{"id":1919,"date":"2024-03-18T02:32:51","date_gmt":"2024-03-17T18:32:51","guid":{"rendered":"http:\/\/www.ccwifi.cc\/blogs\/?p=1919"},"modified":"2024-03-18T02:32:51","modified_gmt":"2024-03-17T18:32:51","slug":"mysql%e4%bf%9d%e5%ad%98md5%e7%9a%84%e5%af%86%e7%a0%811569","status":"publish","type":"post","link":"https:\/\/www.ccwifi.cc\/blogs\/2024\/03\/18\/mysql%e4%bf%9d%e5%ad%98md5%e7%9a%84%e5%af%86%e7%a0%811569\/","title":{"rendered":"MySQL\u4fdd\u5b58MD5\u7684\u5bc6\u7801"},"content":{"rendered":"
\n

\u5728\u7ebfwifi\u8dd1\u5305 \u91d1\u521a\u5305\u8dd1\u5305 cap\u8dd1\u5305 hccapx ewsa\u5728\u7ebf \u5c31\u6765 \u63e1\u624b\u5305\u8dd1\u5305<\/a><\/strong><\/p>\n

\u5404\u4f4d\u597d \u53c8\u89c1\u9762\u4e86 \u6211\u662f\u66f9\u64cd \u4eca\u5929\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\u65b0\u7684\u6559\u7a0b<\/p>\n

\u5e0c\u671b\u5404\u4f4d\u7ec6\u5fc3\u5b66\u4e60 \u4f4e\u8c03\u7528\u7f51<\/p>\n<\/div>\n

CREATE<\/span> TABLE<\/span> `<\/span>user<\/span>`<\/span>(<\/span>\n    `<\/span>id<\/span>`<\/span> INT<\/span> UNSIGNED<\/span> NOT<\/span> NULL<\/span> AUTO_INCREMENT<\/span> COMMENT<\/span> '\u4e3b\u952e'<\/span>,<\/span>\n    `<\/span>account<\/span>`<\/span> VARCHAR<\/span>(<\/span>128<\/span>)<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> ''<\/span> COMMENT<\/span> '\u8d26\u53f7'<\/span>,<\/span>\n    `<\/span>password_hash<\/span>`<\/span> VARCHAR<\/span>(<\/span>1024<\/span>)<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> ''<\/span> COMMENT<\/span> '\u5bc6\u7801\u6563\u5217\u503c'<\/span>,<\/span>\n    `<\/span>salt<\/span>`<\/span> VARCHAR<\/span>(<\/span>128<\/span>)<\/span> NOT<\/span> NULL<\/span> DEFAULT<\/span> ''<\/span> COMMENT<\/span> '\u76d0'<\/span>,<\/span>\n    PRIMARY<\/span> KEY<\/span>(<\/span>`<\/span>id<\/span>`<\/span>),<\/span>\n)<\/span>ENGINE<\/span>=<\/span>InnoDB<\/span> AUTO_INCREMENT<\/span>=<\/span>1<\/span> DEFAULT<\/span> CHARSET<\/span>=<\/span>utf8mb4<\/span> COMMENT<\/span>=<\/span>'\u7528\u6237\u8d26\u53f7\u8868'<\/span>;<\/span><\/code><\/pre>\n
\u5728\u5f00\u53d1\u767b\u5f55\u529f\u80fd\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5b58\u50a8\u7528\u6237\u7684\u5bc6\u7801\u3002\u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u7528\u6237\u7684\u5bc6\u7801\u4e0d\u4f1a\u4ee5\u660e\u6587\u5f62\u5f0f\u5b58\u50a8\uff0c\u800c\u662f\u7ecf\u8fc7\u6563\u5217\u6216\u52a0\u5bc6\u5904\u7406\u540e\u4fdd\u5b58\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5e38\u7528\u7684\u5bc6\u7801\u4fdd\u5b58\u7b97\u6cd5\u3002\u8003\u8651\u4ee5\u4e0b\u7684User\u8868\u3002<\/p>\n
