765\u4e86\u4e00\u4e2a\u6839\u672c\u7684\u5b89\u5168\u95ee\u9898\u2014\u2014\u5141\u8bb8\u4e0d\u88ab\u4fe1\u4efb\u7684\u7b2c\u4e09\u65b9\u4ee3\u7801\u6765\u63a7\u5236\u7528\u6237\u7684\u8bbe\u5907\u30022016\u5e74IEEE S&P \u7684\u4e00\u7bc7\u8bba\u6587[1] \u5df2\u7ecf\u4ee5SmartThings\u5e73\u53f0\u4e3a\u4f8b\uff0c\u6307\u51fa\u8bb8\u591a\u5b58\u5728\u4e8eIoT \u5e94\u7528\u4e2d\u7684\u8bbf\u95ee\u63a7\u5236\uff08access control\uff09\u7f3a\u9677\uff0c\u9020\u6210\u5927\u591a\u6570\u7684app\u5b58\u5728\u201c\u8fc7\u5ea6\u7684\u6743\u9650\u201d\uff08overprivilege) \u95ee\u9898\uff0c\u4ece\u800c\u5141\u8bb8\u653b\u51fb\u8005\u5371\u5bb3\u667a\u80fd\u5bb6\u5c45\uff08smart home\uff09\u7528\u6237\u7684\u5b89\u5168\uff0c\u4f8b\u5982\u7528\u4f2a\u88c5\u6210\u76d1\u63a7\u7535\u6c60\u7535\u91cf\u7684IoT\u5e94\u7528\u53bb\u5077\u53d6\u667a\u80fd\u95e8\u9501\u7684\u5bc6\u7801\u7b49\u3002\u9488\u5bf9\u73b0\u5b9e\u5b58\u5728\u7684\u8fd9\u4e00\u7c7b\u5a01\u80c1IoT\u7528\u6237\u5b89\u5168\u7684\u95ee\u9898\uff0c\u6211\u4eec\u63d0\u51fa\u4e86ContexIoT\u89e3\u51b3\u65b9\u6848\u00a0[2]\uff0c\u4e00\u4e2a\u57fa\u4e8e\u60c5\u666f\uff08context\uff09\u7684\u5e94\u7528\u6743\u9650\u7cfb\u7edf\u3002ContexIoT \u4e3a\u5e94\u7528\u5316IoT\u5e73\u53f0\u7684\u8bbf\u95ee\u63a7\u5236\u63d0\u4f9b\u4e00\u79cd\u53eb\u505a contextual integrity \u7684\u7279\u6027\uff0c\u610f\u5373\uff1a\u5f53\u7528\u6237\u5141\u8bb8\u4e00\u79cd\u5e94\u7528\u7684\u884c\u4e3a\u65f6\uff0c\u5b83\u5b9e\u9645\u4e0a\u5141\u8bb8\u7684\u662f\u8fd9\u4e2a\u5e94\u7528\u5728\u5f53\u65f6\u7684context\u4e0b\u8fdb\u884c\u8fd9\u79cd\u884c\u4e3a\uff0c\u800c\u4e0d\u662f\u5728\u4efb\u4f55\u65f6\u5019\u3002Contextual integrity \u88ab\u4e4b\u524d\u7684\u7814\u7a76\u8005\u8ba4\u4e3a\u662f\u4e00\u4e2a\u7406\u60f3\u7684\u6743\u9650\u7cfb\u7edf\u6240\u5e94\u8be5\u786e\u4fdd\u7684\u7279\u6027[3]\u3002<\/p>\n

