{"id":1714,"date":"2017-11-29T11:06:31","date_gmt":"2017-11-29T02:06:31","guid":{"rendered":"https:\/\/column.prime-strategy.co.jp\/?p=1714"},"modified":"2022-12-15T07:36:41","modified_gmt":"2022-12-14T22:36:41","slug":"%e6%ac%a1%e3%81%aephp%e3%81%af%e3%81%a9%e3%81%86%e3%81%aa%e3%82%8b%ef%bc%9f-%e3%83%90%e3%83%bc%e3%82%b8%e3%83%a7%e3%83%b37-2%e3%81%a7%e3%81%93%e3%81%93%e3%81%8c%e5%a4%89%e3%82%8f%e3%82%8b","status":"publish","type":"post","link":"https:\/\/kusanagi.tokyo\/column\/archives\/column_1714","title":{"rendered":"PHP\u696d\u754c\u306e\u91cd\u93ae\u3000\u5ee3\u5ddd\u985e\u6c0f\u306e\u30b3\u30e9\u30e0\u7b2c\u4e09\u56de\u3000\u6b21\u306ePHP\u306f\u3069\u3046\u306a\u308b\uff1f \u30d0\u30fc\u30b8\u30e7\u30f37.2\u3067\u3053\u3053\u304c\u5909\u308f\u308b"},"content":{"rendered":"<h2><span class=\"ez-toc-section\" id=\"PHP_72%E3%81%AE%E6%96%B0%E6%A9%9F%E8%83%BD%EF%BC%9A_%E3%82%AF%E3%83%A9%E3%82%B9%E3%83%A1%E3%82%BD%E3%83%83%E3%83%89%E3%81%AE%E5%9E%8B%E5%AE%A3%E8%A8%80%E3%81%AE%E7%9C%81%E7%95%A5\"><\/span>PHP 7.2\u306e\u65b0\u6a5f\u80fd\uff1a \u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u578b\u5ba3\u8a00\u306e\u7701\u7565<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>11\u67089\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u5019\u88dc\u7248(Release Candidate, RC)\u3067\u3042\u308bPHP 7.2.0 RC6\u304c\u516c\u958b\u3055\u308c\u307e\u3057\u305f\u3002\u7279\u306b\u5927\u304d\u306a\u554f\u984c\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u9650\u308a\u3001\u3053\u306eRC6\u7248\u304c\u6700\u5f8c\u306eRC\u3068\u306a\u308a\u3001\u4e88\u5b9a\u901a\u308a11\u670830\u65e5\u306bPHP 7.2.0\u304c\u6b63\u5f0f\u516c\u958b\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3059\u3002\u4ee5\u4e0b\u3001\u524d\u53f7\u306b\u5f15\u304d\u7d9a\u304dPHP 7.2\u306e\u5909\u66f4\u70b9\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<p>PHP 7\u4ee5\u964d\u3001\u30b9\u30ab\u30e9\u30fc\u578b\u306e\u578b\u5ba3\u8a00(\u30bf\u30a4\u30d7\u30d2\u30f3\u30c6\u30a3\u30f3\u30b0)\u304c\u53ef\u80fd\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u65e2\u5b58\u306e\u5171\u901a\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u578b\u5ba3\u8a00\u3092\u884c\u3046\u3088\u3046\u306b\u66f4\u65b0\u3057\u305f\u5834\u5408\u3001\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7c21\u5358\u306a\u4f8b\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305a\u3001\u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ea(lib.php)\u306b\u30af\u30e9\u30b9Base\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002\u95a2\u6570boo\u306b\u578b\u5ba3\u8a00\u3092\u8ffd\u52a0\u3057\u305f\u3068\u60f3\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>&lt;?php \/\/ \u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ea<\/p>\n<p>class Base {<\/p>\n<p>public function boo(string $s) {}<\/p>\n<p>}<\/p>\n<p>\u5f93\u6765\u304b\u3089\u3053\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3063\u3066\u30af\u30e9\u30b9Foo\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u305f\u3068\u3057\u307e\u3059\u3002<\/p>\n<p>&lt;?php<\/p>\n<p>require_once 'lib.php';<\/p>\n<p>class Foo