$ md5 -s \"patrick\"\nMD5 (\"patrick\") = 6c84cbd30cf9350a990bad2bcc1bec5f\n$ md5 -s \"Patrick\"\nMD5 (\"Patrick\") = f87567f2159b425795ebb7ba9bc406ec<\/code><\/pre>\n
MD5\u6d88\u606f\u6458\u8981\u7b97\u6cd5\u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u5bc6\u7801\u6563\u5217\u51fd\u6570\uff0c\u5b83\u53ef\u4ee5\u751f\u6210\u4e00\u4e2a128\u4f4d\uff0816\u5b57\u8282\uff09\u7684\u6563\u5217\u503c\uff0c\u7528\u4e8e\u786e\u4fdd\u4fe1\u606f\u4f20\u8f93\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cMD5\u5e76\u4e0d\u662f\u4e00\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u800c\u662f\u4e00\u79cd\u4fe1\u606f\u538b\u7f29\u7b97\u6cd5\u3002\u5f53\u8f93\u5165\u503c\u7a0d\u6709\u53d8\u5316\u65f6\uff0c\u7ed3\u679c\u4e5f\u4f1a\u4ea7\u751f\u5f88\u5927\u7684\u5dee\u5f02\u3002\u8bf7\u770b\u4e0b\u9762\u7684\u4f8b\u5b50\u3002<\/p>\n
\"hashcat\u600e\u4e48\u4f7f\u7528\u9ed8\u8ba4\u5bc6\u7801\"<\/p>\n
MySQL [(none)]> SET @str='patirck';\nQuery OK, 0 rows affected (0.00 sec)\nMySQL [(none)]> SELECT MD5(@str),LENGTH(MD5(@str)) AS len_md5,LENGTH(UNHEX(MD5(@str))) as len_unhex;\n+----------------------------------+---------+-----------+\n| MD5(@str)                        | len_md5 | len_unhex |\n+----------------------------------+---------+-----------+\n| 91325f7a12f20fef31a48b5d691c279c |      32 |        16 |\n+----------------------------------+---------+-----------+\n1 row in set (0.01 sec)<\/code><\/pre>\n
mysql<\/span>><\/span> SELECT<\/span> UNHEX<\/span>(<\/span>'4D7953514C'<\/span>);<\/span>\n        -><\/span> 'MySQL'<\/span>\nmysql<\/span>><\/span> SELECT<\/span> X<\/span>'4D7953514C'<\/span>;<\/span>\n        -><\/span> 'MySQL'<\/span>\nmysql<\/span>><\/span> SELECT<\/span> UNHEX<\/span>(<\/span>HEX<\/span>(<\/span>'string'<\/span>));<\/span>\n        -><\/span> 'string'<\/span>\nmysql<\/span>><\/span> SELECT<\/span> HEX<\/span>(<\/span>UNHEX<\/span>(<\/span>'1267'<\/span>));<\/span>\n        -><\/span> '1267'<\/span><\/code><\/pre>\n
\u5728MySQL\u4e2d\u4fdd\u5b58MD5\u5bc6\u7801\u65f6\uff0c\u9664\u4e86\u53ef\u4ee5\u4f7f\u7528CHAR(32)\u6765\u5b58\u50a8\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528BINARY(16)\u6765\u5b58\u50a8\u3002\u793a\u4f8b\u8bf4\u660e\u5982\u4e0b\uff1a<\/p>\n
    \n
