{"id":2925,"date":"2025-01-08T10:37:11","date_gmt":"2025-01-08T10:37:11","guid":{"rendered":"https:\/\/elusivedata.io\/?p=2925"},"modified":"2025-08-14T19:31:30","modified_gmt":"2025-08-14T19:31:30","slug":"sqlite%e3%83%95%e3%82%a9%e3%83%ac%e3%83%b3%e3%82%b8%e3%83%83%e3%82%af%e3%81%ae%e9%87%8d%e8%a6%81%e3%81%aa%e3%82%b9%e3%82%ad%e3%83%ab%e3%81%a7%e3%81%82%e3%82%8b%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88","status":"publish","type":"post","link":"https:\/\/elusivedata.io\/ja\/decoding-varints-a-critical-skill-in-sqlite-forensics\/","title":{"rendered":"\u30d0\u30ea\u30f3\u30c8\u306e\u89e3\u8aad\uff1aSQLite\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u306b\u304a\u3051\u308b\u91cd\u8981\u306a\u30b9\u30ad\u30eb"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"2925\" class=\"elementor elementor-2925\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f400ea3 e-flex e-con-boxed e-con e-parent\" data-id=\"f400ea3\" 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<a href=\"https:\/\/elusivedata.io\/ja\/%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88%e8%a8%88%e7%ae%97%e6%a9%9f\/?v=efad7abb323e\" 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<a href=\"https:\/\/elusivedata.io\/ja\/sqlite%e3%83%95%e3%82%a9%e3%83%ac%e3%83%b3%e3%82%b8%e3%83%83%e3%82%af\/?v=efad7abb323e\">\u8a8d\u5b9aSQLite\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30b3\u30fc\u30b9<\/a> \u30d0\u30ea\u30f3\u30c8\u3001\u30d5\u30ea\u30fc\u30ea\u30b9\u30c8\u3001\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u30da\u30fc\u30b8\u306a\u3069\u3092\u3001\u5b9f\u7fd2\u3084\u5b9f\u8df5\u7684\u306a\u8ab2\u984c\u3092\u901a\u3057\u3066\u5b66\u3073\u307e\u3059\u3002<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ee35c3 elementor-cta--layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"8ee35c3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"https:\/\/elusivedata.io\/ja\/sqlite%e3%83%95%e3%82%a9%e3%83%ac%e3%83%b3%e3%82%b8%e3%83%83%e3%82%af\/?v=efad7abb323e\">\n\t\t\t\t\t<div class=\"elementor-cta__bg-wrapper\">\n\t\t\t\t<div class=\"elementor-cta__bg elementor-bg\" style=\"background-image: url(https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/06\/SQLite-Forensics-Mobile-Apps-1024x576.jpg);\" role=\"img\" aria-label=\"Instagram\u3001Telegram\u3001WhatsApp\u3001Messenger\u306a\u3069\u306e\u30e2\u30d0\u30a4\u30eb\u30a2\u30d7\u30ea\u306b\u304a\u3051\u308bSQLite\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af - \u5b9f\u4e16\u754c\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u96a0\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3059\u3002\"><\/div>\n\t\t\t\t<div class=\"elementor-cta__bg-overlay\"><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tSQLite\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u91cd\u8981\u306a\u30c7\u30fc\u30bf\u3092\u5fa9\u5143\u3057\u3001\u89e3\u91c8\u3059\u308b\u305f\u3081\u306e\u30d0\u30ea\u30f3\u30c8\u306e\u8b58\u5225\u3068\u89e3\u8aad\u3092\u5b66\u3076\u3002\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\t\u5f53\u793e\u306e\u8a8d\u5b9aSQLite\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u30fb\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u6574\u6570\u306e\u8b58\u5225\u304b\u3089\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u306e\u5b8c\u5168\u306a\u89e3\u91c8\u3001\u524a\u9664\u3055\u308c\u305f\u30ec\u30b3\u30fc\u30c9\u306e\u5fa9\u5143\u3001\u30c4\u30fc\u30eb\u51fa\u529b\u306e\u691c\u8a3c\u307e\u3067\u3092\u884c\u3044\u307e\u3059\u3002\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\t\u3055\u3089\u306b\u8a73\u3057\u304f\u2192\u3053\u3061\u3089\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0a9f034 e-flex e-con-boxed e-con e-parent\" data-id=\"0a9f034\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d15b32 elementor-widget elementor-widget-heading\" data-id=\"2d15b32\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u3092\u7406\u89e3\u3059\u308b\u30d0\u30ea\u30f3\u30c8\u3092\u898b\u629c\u304d\u3001\u89e3\u8aad\u3059\u308b<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1a5cdd5 elementor-widget elementor-widget-text-editor\" data-id=\"1a5cdd5\" data-element_type=\"widget\" data-e-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>SQLite\u3068\u30c7\u30b8\u30bf\u30eb\u30fb\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u3092\u3088\u308a\u6df1\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30b9\u30ad\u30eb\u306e1\u3064\u306f\u3001\u6b21\u306e\u3053\u3068\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <strong>\u53ef\u5909\u9577\u6574\u6570 (varints)<\/strong>.