extends Base {<\/p>\n<p>public function boo($s) {}<\/p>\n<p>}<\/p>\n<p>\u3053\u306e\u30b9\u30af\u30ea\u30d7\u30c8foo.php\u30927.1\u307e\u3067\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306ePHP\u3067\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8b66\u544a\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n<p>Warning: Declaration of Foo::boo($s) should be compatible with Base::boo(string $s) in foo.php on line 3<\/p>\n<p>\u3053\u308c\u306f\u3001\u6d3e\u751f\u30af\u30e9\u30b9Foo\u306b\u304a\u3044\u3066\u57fa\u5e95\u30af\u30e9\u30b9Base\u306e\u30e1\u30bd\u30c3\u30c9boo\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u578b\u5ba3\u8a00\u304c\u7701\u7565\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3002PHP 7.2\u4ee5\u964d\u3067\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u578b\u5ba3\u8a00\u3092\u7701\u7565\u3057\u305f\u5834\u5408\u3067\u3082\u8b66\u544a\u304c\u767a\u751f\u3057\u306a\u3044\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u4e00\u822c\u306b\u5171\u6709\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u66f4\u65b0\u3057\u305f\u969b\u306b\u3001\u3053\u308c\u3092\u4f7f\u7528\u3059\u308b\u30b3\u30fc\u30c9\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u6d3e\u751f\u30af\u30e9\u30b9\u3092\u5168\u3066\u66f4\u65b0\u3059\u308b\u306e\u306f\u624b\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u4e0a\u8a18\u306e\u52d5\u4f5c\u3068\u306a\u3063\u305f\u3053\u3068\u3067\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u306e\u30af\u30e9\u30b9\u306b\u6bb5\u968e\u7684\u306b\u578b\u5ba3\u8a00\u3092\u8ffd\u52a0\u3057\u3001\u66f4\u65b0\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2><span class=\"ez-toc-section\" 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class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30a2\u30af\u30bb\u30b9\u8a8d\u8a3c\u7528\u306a\u3069\u306b\u4f7f\u7528\u3055\u308c\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u304c\u5fc5\u8981\u3068\u306a\u308b\u30b1\u30fc\u30b9\u304c\u5ea6\u3005\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u969b\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u305d\u306e\u307e\u307e\u4fdd\u5b58\u3057\u3066\u304a\u304f\u306e\u306f\u5371\u967a\u3067\u3059\u306e\u3067\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u4fdd\u5b58\u3057\u3066\u304a\u304d\u307e\u3059\u3002\u8a8d\u8a3c\u3092\u884c\u3046\u969b\u306b\u306f\u3001\u30e6\u30fc\u30b6\u306b\u5165\u529b\u3055\u308c\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u8a08\u7b97\u3057\u3066\u3001\u4fdd\u5b58\u3055\u308c\u305f\u30cf\u30c3\u30b7\u30e5\u5024\u3068\u7167\u5408\u3059\u308b\u3053\u3068\u3067\u8a8d\u8a3c\u306e\u53ef\u5426\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u904e\u53bb\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u8a08\u7b97\u3059\u308b\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u3068\u3057\u3066md5()\u3084sha1()\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u6628\u4eca\u306e\u6280\u8853\u306e\u9032\u6b69\u306b\u3088\u308a\u5bb9\u6613\u306b\u89e3\u8aad\u3055\u308c\u3066\u3057\u307e\u3046\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u653b\u6483\u3068\u547c\u3070\u308c\u308b\u653b\u6483\u306b\u3088\u308a\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u6587\u5b57\u5217\u3092\u7d5e\u308a\u8fbc\u307e\u308c\u308b\u30ea\u30b9\u30af\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>PHP 