\u5bf9\u4e8e\u5982\u4f55\u53bb\u5b9a\u4e49\u5728IoT \u5e94\u7528\u60c5\u666f\u4e0b\u7684 Context\uff0c\u6587\u7ae0\u4f5c\u8005\u7814\u7a76\u4e86\u5927\u91cf\u5df2\u7ecf\u5b58\u5728\u7684\u9488\u5bf9IoT\u8bbe\u5907\u7684\u653b\u51fb\uff0c\u4ee5\u53ca\u6765\u81ea\u4e8e\u548cIoT\u5e73\u53f0\u975e\u5e38\u76f8\u4f3c\u7684\u53e6\u4e00\u4e2a\u5e94\u7528\u5316\u5e73\u53f0\u2014\u2014\u667a\u80fd\u624b\u673a\u5e73\u53f0\u7684\u5927\u91cf\u6076\u610f\u8f6f\u4ef6\uff0c\u7ed9\u51fa\u4e86\u4e00\u4e2a\u4f5c\u8005\u8ba4\u4e3a\u6bd4\u8f83\u5168\u9762\u7684Context\u7684\u5b9a\u4e49\u3002\u8be5\u5b9a\u4e49\u786e\u4fdd\u4e86\u6076\u610f\u8f6f\u4ef6\u7684\u6076\u610f\u884c\u4e3a\u80fd\u591f\u4eceContext\u5c42\u9762\u4e0a\u4e0e\u6b63\u5e38\u7684IoT\u5e94\u7528\u884c\u4e3a\u533a\u5206\u51fa\u6765\u3002 ContexIoT \u91c7\u7528\u4e86\u4e00\u79cd\u4e3a\u5e94\u7528\u5546\u5e97\u91cc\u7684IoT\u52a0\u5165\u5b89\u5168\u8865\u4e01\u7684\u65b9\u5f0f\u6765\u786e\u4fddapp\u8fd0\u884c\u65f6\u7684Contextual integrity\u3002 \u5982\u56fe\u6240\u793a\uff0c\u5728\u4e00\u4e2a\u539f\u59cb\u7684IoT \u5e94\u7528\u4e2d\u5b58\u5728\u4e24\u79cd\u884c\u4e3a\uff1a\u6b63\u5e38\u7684\u884c\u4e3a\u662f\u5f53\u68c0\u6d4b\u5230\u6e29\u5ea6\u5927\u4e8e\u4e00\u5b9a\u6570\u503c\u65f6\u6253\u5f00\u7a97\u6237\uff0c\u800c\u6076\u610f\u7684\u884c\u4e3a\u662f\u5f53\u53d1\u73b0\u7528\u6237\u8fdb\u5165\u7761\u7720\u72b6\u6001\u65f6\u6253\u5f00\u7a97\u6237\u3002 \u5728\u539f\u6709\u7684app\u903b\u8f91\u4e2d\uff0c\u56e0\u4e3aapp\u88ab\u7ed9\u4e88\u4e86\u63a7\u5236\u7a97\u6237\u7684\u6743\u9650\uff0c\u8fd9\u4e24\u79cd\u884c\u4e3a\u90fd\u662f\u88ab\u5141\u8bb8\u7684\u3002<\/p>\n

\"\"<\/p>\n

ContexIoT \u4f1a\u57fa\u4e8e\u5bf9\u5e94\u7528\u7a0b\u5e8f\u9759\u6001\u5206\u6790\uff08static analysis\uff09\u7684\u7ed3\u679c\u8fdb\u884c\u5b89\u5168\u8865\u4e01\u7684\u65b9\u5f0f\u6765\u4e3a\u7a0b\u5e8f\u52a0\u5165\u5b89\u5168\u6267\u884c\u7684\u903b\u8f91\u3002 \u5982\u56fe\uff0c\u88abContexIoT\u8fdb\u884c\u8fc7\u8865\u4e01\u7684\u5e94\u7528\u903b\u8f91\uff0c\u5f53\u8981\u6267\u884c\u5230\u201c\u5f00\u7a97\u201d\u8fd9\u4e00\u654f\u611f\u884c\u4e3a\uff08sensitive action\uff09\u65f6\u4f1a\u5c06\u5f53\u524d\u5f00\u7a97\u884c\u4e3a\u6240\u5728\u7684context\u62a5\u544a\u7ed9\u4e00\u4e2aContexIoT\u7684\u8d1f\u8d23\u8fdb\u884c\u8bbf\u95ee\u63a7\u5236\u7684\u8fdc\u7a0b\u670d\u52a1\uff0c\u8be5\u670d\u52a1\u4f1a\u6839\u636e\u4e0d\u540c\u7684context\u6765\u505a\u51fa\u8bbf\u95ee\u63a7\u5236\u7684\u51b3\u5b9a\uff1a\u5f53\u8be5\u654f\u611f\u884c\u4e3a\u53d1\u751f\u7684context\u548c\u7528\u6237\u4e4b\u524d\u5141\u8bb8\u8fc7\u7684\u4e00\u79cdcontext\u76f8\u7b26\u65f6\uff0c\u8be5\u884c\u4e3a\u88ab\u5141\u8bb8\uff1b \u5f53\u67d0\u79cdcontext\u7b2c\u4e00\u6b21\u51fa\u73b0\u65f6\uff0c\u5c06\u5b83\u663e\u793a\u7ed9\u7528\u4e8e\uff0c\u8ba9\u7528\u6237\u505a\u51fa\u51b3\u5b9a\u3002\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6b63\u5e38\u884c\u4e3a\u7684context\u63cf\u8ff0\u4e86\u8be5\u5f00\u7a97\u884c\u4e3a\u662f\u88ab\u6e29\u5ea6\u7684\u6539\u53d8\u800c\u89e6\u53d1\u7684\uff0c\u800c\u6076\u610f\u884c\u4e3a\u7684context\u53ef\u4ee5\u544a\u8bc9\u7528\u6237\u8be5\u5f00\u7a97\u884c\u4e3a\u662f\u7531\u7528\u6237\u8fdb\u5165\u7761\u7720\u800c\u89e6\u53d1\u7684\uff0c\u7528\u6237\u53ef\u4ee5\u7531\u6b64\u505a\u51fa\u7ec6\u7c92\u5ea6\u7684\uff08fine-grained\uff09\u57fa\u4e8econtext\u7684\u8bbf\u95ee\u63a7\u5236\u51b3\u5b9a\u3002<\/p>\n

