{"id":3470,"date":"2025-06-16T11:07:10","date_gmt":"2025-06-16T03:07:10","guid":{"rendered":"https:\/\/www.15zhi.net\/blog\/?p=3470"},"modified":"2025-06-16T11:07:10","modified_gmt":"2025-06-16T03:07:10","slug":"202506-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-blockchain-based-cp-abe-data-sharing-and-privacy-preserving-scheme-using-distributed-kms-and-zero-knowledge-proof","status":"publish","type":"post","link":"https:\/\/www.15zhi.net\/blog\/202506-%e8%ae%ba%e6%96%87%e7%a0%94%e8%af%bb-blockchain-based-cp-abe-data-sharing-and-privacy-preserving-scheme-using-distributed-kms-and-zero-knowledge-proof\/","title":{"rendered":"202506 \u8bba\u6587\u7814\u8bfb-Blockchain-based CP-ABE data sharing and privacy-preserving scheme using distributed KMS and zero-knowledge proof"},"content":{"rendered":"\n<p>\u4f5c\u8005\uff1aZhixin Ren , Enhua Yan , Taowei Chen , Yimin Yu<br>\u6765\u6e90\uff1aJKSU \u2013 Computer and Information Sciences<br>\u5355\u4f4d\uff1a\u4e91\u5357\u8d22\u7ecf\u5927\u5b66\u4fe1\u606f\u5b66\u9662  \u667a\u80fd\u5e94\u7528\u7814\u7a76\u9662<br>\u65f6\u95f4\uff1a2024\u5e742\u6708<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u80cc\u666f<\/h2>\n\n\n\n<p>\u6570\u5b57\u65f6\u4ee3\uff0c\u6570\u636e\u5171\u4eab\u6280\u672f\u4f5c\u4e3a\u5404\u4e2a\u9886\u57df\u4e0d\u53ef\u6216\u7f3a\u7684\u7ec4\u6210\u90e8\u5206\uff0cCP-ABE\uff08\u57fa\u4e8e\u5bc6\u6587\u7b56\u7565\u7684\u5c5e\u6027\u52a0\u5bc6\uff09\u6280\u672f\u4f5c\u4e3a\u4e00\u4e2a\u89e3\u51b3\u9690\u79c1\u4fdd\u62a4\u548c\u8bbf\u95ee\u63a7\u5236\u7684\u6280\u672f\u65b9\u5411\uff0c\u5728\u533a\u5757\u94fe\u73af\u5883\u4e2d\u5b58\u5728\u591a\u4e2a\u95ee\u9898\u4ecd\u5f85\u89e3\u51b3\u30021.\u5bc6\u94a5\u96c6\u4e2d\u5f0f\u7ba1\u7406\u9020\u6210\u5355\u70b9\u95ee\u9898\u548c\u53ef\u6269\u5c55\u6027\u5dee\u30022.\u65e0\u6cd5\u9a8c\u8bc1\u4ee3\u7406\u91cd\u52a0\u5bc6\u7684\u6b63\u786e\u6027\u30023.\u533a\u5757\u94fe\u8fd0\u884c\u6210\u672cgas\u9ad8\u30024.\u8282\u70b9\u6fc0\u52b1\u673a\u5236\u7f3a\u4e4f\uff0c\u53c2\u4e0e\u5ea6\u4f4e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6838\u5fc3\u8d21\u732e<\/h2>\n\n\n\n<p>1.