{"id":39521,"date":"2025-06-03T07:10:09","date_gmt":"2025-06-03T07:10:09","guid":{"rendered":"https:\/\/www.railscarma.com\/?p=39521"},"modified":"2025-06-03T07:12:17","modified_gmt":"2025-06-03T07:12:17","slug":"ruby%e3%81%a7%e3%83%a9%e3%83%b3%e3%83%80%e3%83%a0%e3%81%aa%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b%e5%8c%85%e6%8b%ac%e7%9a%84%e3%81%aa%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/ruby%e3%81%a7%e3%83%a9%e3%83%b3%e3%83%80%e3%83%a0%e3%81%aa%e6%96%87%e5%ad%97%e5%88%97%e3%82%92%e7%94%9f%e6%88%90%e3%81%99%e3%82%8b%e5%8c%85%e6%8b%ac%e7%9a%84%e3%81%aa%e3%82%ac%e3%82%a4%e3%83%89\/","title":{"rendered":"Ruby\u3067\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u65b9\u6cd5\uff1a\u7dcf\u5408\u30ac\u30a4\u30c9"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"39521\" class=\"elementor elementor-39521\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-f92c5d3 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f92c5d3\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-476acb7\" data-id=\"476acb7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e07adec elementor-widget elementor-widget-text-editor\" data-id=\"e07adec\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u52d5\u7684\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u3042\u308bRuby\u306f\u3001\u305d\u306e\u30b7\u30f3\u30d7\u30eb\u3055\u3068\u67d4\u8edf\u6027\u3067\u6709\u540d\u3067\u3059\u3002\u958b\u767a\u8005\u304c\u3088\u304f\u906d\u9047\u3059\u308b\u30bf\u30b9\u30af\u306e\u3072\u3068\u3064\u306b\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u306f\u3001\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3001\u4e00\u6642\u7684\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30fb\u30c8\u30fc\u30af\u30f3\u3001\u30c6\u30b9\u30c8\u30fb\u30c7\u30fc\u30bf\u306a\u3069\u3092\u751f\u6210\u3059\u308b\u306e\u306b\u4fbf\u5229\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001Ruby\u3067\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u8907\u6570\u306e\u65b9\u6cd5\u3092\u8abf\u3079\u3001\u305d\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3001\u5b9f\u7528\u7684\u306a\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002\u6700\u5f8c\u306b\u306f\u3001\u3042\u306a\u305f\u306eRuby\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u751f\u6210\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u3092\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3084\u8003\u616e\u4e8b\u9805\u3068\u3068\u3082\u306b\u3057\u3063\u304b\u308a\u3068\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p><h3><strong>\u306a\u305c\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u306e\u304b\uff1f<\/strong><\/h3><p>\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3068\u306f\u3001\u4e88\u6e2c\u4e0d\u53ef\u80fd\u306b\u751f\u6210\u3055\u308c\u308b\u6587\u5b57\u5217\u306e\u3053\u3068\u3067\u3001\u6b21\u306e\u3088\u3046\u306a\u5834\u9762\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\uff1a<\/p><ul><li><strong>\u30e6\u30cb\u30fc\u30af\u306a\u8b58\u5225\u5b50\uff1a<\/strong> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ec\u30b3\u30fc\u30c9\u3001URL\u3001\u307e\u305f\u306fAPI\u30c8\u30fc\u30af\u30f3\u306eID\u3092\u4f5c\u6210\u3059\u308b\u3002<\/li><li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong> \u4e00\u6642\u7684\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30fc\u3001CSRF \u30c8\u30fc\u30af\u30f3\u306e\u751f\u6210\u3002<\/li><li><strong>\u30c6\u30b9\u30c8\uff1a<\/strong> \u5358\u4f53\u30c6\u30b9\u30c8\u3084\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u7528\u306e\u30e2\u30c3\u30af\u30c7\u30fc\u30bf\u3092\u4f5c\u6210\u3059\u308b\u3002<\/li><li><strong>\u30d5\u30a1\u30a4\u30eb\u540d\uff1a<\/strong> \u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30a1\u30a4\u30eb\u30a2\u30c3\u30d7\u30ed\u30fc\u30c9\u6642\u306e\u885d\u7a81\u3092\u56de\u907f\u3002<\/li><\/ul><p>Ruby\u306b\u306f\u3001\u3053\u308c\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u7d44\u307f\u8fbc\u307f\u30c4\u30fc\u30eb\u3084\u5916\u90e8\u30c4\u30fc\u30eb\u304c\u3044\u304f\u3064\u304b\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u57fa\u672c\u7684\u306a\u30cb\u30fc\u30ba\u5411\u3051\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u65b9\u6cd5\u304b\u3089\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u306e\u6697\u53f7\u5316\u3055\u308c\u305f\u30bb\u30ad\u30e5\u30a2\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u307e\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u3082\u306e\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u3002\u3067\u306f\u3001\u305d\u306e\u30e1\u30bd\u30c3\u30c9\u306b\u3064\u3044\u3066\u898b\u3066\u3044\u3053\u3046\u3002<\/p><h3><strong>\u30e1\u30bd\u30c3\u30c91\uff1a\u4f7f\u7528\u3059\u308b <code>\u30e9\u30f3\u30c9<\/code> \u6587\u5b57\u914d\u5217<\/strong><\/h3><p>Ruby\u3067\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u6700\u3082\u7c21\u5358\u306a\u65b9\u6cd5\u306f <code>\u30e9\u30f3\u30c9<\/code> \u30e1\u30bd\u30c3\u30c9\u306b\u6587\u5b57\u914d\u5217\u3092\u6e21\u3059\u3002\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f <code>\u30e9\u30f3\u30c9<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u4e71\u6570\u3092\u751f\u6210\u3057\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u3042\u3089\u304b\u3058\u3081\u5b9a\u7fa9\u3055\u308c\u305f\u30bb\u30c3\u30c8\u304b\u3089\u6587\u5b57\u3092\u9078\u3076\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p><h5><strong>\u30b9\u30c6\u30c3\u30d7<\/strong><\/h5><ul><li>\u6587\u5b57\u30bb\u30c3\u30c8\uff08\u6587\u5b57\u3001\u6570\u5b57\u3001\u8a18\u53f7\u306a\u3069\uff09\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/li><li>\u7528\u9014 <code>\u30e9\u30f3\u30c9<\/code> \u3067\u3001\u96c6\u5408\u304b\u3089\u7121\u4f5c\u70ba\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u9078\u629e\u3059\u308b\u3002<\/li><li>\u6587\u5b57\u3092\u7e70\u308a\u8fd4\u3057\u30b5\u30f3\u30d7\u30ea\u30f3\u30b0\u3057\u3066\u6587\u5b57\u5217\u3092\u69cb\u7bc9\u3059\u308b\u3002<\/li><\/ul><h5><strong>\u4f8b<\/strong><\/h5><pre>\u30eb\u30d3\u30fc\n# \u6587\u5b57\u30bb\u30c3\u30c8\u3092\u5b9a\u7fa9\u3059\u308b\nchars = ('a'..'z').to_a + ('A'..'Z').to_a + ('0'..'9').to_a\n# 10\u6587\u5b57\u306e\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\n\u9577\u3055 = 10\nrandom_string = (0...length).map { chars[rand(chars.length)] }.join\n\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u3092\u30d7\u30c3\u30c8\u3059\u308b<\/pre><h5><strong>\u8aac\u660e<\/strong><\/h5><ul><li><code>('a'..'z').to_a<\/code> \u306f\u5c0f\u6587\u5b57\u306e\u914d\u5217\u3092\u4f5c\u6210\u3057\u3001\u5927\u6587\u5b57\u3068\u6570\u5b57\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u3067\u3042\u308b\u3002<\/li><li><code>\u30e9\u30f3\u30c9(chars.length)<\/code> \u306f\u914d\u5217\u304b\u3089\u30e9\u30f3\u30c0\u30e0\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u9078\u3076\u3002<\/li><li>\u30de\u30c3\u30d7\u30fb\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u53cd\u5fa9\u3059\u308b\u3002 <code>\u9577\u3055<\/code> \u56de\u3001\u6bce\u56de\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u3092\u9078\u629e\u3059\u308b\u3002<\/li><li><code>\u53c2\u52a0<\/code> \u306f\u6587\u5b57\u30921\u3064\u306e\u6587\u5b57\u5217\u306b\u307e\u3068\u3081\u308b\u3002<\/li><\/ul><h5><strong>\u51fa\u529b<\/strong><\/h5><p>\u3053\u306e\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308b\u3002 <code>kJ9mP2xL5q<\/code>.rand\u306e\u30e9\u30f3\u30c0\u30e0\u6027\u306b\u3088\u308a\u3001\u5b9f\u884c\u3059\u308b\u305f\u3073\u306b\u7570\u306a\u308b\u7d50\u679c\u304c\u5f97\u3089\u308c\u308b\u3002<\/p><h5><strong>\u9577\u6240\u3068\u77ed\u6240<\/strong><\/h5><ul><li><strong>\u9577\u6240:<\/strong> \u30b7\u30f3\u30d7\u30eb\u3067\u3001\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u3067\u3001\u57fa\u672c\u7684\u306a\u30cb\u30fc\u30ba\u306b\u306f\u9ad8\u901f\u3002<\/li><li><strong>\u77ed\u6240:<\/strong> \u6697\u53f7\u5b66\u7684\u306b\u5b89\u5168\u3067\u306f\u306a\u3044\u306e\u3067\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u654f\u611f\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u30c8\u30fc\u30af\u30f3\u306b\u4f7f\u3046\u306e\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/li><\/ul><h3><strong>\u65b9\u6cd52: \u85aa\u3092\u4f7f\u3046 <code>\u30a2\u30ec\u30a4#sample<\/code><\/strong><\/h3><p>\u30eb\u30d3\u30fc <code>\u30a2\u30ec\u30a4#sample<\/code> \u30e1\u30bd\u30c3\u30c9\u306f\u3001\u914d\u5217\u304b\u3089\u8981\u7d20\u3092\u30e9\u30f3\u30c0\u30e0\u306b\u9078\u629e\u3059\u308b\u4fbf\u5229\u306a\u65b9\u6cd5\u3067\u3042\u308b\u3002\u3053\u308c\u306frand\u3092\u76f4\u63a5\u4f7f\u3046\u3088\u308a\u3082\u30af\u30ea\u30fc\u30f3\u3067\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u306e\u306b\u7406\u60f3\u7684\u3067\u3042\u308b\u3002<\/p><h5><strong>\u4f8b<\/strong><\/h5><pre>\u30eb\u30d3\u30fc\nchars = ('a'..'z').to_a + ('A'..'Z').to_a + ('0'..'9').to_a\n\u9577\u3055 = 10\nrandom_string = Array.new(\u9577\u3055) { chars.sample }.join\nrandom_string\u3092\u7f6e\u304f<\/pre><h5><strong>\u8aac\u660e<\/strong><\/h5><ul><li><code>\u6587\u5b57\u30b5\u30f3\u30d7\u30eb<\/code> \u6587\u5b57\u914d\u5217\u304b\u3089\u30e9\u30f3\u30c0\u30e0\u306b1\u3064\u306e\u8981\u7d20\u3092\u9078\u3076\u3002<\/li><li><code>Array.new(length) { chars.sample }. <\/code>\u306e\u914d\u5217\u3092\u4f5c\u6210\u3059\u308b\u3002 <code>\u9577\u3055<\/code> \u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u3002<\/li><li><code>\u53c2\u52a0<\/code> \u306f\u914d\u5217\u3092\u6587\u5b57\u5217\u306b\u9023\u7d50\u3057\u307e\u3059\u3002<\/li><\/ul><h5><strong>\u51fa\u529b<\/strong><\/h5><p>\u8003\u3048\u3089\u308c\u308b\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3060\u3002 <code>N7pQ8rT2vY<\/code>.<\/p><h5><strong>\u9577\u6240\u3068\u77ed\u6240<\/strong><\/h5><ul><li><strong>\u9577\u6240:<\/strong> \u8aad\u307f\u3084\u3059\u304f\u7c21\u6f54\u3067\u3001Ruby\u306e\u7d44\u307f\u8fbc\u307f\u30e1\u30bd\u30c3\u30c9\u3092\u6d3b\u7528\u3057\u3066\u3044\u308b\u3002<\/li><li><strong>\u77ed\u6240:<\/strong> \u305d\u308c\u3067\u3082\u6697\u53f7\u7684\u306b\u306f\u5b89\u5168\u3067\u306f\u306a\u304f\u3001\u6027\u80fd\u306f\u6587\u5b57\u30bb\u30c3\u30c8\u306e\u30b5\u30a4\u30ba\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/li><\/ul><h3><strong>\u30e1\u30bd\u30c3\u30c93\uff1a\u4f7f\u7528\u3059\u308b <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code><\/strong><\/h3><p>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u654f\u611f\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\uff08\u30d1\u30b9\u30ef\u30fc\u30c9\u3084API\u30c8\u30fc\u30af\u30f3\u306a\u3069\uff09\u306b\u306f\u3001Ruby\u306e <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u6700\u9069\u3067\u3042\u308b\u3002\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e00\u90e8\u3067\u3042\u308a\u3001\u6697\u53f7\u7684\u306b\u5b89\u5168\u306a\u4e71\u6570\u751f\u6210\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u3001\u4e88\u6e2c\u53ef\u80fd\u6027\u3092\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30b7\u30ca\u30ea\u30aa\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/p><h5><strong>\u4f7f\u7528\u65b9\u6cd5 <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code><\/strong><\/h5><p>\u307e\u305a\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u5fc5\u8981\u3068\u3059\u308b\uff1a<\/p><pre>\u30eb\u30d3\u30fc\nrequire 'securerandom'<\/pre><p><strong>\u30aa\u30d7\u30b7\u30e7\u30f31\uff1a\u82f1\u6570\u5b57\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217<\/strong><\/p><pre>\u30eb\u30d3\u30fc\nrandom_string = SecureRandom.alphanumeric(10)\nrandom_string \u3092\u30d7\u30c3\u30c8\u3059\u308b\u3002<\/pre><ul><li><strong>\u51fa\u529b\uff1a<\/strong> \u3068\u3044\u3046\u3088\u3046\u306a\u3082\u306e\u3060\u3002 <code>aB9xP2kL5m<\/code>.<\/li><li><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong> <code>SecureRandom.alphanumeric(length)<\/code> \u306f\u3001\u6587\u5b57 (a-z, A-Z) \u3068\u6570\u5b57 (0-9) \u3092\u542b\u3080\u3001\u6307\u5b9a\u3055\u308c\u305f\u9577\u3055\u306e\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u3002<\/li><\/ul><p><strong>\u30aa\u30d7\u30b7\u30e7\u30f32\uff1a16\u9032\u6587\u5b57\u5217<\/strong><\/p><pre>\u30eb\u30d3\u30fc\nrandom_string = SecureRandom.hex(10)\nrandom_string \u3092\u30d7\u30c3\u30c8\u3059\u308b\u3002<\/pre><ul><li>\u51fa\u529b\uff1a20\u6587\u5b57\u306e16\u9032\u6587\u5b57\u5217\u3001 <code>1f3a9c2d5e8b4d6e2f9a0c<\/code>.<\/li><li>\u8aac\u660e\u3059\u308b\uff1a <code>SecureRandom.hex(n)<\/code> \u306e\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u3002 <code>n * 2 <\/code>\u6587\u5b57\u3067\u30010\u301c9\u306e\u6570\u5b57\u3068a\u301cf\u306e\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li><\/ul><p><strong>\u30aa\u30d7\u30b7\u30e7\u30f33\uff1aBase64\u6587\u5b57\u5217<\/strong><\/p><pre>\u30eb\u30d3\u30fc\nrandom_string = SecureRandom.base64(10)\nrandom_string \u3092\u30d7\u30c3\u30c8\u3059\u308b\u3002<\/pre><ul><li><strong>\u51fa\u529b\uff1a<\/strong> \u3068\u3044\u3046\u3088\u3046\u306a\u3082\u306e\u3060\u3002 <code>Xj9kP2mL5q==.