  1. \u5728MySQL\u4e2d\uff0cBINARY\u7c7b\u578b\u7528\u4e8e\u5b58\u50a8\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\uff08\u5b57\u8282\u5b57\u7b26\u4e32\uff09\uff0cMySQL\u4f1a\u4e3aBINARY\u7c7b\u578b\u7684\u53d8\u91cf\u6dfb\u52a0. <\/li>\n
  2. \u6839\u636eMySQL\u6587\u6863\uff0cUNHEX(str)\u51fd\u6570\u5c06\u5b57\u7b26\u4e32\u7684\u5b57\u7b26\u89e3\u6790\u4e3a\u5341\u516d\u8fdb\u5236\uff0c\u5e76\u8f6c\u6362\u4e3a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ol>\n
    mysql<\/span>><\/span> SELECT<\/span> UNHEX<\/span>(<\/span>'Patick'<\/span>);<\/span>\n+-----------------+<\/span>\n|<\/span> UNHEX<\/span>(<\/span>'Patick'<\/span>)<\/span> |<\/span>\n+-----------------+<\/span>\n|<\/span> NULL<\/span>            |<\/span>\n+-----------------+<\/span><\/code><\/pre>\n
    mysql<\/span>><\/span> SELECT<\/span> X<\/span>'616263'<\/span>,<\/span> HEX<\/span>(<\/span>'abc'<\/span>),<\/span> UNHEX<\/span>(<\/span>HEX<\/span>(<\/span>'abc'<\/span>));<\/span>\n        -><\/span> 'abc'<\/span>,<\/span> 616263<\/span>,<\/span> 'abc'<\/span>\nmysql<\/span>><\/span> SELECT<\/span> HEX<\/span>(<\/span>255<\/span>),<\/span> CONV<\/span>(<\/span>HEX<\/span>(<\/span>255<\/span>),<\/span>16<\/span>,<\/span>10<\/span>);<\/span>\n        -><\/span> 'FF'<\/span>,<\/span> 255<\/span><\/code><\/pre>\n
    \u5e76\u4e14\uff0c\u8f93\u5165\u7684\u5b57\u7b26\u5fc5\u987b\u662f\u5408\u6cd5\u7684\u5341\u516d\u8fdb\u5236\u6570\u5b57\uff08’0’\u2026’9’\uff0c’a’\u2026’f’\uff0c’A’\u2026’F’\uff09\u3002\u4e0eUNHEX\u76f8\u5bf9\u5e94\u7684\u51fd\u6570\u662fHEX\u3002\u6839\u636eMySQL\u6587\u6863\uff0cHEX(str)\u51fd\u6570\u8fd4\u56de\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u5341\u516d\u8fdb\u5236\u8868\u793a\uff0c\u5b57\u7b26\u4e32\u7684\u6bcf\u4e2a\u5b57\u7b26\u90fd\u88ab\u8f6c\u6362\u4e3a\u4e24\u4e2a\u5341\u516d\u8fdb\u5236\u6570\u5b57\u3002<\/p>\n
    \"hashcat\u600e\u4e48\u4f7f\u7528\u9ed8\u8ba4\u5bc6\u7801\"<\/p>\n
    aaaaaa -> 281DAF40 -> sgfnyd -> 920ECF10 -> kiebgt\n       H           R          H           R<\/code><\/pre>\n
    MD5 + salt\u662f\u4e00\u79cd\u57fa\u672c\u7684\u4fe1\u606f\u6458\u8981\u7b97\u6cd5\uff0c\u5b83\u5c06\u957f\u5ea6\u4e0d\u540c\u7684\u5bc6\u7801p\u6620\u5c04\u4e3a\u4e00\u4e2a128\u4f4d\u7684\u6563\u5217\u503chash(p)\u3002\u90a3\u4e48\uff0c\u662f\u5426\u53ef\u4ee5\u4ece\u6563\u5217\u503chash(p)\u53cd\u63a8\u51fa\u5bc6\u7801p\u5462\uff1f\u66b4\u529b\u653b\u51fb\u548c\u5f69\u8679\u8868\u653b\u51fb\u662f\u4e24\u79cd\u5e38\u89c1\u7684\u65b9\u6cd5\u3002<\/p>\n
