{"id":1693,"date":"2016-12-27T01:52:39","date_gmt":"2016-12-27T01:52:39","guid":{"rendered":"https:\/\/www.inforsec.org\/wp\/?p=1693"},"modified":"2016-12-27T01:52:39","modified_gmt":"2016-12-27T01:52:39","slug":"hypnoguard-%e4%bf%9d%e6%8a%a4%e5%be%85%e6%9c%ba%e7%8a%b6%e6%80%81%e4%b8%8b%e7%9a%84%e5%86%85%e5%ad%98%e6%95%b0%e6%8d%ae","status":"publish","type":"post","link":"http:\/\/202.112.238.40\/wp\/?p=1693","title":{"rendered":"Hypnoguard: \u4fdd\u62a4\u5f85\u673a\u72b6\u6001\u4e0b\u7684\u5185\u5b58\u6570\u636e"},"content":{"rendered":"

Hypnoguard: \u4fdd\u62a4\u5f85\u673a\u72b6\u6001\u4e0b\u7684\u5185\u5b58\u6570\u636e<\/strong><\/h2>\n

\u4f5c\u8005\u00a0:\u00a0\u00a0\u8d75\u8fde\u83b9\u00a0(Viau)\uff0cPh.D. Candidate\uff0c\u73b0\u5c31\u8bfb\u4e8eConcordia University\u00a0(\u52a0\u62ff\u5927)<\/p>\n

\u7559\u5728\u8ba1\u7b97\u673a\u5185\u5b58\u4e2d\u7684\u654f\u611f\u6570\u636e\uff0c\u5728\u7cfb\u7edf\u5904\u4e8e\u5f85\u673a\u72b6\u6001(ACPI S3)\u65f6\u6781\u6613\u901a\u8fc7\u65c1\u8def\u653b\u51fb(side-channel attacks)\u88ab\u7a83\u53d6\u3002\u8fd9\u7c7b\u654f\u611f\u6570\u636e\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\u5168\u76d8\u52a0\u5bc6\u79d8\u94a5(\u5982TrueCrypt)\u00a0\u4ee5\u53ca\u6b63\u5728\u88ab\u67e5\u770b\u7684\u4fdd\u5bc6\u6587\u4ef6\u00a0(\u5c3d\u7ba1\u5b83\u4eec\u5728\u78c1\u76d8\u4e0a\u5df2\u52a0\u5bc6)\u00a0\u3002\u5f53\u8ba1\u7b97\u673a\u88ab\u5077\u76d7\u6216\u4e22\u5931\u4ee5\u53ca\u673a\u4e3b\u88ab\u5a01\u80c1\u65f6\uff0c\u7531\u4e8e\u653b\u51fb\u8005\u5f97\u5230\u51e0\u4e4e\u4e0d\u53d7\u9650\u5236\u7684\u7269\u7406\u4fbf\u5229\uff0c\u4ed6\u6709\u6761\u4ef6\u5229\u7528\u7cfb\u7edfDMA\u00a0\u6f0f\u6d1e\u76f4\u63a5\u8bbf\u95ee\u5185\u5b58\u6570\u636e\u6216\u8005\u51b7\u8d77\u52a8\u5185\u5b58\u6620\u50cf\u653b\u51fb\u00a0(cold boot attack)\u00a0\u7b49\u65c1\u8def\u653b\u51fb\u6765\u7a83\u53d6\u6570\u636e\u3002<\/p>\n