\u4e3a\u4e86\u8bc4\u4f30ContexIoT\u65b9\u6cd5\u7684\u6709\u6548\u6027\uff0c\u4f5c\u8005\u56e2\u961f\u57fa\u4e8e\u5bf9\u4e4b\u524d\u5404\u79cdIoT\uff0c\u667a\u80fd\u624b\u673a\u4e0a\u7684\u6076\u610f\u8f6f\u4ef6\u6280\u672f\u7684\u7cfb\u7edf\u6027\u8c03\u67e5\uff0c\u9488\u5bf925\u79cd\u6076\u610f\u8f6f\u4ef6\u5e38\u7528\u7684\u7ed5\u8fc7\u8bbf\u95ee\u63a7\u5236\u7cfb\u7edf\u7684\u6280\u672f\uff0c\u5199\u51fa\u4e8625\u79cd\u9488\u5bf9SmartThings\u5e73\u53f0\u7684\u6076\u610f\u8f6f\u4ef6\uff0c\u6765\u6d4b\u8bd5ContexIoT\u662f\u5426\u80fd\u591f\u5728\u8fd0\u884c\u65f6\u68c0\u6d4b\u5e76\u963b\u6b62\u8fd9\u4e9b\u6076\u610f\u8f6f\u4ef6\u4e2d\u5b58\u5728\u7684\u6076\u610f\u884c\u4e3a\uff0c\u6700\u7ec8\u7ed3\u679c\u8bc1\u660e\u4e86\u8be5\u65b9\u6cd5\u7684\u6709\u6548\u6027\u3002 \u8fd9\u4e9b\u6076\u610f\u8f6f\u4ef6\u6837\u672c\u53ef\u4ee5\u4ece\u8be5\u9879\u76ee\u7684\u7f51\u7ad9\u4e0a\u4e0b\u8f7d[4] \u3002\u540c\u65f6\uff0c\u7ecf\u8fc7\u5bf9283\u4e2a\u5e94\u7528\u5546\u5e97\u5185\u7684Smart Things\u5e94\u7528\u7684\u6d4b\u91cf\uff0c\u53d1\u73b0\u88ab\u52a0\u5165\u5b89\u5168\u903b\u8f91\u7684\u5e94\u7528\u548c\u539f\u59cb\u5e94\u7528\u76f8\u6bd4\u53ea\u989d\u5916\u589e\u52a0\u4e86\u7ea610%\u7684\u5ef6\u8fdf\uff0c\u8fd9\u5728\u5927\u591a\u6570\u7269\u8054\u7f51\u7684\u5e94\u7528\u60c5\u666f\u4e0b\u53ef\u4ee5\u5ffd\u7565\u4e0d\u8ba1\u3002<\/p>\n