    \u66b4\u529b\u653b\u51fb\u662f\u6307\u5bf9\u4e8e\u7ed9\u5b9a\u7684hash(p)\uff0c\u5c1d\u8bd5\u8ba1\u7b97\u51fa\u6ee1\u8db3q = hash(p)\u7684p\u3002\u4e00\u79cd\u65b9\u6cd5\u662f\u5bf9\u5bc6\u7801\u96c6\u5408\u4e2d\u7684\u6bcf\u4e2ap\u8ba1\u7b97hash(p)\uff0c\u76f4\u5230\u7ed3\u679c\u7b49\u4e8eq\uff1b\u53e6\u4e00\u79cd\u65b9\u6cd5\u662f\u4f7f\u7528\u67e5\u8868\u6cd5\uff0c\u5efa\u7acb\u4e00\u4e2a\u5305\u542b\u6bcf\u4e2ap\u548c\u5bf9\u5e94hash(p)\u7684\u5927\u578b\u6570\u636e\u5e93\uff0c\u5e76\u6839\u636eq\u8fdb\u884c\u7d22\u5f15\u3002\u8fd9\u4e24\u79cd\u65b9\u6cd5\u5728\u7406\u8bba\u4e0a\u90fd\u53ef\u884c\uff0c\u4f46\u524d\u4e00\u79cd\u65b9\u6cd5\u53ef\u80fd\u9700\u8981\u5927\u91cf\u65f6\u95f4\uff0c\u800c\u540e\u4e00\u79cd\u65b9\u6cd5\u9700\u8981\u5927\u91cf\u5b58\u50a8\u7a7a\u95f4\u3002\u56e0\u6b64\uff0c\u66b4\u529b\u653b\u51fb\u5e76\u4e0d\u53ef\u884c\u3002<\/p>\n
    \u5f69\u8679\u8868\u653b\u51fb\u662f\u4e00\u79cd\u901a\u8fc7\u9884\u5148\u8ba1\u7b97\u54c8\u5e0c\u94fe\u96c6\u6765\u964d\u4f4e\u5b58\u50a8\u7a7a\u95f4\u9700\u6c42\u7684\u65b9\u6cd5\u3002\u9884\u8ba1\u7b97\u7684\u54c8\u5e0c\u94fe\u96c6\u662f\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\u751f\u6210\u7684\uff1a<\/p>\n
    \"hashcat\u600e\u4e48\u4f7f\u7528\u9ed8\u8ba4\u5bc6\u7801\"<\/p>\n
    H\u51fd\u6570\u662f\u8981\u7834\u89e3\u7684\u54c8\u5e0c\u51fd\u6570\uff0c\u7ea6\u7b80\u51fd\u6570R\u662f\u5728\u6784\u5efa\u94fe\u65f6\u5b9a\u4e49\u7684\u51fd\u6570\uff0c\u5b83\u7684\u503c\u57df\u548c\u5b9a\u4e49\u57df\u4e0eH\u51fd\u6570\u76f8\u53cd\u3002\u901a\u8fc7\u7ea6\u7b80\u51fd\u6570\uff0c\u53ef\u4ee5\u5c06\u54c8\u5e0c\u503c\u7ea6\u7b80\u4e3a\u4e0e\u539f\u6587\u76f8\u540c\u683c\u5f0f\u7684\u503c\u3002\u53ea\u9700\u5b58\u50a8\u6bcf\u6761\u94fe\u7684\u8d77\u59cb\u8282\u70b9\u548c\u7ec8\u6b62\u8282\u70b9\uff0c\u800c\u4e0d\u9700\u8981\u5b58\u50a8\u6240\u6709\u8282\u70b9\uff0c\u5373\u53ef\u751f\u6210\u54c8\u5e0c\u94fe\u96c6\u3002<\/p>\n
    \u9884\u8ba1\u7b97\u7684\u54c8\u5e0c\u94fe\u96c6\u7684\u4f7f\u7528\uff1a\u7834\u89e3\u4e00\u4e2ahash\u503c\u65f6\uff0c\u5bf9\u4e8e\u957f\u5ea6\u4e3ak\u7684\u9884\u8ba1\u7b97\u54c8\u5e0c\u94fe\u96c6\uff0c\u6bcf\u6b21\u7834\u89e3\u8ba1\u7b97\u6b21\u6570\u4e0d\u8d85\u8fc7k\uff0c\u56e0\u6b64\u5927\u5927\u8282\u7ea6\u65f6\u95f4\u3002\u6bcf\u6761\u94fe\u53ea\u9700\u5b58\u50a8\u8d77\u59cb\u8282\u70b9\u548c\u7ec8\u6b62\u8282\u70b9\uff0c\u50a8\u5b58\u7a7a\u95f4\u53ea\u9700\u7ea61\/k\uff0c\u56e0\u6b64\u4e5f\u5927\u5927\u8282\u7ea6\u4e86\u7a7a\u95f4\u3002<\/p>\n
