{"id":9879,"date":"2025-10-07T09:24:56","date_gmt":"2025-10-07T01:24:56","guid":{"rendered":"https:\/\/aict.nkust.edu.tw\/digitrans\/?p=9879"},"modified":"2025-10-07T09:24:58","modified_gmt":"2025-10-07T01:24:58","slug":"%e6%96%b0%e6%94%bb%e6%93%8awiretap%e5%81%b4%e9%8c%84ddr4%e5%be%a9%e5%8e%9fsgx%e7%a7%81%e9%91%b0%ef%bc%8c%e5%8b%95%e6%90%96intel%e9%81%a0%e7%ab%af%e7%a8%bd%e6%a0%b8%e5%8f%af%e4%bf%a1%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/aict.nkust.edu.tw\/digitrans\/?p=9879","title":{"rendered":"\u65b0\u653b\u64caWireTap\u5074\u9304DDR4\u5fa9\u539fSGX\u79c1\u9470\uff0c\u52d5\u6416Intel\u9060\u7aef\u7a3d\u6838\u53ef\u4fe1\u5ea6"},"content":{"rendered":"\n<p>\u5728\u53ef\u4fe1\u57f7\u884c\u74b0\u5883\uff08TEE\uff09\u8207\u9060\u7aef\u7a3d\u6838\uff08remote attestation\uff09\u88ab\u8996\u70ba\u5340\u584a\u93c8\u7bc0\u9ede\u4fe1\u4efb\u3001\u6a5f\u5bc6\u904b\u7b97\u8207\u96f2\u7aef\u5b89\u5168\u57fa\u77f3\u7684\u60c5\u6cc1\u4e0b\uff0c\u6b64\u7bc7\u6587\u7ae0\u62ab\u9732\u4e86\u4e00\u9805\u4ee4\u4eba\u4e0d\u5b89\u7684\u7814\u7a76\u6210\u679c\uff1a\u7531\u666e\u6e21\u5927\u5b78\uff08Purdue\uff09\u8207\u55ac\u6cbb\u4e9e\u7406\u5de5\u5b78\u9662\uff08Georgia Tech\uff09\u7814\u7a76\u5718\u968a\u767c\u8868\u7684WireTap\uff0c\u793a\u7bc4\u4e86\u5982\u4f55\u4ee5\u6975\u4f4e\u9580\u6abb\u3001\u5229\u7528DDR4\u8a18\u61b6\u9ad4\u532f\u6d41\u6392\u7684\u7269\u7406\u7aca\u807d\u65b9\u5f0f\uff0c\u5fa9\u539f\u4f3a\u670d\u5668\u5728\u8a18\u61b6\u9ad4\u7e3d\u7dda\u4e0a\u5f80\u8fd4\u7684\u52a0\u5bc6\u8cc7\u6599\uff0c\u9032\u800c\u7834\u89e3 SGX Quoting Enclave \u7684 ECDSA \u7c3d\u7ae0\u91d1\u9470\uff0c\u507d\u9020\u770b\u4f3c\u300c\u5b98\u65b9\u9a57\u8b49\u300d\u7684\u7a3d\u6838\u5831\u544a\uff08Quote\uff09\uff0c\u52d5\u6416\u4f9d\u8cf4 SGX \u9060\u7aef\u7a3d\u6838\u5efa\u7acb\u7684\u4fe1\u4efb\u93c8\u3002<\/p>\n\n\n\n<p>\u6587\u7ae0\u9996\u5148\u63cf\u8ff0 WireTap \u7684\u5be6\u4f5c\u65b9\u5f0f\uff1a\u7814\u7a76\u4eba\u54e1\u5728\u4e3b\u6a5f\u677f\u8207DDR4\u8a18\u61b6\u9ad4\u6a21\u7d44\u4e4b\u9593\u653e\u5165\u88ab\u52d5\u8f49\u63a5\u5668\uff0c\u63a5\u4e0a\u5546\u7528\u908f\u8f2f\u5206\u6790\u5100\uff0c\u89c0\u5bdf\u52a0\u5bc6\u5f8c\u7684DRAM\u8b80\u5beb\uff08ciphertext\uff09\u6a21\u5f0f\u3002\u95dc\u9375\u5728\u65bc\u8a72\u5e73\u53f0\u63a1\u7528\u7684\u8a18\u61b6\u9ad4\u52a0\u5bc6\u70ba\u6c7a\u5b9a\u6027\u52a0\u5bc6\uff08Deterministic