{"id":2584,"date":"2024-08-14T00:10:00","date_gmt":"2024-08-13T16:10:00","guid":{"rendered":"https:\/\/systw.net\/note\/?p=2584"},"modified":"2025-08-24T14:04:00","modified_gmt":"2025-08-24T06:04:00","slug":"sc-reentrancy","status":"publish","type":"post","link":"https:\/\/systw.net\/note\/archives\/2584","title":{"rendered":"Reentrancy"},"content":{"rendered":"\n<p>\u91cd\u5165\u653b\u64ca\uff08Reentrancy Attack\uff09\u662f\u4e00\u7a2e\u667a\u80fd\u5408\u7d04\u4e2d\u7684\u6f0f\u6d1e\uff0c\u7576\u5408\u7d04\u5728\u66f4\u65b0\u81ea\u8eab\u72c0\u614b\uff08\u5982\u9918\u984d\uff09\u4e4b\u524d\uff0c\u5c0d\u5916\u90e8\u5408\u7d04\u9032\u884c\u8abf\u7528\u6642\uff0c\u653b\u64ca\u8005\u53ef\u80fd\u5229\u7528\u9019\u4e00\u9ede\u91cd\u8907\u8abf\u7528\u539f\u59cb\u51fd\u6578\uff0c\u5f9e\u800c\u57f7\u884c\u4e0d\u7576\u64cd\u4f5c\uff0c\u4f8b\u5982\u591a\u6b21\u63d0\u9818\u8cc7\u91d1\u3002\u9019\u7a2e\u653b\u64ca\u901a\u5e38\u767c\u751f\u5728\u5408\u7d04\u5411\u5916\u90e8\u5730\u5740\u767c\u9001\u4ee5\u592a\u5e63\uff08Ether\uff09\u6216\u8abf\u7528\u5916\u90e8\u5408\u7d04\u6642\uff0c\u653b\u64ca\u8005\u53ef\u901a\u904e\u60e1\u610f\u5408\u7d04\u91cd\u65b0\u9032\u5165\uff08re-enter\uff09\u539f\u59cb\u5408\u7d04\uff0c\u5229\u7528\u672a\u66f4\u65b0\u7684\u72c0\u614b\u9032\u884c\u60e1\u610f\u64cd\u4f5c\uff0c\u6700\u7d42\u53ef\u80fd\u8017\u76e1\u5408\u7d04\u4e2d\u7684\u6240\u6709\u8cc7\u91d1\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u7bc4\u4f8b\uff08\u5b58\u5728\u6f0f\u6d1e\u7684\u5408\u7d04\uff09<\/h4>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u6613\u53d7\u91cd\u5165\u653b\u64ca\u7684\u667a\u80fd\u5408\u7d04\u7bc4\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ncontract Solidity_Reentrancy {\n    mapping(address =&gt; uint) public balances;\n\n    function deposit() external payable {\n        balances&#91;msg.sender] += msg.value;\n    }\n\n    function withdraw() external {\n        uint amount = balances&#91;msg.sender];\n        require(amount &gt; 0, \"Insufficient balance\");\n\n        \/\/ Vulnerability: Ether is sent before updating the user's balance, allowing reentrancy.\n        (bool success, ) = msg.sender.call{value: amount}(\"\");\n        require(success, \"Transfer failed\");\n\n        \/\/ Update balance after sending Ether\n        balances&#91;msg.sender] = 0;\n    }\n}<\/code><\/pre>\n\n\n\n<p><strong>\u6f0f\u6d1e\u5206\u6790<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>withdraw<\/code> \u51fd\u6578<\/strong>\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5728\u767c\u9001\u4ee5\u592a\u5e63\uff08<code>msg.sender.call<\/code>\uff09\u5f8c\u624d\u5c07\u7528\u6236\u9918\u984d\u8a2d\u7f6e\u70ba 0\u3002<\/li>\n\n\n\n<li>\u5982\u679c <code>msg.sender<\/code> \u662f\u4e00\u500b\u60e1\u610f\u5408\u7d04\uff0c\u8a72\u5408\u7d04\u53ef\u4ee5\u5728\u63a5\u6536\u4ee5\u592a\u5e63\u6642\u7acb\u5373\u91cd\u65b0\u8abf\u7528 <code>withdraw<\/code> \u51fd\u6578\u3002<\/li>\n\n\n\n<li>\u56e0\u70ba\u9918\u984d\u5c1a\u672a\u66f4\u65b0\uff08\u4ecd\u70ba\u975e\u96f6\uff09\uff0c\u653b\u64ca\u8005\u53ef\u4ee5\u91cd\u8907\u63d0\u9818\u8cc7\u91d1\uff0c\u76f4\u5230\u8017\u76e1\u5408\u7d04\u7684\u4ee5\u592a\u5e63\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u554f\u984c<\/strong>\uff1a\u9019\u7a2e\u300c\u5148\u767c\u9001\u3001\u5f8c\u66f4\u65b0\u300d\u7684\u908f\u8f2f\u5141\u8a31\u653b\u64ca\u8005\u5728\u72c0\u614b\u66f4\u65b0\u524d\u591a\u6b21\u57f7\u884c\u63d0\u9818\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u60e1\u610f\u653b\u64ca\u5408\u7d04\u7bc4\u4f8b <\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>contract Attack {\n    Solidity_Reentrancy victim;\n\n    constructor(address _victim) {\n        victim = Solidity_Reentrancy(_victim);\n    }\n\n    receive() external payable {\n        victim.withdraw(); \n    }\n\n    function attack() external {\n        victim.deposit{value: 1 ether}(); \n        victim.withdraw(); \n    }\n}<\/code><\/pre>\n\n\n\n<p>\u60e1\u610f\u653b\u64ca\u5408\u7d04\u904b\u4f5c\u904e\u7a0b\uff1a<\/p>\n\n\n\n<p>\u5047\u8a2d <code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7e3d\u5171\u6709 <strong>10 ETH<\/strong> \u7684\u8cc7\u91d1\uff0c\u9019\u4e9b\u8cc7\u91d1\u4f86\u81ea\u591a\u500b\u7528\u6236 <\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u653b\u64ca\u7684\u7b2c\u4e00\u6b65\uff1a<code>attack()<\/code> \u51fd\u5f0f<\/strong>\n<ul class=\"wp-block-list\">\n<li><code>victim.deposit{value: 1 ether}();<\/code>\uff1a\u653b\u64ca\u8005\u5148\u5411\u6709\u6f0f\u6d1e\u7684 <code>victim<\/code> \u5408\u7d04\u5b58\u5165 1 Ether\u3002\u6b64\u6642\uff0c<code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u6703\u8a18\u9304\u653b\u64ca\u8005\u7684\u9918\u984d\u70ba 1 Ether\u3002<\/li>\n\n\n\n<li><code>victim.withdraw();<\/code>\uff1a\u63a5\u8457\uff0c\u653b\u64ca\u8005\u89f8\u767c\u7b2c\u4e00\u6b21\u63d0\u6b3e\u3002<\/li>\n\n\n\n<li>\u6f0f\u6d1e\u5408\u7d04\u7684\u5167\u90e8\u72c0\u614b\u5982\u4e0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong><code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7e3d\u8cc7\u91d1<\/strong>\uff1a10 ETH<\/li>\n\n\n\n<li><strong><code>Balances[attacker]<\/code><\/strong>\uff1a1 ETH (\u653b\u64ca\u8005\u7684\u9918\u984d)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u6f0f\u6d1e\u89f8\u767c\uff1a<code>victim.withdraw()<\/code> \u51fd\u5f0f\u7684\u57f7\u884c<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>\u6aa2\u67e5\u9918\u984d<\/strong>\uff1a\u6709\u6f0f\u6d1e\u7684 <code>withdraw<\/code> \u51fd\u5f0f\u6703\u6aa2\u67e5\u653b\u64ca\u8005\u7684\u9918\u984d\u662f\u5426\u8db3\u5920\uff08<code>require(userBalances[msg.sender] &gt;= amount)<\/code>\uff09\u3002\u6b64\u6642\uff0c\u9918\u984d\u662f 1 Ether\uff0c\u6aa2\u67e5\u901a\u904e\u3002<\/li>\n\n\n\n<li><strong>\u8f49\u5e33\uff08\u5916\u90e8\u547c\u53eb\uff09<\/strong>\uff1a\u63a5\u8457\uff0c<code>withdraw<\/code> \u51fd\u5f0f\u6703\u57f7\u884c <code>msg.sender.call{value: amount}(\"\")<\/code>\uff0c\u5c07 1 Ether \u8f49\u5e33\u7d66\u653b\u64ca\u8005\u3002<\/li>\n\n\n\n<li><strong>\u6f0f\u6d1e\u9ede<\/strong>\uff1a<strong>\u6b64\u6642\uff0c<code>victim<\/code> \u5b58\u5728\u6f0f\u6d1e\u7684\u5408\u7d04\u9084\u6c92\u6709\u5c07\u653b\u64ca\u8005\u7684\u9918\u984d\u6e05\u96f6\u6216\u6e1b\u5c11\uff01<\/strong><\/li>\n\n\n\n<li>\u6f0f\u6d1e\u5408\u7d04\u7684\u5167\u90e8\u72c0\u614b\u5982\u4e0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong><code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7e3d\u8cc7\u91d1<\/strong>\uff1a9 ETH<\/li>\n\n\n\n<li><strong><code>Balances[attacker]<\/code><\/strong>\uff1a1 ETH (\u653b\u64ca\u8005\u7684\u9918\u984d)\uff0c\u6f0f\u6d1e\u5408\u7d04\u9084\u6c92\u6709\u5c07\u653b\u64ca\u8005\u7684\u9918\u984d\u6e05\u96f6\u6216\u6e1b\u5c11\uff01<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u91cd\u5165\u9ede\uff1a<code>receive()<\/code> \u51fd\u5f0f<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u7576 <code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u5c07 1 Ether \u8f49\u7d66\u653b\u64ca\u5408\u7d04\u6642\uff0c\u653b\u64ca\u5408\u7d04\u7684 <code>receive()<\/code> \u51fd\u5f0f\u6703<strong>\u81ea\u52d5\u88ab\u89f8\u767c\u57f7\u884c<\/strong>\u3002<\/li>\n\n\n\n<li><code>receive()<\/code> \u51fd\u5f0f\u5167\u90e8\u6709\u4e00\u884c\u95dc\u9375\u7a0b\u5f0f\u78bc\uff1a<code>victim.withdraw();<\/code>\u3002<\/li>\n\n\n\n<li>\u9019\u884c\u7a0b\u5f0f\u78bc\u6703\u8b93\u653b\u64ca\u5408\u7d04<strong>\u518d\u6b21\u547c\u53eb<\/strong> <code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7684 <code>withdraw<\/code> \u51fd\u5f0f\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u5faa\u74b0\u653b\u64ca<\/strong>\n<ul class=\"wp-block-list\">\n<li>\u7576\u7b2c\u4e8c\u6b21\u9032\u5165 <code>victim.withdraw()<\/code> \u6642\uff0c\u56e0\u70ba\u5b58\u5728\u6f0f\u6d1e\u5408\u7d04\u7684\u72c0\u614b\u9084\u6c92\u6709\u88ab\u66f4\u65b0\uff0c\u5b83<strong>\u4f9d\u7136\u8a8d\u70ba\u653b\u64ca\u8005\u7684\u9918\u984d\u662f 1 Ether<\/strong>\u3002<\/li>\n\n\n\n<li>\u6aa2\u67e5\u9918\u984d\u901a\u904e\uff0c<code>victim<\/code> \u5b58\u5728\u6f0f\u6d1e\u5408\u7d04\u518d\u6b21\u5411\u653b\u64ca\u5408\u7d04\u8f49\u5e33 1 Ether\u3002\n<ul class=\"wp-block-list\">\n<li>\u6f0f\u6d1e\u5408\u7d04\u7684\u5167\u90e8\u72c0\u614b\u5982\u4e0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong><code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7e3d\u8cc7\u91d1<\/strong>\uff1a8 ETH<\/li>\n\n\n\n<li><strong><code>Balances[attacker]<\/code><\/strong>\uff1a1 ETH (\u653b\u64ca\u8005\u7684\u9918\u984d)\uff0c\u6f0f\u6d1e\u5408\u7d04\u9084\u6c92\u6709\u5c07\u653b\u64ca\u8005\u7684\u9918\u984d\u6e05\u96f6\u6216\u6e1b\u5c11 <\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u653b\u64ca\u5408\u7d04\u7684 <code>receive()<\/code> \u51fd\u5f0f\u518d\u6b21\u88ab\u89f8\u767c\uff0c\u518d\u6b21\u547c\u53eb <code>withdraw<\/code>\u3002<\/li>\n\n\n\n<li>\u9019\u500b\u904e\u7a0b\u6703\u4e00\u76f4\u91cd\u8907\uff0c\u76f4\u5230 <code>victim<\/code> \u5b58\u5728\u6f0f\u6d1e\u5408\u7d04\u5167\u7684 Ether \u88ab\u8017\u76e1\u3002\n<ul class=\"wp-block-list\">\n<li>\u6f0f\u6d1e\u5408\u7d04\u7684\u5167\u90e8\u72c0\u614b\u5982\u4e0b\uff1a\n<ul