    \u4e3a\u4e86\u9632\u6b62\u5f69\u8679\u8868\u653b\u51fb\uff0c\u53ef\u4ee5\u4f7f\u7528\u52a0\u76d0\uff08salt\uff09\u7684\u65b9\u6cd5\u3002\u76d0\u662f\u5728\u6563\u5217\u4e4b\u524d\u5c06\u6563\u5217\u5185\u5bb9\uff08\u4f8b\u5982\u5bc6\u7801\uff09\u7684\u7279\u5b9a\u5b57\u7b26\u4e32\u63d2\u5165\u7684\u4e00\u79cd\u65b9\u5f0f\u3002\u8fd9\u79cd\u5904\u7406\u53ef\u4ee5\u589e\u52a0\u989d\u5916\u7684\u5b89\u5168\u6027\u3002\u4f8b\u5982\uff0c\u7528\u6237\u7684\u5bc6\u7801\u662fpasswd\uff0c\u76d0\u662fmy\uff0c\u7ec4\u5408\u540e\u7684\u503c\u662fmypasswd\uff0cMD5\u7684\u6563\u5217\u503c\u662f3102125cae72c19f215480ddf2d0d5c3\u3002\u8fd9\u6837\uff0c\u5373\u4f7fMD5\u7684\u6563\u5217\u503c\u88ab\u7834\u89e3\uff0c\u83b7\u5f97mypasswd\uff0c\u4e5f\u96be\u4ee5\u83b7\u5f97\u7528\u6237\u7684\u539f\u59cb\u5bc6\u7801\u3002\u751a\u81f3\u53ef\u4ee5\u8fdb\u884c\u4e24\u6b21MD5\u6563\u5217\u64cd\u4f5c\uff0c\u4ee5\u589e\u52a0\u5bc6\u7801\u7684\u5b89\u5168\u6027\u3002<\/p>\n
    SHA\uff08Secure Hash Algorithms\uff09\u662f\u4e00\u7ec4\u5bc6\u7801\u6563\u5217\u51fd\u6570\uff0c\u662fFIPS\u8ba4\u8bc1\u7684\u5b89\u5168\u6563\u5217\u7b97\u6cd5\u3002SHA\u53ef\u4ee5\u8ba1\u7b97\u51fa\u4e00\u4e2a\u6570\u5b57\u6d88\u606f\u5bf9\u5e94\u7684\u56fa\u5b9a\u957f\u5ea6\u5b57\u7b26\u4e32\uff08\u4e5f\u79f0\u4e3a\u6d88\u606f\u6458\u8981\uff09\uff0c\u4e14\u4e0d\u540c\u8f93\u5165\u7684\u6d88\u606f\u5bf9\u5e94\u4e0d\u540c\u7684\u5b57\u7b26\u4e32\u7684\u6982\u7387\u5f88\u9ad8\u3002SHA-1\u662fSHA\u7b97\u6cd5\u5bb6\u65cf\u4e2d\u6700\u5e38\u7528\u7684\u7b97\u6cd5\uff0c\u4f46\u57282010\u5e74\u540e\uff0c\u5176\u5b89\u5168\u6027\u5df2\u4e0d\u88ab\u5e7f\u6cdb\u63a5\u53d7\u3002SHA-2\u662fSHA\u7b97\u6cd5\u7684\u540e\u7ee7\u8005\uff0c\u5305\u62ecSHA-224\u3001SHA-256\u3001SHA-384\u3001SHA-512\u3001SHA-512\/224\u3001SHA-512\/256\u3002SHA-3\u662f\u4e00\u79cd\u4e0e\u4e4b\u524d\u7b97\u6cd5\u4e0d\u540c\u4e14\u53ef\u66ff\u4ee3\u7684\u52a0\u5bc6\u6563\u5217\u7b97\u6cd5\u3002<\/p>\n
    SHA1\u548cSHA2\u7684\u4e00\u4e2a\u4e3b\u8981\u533a\u522b\u662f\uff0cSHA1\u751f\u6210\u7684\u6563\u5217\u503c\u4e3a160\u4f4d\uff0c\u800cSHA2\u53ef\u4ee5\u751f\u6210\u4e0d\u540c\u957f\u5ea6\u7684\u6563\u5217\u503c\uff0c\u4f8b\u5982SHA-256\u751f\u6210256\u4f4d\u7684\u6563\u5217\u503c\u3002\u5728Linux\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528\u547d\u4ee4\u8ba1\u7b97\u5b57\u7b26\u4e32”patrick”\u7684SHA256\u503c\u3002<\/p>\n