\u3053\u308c\u3089\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u6570\u5024\u306fSQLite\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u3044\u305f\u308b\u3068\u3053\u308d\u306b\u3042\u308a\u3001\u3067\u304d\u308b\u3060\u3051\u5c11\u306a\u3044\u30d0\u30a4\u30c8\u6570\u3067\u5024\u3092\u683c\u7d0d\u3059\u308b\u3053\u3068\u3067\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u7701\u30b9\u30da\u30fc\u30b9\u5316\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u4f55\u3092\u63a2\u305b\u3070\u3044\u3044\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u3068\u3001\u3053\u308c\u3092\u767a\u898b\u3057\u3066\u89e3\u8aad\u3059\u308b\u306e\u306f\u96e3\u3057\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u9806\u3092\u8ffd\u3063\u3066\u8aac\u660e\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-440d395 elementor-widget elementor-widget-heading\" data-id=\"440d395\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u3068\u306f\uff1f<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a4ead6 elementor-widget elementor-widget-text-editor\" data-id=\"0a4ead6\" data-element_type=\"widget\" data-e-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>varint\u306f\u6570\u5024\u3092\u683c\u7d0d\u3059\u308b\u7279\u6b8a\u306a\u65b9\u6cd5\u3067\u3001\u6570\u5024\u306e\u30b5\u30a4\u30ba\u306b\u3088\u3063\u3066\u4f7f\u7528\u3055\u308c\u308b\u30d0\u30a4\u30c8\u6570\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002\u56fa\u5b9a\u9577\u306e\u6574\u6570\uff08\u4f8b\u3048\u30704\u30d0\u30a4\u30c8\u30848\u30d0\u30a4\u30c8\uff09\u3068\u306f\u7570\u306a\u308a\u3001varint\u306f1\u30d0\u30a4\u30c8\u304b\u30899\u30d0\u30a4\u30c8\u307e\u3067\u5c0f\u3055\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u67d4\u8edf\u6027\u306b\u3088\u308a\u3001varint\u306f\u30b9\u30da\u30fc\u30b9\u52b9\u7387\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u89e3\u91c8\u306e\u96e3\u6613\u5ea6\u3082\u9ad8\u304f\u306a\u308a\u307e\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a4470c9 e-flex e-con-boxed e-con e-parent\" data-id=\"a4470c9\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b69e6a3 elementor-widget elementor-widget-heading\" data-id=\"b69e6a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u306f\u3069\u3053\u306b\u3044\u308b\uff1f<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1606c9a elementor-widget elementor-widget-text-editor\" data-id=\"1606c9a\" data-element_type=\"widget\" data-e-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>SQLite\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u3001\u30a8\u30f3\u30b3\u30fc\u30c9\u306bvarint\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\uff1a<\/p><ul><li>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30da\u30fc\u30b8\u306e\u30bb\u30eb\u307e\u305f\u306f\u30ec\u30b3\u30fc\u30c9\u306e\u9577\u3055\u3002<\/li><li>\u30ec\u30b3\u30fc\u30c9\u3092\u4e00\u610f\u306b\u8b58\u5225\u3059\u308b\u884cID\u3002<\/li><li>\u30ec\u30b3\u30fc\u30c9\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u5185\u306e\u30c7\u30fc\u30bf\u306e\u9577\u3055\u3002<\/li><li>\u305d\u306e\u4ed6\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u306b\u95a2\u9023\u3059\u308b\u69d8\u3005\u306a\u5024\u3002<\/li><\/ul>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-313b44c e-flex e-con-boxed e-con e-parent\" data-id=\"313b44c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7398cff elementor-widget