class=\"wp-block-list\">\n<li><strong><code>victim<\/code> \u6f0f\u6d1e\u5408\u7d04\u7e3d\u8cc7\u91d1<\/strong>\uff1a0 ETH<\/li>\n\n\n\n<li><strong><code>Balances[attacker]<\/code><\/strong>\uff1a1 ETH (\u653b\u64ca\u8005\u7684\u9918\u984d)\uff0c\u6f0f\u6d1e\u5408\u7d04\u9084\u6c92\u6709\u5c07\u653b\u64ca\u8005\u7684\u9918\u984d\u6e05\u96f6\u6216\u6e1b\u5c11<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u5f71\u97ff<\/h4>\n\n\n\n<p>\u91cd\u5165\u653b\u64ca\u53ef\u80fd\u5c0e\u81f4\u4ee5\u4e0b\u56b4\u91cd\u5f8c\u679c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u8cc7\u91d1\u8017\u76e1<\/strong>\uff1a\u653b\u64ca\u8005\u53ef\u901a\u904e\u91cd\u8907\u63d0\u9818\u8017\u76e1\u5408\u7d04\u4e2d\u7684\u6240\u6709\u8cc7\u91d1\u3002<\/li>\n\n\n\n<li><strong>\u672a\u6388\u6b0a\u64cd\u4f5c<\/strong>\uff1a\u653b\u64ca\u8005\u53ef\u80fd\u89f8\u767c\u672a\u7d93\u6388\u6b0a\u7684\u529f\u80fd\u8abf\u7528\uff0c\u5c0e\u81f4\u5408\u7d04\u57f7\u884c\u975e\u9810\u671f\u7684\u884c\u70ba\u3002<\/li>\n\n\n\n<li><strong>\u7cfb\u7d71\u7834\u58de<\/strong>\uff1a\u653b\u64ca\u53ef\u80fd\u5f71\u97ff\u8207\u5408\u7d04\u76f8\u95dc\u7684\u7cfb\u7d71\uff0c\u9020\u6210\u66f4\u5ee3\u6cdb\u7684\u640d\u5bb3\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">\u4fee\u5fa9\u65b9\u6cd5<\/h4>\n\n\n\n<p>\u70ba\u9632\u6b62\u91cd\u5165\u653b\u64ca\uff0c\u958b\u767c\u8005\u61c9\u63a1\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u72c0\u614b\u512a\u5148\u66f4\u65b0<\/strong>\uff1a\u5728\u8abf\u7528\u5916\u90e8\u5408\u7d04\u6216\u767c\u9001\u4ee5\u592a\u5e63\u4e4b\u524d\uff0c\u5b8c\u6210\u6240\u6709\u5167\u90e8\u72c0\u614b\u7684\u66f4\u65b0\uff08\u4f8b\u5982\uff0c\u5c07\u9918\u984d\u8a2d\u70ba 0\uff09\u3002<\/li>\n\n\n\n<li><strong>\u4f7f\u7528\u9632\u91cd\u5165\u4fdd\u8b77<\/strong>\uff1a\u63a1\u7528\u51fd\u6578\u4fee\u98fe\u7b26\uff08\u5982 OpenZeppelin \u7684 <code>ReentrancyGuard<\/code>\uff09\u4f86\u9632\u6b62\u91cd\u5165\u653b\u64ca\uff0c\u78ba\u4fdd\u51fd\u6578\u5728\u57f7\u884c\u671f\u9593\u4e0d\u6703\u88ab\u91cd\u8907\u8abf\u7528\u3002<\/li>\n\n\n\n<li><strong>\u8b39\u614e\u4f7f\u7528\u5916\u90e8\u8abf\u7528<\/strong>\uff1a\u76e1\u91cf\u6e1b\u5c11\u5c0d\u5916\u90e8\u5408\u7d04\u7684\u8abf\u7528\uff0c\u4e26\u78ba\u4fdd\u8abf\u7528\u5b89\u5168\u3002<\/li>\n<\/ol>\n\n\n\n<h4 class=\"wp-block-heading\">\u4fee\u5fa9\u5f8c\u7684\u7bc4\u4f8b\u5408\u7d04<\/h4>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u4fee\u5fa9\u4e86\u91cd\u5165\u6f0f\u6d1e\u7684\u5408\u7d04\u7bc4\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ SPDX-License-Identifier: MIT\npragma solidity ^0.8.0;\n\ncontract Solidity_Reentrancy {\n    mapping(address =&gt; uint) public balances;\n\n    function deposit() external payable {\n        balances&#91;msg.sender] += msg.value;\n    }\n\n    function withdraw() external {\n        uint amount = balances&#91;msg.sender];\n        require(amount &gt; 0, \"Insufficient balance\");\n\n<mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-red-color\">        \/\/ Fix: Update the user's balance before sending Ether\n        balances&#91;msg.sender] = 0;\n\n        \/\/ Then send Ether\n        (bool success, ) = msg.sender.call{value: amount}(\"\");\n        require(success, \"Transfer failed\");<\/mark>\n    }\n}<\/code><\/pre>\n\n\n\n<p><strong>\u4fee\u5fa9\u5167\u5bb9<\/strong>\uff1a<\/p>\n\n\n\n<p>1.