    sudo cat \/etc\/shadow\npatrick:$6$C\/vGzhVe$aKKGdhzTmYyxp8.E68gCBkPhlWQ4W7\/OpCFQYV.qsCtKaV00bToWh286yzy73jedg6i0qSlZkZqQy.wmiUdje:18447:0:99999:7:::<\/code><\/pre>\n
    $id$salt$encrypted<\/code><\/pre>\n
    bcrypt(cpst,salt,pwd)\n  state <- EksBlowfishSetup(cost,salt,key)\n  ctext <- \"OrpheanBeholderScryDoubt\"\n  repeat(64)\n     ctext <- EncryptECB(sate,ctext)\n  return Concatenate(cost,salt,ctext)<\/code><\/pre>\n
    \u76ee\u524d\uff0cSHA1\u7b97\u6cd5\u5df2\u4e0d\u518d\u63a8\u8350\u4f7f\u7528\uff0c\u800cSHA2\u7b97\u6cd5\u88ab\u5e7f\u6cdb\u91c7\u7528\u3002<\/p>\n
    Linux\u7528\u6237\u767b\u5f55\u7684\u5bc6\u7801\u4fdd\u5b58\u5728\/etc\/shadow\u6587\u4ef6\u4e2d\uff0c\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n
    id\u8868\u793a\u52a0\u5bc6\u7b97\u6cd5\uff0c1\u4ee3\u8868MD5\uff0c5\u4ee3\u8868SHA-256\uff0c6\u4ee3\u8868SHA-512\u3002salt\u8868\u793a\u76d0\uff0c\u7531\u7cfb\u7edf\u968f\u673a\u751f\u6210\u3002encrypted\u8868\u793a\u5bc6\u7801\u7684\u6563\u5217\u503c\u3002<\/p>\n
    \u7136\u800c\uff0c\u65e0\u8bba\u662fMD5\u8fd8\u662fSHA\uff0c\u5b83\u4eec\u90fd\u4e0d\u662f\u8bbe\u8ba1\u7528\u4e8e\u5bc6\u94a5\u6d3e\u751f\u51fd\u6570\uff08KDF\uff09\u7684\u3002\u968f\u7740\u8ba1\u7b97\u80fd\u529b\u7684\u589e\u5f3a\uff0c\u5373\u4f7f\u662fSHA3\u6563\u5217\u51fd\u6570\uff0c\u88ab\u7834\u89e3\u7684\u65f6\u95f4\u4e5f\u5927\u5927\u7f29\u77ed\u3002<\/p>\n
    \u5bc6\u94a5\u6d3e\u751f\u51fd\u6570\uff08KDF\uff09\u662f\u4f7f\u7528\u4f2a\u968f\u673a\u51fd\u6570\u4ece\u4e3b\u5bc6\u94a5\u6216\u5bc6\u7801\u7b49\u79d8\u5bc6\u503c\u4e2d\u6d3e\u751f\u4e00\u4e2a\u6216\u591a\u4e2a\u5bc6\u94a5\u7684\u51fd\u6570\u3002KDF\u53ef\u7528\u4e8e\u6269\u5c55\u5bc6\u94a5\u957f\u5ea6\u6216\u83b7\u53d6\u6240\u9700\u683c\u5f0f\u7684\u5bc6\u94a5\u3002\u5bc6\u7801\u6563\u5217\u51fd\u6570\u662f\u6700\u5e38\u89c1\u7684\u5bc6\u94a5\u6d3e\u751f\u51fd\u6570\u793a\u4f8b\u3002\u5176\u4f7f\u7528\u53ef\u4ee5\u8868\u793a\u4e3aDK = KDF\uff08Key\uff0cSalt\uff0cIterations\uff09\uff0c\u5176\u4e2dDK\u662f\u6d3e\u751f\u5bc6\u94a5\uff0cKDF\u662f\u5bc6\u94a5\u6d3e\u751f\u51fd\u6570\uff0cKey\u662f\u539f\u59cb\u5bc6\u94a5\u6216\u5bc6\u7801\uff0cSalt\u662f\u4f5c\u4e3a\u5bc6\u7801\u76d0\u7684\u968f\u673a\u6570\uff0cIterations\u662f\u5b50\u51fd\u6570\u7684\u8fed\u4ee3\u6b21\u6570\u3002\u4f7f\u7528\u6d3e\u751f\u5bc6\u94a5\u66ff\u4ee3\u539f\u59cb\u5bc6\u94a5\u6216\u5bc6\u7801\u4f5c\u4e3a\u7cfb\u7edf\u7684\u5bc6\u94a5\u3002\u76d0\u7684\u503c\u548c\u8fed\u4ee3\u6b21\u6570\u4e0e\u6563\u5217\u5bc6\u7801\u4e00\u8d77\u5b58\u50a8\u6216\u4ee5\u52a0\u5bc6\u6d88\u606f\u7684\u660e\u6587\u5f62\u5f0f\u53d1\u9001\u3002<\/p>\n
