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IoT\u8bbe\u5907\u6b63\u5728\u75af\u72c2\u7684\u6e17\u900f\u6211\u4eec\u7684\u751f\u6d3b\u3002\u4eceIP\u6444\u50cf\u5934\uff0c\u5916\u79d1\u624b\u672f\u673a\u5668\u4eba\uff0c \u8bed\u97f3\u667a\u80fd\u8f85\u52a9\u7cfb\u7edf\uff0c\u5230\u8fb9\u7f18\u8ba1\u7b97\uff08\u5982\u667a\u80fd\u8def\u7531\u5668\uff09\uff0c\u6211\u4eec\u7684\u751f\u6d3b\u5de5\u4f5c\u73af\u5883\u5df2\u7ecf\u7531\u4e0a\u4ebf\u4e2aIoT\u8bbe\u5907\u4e92\u8054\u3002\u4e0d\u5149\u5982\u6b64\uff0c\u8fd9\u4e9b\u8bbe\u5907\u9700\u8981\u6709\u8db3\u591f\u7684\u667a\u80fd\u6765\u534f\u52a9\u6211\u4eec\u6765\u5904\u7406\u4e8b\u52a1\uff0c\u6bd4\u5982\uff0cAmazon\u7684Echo\u8bed\u97f3\u667a\u80fd\u7cfb\u7edf\u53ef\u4ee5\u5b66\u4e60\u7528\u6237\u7684\u4e60\u60ef\uff0c\u4ece\u800c\u5236\u5b9a\u4e2a\u6027\u5316\u7684\u8bed\u97f3\u670d\u52a1\u3002\u8bbe\u5907\u751f\u4ea7\u5546\u4e3a\u4e86\u5feb\u901f\u8fdb\u5165\u5e02\u573a\uff0c\u901a\u5e38\u4f1a\u5728\u5df2\u6709\u7684\u6210\u719f\u5e73\u53f0\u642d\u5efa\u81ea\u5df1\u7684\u7cfb\u7edf\uff0c\u5f88\u663e\u7136\uff0cARM\u52a0Linux\u7684\u7ec4\u5408\u7edf\u6cbb\u4e86\u76ee\u524d\u667a\u80fdIoT\u5e02\u573a\u3002<\/p>\n

<\/p>\n

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\u5728x86\u5e73\u53f0\uff0c\u5df2\u6709\u57fa\u4e8e\u865a\u62df\u5316\u7684\u65b9\u6848\u6765\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\u30102\uff0c3\u3011\u3002\u5176\u603b\u4f53\u601d\u60f3\u662f\u5229\u7528\u5f71\u5b50\u9875\u8868\u6765\u7ed9\u5e94\u7528\u7a0b\u5e8f\u4e24\u4e2a\u89c6\u56fe\u3002\u5982\u56fe1\u6240\u793a\uff0c\u5728\u7528\u6237\u6001\uff0c\u8fdb\u7a0b\u53ef\u4ee5\u6b63\u5e38\u8bbf\u95ee\u5b83\u7684\u6570\u636e\uff1b\u4f46\u662f\u4e00\u65e6\u8fdb\u5165\u5185\u6838\uff0c\u5982\u679c\u5904\u7406\u5668\u8981\u8bbf\u95ee\u7528\u6237\u6570\u636e\uff0c\u8be5\u6570\u636e\u5bf9\u5e94\u7684\u9875\u4f1a\u88abhypervisor\u900f\u660e\u7684\u52a0\u5bc6\u3002<\/p>\n

\"\"<\/p>\n

\u3000\u3000\u56fe1\uff1a \u57fa\u4e8e\u865a\u62df\u5316\u7684\u89e3\u51b3\u65b9\u6848<\/p>\n

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1.\u8fd0\u884c\u8fc7\u7a0b\u4e2d\uff0c\u53ef\u4fe1\u8fdb\u7a0b\u548c\u666e\u901a\u64cd\u4f5c\u7cfb\u7edf\u9694\u79bb\uff0c\u666e\u901a\u64cd\u4f5c\u7cfb\u7edf\u4e0d\u80fd\u8bbf\u95ee\u53ef\u4fe1\u8fdb\u7a0b\u7684\u6570\u636e\u548c\u4ee3\u7801\u3002<\/p>\n