\u5bf9\u4e8e\u5bc6\u94a5\u96c6\u4e2d\u7ba1\u7406\u9020\u6210\u7684\u5355\u70b9\u4f9d\u8d56\uff0c\u8bba\u6587\u63d0\u51fa\u95e8\u9650\u5f0f\u4ee3\u7406\u91cd\u52a0\u5bc6\u65b9\u6848\uff0c\u901a\u8fc7\u5bc6\u94a5\u5c01\u88c5\u673a\u5236KEM\uff0c\u5c06\u4e3b\u5bc6\u94a5MSK\u5206\u7247\uff0c\u5c06\u5bc6\u94a5\u7ba1\u7406\u7cfb\u7edf\u96c6\u6210\u5230\u533a\u5757\u94fe\u57fa\u7840\u8bbe\u65bd\u4e2d\uff0c\u591a\u4e2aPREN\u8282\u70b9\u5171\u540c\u91cd\u52a0\u5bc6\uff0c\u907f\u514d\u4e86\u5bf9\u4e8e\u5355\u4e00\u5bc6\u94a5\u4e2d\u5fc3\u7684\u4f9d\u8d56\u95ee\u9898\u3002<br>2.\u5bf9\u9a8c\u8bc1\u91cd\u52a0\u5bc6\u7ed3\u679c\u7684cFrag\u7684\u6b63\u786e\u6027\uff0c\u91c7\u7528Fiat-Shamir Heuristic\u534f\u8bae\u5c06zk-SNARKs\u4ea4\u4e92\u5f0f\u8bc1\u660e\u8f6c\u6362\u4e3a\u975e\u4ea4\u4e92\u5f0f\u8bc1\u660e\u3002\u901a\u8fc7\u751f\u4ea7\u96f6\u77e5\u8bc6\u8bc1\u660e\u786e\u4fdd\u91cd\u52a0\u5bc6\u8fc7\u7a0b\u7531\u6388\u6743\u4ee3\u7406\u6267\u884c\u4e14\u91cd\u52a0\u5bc6\u8fc7\u7a0b\u672a\u88ab\u7be1\u6539\u3002<br>3.\u4e3a\u63d0\u9ad8\u533a\u5757\u94fe\u7f51\u7edc\u7684\u53ef\u6269\u5c55\u6027\u5e76\u51cf\u5c11gas\u6d88\u8017\uff0c\u8bbe\u8ba1\u4e86\u4e00\u79cd\u57fa\u4e8ezk-SNARKs\u7684\u4ea4\u6613\u805a\u5408\u673a\u5236\uff0cOPN\u8282\u70b9\u901a\u8fc7\u5c06\u591a\u4e2a\u6570\u636e\u8bbf\u95ee\u4ea4\u6613\u805a\u5408\u4e3a\u4e00\u4e2a\u903b\u8f91\u6279\u6b21\uff0c\u6279\u91cf\u6784\u9020zk\u8bc1\u660e\u5e76\u4e0a\u94fe\u4ee5\u9a8c\u8bc1\u8d26\u6237\u72b6\u6001\u8f6c\u6362\u7684\u6709\u6548\u6027\u3002<br>4.\u5f15\u5165\u4e86\u8282\u70b9\u6fc0\u52b1\u548c\u60e9\u7f5a\u673a\u5236\uff0c\u589e\u5f3a\u7f51\u8def\u4e2d\u8282\u70b9\u7684\u8bda\u5b9e\u53c2\u4e0e\uff0c\u60e9\u7f5a\u6076\u610f\u884c\u4e3a\uff0c\u63d0\u5347\u7cfb\u7edf\u7ec4\u7ec7\u6d3b\u6027\u548c\u7a33\u5b9a\u6027\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6280\u672f\u6846\u67b6<\/h2>\n\n\n\n<p>\u8bba\u6587\u8bbe\u8ba1\u4e86\u4e00\u4e2a\u9762\u5411\u9690\u79c1\u6570\u636e\u8bbf\u95ee\u7684\u53bb\u4e2d\u5fc3\u5316\u67b6\u6784\uff0c\u878d\u5408\u4e86\u533a\u5757\u94fe\u3001CP-ABE\u3001PRE\u3001zk-SNARK\u4e0edKMS\u7b49\u6280\u672f\uff0c\u4e3b\u8981\u5b9e\u73b0\u4e86DO\u6570\u636e\u62e5\u6709\u8005\u5230DU\u6570\u636e\u4f7f\u7528\u8005\u7684\u9690\u79c1\u534f\u4f5c\u6d41\u7a0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"318\" src=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65-1024x318.png\" alt=\"\" class=\"wp-image-3490\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65-1024x318.png 1024w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65-300x93.