    \u5728\u8fd9\u91cc\uff0c\u6211\u4eec\u4ecb\u7ecd\u4e86\u4e00\u79cd\u540d\u4e3abcrypt\u7684\u5bc6\u7801\u6563\u5217\u7b97\u6cd5\u3002bcrypt\u662f\u4e00\u79cd\u8fd0\u884c\u901f\u5ea6\u8f83\u6162\u7684\u7b97\u6cd5\uff0c\u8bbe\u8ba1\u7528\u4e8e\u5bc6\u7801\u6563\u5217\uff0c\u8fd9\u4f7f\u5f97\u751f\u6210\u5b57\u5178\u653b\u51fb\u6240\u9700\u7684\u65f6\u95f4\u66f4\u957f\u3002bcrypt\u7b97\u6cd5\u4e3b\u8981\u5206\u4e3a\u4e24\u4e2a\u6b65\u9aa4\uff1a<\/p>\n
      \n
    1. \u4f7f\u7528cost\u3001salt\u548cpassword\u521d\u59cb\u5316\u72b6\u6001eksblowfish\uff0c\u7136\u540ebcrypt\u4f7f\u7528\u5927\u91cf\u65f6\u95f4\u8fd0\u884c\u5bc6\u94a5\u6d3e\u751f\uff0c\u4ece\u4e3b\u5bc6\u94a5\u4e2d\u751f\u6210\u4e00\u7cfb\u5217\u5b50\u5bc6\u94a5\uff0c\u5176\u4e2d\u4e3b\u5bc6\u94a5\u662f\u8f93\u5165\u7684password\u3002<\/li>\n
    2. \u4f7f\u7528OrpheanBeholderScryDoubt\u5b57\u7b26\u4e32\u8fdb\u884c64\u6b21\u52a0\u5bc6\u3002<\/li>\n<\/ol>\n
      <\/p>\n","protected":false},"excerpt":{"rendered":"
      MySQL\u4fdd\u5b58MD5\u7684\u5bc6\u7801\u5f00\u53d1\u767b\u5f55\u529f\u80fd\u7684\u65f6\u5019\uff0c\u9700\u8981\u4fdd\u5b58\u7528\u6237\u7684\u5bc6\u7801\u3002\u7528\u6237\u7684\u5bc6\u7801\u4e00\u822c\u4e0d\u662f\u660e\u6587(plain text)\uff0c\u800c\u662f\u7ecf\u8fc7\u6563\u5217(hash)\u6216\u8005\u52a0\u5bc6(encrypt)\u4fdd\u5b58\u7684\u3002\u672c\u6587\u4ecb\u7ecd\u51e0\u4e2a\u5e38\u7528\u7684\u4fdd\u5b58\u5bc6\u7801\u7684\u7b97\u6cd5\u3002<\/p>\n","protected":false},"author":1,"featured_media":1920,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"topic":[],"class_list":["post-1919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/1919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/comments?post=1919"}],"version-history":[{"count":0,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/posts\/1919\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media\/1920"}],"wp:attachment":[{"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/media?parent=1919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/categories?post=1919"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/tags?post=1919"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.ccwifi.cc\/blogs\/wp-json\/wp\/v2\/topic?post=1919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}