Encryption\uff09\u2014\u2014\u540c\u4e00\u660e\u6587\u5728\u76f8\u540c\u60c5\u5883\u4e0b\u7522\u751f\u76f8\u540c\u5bc6\u6587\uff0c\u7814\u7a76\u5718\u968a\u56e0\u6b64\u80fd\u5efa\u7acb\u5bc6\u6587\u8207\u660e\u6587\u7684\u5c0d\u6620\u95dc\u4fc2\uff0c\u4e26\u5f9e\u4e2d\u64f7\u53d6\u5c0d\u7c3d\u7ae0\u8a08\u7b97\u53ef\u5229\u7528\u7684\u5074\u8a0a\u606f\u3002\u4f8b\u5982\u5728 ECDSA \u9019\u985e\u7528\u5230\u96a8\u6a5f\u6578\uff08nonce\uff09\u7684\u7c3d\u7ae0\u6f14\u7b97\u6cd5\u4e2d\uff0c\u4e00\u65e6\u80fd\u5920\u91cd\u5efa\u8a72 nonce\uff0c\u5c31\u53ef\u80fd\u63a8\u5c0e\u51fa\u79c1\u9470\u3002<\/p>\n\n\n\n<p>\u5728\u9a57\u8b49\u793a\u7bc4\u4e2d\uff0c\u7814\u7a76\u5718\u968a\u6210\u529f\u900f\u904e\u89c0\u6e2c\u8a18\u61b6\u9ad4\u532f\u6d41\u6392\u7684\u52a0\u5bc6\u6d41\u91cf\u8207\u5df2\u77e5\/\u53ef\u63a7\u7684\u64cd\u4f5c\u5e8f\u5217\uff0c\u9084\u539f\u51fa\u7528\u65bc ECDSA \u7684 nonce\uff0c\u9032\u800c\u53d6\u5f97SGX Quoting Enclave \u7684\u7c3d\u7ae0\u91d1\u9470\u3002\u53d6\u5f97\u91d1\u9470\u5f8c\uff0c\u4ed6\u5011\u80fd\u7c3d\u767c\u507d\u9020\u7684 SGX Quote\uff0c\u800c\u9019\u4e9b\u507d\u9020\u7684\u7a3d\u6838\u5831\u544a\u7adf\u53ef\u88ab Intel \u7684 DCAP Quote Verification Library \u6240\u63a5\u53d7 \u2014\u2014 \u63db\u8a00\u4e4b\uff0c\u7cfb\u7d71\u3001\u61c9\u7528\u6216\u7b2c\u4e09\u65b9\u82e5\u53ea\u6aa2\u9a57 Quote \u7684\u7c3d\u7ae0\u5408\u6cd5\u6027\uff0c\u5c07\u96e3\u4ee5\u5206\u8fa8\u9019\u4e9b\u507d\u9020\u5831\u544a\u8207\u771f\u5be6\u5831\u544a\u3002<\/p>\n\n\n\n<p>\u4f5c\u8005\u9032\u4e00\u6b65\u8aaa\u660e\u5be6\u52d9\u5f71\u97ff\uff1a\u7814\u7a76\u5718\u968a\u5c07\u6b64\u653b\u64ca\u61c9\u7528\u5728\u591a\u500b\u4f9d\u8cf4 SGX \u7684\u5340\u584a\u93c8\u6216\u6a5f\u5bc6\u904b\u7b97\u5c08\u6848\u60c5\u5883\u4e2d\uff0c\u793a\u7bc4\u82e5\u80fd\u9020\u51fa\u88ab\u9a57\u8b49\u7684\u507d\u9020\u7a3d\u6838\u5831\u544a\uff0c\u653b\u64ca\u8005\u53ef\uff08\u5728\u6e2c\u8a66\u74b0\u5883\u4e0b\uff09\u5047\u5192\u53ef\u4fe1\u7bc0\u9ede\u52a0\u5165\u7db2\u8def\u3001\u53d6\u5f97\u5171\u8b58\u7a2e\u5b50\uff08\u4f8b\u5982 Secret Network\uff09\uff0c\u9032\u800c\u89e3\u5bc6\u4ea4\u6613\u5167\u5bb9\uff1b\u6216\u507d\u88dd\u53d7\u4fe1\u57f7\u884c\u74b0\u5883\u4ee5\u8b80\u53d6\u8cc7\u6599\uff08Phala\u3001Integritee\uff09\u3001\u6216\u507d\u9020\u5132\u5b58\u8b49\u660e\u4ee5\u9818\u53d6\u734e\u52f5\uff08Crust\uff09\u3002\u91cd\u9ede\u5728\u65bc\uff1a\u653b\u64ca\u4e0d\u662f\u7834\u58de\u5171\u8b58\u5354\u5b9a\u672c\u8eab\uff0c\u800c\u662f\u85c9\u7531\u507d\u9020\u7684\u7a3d\u6838\u93c8\uff0c\u7e5e\u904e\u4fe1\u4efb\u524d\u63d0\u3002<\/p>\n\n\n\n<p>\u8b93\u4eba\u4e0d\u5b89\u7684\u662f\uff0cWireTap \u7684\u5be6\u4f5c\u9580\u6abb\u8207\u6210\u672c\u90fd\u4e0d\u9ad8\u3002\u6b64\u7bc7\u6587\u7ae0\u6307\u51fa\uff0c\u6574\u5957\u8a2d\u5099\u6210\u672c\u4f4e\u65bc 1,000 \u7f8e\u5143\uff0c\u6750\u6599\u4ee5\u5e02\u552e\u96f6\u4ef6\u8207\u57fa\u672c\u96fb\u5de5\u5de5\u5177\u5373\u53ef\u53d6\u5f97\uff0c\u4ea6\u4e0d\u9700\u5be6\u9a57\u5ba4\u7b49\u7d1a\u74b0\u5883\uff0c\u986f\u793a\u5728\u5177\u6709\u7269\u7406\u8fd1\u7aef\u5b58\u53d6\u7684\u60c5\u5883\u4e0b\uff0c\u653b\u64ca\u5728\u5be6\u52d9\u4e0a\u5177\u53ef\u884c\u6027\u3002\u53d7\u5f71\u97ff\u8655\u7406\u5668\u7bc4\u570d\u5247\u4ee5\u7b2c 3 \u4ee3Intel Xeon Scalable \u70ba\u4e3b\uff1b\u8f03\u65e9\u671f\u7684 Core \u8207 Xeon-E \u56e0\u63a1\u7528\u4e0d\u540c\u8a18\u61b6\u9ad4\u52a0\u5bc6\u5f15\u64ce\u800c\u4e0d\u53d7\u5f71\u97ff\uff0cXeon-D \u5c1a\u672a\u5b9a\u8ad6\uff1b\u800c\u7b2c 4\u30015 \u4ee3 Xeon \u82e5\u642d\u914d DDR5 \u5247\u4e0d\u5728\u6b64\u7814\u7a76\u7bc4\u570d\u5167\u3002<\/p>\n\n\n\n<p>\u95dc\u65bc\u5075\u6e2c\u8207\u56de\u6eaf\uff0c\u4f5c\u8005\u5f37\u8abf\u4e00\u5927\u96e3\u984c\uff1a\u4e00\u65e6\u653b\u64ca\u6210\u529f\uff0c\u507d\u9020\u7684 SGX \u7a3d\u6838\u5831\u544a\u5728\u4e8b\u5f8c\u5e7e\u4e4e\u7121\u6cd5\u8207\u5408\u6cd5\u5831\u544a\u5340\u5206\uff0c\u5e7e\u4e4e\u7121\u8de1\u53ef\u5faa\u3002\u7814\u7a76\u5718\u968a\u76ee\u524d\u4e5f\u672a\u5728\u91ce\u5916\u89c0\u5bdf\u5230\u6b64\u653b\u64ca\u88ab\u5be6\u969b\u5229\u7528\u7684\u8de1\u8c61\uff0c\u4f46\u793a\u7bc4\u986f\u793a\u4e00\u65e6\u653b\u64ca\u8005\u5177\u5099\u7269\u7406\u8fd1\u7aef\u901a\u8def\uff0c\u98a8\u96aa\u4fbf\u4e0d\u53ef\u5ffd\u8996\u3002<\/p>\n\n\n\n<p>Intel \u5c0d\u6b64\u7684\u56de\u61c9\uff08\u5982\u6b64\u7bc7\u6587\u7ae0\u6240\u8ff0\uff09\u4e3b\u5f35\uff1aWireTap \u548c\u540c\u671f\u7684 Battering RAM \u7814\u7a76\u90fd\u5047\u8a2d\u653b\u64ca\u8005\u80fd\u4ee5\u532f\u6d41\u6392\u63d2\u63a5\u53d6\u5f97\u7269\u7406\u8fd1\u7aef\u5b58\u53d6\uff08bus tapping\uff09\uff0c\u9019\u5df2\u8d85\u51fa AES-XTS \u5f0f\u8a18\u61b6\u9ad4\u52a0\u5bc6\u7684\u9632\u8b77\u908a\u754c\uff1b\u56e0\u6b64 Intel \u4e0d\u6253\u7b97\u70ba\u6b64\u6307\u6d3e CVE\u3002Intel \u5efa\u8b70\u5728\u652f\u63f4\u7684\u8655\u7406\u5668\u4e0a\u555f\u7528 Intel TME-MK\uff08Total Memory Encryption &#8211; Multi-Key\uff09\uff0c\u5176\u63d0\u4f9b\u52a0\u5bc6\u5b8c\u6574\u6027\u4fdd\u8b77\u4ee5\u62b5\u79a6\u90e8\u5206 alias-based \u985e\u578b\u653b\u64ca\uff1bTME-MK \u5df2\u5728\u7b2c 5 \u4ee3 Xeon\uff08Emerald Rapids\uff09\u8207\u90e8\u5206 Xeon 6 P-cores\uff08Granite