<\/code><\/li><li><strong>\u8aac\u660e\u3059\u308b\uff1a<\/strong> <code>SecureRandom.base64(n)<\/code> \u306fBase64\u30a8\u30f3\u30b3\u30fc\u30c9\u3055\u308c\u305f\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u3002 <code>n * 4\/3<\/code> \u6587\u5b57\u306e\u9577\u3055\u3067\u3001a-z\u3001A-Z\u30010-9\u3001+\u3001\/\u3092\u4f7f\u7528\u3057\u3001\u30d1\u30c7\u30a3\u30f3\u30b0\uff08=\uff09\u4ed8\u304d\u3002<\/li><\/ul><h5><strong>\u30aa\u30d7\u30b7\u30e7\u30f34\uff1a\u30ab\u30b9\u30bf\u30e0\u6587\u5b57\u30bb\u30c3\u30c8<\/strong><\/h5><p>\u7279\u5b9a\u306e\u6587\u5b57\u30bb\u30c3\u30c8\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f <code>SecureRandom.random_bytes<\/code> \u305d\u3057\u3066\u305d\u308c\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\uff1a<\/p><pre>\u30eb\u30d3\u30fc\nrequire 'securerandom'\nchars = ('a'..'z').to_a + ('0'..'9').to_a\n\u9577\u3055 = 10\nrandom_string = Array.new(length) { chars[SecureRandom.random_number(chars.length)] }.join\nrandom_string \u3092\u30d7\u30c3\u30c8\u3059\u308b<\/pre><h5><strong>\u9577\u6240\u3068\u77ed\u6240<\/strong><\/h5><ul><li><strong>\u9577\u6240:<\/strong> \u6697\u53f7\u7684\u306b\u5b89\u5168\u3067\u3001\u6c4e\u7528\u6027\u304c\u3042\u308a\u3001\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u4e00\u90e8\u3067\u3042\u308b\u3002<\/li><li><strong>\u77ed\u6240:<\/strong> \u975e\u30bb\u30ad\u30e5\u30a2\u306a\u65b9\u6cd5\u3088\u308a\u82e5\u5e72\u9045\u3044\u304c\u3001\u305d\u306e\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u3068\u3063\u3066\u4fa1\u5024\u304c\u3042\u308b\u3002<\/li><\/ul><h3><strong>\u65b9\u6cd54\uff1aUUID\u3092\u4f7f\u7528\u3059\u308b <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code><\/strong><\/h3><p>\u30e6\u30cb\u30fc\u30af\u306a\u8b58\u5225\u5b50\u3068\u3057\u3066\u306f\u3001Universally Unique Identifier (UUID)\u304c\u7406\u60f3\u7684\u3067\u3059\u3002Ruby\u306e <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u306f <code>\u30e6\u30a4\u30c9<\/code> \u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u30d0\u30fc\u30b8\u30e7\u30f34\u306eUUID\u3092\u751f\u6210\u3059\u308b\u3002\u3053\u308c\u306f\u30e9\u30f3\u30c0\u30e0\u3067\u3001\u885d\u7a81\u3059\u308b\u53ef\u80fd\u6027\u306f\u6975\u3081\u3066\u4f4e\u3044\u3002<\/p><h5><strong>\u4f8b<\/strong><\/h5><pre>\u30eb\u30d3\u30fc\nrequire 'securerandom'\nuuid = SecureRandom.uuid\nuuid \u3092\u7f6e\u304f<\/pre><h5><strong>\u51fa\u529b<\/strong><\/h5><p>xxxxxxxx-xxxxx-4xxx-yxxx-xxxxxxxxxxx \u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306736\u6587\u5b57\u306e\u6587\u5b57\u5217\u3001 <code>550e8400-e29b-41d4-a716-446655440000<\/code>.<\/p><h5><strong>\u9577\u6240\u3068\u77ed\u6240<\/strong><\/h5><ul><li><strong>\u9577\u6240:<\/strong> \u4e16\u754c\u7684\u306b\u30e6\u30cb\u30fc\u30af\u3067\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u3001\u5b89\u5168\u3002<\/li><li><strong>\u77ed\u6240:<\/strong> \u9577\u3055\u3068\u5f62\u5f0f\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u30cb\u30fc\u30ba\u306b\u5408\u3046\u3068\u306f\u9650\u3089\u306a\u3044\u3002<\/li><\/ul><h3><strong>\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u306e\u30ab\u30b9\u30bf\u30de\u30a4\u30ba<\/strong><\/h3><p>\u30e9\u30f3\u30c0\u30e0\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u81ea\u5206\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff1a<\/p><ul><li><strong>\u9577\u3055\uff1a<\/strong> \u3092\u5909\u66f4\u3059\u308b\u3002 <code>\u9577\u3055<\/code> \u30d1\u30e9\u30e1\u30fc\u30bf\u307e\u305f\u306f\u914d\u5217\u306e\u30b5\u30a4\u30ba\u3002<\/li><li><strong>\u6587\u5b57\u30bb\u30c3\u30c8\uff1a<\/strong> \u5fc5\u8981\u306a\u3082\u306e\u3060\u3051\u3092\u542b\u3080\u3088\u3046\u306b\u6587\u5b57\u306e\u914d\u5217\u3092\u5909\u66f4\u3059\u308b\uff08\u4f8b\u3048\u3070\u3001\u6bcd\u97f3\u3092\u9664\u5916\u3057\u305f\u308a\u3001\u6b21\u306e\u3088\u3046\u306a\u8a18\u53f7\u3092\u8ffd\u52a0\u3057\u305f\u308a\u3059\u308b\uff09\u3002 <code>!@#$<\/code>).<\/li><li><strong>\u30b1\u30fc\u30b9<\/strong> \u5c0f\u6587\u5b57\u306e\u307f\u3001\u5927\u6587\u5b57\u306e\u307f\u3001\u307e\u305f\u306f\u6df7\u5728\u3057\u3066\u4f7f\u7528\u3059\u308b\u3002<\/li><\/ul><h5><strong>\u4f8b\u8a18\u53f7\u4ed8\u304d\u30ab\u30b9\u30bf\u30e0\u6587\u5b57\u5217<\/strong><\/h5><pre>\u30eb\u30d3\u30fc\nchars = ('a'..'z').to_a + ('0'..'9').to_a + %w(! @ # $ %)\n\u9577\u3055 = 12\nrandom_string = Array.new(\u9577\u3055) { chars.sample }.join\nrandom_string\u3092\u7f6e\u304f<\/pre><ul><li><strong>\u51fa\u529b\uff1a<\/strong> \u304b\u3082\u3057\u308c\u306a\u3044 <code>k9#mP2$xL5!