5.5\u4ee5\u964d\u3001PHP\u3067\u306f\u30d1\u30b9\u30ef\u30fc\u30c9\u7528\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u5b89\u5168\u306b\u751f\u6210\u3059\u308b\u95a2\u6570password_hash()\u95a2\u6570\u304c\u5b9a\u7fa9\u3055\u308c\u307e\u3057\u305f\u3002\u7167\u5408\u3092\u884c\u3046\u969b\u306b\u306f\u3001password_verify()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002password_hash()\u95a2\u6570\u3067\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u4fdd\u5b58\u306b\u9069\u3057\u305f\u6700\u65b0\u306e\u30cf\u30c3\u30b7\u30e5\u95a2\u6570\u304c\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u3068\u306a\u3063\u3066\u304a\u308a\u3001\u6280\u8853\u306e\u9032\u6b69\u306b\u3082\u9069\u7528\u3067\u304d\u307e\u3059\u3002PHP 7.1\u307e\u3067\u306f\u3001Bcrypt\uff08Blowfish\uff09\u304c\u30cf\u30c3\u30b7\u30e5\u5024\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001password_verify()\u95a2\u6570\u306f\u3001\u30bf\u30a4\u30df\u30f3\u30b0\u653b\u6483\u306b\u5bfe\u5fdc\u3057\u3001\u5b89\u5168\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u8a8d\u8a3c\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>PHP 7.2\u3067\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u5024\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066Password Hashing Competition 2015\u306e\u52dd\u8005\u3067\u3042\u308bArgon2\u304c\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u7528\u30cf\u30c3\u30b7\u30e5\u5024\u751f\u6210\u95a2\u6570\u3067\u306f\u3001\u30cf\u30c3\u30b7\u30e5\u751f\u6210\u306b\u304b\u304b\u308b\u8a08\u7b97\u30b3\u30b9\u30c8\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u7dcf\u5f53\u305f\u308a\u653b\u6483\u306e\u3088\u3046\u306a\u653b\u6483\u3092\u3084\u308a\u306b\u304f\u304f\u3059\u308b\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u8ca0\u8377\u3082\u4e0a\u304c\u308a\u307e\u3059\u304c\u3001\u4fdd\u8b77\u3059\u3079\u304d\u60c5\u5831\u306e\u91cd\u8981\u5ea6\u306b\u5fdc\u3058\u3066\u9069\u5207\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u76f8\u5bfe\u7684\u306b\u653b\u6483\u5074\u306e\u8ca0\u8377\u3092\u9ad8\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Bcrypt\u3067\u306f\u3001\u30b3\u30b9\u30c8\u3092\u6307\u5b9a\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u306f1\u7a2e\u985e\u306e\u307f\u3067\u3057\u305f\u304c\u3001Argon2\u3067\u306f\uff13\u7a2e\u985e\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3067\u304d\u3001\u3088\u308a\u67d4\u8edf\u306b\u30b3\u30b9\u30c8\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u793a\u3057\u307e\u3059\u3002Argon2\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u751f\u6210\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u7b2c\u4e8c\u5f15\u6570\u306bPHP\u5b9a\u6570PASSWORD_ARGON2I\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u5f15\u6570\u3068\u3057\u3066\u7b2c\u4e09