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3.\u9a8c\u8bc1\u7cfb\u7edf\u8c03\u7528\u7684\u8fd4\u56de\u503c\uff0c\u6765\u62b5\u6297Iago\u653b\u51fb\u30108\u3011\u3002<\/p>\n

4.\u52a0\u5bc6\u6587\u4ef6\u64cd\u4f5c\uff0c\u4f7f\u5f97\u5199\u5165\u78c1\u76d8\u7684\u6570\u636e\u662f\u5bc6\u6587\uff0c\u9632\u6b62\u4e0d\u53ef\u4fe1\u64cd\u4f5c\u7cfb\u7edf\u7684\u8bbf\u95ee\u3002<\/p>\n

\u4ee5\u4e0b\uff0c\u6211\u4eec\u901a\u8fc7\u56fe\u793a\u6765\u5c55\u793aTrustShadow\u5982\u4f55\u901a\u8fc7\u7f3a\u9875\u5904\u7406\uff08page fault handler\uff09\u6765\u4fdd\u8bc1\u53ef\u4fe1\u8fdb\u7a0b\u5730\u5740\u7a7a\u95f4\u7684\u9694\u79bb\uff0c\u4ee5\u53ca\u786e\u4fdd\u4ee3\u7801\u7684\u5b8c\u6574\u6027\u3002\u5176\u4ed6\u6280\u672f\u7ec6\u8282\uff0c\u8bf7\u53c2\u8003MobiSys 2017\u7684\u8bba\u6587\u300aTrustShadow\uff1a Secure Execution of Unmodified Applications with ARM TrustZone\u300b\u3002<\/p>\n

\"\"<\/p>\n

\u56fe2\uff1a \u4ee3\u7801\u6bb5\u7f3a\u9875\u5904\u7406<\/p>\n

\u5982\u56fe2\uff0c\u5f53\u8fdb\u7a0b\u7531\u4e8e\u8bbf\u95ee\u4ee3\u7801\u800c\u53d1\u751f\u7f3a\u9875\uff0c\u5b89\u5168\u8fd0\u884c\u65f6\u628a\u8be5\u5f02\u5e38\u8f6c\u53d1\u7ed9\u666e\u901a\u4e16\u754c\u7684Linux\u5185\u6838\uff0cLinux\u627e\u5230\u5bf9\u5e94\u7684\u6587\u4ef6\u7f13\u5b58\u9875N-page\uff0c\u5b89\u88c5\u9875\u8868\uff0c\u540c\u65f6\u7ed9\u53ef\u4fe1\u8fdb\u7a0b\u5206\u914d\u4e00\u4e2a\u5b89\u5168\u7684\u7269\u7406\u9875S-page\u3002\u5b89\u5168\u8fd0\u884c\u65f6\u63a5\u7ba1\u540e\uff0c\u9996\u5148\u9a8c\u8bc1S-page\u662f\u5426\u771f\u7684\u5b89\u5168\u8d44\u6e90\uff0c\u5176\u6b21\u9a8c\u8bc1S-page\u662f\u5426\u548c\u522b\u7684\u7269\u7406\u5185\u5b58\u5b58\u5728double-mapping\uff0c\u53ea\u6709\u5728\u5b89\u5168\u9a8c\u8bc1\u90fd\u901a\u8fc7\u4ee5\u540e\uff0c\u5b89\u5168\u8fd0\u884c\u65f6\u624d\u5b89\u88c5\u53ef\u4fe1\u7684\u9875\u8868\uff0c\u5e76\u628aN-page\u7684\u4ee3\u7801\u590d\u5236\u5230S-page\u3002\u6700\u540e\uff0c\u4f7f\u7528\u50a8\u5b58\u5728\u5b89\u5168\u4e16\u754c\u7684\u5143\u6570\u636e\u6765\u9a8c\u8bc1\u8be5\u4ee3\u7801\u9875\u662f\u5426\u7ecf\u8fc7\u7be1\u6539\uff0c\u5982\u679c\u6ca1\u6709\uff0c\u5219\u8fd4\u56de\u53ef\u4fe1\u8fdb\u7a0b\u7ee7\u7eed\u6267\u884c\u3002\u81f3\u6b64\uff0c\u666e\u901aLinux\u4e0d\u80fd\u5bf9\u6539\u4ee3\u7801\u9875\u8fdb\u884c\u4efb\u4f55\u4fee\u6539\u3002<\/p>\n