<\/code>.<\/li><\/ul><h3><strong>\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong><\/h3><ul><li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u554f\u984c<\/strong><ul><li>\u7528\u9014 <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u30c8\u30fc\u30af\u30f3\u306a\u3069\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u95a2\u9023\u3059\u308b\u3082\u306e\u3002<\/li><li>\u907f\u3051\u308b <code>\u30e9\u30f3\u30c9<\/code> \u307e\u305f\u306f <code>\u30b5\u30f3\u30d7\u30eb<\/code> Ruby\u306e\u64ec\u4f3c\u4e71\u6570\u751f\u6210\u5668\uff08PRNG\uff09\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5411\u3051\u3067\u3042\u308a\u3001\u6697\u53f7\u5b66\u7684\u306b\u5b89\u5168\u3067\u306f\u306a\u3044\u3002<\/li><\/ul><\/li><li><strong>\u9577\u3055\uff1a<\/strong><ul><li>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u9069\u3057\u305f\u9577\u3055\u3092\u9078\u3073\u307e\u3057\u3087\u3046\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u5834\u5408\u300112\uff5e16\u6587\u5b57\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u4e00\u822c\u7684\u306a\u6700\u4f4e\u6587\u5b57\u6570\u3067\u3059\u3002<\/li><li>\u8b58\u5225\u5b50\u306b\u3064\u3044\u3066\u306f\u3001\u9577\u3055\u3068\u6587\u5b57\u30bb\u30c3\u30c8\u304c\u885d\u7a81\u3092\u907f\u3051\u308b\u306e\u306b\u5341\u5206\u306a\u4e00\u610f\u6027\u3092\u6301\u3064\u3088\u3046\u306b\u3059\u308b\u3002<\/li><\/ul><\/li><li><strong>\u6587\u5b57\u30bb\u30c3\u30c8\uff1a<\/strong><ul><li>\u6587\u5b57\u3001\u6570\u5b57\u3001\u8a18\u53f7\u3092\u6df7\u5728\u3055\u305b\u3001\u3088\u308a\u5f37\u529b\u306a\u6587\u5b57\u5217\u3068\u3059\u308b\u3002<\/li><li>\u30e6\u30fc\u30b6\u30fc\u5411\u3051\u306e\u6587\u5b57\u5217\u3067\u306f\u3001\u3042\u3044\u307e\u3044\u306a\u6587\u5b57\uff08\u305f\u3068\u3048\u3070'l'\u3068'1'\u3001'O'\u3068'0'\uff09\u3092\u907f\u3051\u308b\u3002<\/li><\/ul><\/li><li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong><ul><li>\u30bb\u30ad\u30e5\u30a2\u3067\u306a\u3044\u5834\u5408\u306f\u3001\u30e9\u30f3\u30c9\u304b\u30b5\u30f3\u30d7\u30eb\u306e\u65b9\u304c\u901f\u3044\u3002<\/li><li>\u5927\u898f\u6a21\u767a\u96fb\u306e\u5834\u5408\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u30c6\u30b9\u30c8\u3057\u3001\u30d0\u30c3\u30c1\u51e6\u7406\u3092\u691c\u8a0e\u3059\u308b\u3002<\/li><\/ul><\/li><li><strong>\u72ec\u81ea\u6027\uff1a<\/strong><ul><li>\u4e00\u610f\u306a\u8b58\u5225\u5b50\u306b\u3064\u3044\u3066\u306f\u3001UUID\u3092\u691c\u8a0e\u3059\u308b\u304b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u65e2\u5b58\u306e\u5024\u3068\u7167\u5408\u3059\u308b\u3002<\/li><\/ul><\/li><\/ul><h3><strong>\u4f7f\u7528\u4f8b<\/strong><\/h3><ul><li><strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u751f\u6210\uff1a<\/strong><\/li><\/ul><pre>\u30eb\u30d3\u30fc\nrequire 'securerandom'\n\u30d1\u30b9\u30ef\u30fc\u30c9 = SecureRandom.alphanumeric(16)<\/pre><ul><li>\u3092\u7f6e\u304f\u3002<code>\u751f\u6210\u3055\u308c\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\uff1a#{password}\u3002<\/code>&#8220;<\/li><li>\u4e00\u6642\u7684\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u521d\u671f\u30e6\u30fc\u30b6\u30fc\u8a2d\u5b9a\u306b\u6700\u9069\u3067\u3059\u3002<\/li><li><strong>API\u30c8\u30fc\u30af\u30f3\uff1a<\/strong><\/li><\/ul><pre>\u30eb\u30d3\u30fc\nrequire 'securerandom'\n\u30c8\u30fc\u30af\u30f3 = SecureRandom.base64(32)<\/pre><ul><li>\u3092\u7f6e\u304f\u3002<code>API\u30c8\u30fc\u30af\u30f3: #{token}<\/code>&#8220;<\/li><li>\u5b89\u5168\u3067\u8a8d\u8a3c\u306b\u9069\u3057\u3066\u3044\u308b\u3002<\/li><li><strong>\u30c6\u30b9\u30c8\u30c7\u30fc\u30bf\uff1a<\/strong><\/li><\/ul><pre>\u30eb\u30d3\u30fc\nchars = ('a'..'z').to_a\n5.times do\nputs Array.new(8) { chars.sample }.join\n\u7d42\u4e86<\/pre><ul><li>\u30c6\u30b9\u30c8\u7528\u306b8\u6587\u5b57\u306e\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u30925\u3064\u751f\u6210\u3059\u308b\u3002<\/li><\/ul><h3><strong>\u6f5c\u5728\u7684\u306a\u843d\u3068\u3057\u7a74<\/strong><\/h3><ul><li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\uff1a<\/strong> \u306e\u3088\u3046\u306a\u5b89\u5168\u3067\u306a\u3044\u65b9\u6cd5\u3092\u4f7f\u7528\u3059\u308b\u3002 <code>\u30e9\u30f3\u30c9<\/code> \u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u4e88\u6e2c\u53ef\u80fd\u306a\u7d50\u679c\u3068\u306a\u308a\u3001\u653b\u6483\u306b\u5bfe\u3057\u3066\u8106\u5f31\u306b\u306a\u308b\u3002<\/li><li><strong>\u885d\u7a81\u306e\u30ea\u30b9\u30af\uff1a<\/strong> \u4e00\u610f\u8b58\u5225\u5b50\u306b\u3064\u3044\u3066\u306f\u3001\u6587\u5b57\u5217\u306e\u9577\u3055\u3068\u6587\u5b57\u30bb\u30c3\u30c8\u306b\u57fa\u3065\u3044\u3066\u885d\u7a81\u306e\u78ba\u7387\u3092\u8a08\u7b97\u3059\u308b\uff08\u4f8b\uff1a\u8a95\u751f\u65e5\u554f\u984c\uff09\u3002<\/li><li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u3067\u591a\u304f\u306e\u9577\u3044\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u3002 <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u3082\u3063\u3068\u9045\u304f\u306a\u308b\u3053\u3068\u3082\u3042\u308b\u3002<\/li><\/ul><h3><strong>\u9ad8\u5ea6\u306a\u8003\u5bdf<\/strong><\/h3><ul><li><strong>\u30b7\u30fc\u30c9\uff1a<\/strong> \u30eb\u30d3\u30fc <code>\u30e9\u30f3\u30c9<\/code> \u306fPRNG\u306b\u30b7\u30fc\u30c9\u3092\u4f7f\u3046\u3002\u30b7\u30fc\u30c9\u306f <code>\u30b9\u30e9\u30f3\u30c9<\/code> \u518d\u73fe\u6027\u306e\u3042\u308b\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\uff08\u30c6\u30b9\u30c8\u306a\u3069\uff09\u306b\u306f\u3001\u3053\u306e\u3088\u3046\u306a\u3053\u3068\u306f\u907f\u3051\u307e\u3057\u3087\u3046\u3002<\/li><\/ul><pre>\u30eb\u30d3\u30fc\nsrand(1234)\nputs rand(100) # \u540c\u3058\u30b7\u30fc\u30c9\u3067\u4e00\u8cab\u3057\u305f\u51fa\u529b<\/pre><ul><li><strong>\u30ab\u30b9\u30bf\u30e0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\uff1a<\/strong> \u7279\u6b8a\u306a\u30cb\u30fc\u30ba\u306b\u5bfe\u3057\u3066\u306f\u3001\u72ec\u81ea\u306e\u30b8\u30a7\u30cd\u30ec\u30fc\u30bf\u30fc\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u304c <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u901a\u5e38\u306f\u3053\u308c\u3067\u5341\u5206\u3067\u3042\u308a\u3001\u5b89\u5168\u3067\u3042\u308b\u3002<\/li><li><strong>\u793e\u5916\u306e\u5b9d\u77f3\uff1a<\/strong> \u306e\u3088\u3046\u306a\u56f3\u66f8\u9928\u304c\u3042\u308b\u3002 <code>\u8d0b\u4f5c\u8005<\/code> \u306f\u3001\u73fe\u5b9f\u7684\u306a\u30e9\u30f3\u30c0\u30e0\u30c7\u30fc\u30bf\uff08\u540d\u524d\u3084\u96fb\u5b50\u30e1\u30fc\u30eb\u306a\u3069\uff09\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304c\u3001\u6697\u53f7\u7684\u306b\u306f\u5b89\u5168\u3067\u306f\u306a\u3044\u3002<\/li><\/ul><h2><strong>\u7d50\u8ad6<\/strong><\/h2><p>Ruby\u3067\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u306e\u306f\u7c21\u5358\u3067\u3059\u3002 <code>\u30e9\u30f3\u30c9<\/code> \u305d\u3057\u3066 <code>\u30a2\u30ec\u30a4#sample<\/code> \u57fa\u672c\u7684\u306a\u30bf\u30b9\u30af\u306f\u3001\u6697\u53f7\u7684\u306b\u5b89\u5168\u306a <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u7e4a\u7d30\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u305f\u3081\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u3002\u304a\u5ba2\u69d8\u306e\u30cb\u30fc\u30ba\u306b\u5408\u308f\u305b\u3066\u304a\u9078\u3073\u304f\u3060\u3055\u3044\u3002 <code>\u30e9\u30f3\u30c9<\/code> \u307e\u305f\u306f <code>\u30b5\u30f3\u30d7\u30eb<\/code> \u3092\u3001\u7d20\u65e9\u304f\u5b89\u5168\u3067\u306a\u3044\u6587\u5b57\u5217\u306e\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u3002 <code>\u30bb\u30ad\u30e5\u30a2\u30e9\u30f3\u30c0\u30e0<\/code> \u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u30c8\u30fc\u30af\u30f3\u3001\u307e\u305f\u306fUUID\u306e\u305f\u3081\u306b\u3002\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5408\u308f\u305b\u3066\u9577\u3055\u3084\u6587\u5b57\u30bb\u30c3\u30c8\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u5e38\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u512a\u5148\u3057\u307e\u3057\u3087\u3046\u3002<\/p><p>\u3053\u308c\u3089\u306e\u30c6\u30af\u30cb\u30c3\u30af\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\u3053\u3068\u3067\u3001\u30c6\u30b9\u30c8\u304b\u3089\u5b89\u5168\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u307e\u3067\u3001\u5e45\u5e83\u3044\u30b7\u30ca\u30ea\u30aa\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u4f8b\u3092\u8a66\u3057\u3066\u307f\u3066\u3001\u3042\u306a\u305f\u306e\u30e9\u30f3\u30c0\u30e0\u6587\u5b57\u5217\u304c\u52b9\u679c\u7684\u3067\u3001\u5b89\u5168\u3067\u3001\u76ee\u7684\u306b\u5408\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u5b9f\u306b\u3059\u308b\u305f\u3081\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/www.railscarma.com\/ja\/\">\u30ec\u30fc\u30eb\u30ab\u30fc\u30de<\/a> \u306f\u4fe1\u983c\u3067\u304d\u308b <a href=\"https:\/\/www.railscarma.com\/ja\/\">Ruby on Rails\u958b\u767a<\/a> \u304a\u5ba2\u69d8\u306e\u30c7\u30b8\u30bf\u30eb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u52a0\u901f\u3059\u308b\u305f\u3081\u306b\u3001\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u3067\u30bb\u30ad\u30e5\u30a2\u3001\u304b\u3064\u9ad8\u6027\u80fd\u306a\u30a6\u30a7\u30d6\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3059\u308b\u30d1\u30fc\u30c8\u30ca\u30fc\u3067\u3059\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  <div class=\"related-post slider\">\r\n        <div class=\"headline\">\u95a2\u9023\u8a18\u4e8b<\/div>\r\n    <div class=\"post-list owl-carousel\">\r\n\r\n            <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"MLOps\u306e\u305f\u3081\u306eRuby on Rails: ML\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u5b8c\u5168\u30ac\u30a4\u30c9\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/ruby-on-rails-for-mlops-ml%e3%83%87%e3%83%97%e3%83%ad%e3%82%a4%e3%83%a1%e3%83%b3%e3%83%88%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89\/?related_post_from=41350\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Ruby-on-Rails-for-MLOps.png\" class=\"attachment-full size-full wp-post-image\" alt=\"MLOps\u306e\u305f\u3081\u306eRuby on Rails\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Ruby-on-Rails-for-MLOps.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Ruby-on-Rails-for-MLOps-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Ruby-on-Rails-for-MLOps-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Ruby-on-Rails-for-MLOps-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"MLOps\u306e\u305f\u3081\u306eRuby on Rails: ML\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u5b8c\u5168\u30ac\u30a4\u30c9\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/ruby-on-rails-for-mlops-ml%e3%83%87%e3%83%97%e3%83%ad%e3%82%a4%e3%83%a1%e3%83%b3%e3%83%88%e5%ae%8c%e5%85%a8%e3%82%ac%e3%82%a4%e3%83%89\/?related_post_from=41350\">\r\n        MLOps\u306e\u305f\u3081\u306eRuby on Rails: ML\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u5b8c\u5168\u30ac\u30a4\u30c9  <\/a>\r\n\r\n        <\/div>\r\n              <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Ruby on Rails\u3067\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u578bAI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/building-agentic-ai-applications-with-ruby-on-rails\/?related_post_from=41339\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Building-Agentic-AI-Applications-with-Ruby-on-Rails.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Ruby on Rails\u306b\u3088\u308b\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u578bAI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Building-Agentic-AI-Applications-with-Ruby-on-Rails.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Building-Agentic-AI-Applications-with-Ruby-on-Rails-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Building-Agentic-AI-Applications-with-Ruby-on-Rails-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/05\/Building-Agentic-AI-Applications-with-Ruby-on-Rails-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"Ruby on Rails\u3067\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u578bAI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/building-agentic-ai-applications-with-ruby-on-rails\/?related_post_from=41339\">\r\n        Ruby on Rails\u3067\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u578bAI\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u69cb\u7bc9\u3059\u308b  <\/a>\r\n\r\n        <\/div>\r\n              <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Offliberty Ruby Gem\u3068\u306f\uff1f\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/what-is-offliberty-ruby-gem-and-how-it-works\/?related_post_from=41304\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/What-is-Offliberty-Ruby-Gem-and-How-It-Works.png\" class=\"attachment-full size-full wp-post-image\" alt=\"\u30aa\u30d5\u30ea\u30d0\u30c6\u30a3\u30fb\u30eb\u30d3\u30fc\u30fb\u30b8\u30a7\u30e0\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/What-is-Offliberty-Ruby-Gem-and-How-It-Works.