<\/p>\n

\u5e94\u5bf9\u8fd9\u7c7b\u5a01\u80c1\u7684\u4e00\u4e2a\u6311\u6218\u662f\u7531\u4e8e\u8ba1\u7b97\u673a\u4e0d\u80fd\u76f4\u63a5\u8fd0\u884c\u52a0\u5bc6\u6307\u4ee4\uff0c\u7cfb\u7edf\u5185\u5b58\u4e2d\u65e0\u8bba\u5f85\u673a\u4e2d\u6216\u7cfb\u7edf\u82cf\u9192\u65f6\u654f\u611f\u6570\u636e\u5df2\u7ecf\u660e\u6587\u5b58\u5728\uff0c\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u7684\u91cd\u65b0\u9274\u6743\u4fdd\u62a4\u65e0\u6cd5\u594f\u6548\u3002\u4e00\u4e9b\u89e3\u51b3\u65b9\u6848\u9009\u62e9\u5c06\u79d8\u94a5\u6682\u5b58\u5728CPU\u5bc4\u5b58\u5668\u7b49\u7279\u6b8a\u4f4d\u7f6e\u4ee5\u8eb2\u907f\u653b\u51fb\uff0c\u4f46\u4e00\u65b9\u9762\u8fd9\u79cd\u65b9\u6848\u53ea\u80fd\u5904\u7406\u6781\u5c11\u91cf\u7684\u654f\u611f\u6570\u636e\u00a0(\u5982\u53ea\u9488\u5bf9\u6570\u4e2a\u5b57\u8282\u5927\u5c0f\u7684\u52a0\u5bc6\u79d8\u94a5)\u00a0\uff0c\u53e6\u4e00\u65b9\u9762\u5728\u7cfb\u7edf\u82cf\u9192\u65f6\u6216\u8005\u4e0d\u5bf9\u7528\u6237\u91cd\u65b0\u9274\u6743 (\u88ab\u653b\u51fb\u8005\u76f4\u63a5\u83b7\u53d6)\u00a0\u6216\u8005\u9274\u6743\u53d7\u9650\u4e8e\u7528\u6237\u5bc6\u7801\u7684\u6709\u9650\u7684entropy\u00a0(\u53ef\u88ab\u5b57\u5178\u653b\u51fb)\u3002\u53e6\u4e00\u4e9b\u4ea7\u54c1\u5982BitLocker\u867d\u7136\u53ef\u4ee5\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u4f46\u662f\u662f\u901a\u8fc7\u5f3a\u5236\u8ba1\u7b97\u673a\u8fdb\u5165\u4f11\u7720\u72b6\u6001\u00a0(hibernation, \u5373ACPI S4)\u00a0\u6765\u5b9e\u73b0\uff0c\u7531\u4e8e\u786c\u76d8\u6027\u80fd\u7684\u74f6\u9888\u4e25\u91cd\u5f71\u54cd\u53ef\u7528\u6027\uff0c\u5373\u4f7fSSD\u901a\u5e38\u4e5f\u8981\u63a5\u8fd1\u5341\u79d2\u5de6\u53f3\u3002<\/p>\n

\u9274\u4e8e\u5f85\u673a\u72b6\u6001\u7684\u666e\u904d\u6027\uff0c\u6211\u4eec\u63d0\u51fadata-in-sleep\u7684\u6982\u5ff5\uff0c\u6765\u533a\u5206\u4e8edata-at-rest\uff0cdata-in-transit\u4ee5\u53cadata-in-use\u7b49\u5df2\u7ecf\u88ab\u5e7f\u6cdb\u5173\u6ce8\u7684\u95ee\u9898\u3002\u6211\u4eec\u89e3\u51b3data-in-sleep\u95ee\u9898\u7684\u4e24\u4e2a\u539f\u5219\u662f\uff1a1-\u5728\u6574\u4e2a\u5f85\u673a\u671f\u95f4\u6ca1\u6709\u654f\u611f\u6570\u636e\u4ee5\u660e\u6587\u5f62\u5f0f\u66b4\u9732\u4e8e\u5185\u5b58\u4e2d\uff1b2-\u5f53\u7cfb\u7edf\u82cf\u9192\u65f6\u5bf9\u7528\u6237\u7684\u91cd\u65b0\u9274\u6743\u5fc5\u987b\u53ef\u4ee5\u627f\u53d7\u5b57\u5178\u653b\u51fb\u4e14\u4e0d\u53ef\u7ed5\u5f00\u3002<\/p>\n