elementor-widget-heading\" data-id=\"7398cff\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u3092\u8aad\u3080\u9375\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-364928d elementor-widget elementor-widget-text-editor\" data-id=\"364928d\" data-element_type=\"widget\" data-e-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>varint\u3092\u8aad\u307f\u53d6\u308b\u969b\u306b\u307e\u305a\u77e5\u3063\u3066\u304a\u304b\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u306f\u3001\u305d\u306e\u9577\u3055\u3092\u628a\u63e1\u3059\u308b\u65b9\u6cd5\u3067\u3042\u308b\u3002varint \u306e\u5404\u30d0\u30a4\u30c8\u306b\u306f <strong>\u30de\u30fc\u30ab\u30d3\u30c3\u30c8<\/strong> (\u6700\u4e0a\u4f4d\u30d3\u30c3\u30c8\u3001\u307e\u305f\u306fMSB\uff09\u306f\u3001\u540c\u3058varint\u306e\u4e00\u90e8\u3067\u3042\u308b\u5225\u306e\u30d0\u30a4\u30c8\u304c\u53f3\u5074\u306b\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u793a\u3057\u307e\u3059\uff1a<\/p><ul><li><strong>\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\u304c1\u306e\u5834\u5408<\/strong>\u6b21\u306e\u30d0\u30a4\u30c8\u3082varint\u306e\u4e00\u90e8\u3067\u3042\u308b\u3002<\/li><li><strong>\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\u304c0\u306e\u5834\u5408<\/strong>\u3053\u308c\u3067\u30d0\u30ea\u30f3\u30c8\u306f\u7d42\u308f\u308a\u3067\u3059\u3002<\/li><\/ul>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f2113ff e-flex e-con-boxed e-con e-parent\" data-id=\"f2113ff\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8b63438 elementor-widget elementor-widget-heading\" data-id=\"8b63438\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u306e\u9577\u3055\u3092\u89e3\u8aad\u3059\u308b2\u3064\u306e\u65b9\u6cd5<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32573a4 elementor-widget elementor-widget-text-editor\" data-id=\"32573a4\" data-element_type=\"widget\" data-e-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>varint\u306e\u9577\u3055\u3092\u77e5\u308b\u306b\u306f2\u3064\u306e\u65b9\u6cd5\u304c\u3042\u308b\uff1a\u9577\u3044\u65b9\u6cd5\uff082\u9032\u6570\u3092\u4f7f\u3046\uff09\u3068\u7c21\u5358\u306a\u65b9\u6cd5\uff0816\u9032\u6570\u3092\u4f7f\u3046\uff09\u3060\u3002\u4e21\u65b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3088\u3046\u3002<\/p><p><strong>\u9577\u3044\u9053\u306e\u308a\u30d0\u30a4\u30ca\u30ea\u30fc\u306e\u4f7f\u7528<\/strong><\/p><ol><li style=\"list-style-type: none;\"><ol><li>varint\u306e\u6700\u521d\u306e\u30d0\u30a4\u30c8\u304b\u3089\u59cb\u3081\u308b\u3002<\/li><li>\u30d0\u30a4\u30c8\u30922\u9032\u6570\u306b\u5909\u63db\u3059\u308b\u3002\u6700\u4e0a\u4f4d\u30d3\u30c3\u30c8\uff08\u4e00\u756a\u5de6\u306e\u30d3\u30c3\u30c8\uff09\u3092\u898b\u308b\u3002<ul><li>\u30d3\u30c3\u30c8\u304c1\u306e\u5834\u5408\u3001\u53f3\u5074\u306e\u30d0\u30a4\u30c8\u306fvarint\u306e\u4e00\u90e8\u3067\u3042\u308b\u3002<\/li><li>\u30d3\u30c3\u30c8\u304c0\u3067\u3042\u308c\u3070\u3001\u7d42\u4e86\u306b\u9054\u3057\u3066\u3044\u308b\u3002<\/li><\/ul><\/li><li>MSB\u304c0\u306e\u30d0\u30a4\u30c8\u304c\u898b\u3064\u304b\u308b\u307e\u3067\u3001\u5404\u30d0\u30a4\u30c8\u306b\u3064\u3044\u3066\u3053\u306e\u4f5c\u696d\u3092\u7e70\u308a\u8fd4\u3059\u3002<\/li><\/ol><\/li><\/ol><p><strong>\u4f8b<\/strong><\/p><ul><li>\u30d0\u30a4\u30c8\uff1a <code>0xC2<\/code> \u2192 \u30d0\u30a4\u30ca\u30ea\uff1a11000010 \u2192 MSB\uff1a1 \u2192 \u7d9a\u3051\u308b\u3002<\/li><li>\u30d0\u30a4\u30c8\uff1a <code>0x7F<\/code> \u2192 \u30d0\u30a4\u30ca\u30ea\uff1a01111111 \u2192 MSB\uff1a0 \u2192 \u3053\u3053\u3067\u30b9\u30c8\u30c3\u30d7\u3002<br \/><br \/><\/li><\/ul><p><strong>\u7c21\u5358\u306a\u65b9\u6cd5\u5de6\u30cb\u30d6\u30eb\u3092\u4f7f\u3046<\/strong><\/p><ol><li>\u5de6\u306e\u30cb\u30d6\u30eb\uff08\u30d0\u30a4\u30c8\u306e\u6700\u521d\u306e16\u9032\u6570\uff09\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/li><li>\u5de6\u30cb\u30d6\u30eb\u304c8\u4ee5\u4e0a\uff088\u30019\u3001A\u3001B\u3001C\u3001D\u3001E\u3001F\uff09\u306e\u5834\u5408\u3001\u6b21\u306e\u30d0\u30a4\u30c8\u306fvarint\u306e\u4e00\u90e8\u3068\u306a\u308b\u3002<\/li><li>\u5de6\u306e\u30cb\u30d6\u30eb\u304c7\u4ee5\u4e0b\uff080\u304b\u30897\uff09\u306a\u3089\u3001varint\u306e\u7d42\u7aef\u306b\u9054\u3057\u3066\u3044\u308b\u3002<br \/><br \/><\/li><\/ol><p><strong>\u306a\u305c\u3053\u308c\u304c\u6709\u52b9\u306a\u306e\u304b\uff1a<\/strong> \u5de6\u30cb\u30d6\u30eb\u304c8\u4ee5\u4e0a\u306fMSB\u304c1\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u5de6\u30cb\u30d6\u30eb\u304c7\u4ee5\u4e0b\u306fMSB\u304c0\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002<\/p><p><strong>\u4f8b<\/strong><\/p><ul><li>\u30d0\u30a4\u30c8\uff1a <code>0xC2<\/code> \u2192 \u5de6\u30cb\u30d6\u30ebC\uff088\u3088\u308a\u5927\u304d\u3044\uff09 \u2192 \u7d9a\u3051\u308b\u3002<\/li><li>\u30d0\u30a4\u30c8\uff1a <code>0x7F<\/code> \u2192 \u5de6\u30cb\u30d6\u30eb\uff1a7\uff088\u672a\u6e80\uff09 \u2192 \u3053\u3053\u3067\u30b9\u30c8\u30c3\u30d7\u3002<\/li><\/ul>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-e1dd116 e-flex e-con-boxed e-con e-parent\" data-id=\"e1dd116\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2820676 elementor-widget elementor-widget-image\" data-id=\"2820676\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"670\" height=\"387\" src=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Varint_in_Hex_03.png\" class=\"attachment-large size-large wp-image-2940\" alt=\"SQLite VarInt in hex view 03 \u2014 forensic analysis of variable-length integer encoding\" srcset=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Varint_in_Hex_03.png.webp 670w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Varint_in_Hex_03-300x173.png.webp 300w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Varint_in_Hex_03-600x347.png.webp 600w\" sizes=\"(max-width: 670px) 100vw, 670px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">varint\uff08\u8d64\u67a0\uff09\u306f\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u30fb\u30c6\u30fc\u30d6\u30eb\u306e\u9577\u3055\u3092\u793a\u3059\u3002<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32888b9 elementor-widget elementor-widget-heading\" data-id=\"32888b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u7d30\u80de\u9577\u306b\u304a\u3051\u308b\u30d0\u30ea\u30f3\u30c8\u306e\u7406\u89e3\uff1a\u5b9f\u4f8b<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c77a5d elementor-widget elementor-widget-text-editor\" data-id=\"6c77a5d\" data-element_type=\"widget\" data-e-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>\u30d0\u30ea\u30f3\u30c8\u306fSQLite\u3067 <strong>\u30bb\u30eb<\/strong> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30da\u30fc\u30b8\u306b\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u30bb\u30eb\u306b\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u30c6\u30fc\u30d6\u30eb\u30fb\u30ec\u30b3\u30fc\u30c9\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u3082\u306e\u304c\u683c\u7d0d\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30bb\u30eb\u306e\u6700\u521d\u306e\u30d0\u30a4\u30c8\u306b\u3088\u3063\u3066\u3001\u305d\u306e\u30bb\u30eb\u306e\u5927\u304d\u3055\u304c\u308f\u304b\u308b\u3002\u3053\u306e\u9577\u3055\u30a4\u30f3\u30b8\u30b1\u30fc\u30bf\u306f\u305d\u308c\u81ea\u4f53\u304c varint \u3067\u3042\u308a\u3001\u9577\u3055\u306f 1 \u30d0\u30a4\u30c8\u304b\u3089 9 \u30d0\u30a4\u30c8\u306e\u7bc4\u56f2\u3067\u3042\u308b\u3002<\/p><h4><strong>\u5b9f\u969b\u306e\u4f8bWAL\u30d5\u30a1\u30a4\u30eb<\/strong><\/h4><p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u30bb\u30eb\u306b <strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u30c6\u30fc\u30d6\u30eb<\/strong>.