{"id":54831,"date":"2018-03-07T17:43:32","date_gmt":"2018-03-07T09:43:32","guid":{"rendered":"https:\/\/blog.trendmicro.com.tw\/?p=54831"},"modified":"2018-03-13T17:47:34","modified_gmt":"2018-03-13T09:47:34","slug":"sgxpectre%e5%8f%af%e5%be%9eintel-sgx-enclave%e5%8f%96%e5%be%97%e8%b3%87%e6%96%99","status":"publish","type":"post","link":"https:\/\/blog.trendmicro.com.tw\/?p=54831","title":{"rendered":"SgxPectre\u53ef\u5f9eIntel SGX Enclave\u53d6\u5f97\u8cc7\u6599"},"content":{"rendered":"<p>\u4fc4\u4ea5\u4fc4\u5dde\u7acb\u5927\u5b78\u6700\u8fd1\u7684\u4e00\u7bc7\u7814\u7a76\u5831\u544a\u8a73\u7d30\u4ecb\u7d39\u82f1\u7279\u723e(Intel)\u8edf\u9ad4\u9632\u8b77\u64f4\u5145\u6307\u4ee4\u96c6(SGX)<a href=\"https:\/\/web.cse.ohio-state.edu\/~zhang.834\/papers\/SgxPectre.pdf\">\u906d\u53d7Spectre\u653b\u64ca\u7684\u6700\u65b0\u60c5\u6cc1<\/a>\u3002SGX\u662f\u82f1\u7279\u723e(Intel)\u73fe\u4ee3\u8655\u7406\u5668\u7684\u4e00\u9805\u529f\u80fd\uff0c\u5b83\u5c07\u9078\u5b9a\u7a0b\u5f0f\u78bc\u53ca\u8cc7\u6599\u7ba1\u63a7\u5728\u201d\u98db\u5730(enclave)\u201d\u4ee5\u4fdd\u8b77\u5b83\u5011\u4e0d\u6703\u88ab\u6d29\u9732\u6216\u7ac4\u6539\u3002\u5982\u679c\u9019\u88ab\u7814\u7a76\u4eba\u54e1\u7a31\u70baSgxPectre\u7684\u653b\u64ca\u6210\u529f\uff0c\u653b\u64ca\u8005\u5c31\u53ef\u4ee5\u5f9e\u98db\u5730(enclave)\u53d6\u5f97\u8cc7\u6599\u3002<\/p>\n<p><a href=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-54832\" src=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security.jpg\" alt=\"\" width=\"700\" height=\"479\" srcset=\"https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security.jpg 700w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security-300x205.jpg 300w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security-600x411.jpg 600w, https:\/\/blog.trendmicro.com.tw\/wp-content\/uploads\/2018\/03\/security-30x21.jpg 30w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n<p>\u7576\u4f7f\u7528\u8005\u5728\u61c9\u4ed8\u4eca\u5e74\u4e00\u6708\u6240\u62ab\u9732\u7684\u82f1\u7279\u723e(Intel)\u8655\u7406\u5668\u6f0f\u6d1e<a href=\"https:\/\/www.trendmicro.com\/vinfo\/us\/security\/news\/vulnerabilities-and-exploits\/meltdown-and-spectre-intel-processor-vulnerabilities-what-you-need-to-know\">Meltdown\u548cSpectre<\/a>\u6642\uff0c\u9019\u4e9b\u56b4\u91cd\u6f0f\u6d1e\u4f3c\u4e4e\u4e26\u672a\u5f71\u97ff\u5230SGX\u98db\u5730(enclave)\u3002\u98db\u5730(enclave)\u7684\u5b89\u5168\u8a2d\u8a08\u662f\u5373\u4f7f\u662f\u4f5c\u696d\u7cfb\u7d71\u4e5f\u4e0d\u80fd\u5b58\u53d6\u5176\u5167\u5bb9\u3002<\/p>\n<p>\u9019\u500b\u653b\u64ca\u4f7f\u7528\u4e86<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/speculation-risky-understanding-meltdown-spectre\/\">Spectre\u6f0f\u6d1e<\/a>\u52a0\u4e0a\u73fe\u6709SGX\u57f7\u884c\u6642\u51fd\u5f0f\u5eab(runtime library)\u5167\u6709\u5f31\u9ede\u7684\u7a0b\u5f0f\u78bc\uff0c\u53ef\u4ee5\u5b8c\u5168\u5b58\u53d6\u53d7\u9632\u8b77\u98db\u5730(enclave)\u7684\u5167\u5bb9\u3002\u9019\u4e9b\u6f0f\u6d1e\u5b58\u5728\u65bc\u57f7\u884c\u6642\u51fd\u5f0f\u5eab(runtime library) \u2013 Intel SGX SDK\uff0cRust-SGX\u548cGraphene-SGX\u7279\u5225\u88ab\u6307\u51fa\u3002<\/p>\n<p>\u7814\u7a76\u4eba\u54e1<a href=\"https:\/\/www.youtube.com\/watch?v=dOJgPNovFZo\">\u5c55\u793a\u9019\u500b\u6f0f\u6d1e\u653b\u64ca<\/a>\u6642\u88dc\u5145\uff1a\u201dSGXPECTRE\u5efa\u7acb\u4e86\u60e1\u610f\u7684SGX\u98db\u5730(enclave)\u4f86\u8207\u5176\u4ed6\u98db\u5730(enclave)\u5171\u5b58\uff0c\u518d\u4f7f\u7528\u65c1\u8def\u653b\u64ca(side-channel)\u89c0\u5bdf\u5feb\u53d6\u8ffd\u8e64\u548c\u5206\u652f\u9810\u6e2c\u5ef6\u9072\u3002\u201d<!