\u57fa\u4e8e\u8fd9\u4e24\u4e2a\u539f\u5219\uff0c\u6211\u4eec\u8bbe\u8ba1\u5e76\u5b9e\u73b0\u4e86Hypnoguard\uff0c\u4ee5\u4fdd\u62a4data-in-sleep\u4e3a\u76ee\u7684\u7684\u5de5\u5177\u3002\u5b83\u5229\u7528\u73b0\u4ee3CPU\u7684AES-NI\u786c\u4ef6\u52a0\u901f\u6307\u4ee4\u96c6\u3001\u591a\u6838\u5e76\u884c\u5904\u7406\u4ee5\u53ca\u5408\u9002\u7684AES\u5de5\u4f5c\u6a21\u5f0f\uff0c\u5728\u8fdb\u5165\u5f85\u673a\u524d\u5b9e\u73b0\u9ad8\u901f\u7684\u5b8c\u5168\u5185\u5b58\u52a0\u5bc6\u00a0(\u5bf9\u4e8e8GB\u5185\u5b58\u52a0\u5bc6\u6216\u89e3\u5bc6\u53ea\u9700\u8981\u4e00\u79d2\u5de6\u53f3)\u00a0\u3002\u800c\u5728\u7cfb\u7edf\u82cf\u9192\u65f6\uff0c\u6211\u4eec\u6574\u5408CPU\u7684\u53ef\u4fe1\u8ba1\u7b97\u8fd0\u884c\u73af\u5883(\u5982Intel TXT)\u548cTPM\u5b89\u5168\u82af\u7247\u6765\u8fbe\u5230\u7ed1\u5b9a\u7cfb\u7edf\u786c\u4ef6\u5e73\u53f0\u7684\u7528\u6237\u91cd\u9274\u6743\u3002Hypnoguard\u7684\u6838\u5fc3\u7279\u6027\u5373\u8fd9\u79cd\u4e0d\u53ef\u7ed5\u5f00\u7684\u7cfb\u7edf\u786c\u4ef6\u5e73\u53f0\u7ed1\u5b9a\uff1a\u6b63\u786e\u7684\u8f6f\u786c\u4ef6\u8fd0\u884c\u73af\u5883\u51b3\u5b9a\u6b63\u786e\u7684\u79d8\u94a5\u88ab\u91ca\u653e(\u800c\u4e0d\u662f\u5b8c\u5168\u53d6\u51b3\u4e8e\u76f8\u5bf9\u8f83\u5f31\u7684\u7528\u6237\u5bc6\u7801)\uff0c\u9519\u8bef\u7684\u73af\u5883(\u5373\u7ed5\u5f00Hypnoguard)\u65e0\u8bba\u5bc6\u7801\u731c\u6d4b\u6b63\u786e\u4e0e\u5426\u90fd\u65e0\u6cd5\u5f97\u5230\u6b63\u786e\u79d8\u94a5\u3002<\/p>\n