Rapids\uff09\u4e0a\u63d0\u4f9b\u3002\u540c\u6642\uff0cIntel \u4e5f\u63d0\u9192\u9a57\u8b49\u7aef\uff08verifier\uff09\u5728\u63a1\u4fe1\u7a3d\u6838\u5831\u544a\u6642\u9700\u7406\u89e3\u5e73\u53f0\u7684\u5be6\u9ad4\u9632\u8b77\u5c6c\u6027\uff0c\u4e26\u4ee5\u5e73\u53f0\u6191\u8b49\u4f86\u8b49\u5be6\u88ab\u9a57\u8b49\u786c\u9ad4\u7684\u7269\u7406\u63a7\u5236\u60c5\u5f62\u3002<\/p>\n\n\n\n<p>\u90a3\u9ebc\u8b80\u8005\uff0f\u7cfb\u7d71\u7ba1\u7406\u8005\u8a72\u600e\u9ebc\u505a\uff1f\u6587\u7ae0\u6574\u7406\u4e86\u53ef\u884c\u7684\u5be6\u52d9\u5efa\u8b70\u8207\u9632\u8b77\u89c0\u9ede\uff0c\u5206\u6210\u4e09\u5927\u9762\u5411\uff1a<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u7acb\u523b\u53ef\u505a\uff08\u71df\u904b\uff0f\u8cc7\u5b89\u63a7\u5236\uff09\n<ul class=\"wp-block-list\">\n<li>\u5f37\u5316\u5be6\u9ad4\u5b89\u5168\uff1a\u78ba\u4fdd\u8cc7\u6599\u4e2d\u5fc3\u8207\u4f3a\u670d\u5668\u6a5f\u6ac3\u7684\u7269\u7406\u7ba1\u63a7\uff08\u9580\u7981\u3001\u4e0a\u9396\u6a5f\u6ac3\u3001\u5bc6\u5c01\u9632\u7aca\u6a19\u7c64\/tamper-evident seals\u3001CCTV\u3001\u53d7\u63a7\u4eba\u54e1\u51fa\u5165\u7d00\u9304\uff09\uff0c\u6e1b\u5c11\u4efb\u4f55\u5f62\u5f0f\u7684\u8fd1\u7aef\u532f\u6d41\u6392\u63a5\u89f8\u6a5f\u6703\u3002<\/li>\n\n\n\n<li>\u4e3b\u6a5f\u4f9b\u61c9\u93c8\u8207\u8a17\u7ba1\u5be9\u67e5\uff1a\u907f\u514d\u672a\u6388\u6b0a\u7684\u73fe\u5834\u7dad\u8b77\u6216\u7b2c\u4e09\u65b9\u6a5f\u623f\u4eba\u54e1\u63a5\u89f8\u654f\u611f\u4e3b\u6a5f\uff1b\u5c0d\u4ee3\u7ba1\/\u79df\u7528\u4f3a\u670d\u5668\u63a1\u66f4\u56b4\u683c SLA \u8207\u7a3d\u6838\u3002<\/li>\n\n\n\n<li>\u8fc5\u901f\u5347\u7d1a\u8207\u555f\u7528\u53ef\u7528\u786c\u9ad4\u4fdd\u8b77\uff1a\u82e5\u5e73\u53f0\u652f\u63f4 TME-MK 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\u91d1\u9470\u7684\u4f7f\u7528\u7bc4\u570d\u3001\u6e1b\u5c11\u5728\u53ef\u88ab\u5916\u754c\u89f8\u53ca\u7684\u6d41\u7a0b\u4e2d\u4f7f\u7528\u95dc\u9375\u91d1\u9470\uff0c\u4e26\u5b9a\u671f\u8f2a\u63db\u8207\u5be9\u8a08\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u67b6\u69cb\u8207\u8a2d\u8a08\u9762\uff08\u7cfb\u7d71\uff0f\u61c9\u7528\uff09\n<ul class=\"wp-block-list\">\n<li>\u591a\u5c64\u4fe1\u4efb\uff08defense-in-depth\uff09\uff1a\u5c0d\u95dc\u9375\u7a0b\u5e8f\u4e0d\u55ae\u4f9d\u8cf4\u55ae\u4e00 TEE \u8207\u55ae\u4e00\u8def\u5f91\u7684\u7a3d\u6838\uff0c\u63a1\u7528\u591a\u65b9\u6aa2\u9a57\uff08\u4f8b\u5982\u591a\u5ee0\u724c TEE\u3001\u7570\u69cb\u8b49\u660e\u3001\u591a\u65b9\u9580\u6abb\u7c3d\u7ae0\/threshold 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