{"version":"1.0","provider_name":"Edexcel iGCSE Computer Science","provider_url":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science","author_name":"learnlearnadmin","author_url":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/author\/learnlearnadmin\/","title":"Vigenere Cipher - Edexcel iGCSE Computer Science","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"1qgrSAz3Mm\"><a href=\"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/vigenere-cipher\/\">Vigenere Cipher<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/vigenere-cipher\/embed\/#?secret=1qgrSAz3Mm\" width=\"600\" height=\"338\" title=\"&#8220;Vigenere Cipher&#8221; &#8212; Edexcel iGCSE Computer Science\" data-secret=\"1qgrSAz3Mm\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/*! This file is auto-generated *\/\n!function(c,d){\"use strict\";var e=!1,o=!1;if(d.querySelector)if(c.addEventListener)e=!0;if(c.wp=c.wp||{},c.wp.receiveEmbedMessage);else if(c.wp.receiveEmbedMessage=function(e){var t=e.data;if(!t);else if(!(t.secret||t.message||t.value));else if(\/[^a-zA-Z0-9]\/.test(t.secret));else{for(var r,s,a,i=d.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),n=d.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),o=new RegExp(\"^https?:$\",\"i\"),l=0;l<n.length;l++)n[l].style.display=\"none\";for(l=0;l<i.length;l++)if(r=i[l],e.source!==r.contentWindow);else{if(r.removeAttribute(\"style\"),\"height\"===t.message){if(1e3<(s=parseInt(t.value,10)))s=1e3;else if(~~s<200)s=200;r.height=s}if(\"link\"===t.message)if(s=d.createElement(\"a\"),a=d.createElement(\"a\"),s.href=r.getAttribute(\"src\"),a.href=t.value,!o.test(a.protocol));else if(a.host===s.host)if(d.activeElement===r)c.top.location.href=t.value}}},e)c.addEventListener(\"message\",c.wp.receiveEmbedMessage,!1),d.addEventListener(\"DOMContentLoaded\",t,!1),c.addEventListener(\"load\",t,!1);function t(){if(o);else{o=!0;for(var e,t,r,s=-1!==navigator.appVersion.indexOf(\"MSIE 10\"),a=!!navigator.userAgent.match(\/Trident.*rv:11\\.\/),i=d.querySelectorAll(\"iframe.wp-embedded-content\"),n=0;n<i.length;n++){if(!(r=(t=i[n]).getAttribute(\"data-secret\")))r=Math.random().toString(36).substr(2,10),t.src+=\"#?secret=\"+r,t.setAttribute(\"data-secret\",r);if(s||a)(e=t.cloneNode(!0)).removeAttribute(\"security\"),t.parentNode.replaceChild(e,t);t.contentWindow.postMessage({message:\"ready\",secret:r},\"*\")}}}}(window,document);\n<\/script>\n","description":"Vigen\u00e8re Cipher The Vigen\u00e8re cipher is a polyalphabetic substitution cipher that was developed in the 16th century by a French cryptographer named Blaise de Vigen\u00e8re. It is named after him due to his contribution to the development and popularization of the cipher. Blaise de Vigen\u00e8re enhanced the earlier Alberti cipher, invented by Leon Battista Alberti&hellip;&nbsp;Read More &raquo;","thumbnail_url":"https:\/\/learnlearn.uk\/edexcel-igcse-computer-science\/wp-content\/uploads\/sites\/27\/2023\/06\/Vigenere.jpg"}