\u5728\u7cfb\u7edf\u90e8\u7f72\u65f6\uff0c\u4e00\u5bf9\u516c\u94a5\u548c\u79c1\u94a5\u88ab\u751f\u6210(\u8db3\u591f\u7684\u957f\u5ea6)\uff0c\u5176\u4e2d\u516c\u94a5\u88ab\u660e\u6587\u4fdd\u5b58\u5728\u516c\u5171\u533a\u57df\u3002\u800c\u79c1\u94a5\u76f4\u63a5\u88ab\u5c01\u5b58(Seal)\u00a0\u5728TPM\u7684NVRAM\u4e2d\uff0c\u7ed1\u5b9a\u4e8e\u6b63\u786e\u7684Hypnoguard\u8fd0\u884c\u73af\u5883\u4ee5\u53ca\u7528\u6237\u5bc6\u7801\u3002\u6bcf\u6b21\u5f85\u673a\u524d\uff0c\u4e00\u4e2a\u8db3\u591f\u5f3a\u7684\u968f\u673a\u5bf9\u79f0\u79d8\u94a5(\u5982128bit\u4ee5\u4e0a\uff0c\u53ea\u4e00\u6b21\u6027\u4f7f\u7528)\u00a0\u88ab\u7528\u6765\u52a0\u5bc6\u6574\u4e2a\u5185\u5b58\u3002\u800c\u540e\u6b64\u5bf9\u79f0\u79d8\u94a5\u7acb\u5373\u88ab\u4e0a\u8ff0\u516c\u94a5\u52a0\u5bc6\u5b58\u653e\u4e8e\u516c\u5171\u533a\u57df\u3002\u7cfb\u7edf\u8fdb\u5165\u5f85\u673a\u3002<\/p>\n

\u81f3\u6b64\uff0c\u6574\u4e2a\u7cfb\u7edf\u5185\u5b58\u4e3a\u52a0\u5bc6\u72b6\u6001\uff0c\u653b\u51fb\u8005\u65e0\u6cd5\u76f4\u63a5\u7a83\u53d6\u3002\u7531\u4e8e\u6211\u4eec\u9009\u62e9\u7684\u79d8\u94a5\u957f\u5ea6\u9002\u5f53(\u548c\u7528\u6237\u7684\u5bc6\u7801\u5f3a\u5ea6\u65e0\u5173)\uff0c\u7ed5\u8fc7Hypnoguard\u8fdb\u884c\u5b57\u5178\u653b\u51fb\u901a\u5e38\u662f\u662f\u4e0d\u73b0\u5b9e\u7684\u3002\u5982\u679c\u4ed6\u8fdb\u5165\u6b63\u786e\u7684Hypnoguard\u73af\u5883\uff0c\u867d\u7136\u6b64\u65f6\u7684\u4fdd\u62a4\u53ea\u53d6\u51b3\u4e8e\u7528\u6237\u5bc6\u7801\uff0c\u4f46\u731c\u6d4b\u5bc6\u7801\u4f1a\u4ee5\u5f88\u9ad8\u6982\u7387\u89e6\u53d1\u5bf9TPM\u4e2d\u7684\u79c1\u94a5\u7684\u6c38\u4e45\u6027\u5220\u9664\u3002\u6211\u4eec\u53ef\u4ee5\u914d\u7f6e\u7279\u5b9a\u7684\u7b56\u7565(\u5982\u9519\u8bef\u6b21\u6570)\u00a0\u6765\u51b3\u5b9a\u5bf9\u5220\u9664\u79d8\u94a5\u7684\u89e6\u53d1\uff1b\u4e5f\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u5b9a\u8303\u56f4\u7684\u5bc6\u7801\u4e3a\u5220\u9664\u5bc6\u7801\u00a0(deletion\u00a0passwords)\u00a0\uff0c\u65e2\u53ef\u7528\u4e8e\u63d0\u9ad8\u653b\u51fb\u8005\u89e6\u53d1\u5220\u9664\u7684\u6982\u7387\u4e5f\u53ef\u7528\u4e8e\u7528\u6237\u5728\u88ab\u80c1\u8feb\u65f6\u63d0\u4f9b\u7ed9\u653b\u51fb\u8005\u3002<\/p>\n