\u5728\u6b64\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u5c06\u524d\u4eba\u5728\u8bbf\u95ee\u63a7\u5236\u9886\u57df\u63d0\u51fa\u7684\u4e00\u79cd\u7406\u60f3\uff0c\u4f46\u96be\u4ee5\u5b9e\u73b0\u7684\u7279\u6027\u2014\u2014Contextual integrity\uff0c\u5229\u7528IoT\u5e94\u7528\u573a\u666f\u7684\u4e00\u4e9b\u7279\u70b9\u8fdb\u884c\u4e86\u5b9e\u73b0, \u63d0\u4f9b\u4e86\u4e00\u79cd\u80fd\u9632\u5fa1\u7edd\u5927\u591a\u6570\u73b0\u5728\u5df2\u77e5\u7684\u6076\u610f\u8f6f\u4ef6\u6280\u672f\u7684\u65b0\u578b\u7684\u8bbf\u95ee\u63a7\u5236\u7cfb\u7edf\uff0c\u6211\u4eec\u7684\u5b9e\u73b0\u76ee\u524d\u4ec5\u57fa\u4e8e\u4e09\u661fSmartThings\u5e73\u53f0\uff0c\u4f46\u8fd9\u79cd\u8bbe\u8ba1\u9002\u7528\u4e8e\u76ee\u524d\u5e02\u9762\u4e0a\u5f88\u591a\u5305\u62ecApple HomeKit \u5728\u5185\u7684\u5e94\u7528\u5316\u7684IoT\u5e73\u53f0\u3002<\/p>\n

\u53c2\u8003\u6587\u732e<\/b><\/strong><\/p>\n

[1] E.Fernandes, J.Jung, and A.Prakash. Security Analysis of Emerging Smart Home Applications. In Proceedings of the 37th<\/sup>\u00a0IEEE Symposium on Security and Privacy.<\/p>\n

[2] Yunhan Jack Jia, et al. ContexIoT: Towards Providing Contextual Integrity to Appified IoT Platforms. Proceedings of the 24th Network and Distributed System Security Symposium (NDSS\u201917).<\/p>\n

[3] P.Wijesekera, A.Baokar, A.HosseiniE, S.Egelman, D.Wagner, and K.Beznosov. \u00a0Android permission remystified: \u00a0A field study on contextual integrity. \u00a0In Proceedings of the 24th<\/sup>\u00a0USENIX Security Symposium.<\/p>\n

[4] Project website. https:\/\/sites.google.com\/site\/iotcontextualintegrity\/home<\/p>\n

\u4f5c\u8005\u7b80\u4ecb<\/b><\/strong><\/p>\n

\u8d3e\u4e91\u701a\uff08Jack\uff09\uff0c Ph.D. Candidate, \u73b0\u5c31\u8bfb\u4e8eUniversity of Michigan \uff08\u5bc6\u897f\u6839\u5927\u5b66\uff09\uff0c\u535a\u58eb\u6307\u5bfc\u8001\u5e08\u4e3aZ. Morley Mao. \u672c\u79d1\u6bd5\u4e1a\u4e8e\u4e0a\u6d77\u4ea4\u901a\u5927\u5b66\u8f6f\u4ef6\u5b66\u9662\u9648\u6d77\u6ce2\u6559\u6388\u7ec4\uff0c\u7814\u7a76\u65b9\u5411\u4e3a\u79fb\u52a8\u4e92\u8054\u7f51\uff0c\u7269\u8054\u7f51\u548c\u81ea\u52a8\u9a7e\u9a76\u7684\u5b89\u5168\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

ContexIoT: \u4e3a\u5e94\u7528\u5316\u7684IoT\u5e73\u53f0\u63d0\u4f9b\u573a\u666f\u5b8c\u6574\u6027 \u4f5c\u8005\uff1a\u8d3e\u4e91\u701a\u00a0 \u00a0\u5bc6\u897f\u6839\u5927\u5b66 \u7269\u8054\u7f51\uff08Io… Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1988","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1988"}],"version-history":[{"count":3,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1988\/revisions"}],"predecessor-version":[{"id":1992,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1988\/revisions\/1992"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1988"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}