<strong>\u72c0\u614b\u66f4\u65b0\u512a\u5148<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728 <code>withdraw<\/code> \u51fd\u6578\u4e2d\uff0c\u5148\u5c07\u7528\u6236\u9918\u984d (<code>balances[msg.sender]<\/code>) \u8a2d\u70ba 0\uff0c\u7136\u5f8c\u624d\u767c\u9001\u4ee5\u592a\u5e63\u3002<\/li>\n\n\n\n<li>\u9019\u78ba\u4fdd\u5373\u4f7f\u653b\u64ca\u8005\u91cd\u65b0\u8abf\u7528 <code>withdraw<\/code>\uff0c\u9918\u984d\u5df2\u7d93\u70ba 0\uff0c\u7121\u6cd5\u518d\u6b21\u63d0\u9818\u3002<\/li>\n<\/ul>\n\n\n\n<p>2.<strong>\u5b89\u5168\u6027\u63d0\u5347<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u9019\u7a2e\u300c\u5148\u66f4\u65b0\u3001\u5f8c\u767c\u9001\u300d\u7684\u9806\u5e8f\u675c\u7d55\u4e86\u91cd\u5165\u653b\u64ca\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u7e3d\u7d50<\/h4>\n\n\n\n<p>\u91cd\u5165\u653b\u64ca\u662f\u667a\u80fd\u5408\u7d04\u4e2d\u6700\u5371\u96aa\u7684\u6f0f\u6d1e\u4e4b\u4e00\uff0c\u53ef\u80fd\u5c0e\u81f4\u8cc7\u91d1\u88ab\u8017\u76e1\u6216\u5408\u7d04\u529f\u80fd\u88ab\u6feb\u7528\u3002\u901a\u904e\u5728\u5916\u90e8\u8abf\u7528\u524d\u66f4\u65b0\u72c0\u614b\u3001\u63a1\u7528\u9632\u91cd\u5165\u4fdd\u8b77\u6a5f\u5236\uff08\u5982 <code>ReentrancyGuard<\/code>\uff09\u4ee5\u53ca\u8b39\u614e\u8a2d\u8a08\u5916\u90e8\u8abf\u7528\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u9632\u6b62\u91cd\u5165\u653b\u64ca\u3002\u4fee\u5fa9\u5f8c\u7684\u5408\u7d04\u5c55\u793a\u4e86\u5982\u4f55\u901a\u904e\u8abf\u6574\u72c0\u614b\u66f4\u65b0\u9806\u5e8f\u4f86\u78ba\u4fdd\u5b89\u5168\u6027\uff0c\u4fdd\u8b77\u5408\u7d04\u548c\u7528\u6236\u7684\u8cc7\u91d1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u91cd\u5165\u653b\u64ca\uff08Reentrancy Attack\uff09\u662f\u4e00\u7a2e\u667a\u80fd\u5408\u7d04 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"","fifu_image_alt":"","_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"enabled":false},"version":2}},"categories":[371],"tags":[],"class_list":["post-2584","post","type-post","status-publish","format-standard","hentry","category-web3-security"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts\/2584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/comments?post=2584"}],"version-history":[{"count":3,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts\/2584\/revisions"}],"predecessor-version":[{"id":2725,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/posts\/2584\/revisions\/2725"}],"wp:attachment":[{"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/media?parent=2584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/categories?post=2584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/systw.net\/note\/wp-json\/wp\/v2\/tags?post=2584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}