\u30bb\u30eb\u306e\u6700\u521d\u306e\u30d0\u30a4\u30c8\u306f <code>0x81<\/code>2\u30d0\u30a4\u30c8\u306evarint\u3092\u793a\u3059\u3002<\/p><ul><li><strong>\u5185\u8a33<\/strong><ul><li>\u30d0\u30a4\u30c81\uff1a <code>0x81<\/code> \u2192 \u30d0\u30a4\u30ca\u30ea\uff1a10000001 \u2192 \u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\uff1a1 \u2192 \u7d99\u7d9a<\/li><li>\u30d0\u30a4\u30c82\uff1a <code>0x07<\/code> \u2192 \u30d0\u30a4\u30ca\u30ea\uff1a 00000111 \u2192 \u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c80 \u2192 \u30b9\u30c8\u30c3\u30d7<\/li><\/ul><\/li><\/ul><h4><strong>\u30c7\u30b3\u30fc\u30c9<\/strong><strong>\u30d0\u30ea\u30f3\u30c8<\/strong><\/h4><p>\u3053\u3053\u3067\u3001varint\u3092\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u5358\u7d14\u306b\u5024\u3092 <code>0x8107<\/code> \u3092\u6574\u6570\u306b\u5909\u63db\u3059\u308b\u3068\u3001\u8aa4\u3063\u306633,031\u3068\u3044\u3046\u5de8\u5927\u306a\u8a08\u7b97\u3092\u3057\u3066\u3057\u307e\u3046\u3002<\/p><p><strong>\u306a\u305c\u3067\u3059\u304b\uff1f<\/strong><br \/>\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\u306fvarint\u306e\u5b9f\u969b\u306e\u5024\u306b\u306f\u5bc4\u4e0e\u3057\u306a\u3044\u3002varint\u3092\u6b63\u3057\u304f\u30c7\u30b3\u30fc\u30c9\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002 <strong>\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\u3092\u5265\u304c\u3059<\/strong> \u305d\u3057\u3066\u3001\u30d0\u30a4\u30ca\u30ea\u8868\u73fe\u306e\u610f\u5473\u306e\u3042\u308b\u90e8\u5206\u3060\u3051\u3092\u89e3\u91c8\u3059\u308b\u3002\u305d\u306e\u65b9\u6cd5\u306f\u3053\u3046\u3060\uff1a<\/p><ul><li><strong>\u30c7\u30b3\u30fc\u30c9<\/strong><ul><li>\u30de\u30fc\u30ab\u30fc\u30d3\u30c3\u30c8\u3092\u524a\u9664\u3059\u308b\uff1a0000001\u30680000111\u3002<\/li><li>2\u3064\u306e\u30bb\u30d7\u30c6\u30c3\u30c8\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\uff1a00000000 10000111 \u2192 10\u9032\u6570\uff1a135.<\/li><\/ul><\/li><li>\u30bb\u30eb\u306e\u9577\u3055\u306f135\u30d0\u30a4\u30c8\u3067\u3042\u308b\uff08varint\u3068ROWID\u3092\u9664\u304f\uff09\u3002<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae9848d elementor-widget elementor-widget-video\" data-id=\"ae9848d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=5Gr4LtE-_iE&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7df1e43 e-flex e-con-boxed e-con e-parent\" data-id=\"7df1e43\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f2f28f2 elementor-cta--layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"f2f28f2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"https:\/\/elusivedata.io\/ja\/sqlite%e3%83%95%e3%82%a9%e3%83%ac%e3%83%b3%e3%82%b8%e3%83%83%e3%82%af\/?v=efad7abb323e\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tSQLite Forensics\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3067\u306f\u3001\u30d0\u30ea\u30f3\u30c8\u3001\u30d5\u30ea\u30fc\u30ea\u30b9\u30c8\u3001\u305d\u306e\u4ed6\u306e\u5185\u90e8\u69cb\u9020\u3092\u89e3\u8aad\u3059\u308b\u305f\u3081\u306e\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u5b66\u3076\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\t\u3055\u3089\u306b\u8a73\u3057\u304f\u2192\u3053\u3061\u3089\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa75970 elementor-widget elementor-widget-heading\" data-id=\"fa75970\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30d0\u30ea\u30f3\u30c8\u8a08\u7b97\u6a5f\u306b\u3088\u308b\u52b9\u7387\u5316<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-52213a4 elementor-widget elementor-widget-text-editor\" data-id=\"52213a4\" data-element_type=\"widget\" data-e-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>\u306b\u3064\u3044\u3066 <a href=\"https:\/\/elusivedata.io\/ja\/%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88%e8%a8%88%e7%ae%97%e6%a9%9f\/?v=efad7abb323e\">\u30d0\u30ea\u30f3\u30c8\u8a08\u7b97\u6a5f<\/a> \u3092\u4f7f\u3046\u3068\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u7c21\u5358\u306b\u306a\u308b\u300216\u9032\u6570\u5024\uff08\u4f8b\uff1a8107\uff09\u3092\u5165\u529b\u3059\u308b\u3068\u3001varint\u3092\u3059\u3070\u3084\u304f\u30c7\u30b3\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002\u4e0a\u8a18\u306e\u4f8b\u3067\u306f\u3001\u96fb\u5353\u306f135\u3092\u8fd4\u3057\u3001\u9577\u3055\u3092\u78ba\u8a8d\u3057\u307e\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-98af75a e-flex e-con-boxed e-con e-parent\" data-id=\"98af75a\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-afaeca0 