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65-768x238.png 768w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65-1536x477.png 1536w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-65.png 1792w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u4e3b\u8981\u53c2\u4e0e\u8282\u70b9\uff1a<br>DO\u6570\u636e\u62e5\u6709\u8005\uff1a\u53d1\u5e03\u6570\u636e\u3001\u8bbe\u5b9a\u8bbf\u95ee\u7b56\u7565\u3001\u52a0\u5bc6\u5e76\u4e0a\u4f20\u8d44\u6e90\u76ee\u5f55\u4e0e\u6570\u636e<br>DU\u6570\u636e\u4f7f\u7528\u8005\uff1a\u57fa\u4e8e\u5c5e\u6027\u5bc6\u94a5\u8bf7\u6c42\u89e3\u5bc6\u6570\u636e\uff0c\u9700\u7ecf\u6388\u6743\u548c\u91cd\u52a0\u5bc6<br>PREN\u4ee3\u7406\u91cd\u52a0\u5bc6\u8282\u70b9\uff1a\u63a5\u53d7 DO \u63d0\u4f9b\u7684\u91cd\u52a0\u5bc6\u5bc6\u94a5\uff0c\u5bf9\u5bc6\u6587\u8fdb\u884c\u683c\u5f0f\u8f6c\u6362\uff0c\u4f7f\u5176\u9002\u914d DU \u7684\u5bc6\u94a5<br>OPN\u64cd\u4f5c\u8282\u70b9\uff1a\u8d1f\u8d23\u6536\u96c6\u91cd\u52a0\u5bc6\u7247\u6bb5\u3001\u751f\u6210 zk-SNARK \u96f6\u77e5\u8bc6\u8bc1\u660e\u5e76\u63d0\u4ea4\u94fe\u4e0a\u9a8c\u8bc1<\/p>\n\n\n\n<p>\u6838\u5fc3\u6d41\u7a0b\uff1a<br>\u65b9\u6848\u4e3b\u8981\u7531\u4e03\u4e2a\u9636\u6bb5\u7ec4\u6210\uff1a\u521d\u59cb\u5316\u9636\u6bb5\u3001\u5c01\u88c5\u9636\u6bb5\u3001\u52a0\u5bc6\u9636\u6bb5\u3001\u91cd\u65b0\u52a0\u5bc6\u9636\u6bb5\u3001\u5bc6\u94a5\u751f\u6210\u9636\u6bb5\u3001\u8eab\u4efd\u9a8c\u8bc1\u9636\u6bb5\u548c\u89e3\u5bc6\u9636\u6bb5\u3002<br><strong>\u521d\u59cb\u5316\u9636\u6bb5\uff1a<\/strong>DO\u8f93\u5165\u5b89\u5168\u53c2\u6570K\u548c\u5c5e\u6027\u96c6U\uff0c\u901a\u8fc7setup\u7b97\u6cd5\uff0c\u751f\u6210\u7cfb\u7edf\u516c\u94a5PK\u548c\u7cfb\u7edf\u4e3b\u5bc6\u94a5MSK\u3002<br><strong>\u5c01\u88c5\u9636\u6bb5\uff1a<\/strong>DO\u5c06\u521d\u59cb\u5316\u9636\u6bb5\u5f97\u5230PK\u548cMSK\u4f5c\u4e3a\u5c01\u88c5\u7b97\u6cd5KEMMSK\u7684\u8f93\u5165\uff0c\u5f97\u5230\u4e00\u4e2a\u5bf9\u79f0\u5bc6\u94a5\u7528\u4e8e\u52a0\u5bc6MSK\uff0c\u540c\u65f6\u5c01\u88c5\u4e86\u4e00\u4e2acapsule\u7528\u4e8e\u91cd\u52a0\u5bc6\u64cd\u4f5c\u7684\u5c01\u88c5\u4f53\u3002\u7b97\u6cd5\u6700\u540e\u5f97\u5230CTmsk\u548ccapsule\u3002<br><strong>\u52a0\u5bc6\u9636\u6bb5\uff1a<\/strong>DO\u5c06PK\u3001\u660e\u6587\u6570\u636em\u3001\u57fa\u4e8eLSSS\u7684\u8bbf\u95ee\u7b56\u7565A\u548c\u8eab\u4efd\u968f\u673a\u5bc6\u94a5\u03b4\u8f93\u5165\u52a0\u5bc6\u7b97\u6cd5\uff0c\u8f93\u51fa\u5bc6\u6587\u6570\u636eCT\uff0c\u540c\u65f6\u5c06CT\u5b58\u5165IPFS\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"958\" height=\"667\" src=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-66.png\" alt=\"\" class=\"wp-image-3491\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-66.png 958w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-66-300x209.