{"id":484,"date":"2018-08-14T03:50:31","date_gmt":"2018-08-13T19:50:31","guid":{"rendered":"https:\/\/mnihyc.tk\/blog\/?p=484"},"modified":"2019-01-06T11:34:52","modified_gmt":"2019-01-06T03:34:52","slug":"php-md5-%e5%a4%a7%e5%9d%91","status":"publish","type":"post","link":"https:\/\/mnihyc.com\/blog\/archives\/484","title":{"rendered":"PHP md5() \u5927\u5751"},"content":{"rendered":"

\u770b\u5230\u6709\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u6d4b\u8bd5\uff0c\u4ee3\u7801\u5927\u6982\u662f\u4e0b\u9762\u7684\u611f\u89c9\uff1a<\/p>\n

global $flag;\r\nif(isset($_GET['pass']))\r\n    if($_GET['pass']!='240610708' && md5($_GET['pass'])==md5('240610708'))\r\n\t    echo $flag;\r\n    else\r\n        echo 'Wrong';\r\nelse\r\n    echo 'Nothing';\r\n<\/pre>\n
\u5982\u4f55\u5f97\u5230 $flag \u7684\u503c\uff1f\uff1f\uff1f<\/p>\n
<\/p>\n
 <\/p>\n
\n
 <\/p>\n
 <\/p>\n
\u8fd9\u4e2a\u4e1c\u897f\u662f\u6211\u5728\u641c MD5 \u78b0\u649e\u7684\u65f6\u5019\u641c\u51fa\u6765\u7684\uff0c\u4f46\u5b9e\u9645\u4e0a\u8fd9\u4e2a\u4e1c\u897f\u548c MD5 \u78b0\u649e\u6bdb\u5b50\u5173\u7cfb\u90fd\u6ca1\u6709\uff0c\u8fd9\u4e2a\u7eaf\u7cb9\u662fPHP\u7684\u6bdb\u75c5\u3002<\/p>\n
\u505a\u4e2a\u6d4b\u8bd5\u5c31\u597d\u3002\u4e0a\u9762\u4ee3\u7801\u7684DEMO\u653e\u5728\u8fd9\u91cc<\/span><\/a><\/p>\n
\u770b\u8d77\u6765\u4f3c\u4e4e\u9664\u4e86 MD5 \u78b0\u649e\u6ca1\u6709\u5176\u5b83\u529e\u6cd5\uff0c\u4f46\u662f\uff0c\u5982\u679c\u6211\u4eec\u63d0\u4ea4?pass=QNKCDZO<\/code>\uff0c\u6211\u4eec\u5c31\u4f1a\u60ca\u5947\u7684\u53d1\u73b0\u5c45\u7136\u901a\u8fc7\u9a8c\u8bc1\u4e86\uff01\uff01\uff01\uff08\u53ef\u4ee5\u53bb\u81ea\u5df1\u8bd5\u8bd5\uff0cDEMO\u5728\u4e0a\u9762<\/p>\n
\u5f88\u663e\u7136\uff0c<\/p>\n
md5( ‘QNKCDZO’ ) = 0e830400451993494058024219903391<\/p>\n
md5( ‘240610708’ ) = 0e462097431906509019562988736854<\/p>\n
\u8fd9\u4e24\u9664\u4e86\u5f00\u5934\u662f 0e \u540e\u9762\u57fa\u672c\u4e0a\u90fd\u4e0d\u4e00\u6837\uff0cPHP\u600e\u4e48\u4f1a\u5224\u65ad\u5b83\u4eec\u76f8\u7b49\uff1f\uff1f\uff1f<\/p>\n
\u627e\u5230\u5b98\u65b9\u6587\u6863\uff0c\u4e00\u5207\u6c34\u843d\u77f3\u51fa<\/p>\n
http:\/\/php.net\/manual\/zh\/language.operators.comparison.php<\/a><\/p>\n
\u56e0\u4e3aPHP\u662f\u5f31\u8bed\u8a00\uff0c\u4f1a\u81ea\u52a8\u628a xe \u5f00\u5934\u7684\u5b57\u7b26\u4e32\u5f53\u79d1\u5b66\u8ba1\u6570\u6cd5\u8f6c\u6210\u6570\u5b57\u518d\u8fdb\u884c\u6bd4\u8f83\uff0c\u90a3\u81ea\u7136 0e \u540e\u9762\u4e0d\u7ba1\u8ddf\u4ec0\u4e48\u4e1c\u897f\u8f6c\u6210\u6570\u5b57\u90fd\u662f0\uff0c\u81ea\u7136\u5224\u65ad\u662f\u4f1a\u76f8\u7b49\u3002<\/p>\n
\u4fee\u590d\u65b9\u6cd5\uff1a \u6362\u7528 === \uff08\u5f3a\u5236\u5224\u65ad\u7c7b\u578b\u76f8\u7b49<\/p>\n
\u8fd9\u4e9b\u7ed3\u679c\u90fd\u662f (bool)true<\/p>\n
[code lang=”php”]
\nvar_dump(md5(‘240610708’) == md5(‘QNKCDZO’));
\nvar_dump(md5(‘aabg7XSs’) == md5(‘aabC9RqS’));
\nvar_dump(sha1(‘aaroZmOk’) == sha1(‘aaK1STfY’));
\nvar_dump(sha1(‘aaO8zKZF’) == sha1(‘aa3OFF9m’));
\nvar_dump(‘0010e2’ == ‘1e3’);
\nvar_dump(‘0x1234Ab’ == ‘1193131’);
\nvar_dump(‘0xABCdef’ == ‘ 0xABCdef’);
\n[\/code]<\/p>\n
\u8fd9\u4e9b\u90fd\u7531 0e \u5f00\u5934
\ns878926199a
\ns155964671a
\ns214587387a
\ns214587387a
\nsha1(‘aaroZmOk’)
\nsha1(‘aaK1STfY’)
\nsha1(‘aaO8zKZF’)
\nsha1(‘aa3OFF9m’)<\/p>\n","protected":false},"excerpt":{"rendered":"
\u770b\u5230\u6709\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u6d4b\u8bd5\uff0c\u4ee3\u7801\u5927\u6982\u662f\u4e0b\u9762\u7684\u611f\u89c9\uff1a global $flag; if(isset($_GET[‘ … \u7ee7\u7eed\u9605\u8bfbPHP md5() \u5927\u5751<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,7],"tags":[],"class_list":["post-484","post","type-post","status-publish","format-standard","hentry","category-other","category-security"],"yoast_head":"\nPHP md5() \u5927\u5751 - mnihyc's Blog<\/title>\n<meta name=\"description\" content=\"\u770b\u5230\u6709\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u6d4b\u8bd5\uff0c\u4ee3\u7801\u5927\u6982\u662f\u4e0b\u9762\u7684\u611f\u89c9\uff1a global $flag; if(isset($_GET)) if($_GET!='240610708' && md5($_GET)==md5('240610708')) echo $flag; else echo 'Wrong'; else\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/0self.mnihyc.com\/blog\/archives\/484\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP md5() \u5927\u5751 - mnihyc's Blog\" \/>\n<meta property=\"og:description\" content=\"\u770b\u5230\u6709\u4e00\u4e2a\u5f88\u6709\u610f\u601d\u7684\u6d4b\u8bd5\uff0c\u4ee3\u7801\u5927\u6982\u662f\u4e0b\u9762\u7684\u611f\u89c9\uff1a global $flag; 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