elementor-widget elementor-widget-image\" data-id=\"afaeca0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"402\" height=\"412\" src=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Calculator_1.png\" class=\"attachment-large size-large wp-image-2951\" alt=\"Calculator for SQLite forensics \u2014 forensic hex value calculation and conversion tool\" srcset=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Calculator_1.png.webp 402w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Calculator_1-293x300.png.webp 293w\" sizes=\"(max-width: 402px) 100vw, 402px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">varint 0x8107\u309210\u9032\u6570\u306e135\u306b\u5909\u63db\u3059\u308b<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f3ada8e e-flex e-con-boxed e-con e-parent\" data-id=\"f3ada8e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8882a6a elementor-widget elementor-widget-heading\" data-id=\"8882a6a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">\u30ec\u30b3\u30fc\u30c9\u30d8\u30c3\u30c0\u30fc\u306e\u30d0\u30ea\u30f3\u30c8\u306e\u30c7\u30b3\u30fc\u30c9<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-24e5c3b elementor-widget elementor-widget-text-editor\" data-id=\"24e5c3b\" data-element_type=\"widget\" data-e-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>SQLite\u3067\u306f\u3001\u30ec\u30b3\u30fc\u30c9\u30d8\u30c3\u30c0\u306fvarint\u3092\u4f7f\u3063\u3066\u5b9a\u7fa9\u3057\u307e\u3059\uff1a<\/p><ol><li><strong>\u9577\u3055\uff1a<\/strong> \u3069\u308c\u3060\u3051\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u3080\u304b\u3002<\/li><li><strong>\u30bf\u30a4\u30d7<\/strong> \u30c7\u30fc\u30bf\u306e\u89e3\u91c8\u65b9\u6cd5\uff08\u6574\u6570\u3001\u6587\u5b57\u5217\u3001BLOB\u306a\u3069\uff09\u3002<\/li><\/ol>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-93e73f3 e-flex e-con-boxed e-con e-parent\" data-id=\"93e73f3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e42e020 elementor-widget elementor-widget-image\" data-id=\"e42e020\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"670\" height=\"387\" src=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/record-header-string-length-varint.png\" class=\"attachment-large size-large wp-image-2955\" alt=\"SQLite record header string length VarInt \u2014 forensic analysis of text field encoding\" srcset=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/record-header-string-length-varint.png.webp 670w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/record-header-string-length-varint-300x173.png.webp 300w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/record-header-string-length-varint-600x347.png.webp 600w\" sizes=\"(max-width: 670px) 100vw, 670px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">\u3053\u306e\u30ec\u30b3\u30fc\u30c9\u30d8\u30c3\u30c0\u5185\u306eVarint 0x25\u306f\u3001\u30da\u30a4\u30ed\u30fc\u30c9\u5185\u306e\u6587\u5b57\u5217\u306e\u9577\u3055\u3092\u793a\u3059\u3002<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2c705b3 e-flex e-con-boxed e-con e-parent\" data-id=\"2c705b3\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2407d45 elementor-widget elementor-widget-text-editor\" data-id=\"2407d45\" data-element_type=\"widget\" data-e-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<h4><strong>\u4f8b\u6587\u5b57\u5217\u306e\u9577\u3055<\/strong><\/h4>\n\u30ec\u30b3\u30fc\u30c9\u30d8\u30c3\u30c0\u306evarint\u3092\u30c7\u30b3\u30fc\u30c9\u3057\u3066\u307f\u3088\u3046\uff1a\n<ul>\n \t<li><strong>\u30d0\u30ea\u30f3\u30c8<\/strong> <code>0x25<\/code>\n<ul>\n \t<li>\u5de6\u30cb\u30d6\u30eb\uff1a2\uff088\u672a\u6e80\uff09\u21921\u30d0\u30a4\u30c8varint\u3002<\/li>\n \t<li>10\u9032\u6570\uff1a37\u3002<\/li>\n<\/ul>\n<\/li>\n \t<li><strong>\u30da\u30a4\u30ed\u30fc\u30c9\uff1a<\/strong> \u6587\u5b57\u5217\u306e\u9577\u3055 = 12 \u30d0\u30a4\u30c8 (+97444455667)\u3002<\/li>\n<\/ul>\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c99b93d e-flex e-con-boxed e-con