\u5728\u7cfb\u7edf\u4ece\u5f85\u673a\u72b6\u6001\u6062\u590d\u65f6\uff0cHypnoguard\u8fdb\u5165TXT\u73af\u5883\uff0c\u5e76\u63d0\u793a\u7528\u6237\u8f93\u5165\u5bc6\u7801\u3002\u6b64\u5bc6\u7801\u548c\u5f53\u524d\u6b63\u786e\u7684\u8f6f\u786c\u4ef6\u73af\u5883\u4e00\u8d77\u7528\u4e8e\u91ca\u653e\u4e0a\u8ff0\u79c1\u94a5\u3002\u79c1\u94a5\u89e3\u5bc6\u5bf9\u79f0\u79d8\u94a5\u540e\u7acb\u5373\u88ab\u4ece\u4e34\u65f6\u5185\u5b58\u4e2d\u5220\u9664\u3002\u968f\u5373\uff0c\u5bf9\u79f0\u79d8\u94a5\u89e3\u5bc6\u6574\u4e2a\u5185\u5b58\u5e76\u5c06\u63a7\u5236\u6743\u4ea4\u56de\u64cd\u4f5c\u7cfb\u7edf\u3002\u6062\u590d\u65f6\u7684\u7528\u6237\u5bc6\u7801\u8f93\u5165\u53ef\u4ee5\u53d6\u4ee3\u64cd\u4f5c\u7cfb\u7edf\u7684\u7528\u6237\u5bc6\u7801\u8f93\u5165\u6765\u5b8c\u5168\u4fdd\u6301\u73b0\u6709\u7684\u7528\u6237\u4f53\u9a8c\uff1a\u5f85\u673a\u65f6\u65e0\u9700\u5bc6\u7801\uff0c\u5524\u9192\u65f6\u8f93\u5165\u4e00\u6b21\u3002\u8fd9\u79cd\u4f18\u52bf\u5f97\u76ca\u4e8e\u516c\u94a5\u7cfb\u7edf\u7684\u5f15\u5165\uff0c\u5373\u8fdb\u5165\u5f85\u673a\u65f6\u65e0\u9700\u5bc6\u7801\u548cTXT\u73af\u5883\u91ca\u653e\u79d8\u94a5\u00a0(\u4f7f\u7528\u516c\u94a5\u5373\u53ef)\uff0c\u800c\u53ea\u5728\u5524\u9192\u65f6\u9700\u8981\u3002<\/p>\n

\u5728\u6b64\u9879\u76ee\u4e2d\uff0c\u6211\u4eec\u5f00\u521b\u6027\u5730\u89e3\u51b3\u4e86\u4e00\u4e9b\u6280\u672f\u95ee\u9898\uff0c\u5982\u7cfb\u7edf\u5524\u9192\u72b6\u6001\u4e0b\u7684\u663e\u793a\u548c\u8f93\u5165(\u4e00\u76f4\u5b58\u5728\u4f46\u672a\u88ab\u89e3\u51b3\u7684\u95ee\u9898)\uff1b\u6211\u4eec\u4e5f\u4f9d\u636eHypnoguard\u7684\u7279\u5b9a\u9700\u6c42\u63d0\u51fa\u4e86\u6211\u4eec\u6539\u8fdb\u7248\u7684AES\u00a0GCM\u89e3\u5bc6\u8fc7\u7a0b\u3002<\/p>\n

 <\/p>\n

\u8bba\u6587\u94fe\u63a5:<\/b><\/strong>\u00a0Hypnoguard: Protecting Secrets across Sleep-wake Cycles<\/p>\n

http:\/\/dl.acm.org\/citation.cfm?id=2978372<\/p>\n

\u90e8\u5206<\/b><\/strong>\u53c2\u8003\u6587\u732e<\/b><\/strong>\uff1a<\/p>\n

Guan, L., Lin, J., Luo, B., and Jing, J. Copker: Computing with private keys without RAM. In NDSS’14 (San Diego, CA, USA, Feb. 2014).<\/p>\n

M\u00fcller, T., Dewald, A., and Freiling, F. C. AESSE: A cold-boot resistant implementation of AES. In European Workshop on System Security (EuroSec’10) (Paris, France, Apr. 2010).<\/p>\n