--more--><\/p>\n<p>SFX\u98db\u5730(enclave)\u5c08\u9580\u7528\u4f86<a href=\"https:\/\/www.zdnet.com\/article\/azure-confidential-computing-microsoft-boosts-security-for-cloud-data\/\">\u5b58\u653e\u6709\u50f9\u503c\u7684\u654f\u611f\u8cc7\u6599<\/a>\uff0c\u56e0\u6b64\u4efb\u4f55\u53ef\u5371\u53ca\u5176\u5b89\u5168\u7684\u653b\u64ca\u90fd\u5f88\u56b4\u91cd\u3002\u4f7f\u7528\u4e86SgxPectre\uff0c\u9032\u5165\u8cc7\u6599\u4e2d\u5fc3\u7684\u60e1\u610f\u4efd\u5b50\u5c31\u53ef\u4ee5\u5b58\u53d6\u9019\u4e9b\u98db\u5730(enclave)\u5167\u53d7\u4fdd\u8b77\u7684\u8cc7\u6599\u3002<\/p>\n<p>\u7814\u7a76\u4eba\u54e1\u9084\u63d0\u5230\uff0c\u5be6\u65bdGoogle <a href=\"https:\/\/security.googleblog.com\/2018\/01\/more-details-about-mitigations-for-cpu_4.html\">Retpoline <\/a>anti-Spectre\u7a0b\u5f0f\u6280\u8853\u7684\u61c9\u7528\u7a0b\u5f0f\u662f\u5b89\u5168\u7684\u3002<\/p>\n<p>\u70ba\u4e86\u89e3\u6c7a\u9019\u985e\u5a01\u8105\u7684\u5f71\u97ff\uff0c\u53ef\u4ee5\u900f\u904e\u5fae\u78bc\u66f4\u65b0\u4f86\u9032\u884c<a href=\"https:\/\/web.cse.ohio-state.edu\/~zhang.834\/papers\/SgxPectre.pdf\">\u786c\u9ad4\u4fee\u88dc<\/a>\u3002\u7814\u7a76\u4eba\u54e1\u9084\u52a0\u4e0a\u4e86\u4e00\u4e9b\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li>\u98db\u5730(enclave)\u4f7f\u7528\u8005\u61c9\u8a72\u5728\u958b\u767c\u6642\u6307\u5b9a\u6700\u4f4e\u7684CPU\u5b89\u5168\u7248\u672c\u865f\u78bc(CPUSVN)\u3002\u9019\u662f\u7528\u4f86\u751f\u6210\u672c\u5730\u7aef\u548c\u9060\u7aef\u8a8d\u8b49\u7684\u91d1\u9470\uff0c\u800c\u6307\u5b9aCPUSVN\u4f7f\u7528\u6700\u4f4e\u70ba\u4e0a\u8ff0\u7684\u5fae\u78bc\u4fee\u88dc\u7248\u672c\u5247\u53ef\u4ee5\u9632\u6b62SgxPectre\u3002<\/li>\n<li>\u57f7\u884c\u6642\u51fd\u5f0f\u5eab(runtime library)\u7684\u958b\u767c\u4eba\u54e1\u61c9\u8a72\u8981\u6aa2\u67e5\u4ed6\u5011\u7684\u7a0b\u5f0f\u78bc\u4e26\u79fb\u9664\u6703\u88ab\u653b\u64ca\u7684\u5c0f\u5de5\u5177<\/li>\n<\/ul>\n<p>\u82f1\u7279\u723e(Intel)\u8a08\u5283\u900f\u904eIntel SGX SDK\u7684\u5b89\u5168\u66f4\u65b0\u4f86\u89e3\u6c7aSgxPectre\u554f\u984c\uff0c\u8a72\u66f4\u65b0\u5c07\u6703\u57283\u670816\u65e5\u767c\u5e03\u3002\u9451\u65bc\u554f\u984c\u7684\u56b4\u91cd\u6027\uff0c\u5efa\u8b70\u53ef\u80fd\u53d7\u5230\u5f71\u97ff\u7684\u4f7f\u7528\u8005\u90fd\u8981\u9032\u884c<a href=\"https:\/\/blog.trendmicro.com\/trendlabs-security-intelligence\/januarys-patch-tuesday-fixes-56-security-issues-including-meltdown-spectre\/\">\u4fee\u88dc\u548c\u66f4\u65b0<\/a>\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>@\u539f\u6587\u51fa\u8655\uff1a<a href=\"https:\/\/www.trendmicro.com\/vinfo\/us\/security\/news\/cyber-attacks\/sgxpectre-can-extract-data-from-intel-s-sgx-enclaves\">SgxPectre can Extract Data from Intel\u2019s SGX Enclaves<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fc4\u4ea5\u4fc4\u5dde\u7acb\u5927\u5b78\u6700\u8fd1\u7684\u4e00\u7bc7\u7814\u7a76\u5831\u544a\u8a73\u7d30\u4ecb\u7d39\u82f1\u7279\u723e(Intel)\u8edf\u9ad4\u9632\u8b77\u64f4\u5145\u6307\u4ee4\u96c6(SGX)\u906d\u53d7Spectre\u653b\u64ca [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":false,"datetime":null,"platforms":[],"status":"template_only","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[3654,156],"tags":[3777,3776,452,2292],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54831"}],"collection":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=54831"}],"version-history":[{"count":0,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=\/wp\/v2\/posts\/54831\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=54831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=54831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.trendmicro.com.tw\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=54831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}