e-parent\" data-id=\"c99b93d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-f8fbf4b elementor-widget elementor-widget-image\" data-id=\"f8fbf4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"295\" height=\"300\" src=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38-295x300.png\" class=\"attachment-medium size-medium wp-image-8526\" alt=\"SQLite VarInt Calculator tool \u2014 decode variable-length integers in forensic analysis\" srcset=\"https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38-295x300.png.webp 295w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38-768x781.png.webp 768w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38-12x12.png.webp 12w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38-600x610.png.webp 600w, https:\/\/elusivedata.io\/wp-content\/uploads\/2025\/01\/Skarmavbild-2025-06-04-kl.-16.33.38.png.webp 812w\" sizes=\"(max-width: 295px) 100vw, 295px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Varint\u96fb\u5353\u306fvarint\u3092\u6587\u5b57\u5217\u3068BLOB\u306e\u9577\u3055\u306b\u5909\u63db\u3057\u307e\u3059\u3002<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\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\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7a6e38f e-flex e-con-boxed e-con e-parent\" data-id=\"7a6e38f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ea4454 elementor-widget elementor-widget-heading\" data-id=\"7ea4454\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u9589\u4f1a\u306e\u8f9e<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a55de6 elementor-widget elementor-widget-text-editor\" data-id=\"6a55de6\" data-element_type=\"widget\" data-e-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>\u30d0\u30ea\u30f3\u30c8\u3092\u7406\u89e3\u3057\u89e3\u8aad\u3059\u308b\u3053\u3068\u306f\u3001SQLite\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u6271\u3046\u30c7\u30b8\u30bf\u30eb\u30fb\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u8abf\u67fb\u54e1\u306b\u3068\u3063\u3066\u57fa\u790e\u3068\u306a\u308b\u30b9\u30ad\u30eb\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u6574\u6570\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u89e3\u91c8\u3057\u3001\u30bb\u30eb\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3057\u3001\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u5fa9\u5143\u3059\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u304c\u3042\u308b\u3002 <a href=\"https:\/\/elusivedata.io\/ja\/%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88%e8%a8%88%e7%ae%97%e6%a9%9f\/?v=efad7abb323e\">\u30d0\u30ea\u30f3\u30c8\u8a08\u7b97\u6a5f\u3001<\/a> \u304c\u3088\u308a\u8eab\u8fd1\u306b\u306a\u308a\u3001\u6cd5\u533b\u5b66\u8005\u306f\u30c7\u30b8\u30bf\u30eb\u8a3c\u62e0\u306b\u96a0\u3055\u308c\u305f\u771f\u5b9f\u306e\u89e3\u660e\u306b\u5c02\u5ff5\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002varints\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u306f\u6280\u8853\u7684\u306a\u30b9\u30ad\u30eb\u4ee5\u4e0a\u306e\u3082\u306e\u3067\u3042\u308a\u3001\u635c\u67fb\u7d50\u679c\u306b\u76f4\u63a5\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u91cd\u8981\u306a\u80fd\u529b\u306a\u306e\u3067\u3059\u3002<\/p>\n<p>\u8a73\u7d30\u306f\u3053\u3061\u3089\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/elusivedata.io\/ja\/%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88%e8%a8%88%e7%ae%97%e6%a9%9f\/?v=efad7abb323e\">\u30d0\u30ea\u30f3\u30c8\u8a08\u7b97\u6a5f <\/a>\u3053\u3053\u306b\u3042\u308b\uff1a<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4cf2b5 elementor-widget elementor-widget-button\" data-id=\"b4cf2b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"https:\/\/elusivedata.io\/ja\/%e3%83%90%e3%83%aa%e3%83%b3%e3%83%88%e8%a8%88%e7%ae%97%e6%a9%9f\/?v=efad7abb323e\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Download VarInt\u96fb\u5353<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b6082e2 elementor-widget elementor-widget-heading\" data-id=\"b6082e2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u3053\u3061\u3089\u306b\u3082\u3054\u8208\u5473\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-62b1289 elementor-widget elementor-widget-video\" data-id=\"62b1289\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=QFn63mQ5_gI&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7413dc6 elementor-cta--layout-image-above elementor-cta--skin-classic elementor-animated-content elementor-bg-transform elementor-bg-transform-zoom-in elementor-widget elementor-widget-call-to-action\" data-id=\"7413dc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"call-to-action.