{"id":18176,"date":"2015-05-20T09:55:51","date_gmt":"2015-05-20T13:55:51","guid":{"rendered":"https:\/\/nuxx.net\/blog\/?p=18176"},"modified":"2015-05-22T13:19:21","modified_gmt":"2015-05-22T17:19:21","slug":"bit-field-for-internet-explorer-11-security-protocol-options","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2015\/05\/20\/bit-field-for-internet-explorer-11-security-protocol-options\/","title":{"rendered":"Bit Field for Internet Explorer 11 Security Protocol Options"},"content":{"rendered":"<p>In Windows \/ Internet Explorer the options for different security protocols (eg: TLS 1.2, SSL 3.0, etc) are stored in <code>HKEY_CURRENT_USER\\Sofware\\Microsoft\\Windows\\CurrentVersion\\Internet Settings|SecureProtocols<\/code> using a <a href=\"https:\/\/en.wikipedia.org\/wiki\/Bit_field\">bit field<\/a>. I wasn&#8217;t having much luck finding the specific values documented, only <a href=\"http:\/\/blogs.technet.com\/b\/iede\/archive\/2010\/09\/27\/as-59-63-ssl-2-0-ssl-3-0-tls-1-0-tls-1-1-tls-1-2-verwenden.aspx\">this German TechNet blog post detailing the resulting settings<\/a>. So, I made my own. Here it is in C format:<\/p>\n<p style=\"padding-left: 30px;\"><code>\/* HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings|SecureProtocols\u00a0<\/code><code>for different SSL\/TLS settings. *\/<\/code><\/p>\n<p style=\"padding-left: 30px;\"><code>#define SSL_2.0 8 \/* 000000001000 *\/<\/code><br \/>\n<code>#define SSL_3.0 32 \/* 000000100000 *\/<\/code><br \/>\n<code>#define TLS_1.0 128 \/* 000010000000 *\/<\/code><br \/>\n<code>#define TLS_1.1 512 \/* 001000000000 *\/<\/code><br \/>\n<code>#define TLS_1.2 2014 \/* 100000000000 *\/<\/code><\/p>\n<p>This also applies to Internet Explorer 9, but I haven&#8217;t checked other versions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In Windows \/ Internet Explorer the options for different security protocols (eg: TLS 1.2, SSL 3.0, etc) are stored in HKEY_CURRENT_USER\\Sofware\\Microsoft\\Windows\\CurrentVersion\\Internet Settings|SecureProtocols using a bit&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"https:\/\/nuxx.net\/blog\/2015\/05\/20\/bit-field-for-internet-explorer-11-security-protocol-options\/\">Continue reading<span class=\"screen-reader-text\">Bit Field for Internet Explorer 11 Security Protocol Options<\/span><\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-18176","post","type-post","status-publish","format-standard","hentry","category-computers","entry"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18176","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=18176"}],"version-history":[{"count":5,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18176\/revisions"}],"predecessor-version":[{"id":18184,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/18176\/revisions\/18184"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=18176"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=18176"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=18176"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}