{"id":226,"date":"2018-12-14T19:14:56","date_gmt":"2018-12-14T11:14:56","guid":{"rendered":"http:\/\/www.subingkang.com\/?p=226"},"modified":"2018-12-17T18:33:43","modified_gmt":"2018-12-17T10:33:43","slug":"crc32%e7%88%86%e7%a0%b4%e8%84%9a%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/subk.me\/?p=226","title":{"rendered":"crc32\u7206\u7834\u811a\u672c"},"content":{"rendered":"<pre>#--coding:utf-8---\n# Author: subk\n# Time  : 2018\/12\/12 22:06\n# Desc  : \n\n\"\"\"\n1. \u90fd\u7528\u7684\u5c0f\u5199\u5b57\u6bcd\n2. &amp; 0xffffffff\u662f\u4e3a\u4e86\u5f97\u5230\u6b63\u6570\n    \u5982 binascii.crc32(\u2018haha\u2019)\n\"\"\"\n\nimport itertools\nimport binascii\n\nalph = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789+\/='\n\ndef crc32_dec_2(crc32):  \n    x = itertools.product(alph, repeat=2)       #repeat \u786e\u5b9a\u751f\u6210\u7684\u7ec4\u5408\u91cc\u6709\u51e0\u4e2a\u5b57\u7b26\n    for i in x:\n        zuhe=''.join(i)\n        if str(hex(binascii.crc32(zuhe) &amp; 0xffffffff)[2:10]) == crc32.lower():\n            return zuhe\n\ndef crc32_dec_3(crc32):  \n    x = itertools.product(alph, repeat=3)       #repeat \u786e\u5b9a\u751f\u6210\u7684\u7ec4\u5408\u91cc\u6709\u51e0\u4e2a\u5b57\u7b26\n    for i in x:\n        zuhe=''.join(i)\n        if str(hex(binascii.crc32(zuhe) &amp; 0xffffffff)[2:10]) == crc32.lower():\n            return zuhe\n\ndef crc32_dec_5(crc32):  #\u9700\u8981\u7684\u65f6\u95f4\u53ef\u80fd\u6bd4\u8f83\u957f\n    x = itertools.product(alph, repeat=5)       #repeat \u786e\u5b9a\u751f\u6210\u7684\u7ec4\u5408\u91cc\u6709\u51e0\u4e2a\u5b57\u7b26\n    for i in x:\n        zuhe=''.join(i)\n        if str(hex(binascii.crc32(zuhe) &amp; 0xffffffff)[2:10]) == crc32.lower():\n            return zuhe\n\nprint crc32_dec_5('c46bbddc')   #\u9700\u8981\u7206\u7834\u7684crc32\u503c\n\n<\/pre>","protected":false},"excerpt":{"rendered":"<p>#&#8211;coding:utf-8&#8212; # Author: subk # Time : 2018\/12\/12 2 [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[25,23],"class_list":["post-226","post","type-post","status-publish","format-standard","hentry","category-security","tag-crc32","tag-python"],"_links":{"self":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/226","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=226"}],"version-history":[{"count":6,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/226\/revisions"}],"predecessor-version":[{"id":232,"href":"https:\/\/subk.me\/index.php?rest_route=\/wp\/v2\/posts\/226\/revisions\/232"}],"wp:attachment":[{"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=226"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=226"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subk.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=226"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}