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<a class=\"elementor-cta\" href=\"https:\/\/elusivedata.io\/ja\/ed-sqlite-visualizer\/?v=efad7abb323e\">\n\t\t\t\t\t\t\t<div class=\"elementor-cta__content\">\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<h2 class=\"elementor-cta__title elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\tSQLite Visualizer\u3002SQLite\u3092\u63a2\u7d22\u3059\u308b\u5168\u304f\u65b0\u3057\u3044\u65b9\u6cd5\u3002\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__description elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t\t\u8fd1\u65e5\u30ea\u30ea\u30fc\u30b9\u4e88\u5b9a\u306eED SQLite Visualizer\u3092\u4f7f\u3048\u3070\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5185\u90e8\u3092\u898b\u305f\u308a\u3001\u96a0\u3055\u308c\u305f\u30ec\u30b3\u30fc\u30c9\u3092\u5fa9\u5143\u3057\u305f\u308a\u3001\u70b9\u3068\u70b9\u3092\u3053\u308c\u307e\u3067\u4ee5\u4e0a\u306b\u901f\u304f\u3064\u306a\u3052\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3059\u3067\u306bSQLite\u306e\u30d5\u30eb\u30b3\u30fc\u30b9\u3067\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u307e\u3082\u306a\u304f\u8ab0\u3067\u3082\u4f7f\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-cta__button-wrapper elementor-cta__content-item elementor-content-item\">\n\t\t\t\t\t<span class=\"elementor-cta__button elementor-button elementor-size-\">\n\t\t\t\t\t\t\u4eca\u5f8c\u306e\u4e88\u5b9a\u3092\u898b\u308b\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Varint\u306fSQLite\u306e\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u3067\u3042\u308a\u3001\u30c7\u30b8\u30bf\u30eb\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u8abf\u67fb\u5b98\u304c\u91cd\u8981\u306a\u8a3c\u62e0\u3092\u767a\u898b\u3059\u308b\u305f\u3081\u306b\u89e3\u8aad\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30b3\u30f3\u30d1\u30af\u30c8\u306a\u5f62\u5f0f\u3067\u5024\u3092\u30a8\u30f3\u30b3\u30fc\u30c9\u3057\u307e\u3059\u3002\u3053\u306e\u30d6\u30ed\u30b0\u3067\u306f\u3001\u30c7\u30b3\u30fc\u30c9\u30d7\u30ed\u30bb\u30b9\u3001\u5b9f\u969b\u306e\u4f8b\u3001\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u5206\u6790\u3092\u7c21\u7d20\u5316\u3059\u308b Varint Calculator \u306e\u3088\u3046\u306a\u30c4\u30fc\u30eb\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>","protected":false},"author":1,"featured_media":2926,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","footnotes":""},"categories":[21],"tags":[],"class_list":["post-2925","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mobile-forensics"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Decoding Varints: A Critical Skill in SQLite Forensics - Elusive Data<\/title>\n<meta name=\"description\" content=\"Decoding variable-length integers (Varints) is a critical skill in SQLite forensics. Learn how Varints work, where they appear in mobile app databases, and how to decode them manually.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/elusivedata.io\/ja\/sqlite\u30d5\u30a9\u30ec\u30f3\u30b8\u30c3\u30af\u306e\u91cd\u8981\u306a\u30b9\u30ad\u30eb\u3067\u3042\u308b\u30d0\u30ea\u30f3\u30c8\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Decoding Varints: A Critical Skill in SQLite Forensics\" \/>\n<meta property=\"og:description\" content=\"Decoding variable-length integers (Varints) is a critical skill in SQLite forensics. 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