{"id":2177,"date":"2025-03-18T13:04:02","date_gmt":"2025-03-18T13:04:02","guid":{"rendered":"https:\/\/ttalesinteractive.com\/?page_id=2177"},"modified":"2025-07-22T17:03:13","modified_gmt":"2025-07-22T17:03:13","slug":"quagmire-iii-not-double-vigenere","status":"publish","type":"page","link":"https:\/\/ttalesinteractive.com\/?page_id=2177","title":{"rendered":"Quagmire III Not Vigen\u00e8re"},"content":{"rendered":"\n<p>TL;DR: Vigen\u00e8re uses a fixed alphabetical key of ABCDEFG&#8230; QuagmireIII uses an altered alphabetical key. Since KRYPTOSABDEFG&#8230; is the running key it isn&#8217;t Vigen\u00e8re <\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Overview: <\/strong>This lays out step by step how K1-K2 and the Cyrillic Projector were solved with Quagmire III not Double Vigen\u00e8re. This is an incredibly common point of misinformation and it is very important to recognize the differences. You can find more information about the&nbsp;<a href=\"https:\/\/ttalesinteractive.com\/?page_id=2175\">corrected Kryptos solutions here.<\/a><\/p>\n\n\n\n<p><strong>Why is Kryptos K1-K2 Actually Quagmire III (and not Double Vigen\u00e8re)?<\/strong><\/p>\n\n\n\n<p><strong>1. Understanding the difference clearly:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Double Vigen\u00e8re<\/strong> uses two keys in a straightforward, sequential manner. You decrypt the ciphertext with one key first, and then decrypt that result again using a second key. Each stage is independent, simple, and linear.<br><\/li>\n\n\n\n<li><strong>Quagmire III<\/strong> uses two keys differently:<br>\n<ul class=\"wp-block-list\">\n<li>One key (<strong>Alphabet Key<\/strong>) rearranges your entire alphabet.<\/li>\n\n\n\n<li>The other key (<strong>Running Key<\/strong>) is used repeatedly to select different &#8220;rows&#8221; of the rearranged alphabet for every single letter. It makes the cipher dynamic\u2014each letter can have a unique shifting logic.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p><strong>2. Why the confusion?<\/strong><\/p>\n\n\n\n<p>The confusion comes from the fact that both ciphers use two keys. The initial documents and commonly cited solutions mistakenly described the Kryptos solution as &#8220;Double Vigen\u00e8re&#8221; because it seemed logical (two keys, two decryptions). But here&#8217;s the key detail they missed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Double Vigen\u00e8re<\/strong> would produce nonsense from the Kryptos K1 and K2 ciphertext.<\/li>\n\n\n\n<li><strong>Quagmire III<\/strong>, with its dynamic row selection and keyed alphabet, correctly produces the known, meaningful plaintext solution.<\/li>\n<\/ul>\n\n\n\n<p><strong>3. Mathematical and Historical Context:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The creator of Kryptos (Jim Sanborn) and cryptographer Ed Scheidt explicitly designed complexity into Kryptos by using uncommon cipher techniques. Quagmire III, being less common than Vigen\u00e8re, adds precisely the complexity and nuance they intended.<\/li>\n\n\n\n<li>Mathematically, the shifting logic in Quagmire III provides exactly the dynamic, varying encryption intended by the puzzle designers\u2014making it significantly more secure and interesting than simple double Vigen\u00e8re.<\/li>\n<\/ul>\n\n\n\n<p><strong>4. Outputs Using Double Vigen\u00e8re<\/strong> <strong>[Pure garbage]<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>K1: FVLIKEPXIOWEZUWXTROEWAPHRZARDYIUUUPRLVJPNDDVLHABHBPLYPTFIDBVERA<\/li>\n\n\n\n<li>K2: QHJAZXDPXJLCWNHKUKLYZTSSUFOHQAKPL&#8230; (random, nonsensical text)<\/li>\n<\/ul>\n\n\n\n<p><strong>In short:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Double Vigen\u00e8re simply doesn\u2019t yield meaningful results.<\/li>\n\n\n\n<li>Quagmire III matches perfectly the officially confirmed plaintext solution and aligns with historical intent and complexity of the Kryptos sculpture.<\/li>\n<\/ul>\n\n\n\n<p>Thus, Kryptos K1-K2 is undeniably solved using <strong>Quagmire III<\/strong>, not Double Vigen\u00e8re.<\/p>\n\n\n\n<p><strong>Important Note: <\/strong><\/p>\n\n\n\n<p>In theory it is possible for a Quagmire III and Double Vigen\u00e8re to produce the same output. The specific here is the words &#8216;in theory&#8217; I have not found a proper example of this being done yet. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>TL;DR: Vigen\u00e8re uses a fixed alphabetical key of ABCDEFG&#8230; QuagmireIII uses an altered alphabetical key. Since KRYPTOSABDEFG&#8230; is the running key it isn&#8217;t Vigen\u00e8re Overview: This lays out step by step how K1-K2 and the Cyrillic Projector were solved with Quagmire III not Double Vigen\u00e8re. This is an incredibly common point of misinformation and it [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2177","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Quagmire III Not Vigen\u00e8re - Tenebrous Tales Interactive<\/title>\n<meta name=\"description\" content=\"Tenebrous Tales Interactive - Quagmire III Not Vigen\u00e8re\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ttalesinteractive.com\/?page_id=2177\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quagmire III Not Vigen\u00e8re - 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