\u5f53\u7136\uff0c\u628a\u8fdb\u7a0b\u8fd0\u884c\u5728\u5b89\u5168\u4e16\u754c\uff0c\u5982\u679c\u6709\u6f0f\u6d1e\uff0c\u5219\u53ef\u80fd\u88ab\u653b\u51fb\u8005\u5229\u7528\uff0c\u53cd\u8fc7\u6765\u653b\u51fb\u666e\u901a\u4e16\u754c\u7684Linux\u5185\u6838\uff0c\u56e0\u4e3a\u5b89\u5168\u4e16\u754c\u7684\u6743\u9650\u5927\u4e8e\u666e\u901a\u4e16\u754c\u3002\u5728TrustShadow\u7684\u8bbe\u8ba1\u4e2d\uff0c\u6211\u4eec\u5229\u7528\u4ee5\u4e0b\u51e0\u70b9\u6765\u9632\u6b62\u8fd9\u4e00\u9690\u60a3\u3002\u7b2c\u4e00\uff0cTrustShadow\u652f\u6301\u672a\u7ecf\u4fee\u6539\u7684\u7a0b\u5e8f\uff0c\u5e76\u4e0d\u610f\u5473\u7740\u6240\u6709\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u5728\u5b89\u5168\u4e16\u754c\u8fd0\u884c\u3002\u6211\u4eec\u9700\u8981\u5bf9\u53ef\u4fe1\u8fdb\u7a0b\u8fdb\u884c\u4e25\u683c\u5ba1\u67e5\uff0c\u901a\u8fc7\u5ba1\u67e5\u7684\u7a0b\u5e8f\uff0c\u9700\u8981\u7ed1\u5b9a\u4e00\u4e2a\u7b7e\u540d\u7684manifest\uff0c\u5b89\u5168\u8fd0\u884c\u65f6\u68c0\u67e5\u8be5manifest\u7684\u6709\u6548\u6027\u6765\u5224\u65ad\u662f\u5426\u5141\u8bb8\u5176\u5728\u5b89\u5168\u4e16\u754c\u8fd0\u884c\uff1b\u7b2c\u4e8c\uff0c\u7531\u4e8e\u53ef\u4fe1\u8fdb\u7a0b\u8fd0\u884c\u5728\u7528\u6237\u7a7a\u95f4\uff0c\u5373\u4f7f\u5176\u6709\u6f0f\u6d1e\uff0c\u4e5f\u9700\u8981\u8fdb\u4e00\u6b65exploit\u5b89\u5168\u8fd0\u884c\u65f6\uff0c\u624d\u80fd\u6784\u6210\u6709\u6548\u653b\u51fb\uff1b\u7b2c\u4e09\uff0c\u5982\u4e0a\u6240\u8ff0\uff0c\u6211\u4eec\u7684\u5b89\u5168\u8fd0\u884c\u65f6\u8fdb\u884c\u4e86\u6781\u7b80\u7684\u8bbe\u8ba1\uff0c\u5176\u5bf9\u53ef\u4fe1\u8fdb\u7a0b\u66b4\u9732\u7684\u63a5\u53e3\u5f88\u5c11\uff08\u4ec5\u4ec5\u8f6c\u53d1\u5f02\u5e38\u548c\u68c0\u67e5\u7cfb\u7edf\u670d\u52a1\u8fd4\u56de\u503c\uff09\uff0c\u800c\u4e14\uff0c5000+\u7684\u4ee3\u7801\u91cf\uff0c\u4e5f\u4f7f\u5f97\u5f62\u5f0f\u5316\u9a8c\u8bc1\u6210\u4e3a\u53ef\u80fd\u3002<\/p>\n

\u6211\u4eec\u5728NXP\u7684i.MX6q\u5f00\u53d1\u7248\u4e0a\u5b9e\u73b0\u4e86\u4ee5\u4e0a\u8bbe\u8ba1\uff0c\u5e76\u6210\u529f\u7684\u8fd0\u884c\u4e8650\u591a\u4e2aLinux\u7684\u6838\u5fc3utility\uff0c\u4ee5\u53caApache\u3001Nginx\u7b49\u5927\u578b\u7a0b\u5e8f\u3002\u5177\u4f53\u7684\u5b9e\u9a8c\u6570\u636e\u60c5\u53c2\u8003Mobisys\u8bba\u6587\u3002<\/p>\n