\u5f15\u6570\u306b\u914d\u5217\u3067\u30b3\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30b3\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u3001\u30e1\u30e2\u30ea\u30b3\u30b9\u30c8\u3001\u6642\u9593\u30b3\u30b9\u30c8\u3001\u4e26\u5217\u5ea6\uff08\u30b9\u30ec\u30c3\u30c9\uff09\u306e3\u7a2e\u985e\u304c\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30e1\u30e2\u30ea\u30b3\u30b9\u30c8\u306b2^17\uff082\u306e17\u4e57\uff09\u3001\u6642\u9593\u30b3\u30b9\u30c8\u306b4\u3001\u4e26\u5217\u5ea6\u306b4\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5024\u306f\u3001\u4fdd\u8b77\u3059\u3079\u304d\u60c5\u5831\u306e\u91cd\u8981\u5ea6\u3068\u30b5\u30fc\u30d0\u8ca0\u8377\u3092\u8003\u616e\u3057\u3066\u3001\u9069\u5207\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&lt;?php<\/p>\n<p>$opt= ['memory_cost'=&gt;1&lt;&lt;17,'time_cost'=&gt;4,'threads'=&gt;2];<\/p>\n<p>$hash = password_hash(\u2018password\u2019,PASSWORD_ARGON2I,$opt);<\/p>\n<p>&nbsp;<\/p>\n<p>\u751f\u6210\u3055\u308c\u308b\u30cf\u30c3\u30b7\u30e5\u6587\u5b57\u5217\u306f\u3001\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u30cf\u30c3\u30b7\u30e5\u6587\u5b57\u5217\u81ea\u4f53\u306b\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3084\u30aa\u30d7\u30b7\u30e7\u30f3\u306a\u3069\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u57cb\u3081\u8fbc\u307e\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u8a8d\u8a3c\u3092\u884c\u3046\u969b\u306b\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5f15\u6570\u3092\u5fc5\u8981\u3068\u305b\u305a\u3001\u30cf\u30c3\u30b7\u30e5\u6587\u5b57\u5217\u306e\u307f\u3067\u8a8d\u8a3c\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.prime-strategy.co.jp\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1715\" src=\"https:\/\/www.prime-strategy.co.jp\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8.png\" alt=\"\" width=\"5823\" height=\"1057\" srcset=\"https:\/\/kusanagi.tokyo\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8.png 1280w, https:\/\/kusanagi.tokyo\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8-300x54.png 300w, https:\/\/kusanagi.tokyo\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8-1024x186.png 1024w, https:\/\/kusanagi.tokyo\/column\/wp-content\/uploads\/2017\/11\/93a49240873e1d539c62913f28b8b7f8-768x139.png 768w\" sizes=\"auto, (max-width: 5823px) 100vw, 5823px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"PHP_72%E3%81%AE%E6%96%B0%E6%A9%9F%E8%83%BD%EF%BC%9ASodium%E3%83%A9%E3%82%A4%E3%83%96%E3%83%A9%E3%83%AA%E3%81%AE%E6%A8%99%E6%BA%96%E5%8C%96\"><\/span>PHP 7.2\u306e\u65b0\u6a5f\u80fd\uff1aSodium\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u6a19\u6e96\u5316<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>PHP 