M\u00fcller, T., Taubmann, B., and Freiling, F. C. TreVisor: OS-independent software-based full disk encryption secure against main memory attacks. In Applied Cryptography and Network Security (ACNS’12) (Singapore, June 2012).<\/p>\n

Tang, Y., Ames, P., Bhamidipati, S., Bijlani, A., Geambasu, R., and Sarda, N. CleanOS: Limiting mobile data exposure with idle eviction. In USENIX Operating Systems Design and Implementation (OSDI’12) (Hollywood, CA, USA, Oct. 2012).<\/p>\n

Vidas, T. Volatile memory acquisition via warm boot memory survivability. In Hawaii International Conference on System Sciences (HICSS’10) (Honolulu, HI, USA, Jan. 2010).<\/p>\n

Xia, Y., Liu, Y., Tan, C., Ma, M., Guan, H., Zang, B., and Chen, H. TinMan: Eliminating confidential mobile data exposure with security oriented offloading. In EuroSys’15 (Bordeaux, France, Apr. 2015).<\/p>\n

Zhao, L., and Mannan, M. Gracewipe: Secure and verifiable deletion under coercion. In NDSS’15 (San Diego, CA, USA, Feb. 2015).<\/p>\n

Zhao, L., and Mannan, M. Hypnoguard: Protecting secrets across sleep-wake cycles. Tech. Rep. 981477, Concordia University, Aug. 2016. http:\/\/spectrum.library.concordia.ca\/981477\/.<\/p>\n

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\u4f5c\u8005<\/b><\/strong>\u7b80\u4ecb<\/b><\/strong>\u00a0:\u00a0\u00a0\u8d75\u8fde\u83b9\u00a0(Viau)\uff0cPh.D. Candidate\uff0c\u73b0\u5c31\u8bfb\u4e8eConcordia University\u00a0(\u52a0\u62ff\u5927)\u00a0\u3002\u6bd5\u4e1a\u4e8e\u5929\u6d25\u5927\u5b66\u83b7\u5f97\u901a\u4fe1\u4e0e\u4fe1\u606f\u7cfb\u7edf\u7855\u58eb\u5b66\u4f4d\u3002\u6b64\u524d\u7684\u5de5\u4f5c\u9886\u57df\u5305\u62ec\u5d4c\u5165\u5f0f\u7cfb\u7edf\u8f6f\u786c\u4ef6\u4ee5\u53ca\u5927\u578b\u4e3b\u673a(Mainframes)\uff0c\u5728\u4e1a\u5185\u4ece\u4e8b\u76f8\u5173\u5de5\u4f5c6\u5e74\u00a0(IBM China)\u00a0\u3002\u5f53\u524d\u4e3b\u8981\u7814\u7a76\u65b9\u5411\u4e3a\u4fe1\u606f\u7cfb\u7edf\u5b89\u5168\uff0c\u5305\u62ec\u786c\u4ef6\/\u7cfb\u7edf\u76f8\u5173\u7684\u5b89\u5168\u95ee\u9898\uff0c\u57fa\u4e8e\u5bc6\u7801\u7684\u9274\u6743\uff0c\u53ef\u4fe1\u8ba1\u7b97\u7b49\u3002\u5e76\u53d1\u8868\u591a\u7bc7\u6587\u7ae0\u4e8eACM CCS, NDSS, NSPW\u4ee5\u53caIEEE TIFS\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

Hypnoguard: \u4fdd\u62a4\u5f85\u673a\u72b6\u6001\u4e0b\u7684\u5185\u5b58\u6570\u636e \u4f5c\u8005\u00a0:\u00a0\u00a0\u8d75\u8fde\u83b9\u00a0(Viau)\uff0cPh.D. Ca… 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-1693","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\/1693","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=1693"}],"version-history":[{"count":1,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1693\/revisions"}],"predecessor-version":[{"id":1694,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1693\/revisions\/1694"}],"wp:attachment":[{"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1693"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/202.112.238.40\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}