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/What-is-Offliberty-Ruby-Gem-and-How-It-Works-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/What-is-Offliberty-Ruby-Gem-and-How-It-Works-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/What-is-Offliberty-Ruby-Gem-and-How-It-Works-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"Offliberty Ruby Gem\u3068\u306f\uff1f\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/what-is-offliberty-ruby-gem-and-how-it-works\/?related_post_from=41304\">\r\n        Offliberty Ruby Gem\u3068\u306f\uff1f  <\/a>\r\n\r\n        <\/div>\r\n              <div class=\"item\">\r\n            <div class=\"thumb post_thumb\">\r\n    <a  title=\"Ruby on Rails\u3092\u4f7f\u3063\u3066\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306aSaaS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u65b9\u6cd5\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/how-to-build-a-scalable-saas-platform-using-ruby-on-rails\/?related_post_from=41273\">\r\n\r\n      <img decoding=\"async\" width=\"800\" height=\"300\" src=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/Build-a-SaaS-Platform-Using-Ruby-on-Rails.png\" class=\"attachment-full size-full wp-post-image\" alt=\"Ruby on Rails\u3092\u4f7f\u3063\u3066SaaS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3059\u308b\" srcset=\"https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/Build-a-SaaS-Platform-Using-Ruby-on-Rails.png 800w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/Build-a-SaaS-Platform-Using-Ruby-on-Rails-300x113.png 300w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/Build-a-SaaS-Platform-Using-Ruby-on-Rails-768x288.png 768w, https:\/\/www.railscarma.com\/wp-content\/uploads\/2026\/04\/Build-a-SaaS-Platform-Using-Ruby-on-Rails-18x7.png 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\r\n\r\n    <\/a>\r\n  <\/div>\r\n\r\n  <a class=\"title post_title\"  title=\"Ruby on Rails\u3092\u4f7f\u3063\u3066\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306aSaaS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u65b9\u6cd5\" 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One common task developers encounter is generating random strings, which can be useful for creating unique identifiers, temporary passwords, session tokens, or test data. In this article, we\u2019ll explore multiple methods to generate random strings in Ruby, discuss their applications, and provide practical examples. By the end, you\u2019ll have a solid understanding of how to implement random string generation in your Ruby projects, along with best practices and considerations. Why Generate Random Strings? Random strings are sequences of characters generated unpredictably, often used in scenarios like: Unique Identifiers: Creating IDs for database records, URLs, or API &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/www.railscarma.com\/ja\/%e3%83%96%e3%83%ad%e3%82%b0\/how-to-build-a-scalable-saas-platform-using-ruby-on-rails\/\"> <span class=\"screen-reader-text\">Ruby on Rails\u3092\u4f7f\u3063\u3066\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306aSaaS\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u69cb\u7bc9\u3059\u308b\u65b9\u6cd5<\/span> \u3082\u3063\u3068\u8aad\u3080 \"<\/a><\/p>","protected":false},"author":5,"featured_media":39559,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1224],"tags":[],"class_list":["post-39521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Generate a Random String in Ruby: Comprehensive Guide<\/title>\n<meta name=\"description\" content=\"How to Generate a Random String in Ruby (2025), Learn methods using SecureRandom, Array#sample, and tips for safe, unique strings.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railscarma.com\/ja\/\u30d6\u30ed\u30b0\/ruby\u3067\u30e9\u30f3\u30c0\u30e0\u306a\u6587\u5b57\u5217\u3092\u751f\u6210\u3059\u308b\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Generate a Random String in Ruby: Comprehensive Guide\" \/>\n<meta property=\"og:description\" content=\"How to Generate a Random String in Ruby (2025), Learn methods using 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