7.2\u3067\u306f\u3001\u5f93\u6765\u6a19\u6e96\u30a8\u30af\u30b9\u30c6\u30f3\u30b7\u30e7\u30f3\u30ec\u30dd\u30b8\u30c8\u30eaPECL\u3067\u63d0\u4f9b\u3055\u308c\u3066\u3044\u305f\u6697\u53f7\u30e9\u30a4\u30d6\u30e9\u30eaLibsodium\u306e\u6a5f\u80fd\u304cPHP\u30b3\u30a2\u306b\u6a19\u6e96\u7684\u306b\u7d44\u307f\u8fbc\u307e\u308c\u307e\u3057\u305f\u3002Libsodium\u306f\u3001\u30af\u30ed\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3001\u8907\u6570\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u4f7f\u7528\u53ef\u80fd\u306a\u6697\u53f7\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3001\u6697\u53f7\uff0f\u5fa9\u53f7\u3001\u7f72\u540d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u7528\u30cf\u30c3\u30b7\u30e5\u751f\u6210\u306a\u3069\u306e\u6a5f\u80fd\u3092\u6709\u3057\u3066\u3044\u307e\u3059\u3002\u591a\u304f\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306f\u3001\u6a19\u6e96\u306e\u6697\u53f7\u95a2\u6570\u3068\u3057\u3066OpenSSL\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u8fd1\u5e74\u306e\u6697\u53f7\u6280\u8853\u306e\u9032\u6b69\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u5f37\u5ea6\u304c\u4f4e\u3044\u6697\u53f7\u306e\u8aa4\u3063\u305f\u4f7f\u3044\u65b9\u3092\u8a98\u767a\u3057\u3001\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483\u306a\u3069\u3092\u53d7\u3051\u3084\u3059\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002Libsodium\u306f\u6a19\u6e96\u7684\u306a\u8a2d\u5b9a\u3067\u5b89\u5168\u6027\u304c\u9ad8\u3044\u6697\u53f7API\u3092\u63d0\u4f9b\u3057\u3066\u304a\u308a\u3001\u30b5\u30a4\u30c9\u30c1\u30e3\u30cd\u30eb\u653b\u6483\u306b\u5bfe\u5fdc\u3057\u3001\u304b\u3064\u3001\u6700\u8fd1\u306eCPU\u306e\u547d\u4ee4\u306b\u5bfe\u5fdc\u3057\u3066\u9ad8\u901f\u306b\u52d5\u4f5c\u3059\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<p>\u6697\u53f7\u306b\u3088\u308b\u60c5\u5831\u4f1d\u9001\u306e\u4f8b\u3068\u3057\u3066\u3001\u8a8d\u8a3c\u4ed8\u304d\u6697\u53f7(AEAD)\u306e\u4ed5\u69d8\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002\u8a8d\u8a3c\u4ed8\u304d\u6697\u53f7\u306f\u3001\u30c7\u30fc\u30bf\u306e\u79d8\u533f\u6027\u306b\u52a0\u3048\u3066\u3001\u4f1d\u9001\u7d4c\u8def\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u6539\u3056\u3093\u7b49\u306e\u691c\u77e5\u306b\u5bfe\u5fdc\u3057\u3001\u5b8c\u5168\u6027\u30fb\u8a8d\u8a3c\u6027\u3092\u6709\u3059\u308b\u6697\u53f7\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u8a8d\u8a3c\u4ed8\u304d\u6697\u53f7\u306e\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3068\u3057\u3066\u3001\u9ad8\u901f\u304b\u3064\u5f37\u529b\u306a\u5bfe\u79f0\u6697\u53f7\u3067\u3042\u308bChaCha20-Poly1305\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u6697\u53f7\u5316\u65b9\u5f0f\u3068\u3057\u3066\u306eChaCha20-Poly1305\u306fRFC7539\u3067\u898f\u683c\u5316\u3055\u308c\u3001\u307e\u305f\u3001TLS\u306e\u6697\u53f7\u5316\u65b9\u5f0f\u3068\u3057\u3066RFC7905\u3067\u4ed5\u69d8\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u307e\u305a\u3001\u4ee5\u4e0b\u306e\u95a2\u6570\u3067\u3042\u3089\u304b\u3058\u3081\u5171\u901a\u9375\u306e\u751f\u6210\u3092\u884c\u3044\u3001\u9375\u4ea4\u63db\u7b49\u306b\u3088\u308a\u6697\u53f7\u6587\u3092\u9001\u4fe1\u3059\u308b\u5074\u3068\u53d7\u4fe1\u3059\u308b\u5074\u3067\u5171\u6709\u3057\u307e\u3059\u3002<\/p>\n<p>$key = sodium_crypto_aead_chacha20poly1305_keygen();<\/p>\n<p>&nbsp;<\/p>\n<p>\u6b21\u306b\u6697\u53f7\u5316\u306e\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u3002\u6697\u53f7\u5316\u5bfe\u8c61\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u6587$msg\u3068\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u4ed8\u52a0\u30c7\u30fc\u30bf\u3092\u7528\u610f\u3057\u307e\u3059\u3002\u4e71\u6570\u3068\u3057\u3066$nonce\u3092\u751f\u6210\u3057\u305f\u5f8c\u3001sodium_crypto_aead_chacha20poly1305_encrypt()\u95a2\u6570\u3067\u6697\u53f7\u5316\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>$msg = \"this is secret message.\"; \/\/ \u6697\u53f7\u5316\u5bfe\u8c61\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4f8b<\/p>\n<p>$ad = \"public message.\";\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ \u4ed8\u52a0\u30c7\u30fc\u30bf(\u30aa\u30d7\u30b7\u30e7\u30f3)<\/p>\n<p>$nonce = random_bytes(SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES);<\/p>\n<p>$ciphertext = sodium_crypto_aead_chacha20poly1305_encrypt($msg, $ad, $nonce, $key);<\/p>\n<p>\u5fa9\u53f7\u306f\u3001sodium_crypto_aead_chacha20poly1305_decrypt()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>echo sodium_crypto_aead_chacha20poly1305_decrypt($ciphertext, $ad, $nonce, $key);<\/p>\n<p>&nbsp;<\/p>\n<p>libsodium\u306b\u3088\u308b\u6697\u53f7\u5316\u6a5f\u80fd\u306e\u5f37\u5316\u306f\u3001PHP 7.2\u306e\u76ee\u7389\u3067\u3059\u3002\u672c\u30d0\u30fc\u30b8\u30e7\u30f3\u3067Libsodium\u3092\u30b3\u30a2\u306b\u7d44\u307f\u8fbc\u3080\u3053\u3068\u306b\u3088\u308a\u3001\u300cPHP\u306f\u8fd1\u4ee3\u7684\u306a\u6697\u53f7\u6a5f\u80fd\u3092\u6a19\u6e96\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u6700\u521d\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u306b\u306a\u308b\u300d\u3068\u8a00\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u6697\u53f7\u5316\u3068\u805e\u304f\u3068\u3068\u3063\u3064\u304d\u306b\u304f\u3044\u5370\u8c61\u3092\u53d7\u3051\u307e\u3059\u304c\u3001\u6697\u53f7\u5316API\u304c\u6a19\u6e96\u7684\u306b\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308b\u3053\u3068\u3067\u3001PHP\u306f\u3088\u308a\u4f7f\u3044\u3084\u3059\u304f\u5b9f\u7528\u7684\u306a\u8a00\u8a9e\u306b\u306a\u3063\u3066\u3044\u304f\u3068\u601d\u308f\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP 7.2\u306e\u65b0\u6a5f\u80fd\uff1a \u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u578b\u5ba3\u8a00\u306e\u7701\u7565 11\u67089\u65e5\u306b\u30ea\u30ea\u30fc\u30b9\u5019\u88dc\u7248(Release Candidate, RC)\u3067\u3042\u308bPHP ... <a title=\"PHP\u696d\u754c\u306e\u91cd\u93ae\u3000\u5ee3\u5ddd\u985e\u6c0f\u306e\u30b3\u30e9\u30e0\u7b2c\u4e09\u56de\u3000\u6b21\u306ePHP\u306f\u3069\u3046\u306a\u308b\uff1f \u30d0\u30fc\u30b8\u30e7\u30f37.2\u3067\u3053\u3053\u304c\u5909\u308f\u308b\" class=\"read-more\" href=\"https:\/\/kusanagi.tokyo\/column\/archives\/column_1714\" aria-label=\"PHP\u696d\u754c\u306e\u91cd\u93ae\u3000\u5ee3\u5ddd\u985e\u6c0f\u306e\u30b3\u30e9\u30e0\u7b2c\u4e09\u56de\u3000\u6b21\u306ePHP\u306f\u3069\u3046\u306a\u308b\uff1f \u30d0\u30fc\u30b8\u30e7\u30f37.2\u3067\u3053\u3053\u304c\u5909\u308f\u308b \u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8aad\u3080\">Read 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