\u53c2\u8003\u6587\u732e\uff1a<\/strong><\/p>\n

1\uff1a CVEdetails.com. Linux\uff1a Vulnerability statistics. https\uff1a\/\/www.cvedetails.com\/product\/47\/Linux-Linux-Kernel.html\uff1fvendor_id=33<\/p>\n

2\uff1a Chen\uff0c Xiaoxin\uff0c et al. \u201cOvershadow\uff1a a virtualization-based approach to retrofitting protection in commodity operating systems.\u201d ACM SIGARCH Computer Architecture News. Vol. 36. No. 1. ACM\uff0c 2008.<\/p>\n

3\uff1a Hofmann\uff0c Owen S.\uff0c et al. \u201cInktag\uff1a Secure applications on an untrusted operating system.\u201d ACM SIGARCH Computer Architecture News. Vol. 41. No. 1. ACM\uff0c 2013.<\/p>\n

4\uff1a ARM Architecture Group. Virtualization Extensions Architecture Specification\uff0c 2010. https\uff1a\/\/www\uff1aarm\uff1acom\/products\/processors\/technologies\/virtualization-extensions\uff1aphp.<\/p>\n

5\uff1a Felix Baum. Why you don\u2018t necessarily need a hypervisor\uff0c 2014. http\uff1a\/\/embedded-computing\uff1acom\/guest-blogs\/why-you-dont-necessarily-need-a-hypervisor\/.<\/p>\n

6\uff1a CVEdetails.com. Vmware\uff1a Vulnerability statistics. http\uff1a\/\/www\uff1acvedetails\uff1acom\/vendor\/252\/Vmware\uff1ahtml.<\/p>\n

7\uff1a ARM Ltd. Security technology building a secure system using trustzone technology \uff08white paper\uff09. 2009.<\/p>\n

8\uff1a Checkoway\uff0c Stephen\uff0c and Hovav Shacham. Iago attacks\uff1a Why the system call api is a bad untrusted rpc interface. Vol. 41. No. 1. ACM\uff0c 2013.<\/p>\n

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

\u7ba1\u4e50\u535a\u58eb\u672c\u79d1\u6bd5\u4e1a\u4e8e\u4e2d\u56fd\u79d1\u5b66\u6280\u672f\u5927\u5b66\uff0c\u535a\u58eb\u6bd5\u4e1a\u4e8e\u4e2d\u56fd\u79d1\u5b66\u9662\u4fe1\u606f\u5de5\u7a0b\u7814\u7a76\u6240\uff0c\u73b0\u4e3a\u5bbe\u5dde\u5dde\u7acb\u5927\u5b66\u5218\u9e4f\u6559\u6388\u7814\u7a76\u7ec4\u535a\u58eb\u540e\u3002\u4ed6\u7684\u7814\u7a76\u65b9\u5411\u4e3a\u7cfb\u7edf\u5b89\u5168\uff0c\u79fb\u52a8\u5e73\u53f0\u5b89\u5168\u3002\u4ed6\u7684\u7814\u7a76\u6210\u679c\u53d1\u8868\u5728IEEE S&P\uff0cNDSS\uff0cTDSC\u7b49\u7cfb\u7edf\u5b89\u5168\u9876\u7ea7\u4f1a\u8bae\u671f\u520a\uff0c\u548cSenSys\uff0cMobiSys\u7b49\u79fb\u52a8\u8ba1\u7b97\u9876\u7ea7\u4f1a\u8bae\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5229\u7528TrustZone\u4fdd\u62a4\u53ef\u4fe1\u7a0b\u5e8f\u514d\u53d7\u6076\u610f\u64cd\u4f5c\u7cfb\u7edf\u653b\u51fb \u4f5c\u8005\uff1a\u7ba1\u4e50\u00a0\uff08\u7f8e\u56fd\u5bbe\u5dde\u5dde\u7acb\u5927\u5b66\uff09 IoT\u8bbe\u5907… 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-2178","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\/2178","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=2178"}],"version-history":[{"count":3,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2178\/revisions"}],"predecessor-version":[{"id":2190,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/2178\/revisions\/2190"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2178"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}