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-66-768x535.png 768w\" sizes=\"auto, (max-width: 958px) 100vw, 958px\" \/><\/figure>\n\n\n\n<p><br><strong>\u91cd\u52a0\u5bc6\u9636\u6bb5\uff1a<\/strong>DO\u8f93\u5165\u5bc6\u94a5skA\u548c\u9884\u671f\u59d4\u6258pkB\u7684\u516c\u94a5\uff0c\u4ee5\u53ca\u7247\u6bb5\u603b\u6570\u7684\u53c2\u6570N\u548c\u9608\u503c\u7684\u53c2\u6570t\uff0c\u7136\u540e\u91cd\u65b0\u52a0\u5bc6\u5bc6\u94a5\u751f\u6210\u7b97\u6cd5ReKeyGen\u8ba1\u7b97\u91cd\u65b0\u52a0\u5bc6\u5bc6\u94a5\u7684N\u4e2a\u7247\u6bb5\uff0c\u6bcf\u4e2a\u7247\u6bb5\u90fd\u547d\u540d\u4e3akFrag\uff0c\u7136\u540e\u5c06\u5176\u53d1\u9001\u5230PREN\uff1b\u4ee3\u7406\u8282\u70b9\u8f93\u5165\u5bc6\u94a5\u5c01\u88c5\u4f53capsule\u548c\u91cd\u52a0\u5bc6\u5bc6\u94a5\u788e\u7247kFrag\u4f5c\u4e3aReEncrypt\u7b97\u6cd5\u8f93\u5165\uff0c\u5148\u68c0\u67e5capsule\u7684\u6709\u6548\u6027\uff0c\u518d\u5c01\u88c5\u4e3acFrag\uff0c\u4e0e\u6b64\u540c\u65f6\uff0cPREN\u8282\u70b9\u901a\u8fc7CreateNIZKP\u521b\u5efa\u4e00\u4e2aNIZK\u8bc1\u660e\u6765\u4fdd\u8bc1cFrag\u7684\u6b63\u786e\u6027<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"272\" src=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-67-1024x272.png\" alt=\"\" class=\"wp-image-3492\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-67-1024x272.png 1024w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-67-300x80.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-67-768x204.png 768w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-67.png 1209w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>\u5bc6\u94a5\u751f\u6210\u9636\u6bb5<\/strong>\uff1a\u4e3b\u8981\u5305\u62ec\u91cd\u52a0\u5bc6\u9a8c\u8bc1\u3001\u5bc6\u94a5\u89e3\u5c01\u3001\u7528\u6237\u79c1\u94a5\u751f\u6210\u548c\u4ea4\u4e92\u8ba1\u7b97\u3002<br>\u5bf9\u4e8ePREN\u53d1\u9001\u7684NIZKP\uff0c\u533a\u5757\u94fe\u4e0a\u5171\u8bc6\u8282\u70b9\u89e6\u53d1\u94fe\u4e0a\u9a8c\u8bc1\u5408\u7ea6\uff0c\u4f7f\u7528 zk-SNARK \u9a8c\u8bc1\u7535\u8def\uff0c\u8f93\u51fa\u9a8c\u8bc1\u7ed3\u679c\u3002<br>DU\u5229\u7528\u4ece\u591a\u4e2a PREN \u8282\u70b9\u83b7\u5f97\u7684\u91cd\u52a0\u5bc6\u7247\u6bb5cFrag_i\u548c DO\u7684\u516c\u94a5\u3001\u81ea\u5df1\u7684\u79c1\u94a5\uff0c\u4fdd\u8bc1\u6536\u96c6\u7684cFrag\u6570\u91cf\u5927\u4e8e\u9608\u503ct\uff0c\u6267\u884cReDecrypt\u7b97\u6cd5\uff0c\u5c06\u8fd9\u4e9b cFrag\u5408\u5e76\uff0c\u5f97\u5230 \u03b5K\uff1b\u518d\u4f7f\u7528 \u03b5K \u89e3\u5bc6 CTMSK\u5f97\u5230\u660e\u6587 MSK\u6216 \u22a5\u3002<br>DU\u4f7f\u7528\u968f\u673a\u6570t\uff0c\u901a\u8fc7\u4f7f\u7528\u975e\u5bf9\u79f0\u52a0\u5bc6\u5bf9\uff08e\uff0cd\uff09\u5f97\u5230Ei=encryption\uff08ei\uff0ct\uff09\uff0cEi\u548cDU\u5c5e\u6027\u5bf9\u5e94\u7684\u54c8\u5e0c\u503chxi\u53d1\u9001\u7ed9\u8ba1\u7b97\u8282\u70b9\uff0c\u533a\u5757\u8ba1\u7b97\u8282\u70b9\u63a5\u6536\u5c5e\u6027\u54c8\u5e0c hx \u548c\u52a0\u5bc6\u968f\u673a\u6570 E\uff0c\u6267\u884c\u5408\u7ea6 BC.CptKey() \u8ba1\u7b97\u5e76\u8fd4\u56de K\u2032_x\uff1bDU \u5c06\u4e4b\u524d\u5f97\u5230\u7684\u6240\u6709\u7ec4\u4ef6\u7ec4\u5408\u4e3a\u5b8c\u6574\u79c1\u94a5\u56db\u5143\u7ec4SK = (S, K, L, Kx)\u3002<br><strong>\u8eab\u4efd\u9a8c\u8bc1\u9636\u6bb5\uff1a<\/strong>\u5728DU\u5177\u5907\u5c5e\u6027\u5bc6\u94a5\u7684\u57fa\u7840\u4e0a\uff0c\u8fdb\u4e00\u6b65\u786e\u8ba4\u5176\u8eab\u4efd\u5408\u6cd5\u6027\uff0cDU\u53d1\u9001\u8eab\u4efd\u6807\u8bc6\u7b26\u03b8\u7ed9DO\uff0cDO\u786e\u8ba4\u540e\u53d1\u9001\u8eab\u4efd\u5bc6\u94a5\u03b4\u3002<strong><br>\u89e3\u5bc6\u9636\u6bb5\uff1a<\/strong>DU\u6839\u636e\u533a\u5757\u94fe\u4e0a\u516c\u5f00\u7684\u5bc6\u6587\u5b58\u50a8\u5730\u5740\uff0c\u4eceIPFS\u4e0b\u8f7d\u5bc6\u6587CT\u3002\u7136\u540e\uff0c\u4ed6\u4f7f\u7528\u8eab\u4efd\u5bc6\u94a5\u03b4\u548c\u79c1\u94a5SK\u901a\u8fc7\u6267\u884c\u89e3\u5bc6\u7b97\u6cd5decrypt\u6765\u89e3\u5bc6\u5bc6\u6587CT\uff0c\u4ece\u800c\u5f97\u5230\u660e\u6587\u6570\u636em<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"515\" src=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-68-1024x515.png\" alt=\"\" class=\"wp-image-3493\" srcset=\"https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-68-1024x515.png 1024w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-68-300x151.png 300w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-68-768x386.png 768w, https:\/\/www.15zhi.net\/blog\/wp-content\/uploads\/2025\/06\/image-68.png 1318w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" 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