{"id":90644,"date":"2025-11-04T10:00:51","date_gmt":"2025-11-04T04:30:51","guid":{"rendered":"https:\/\/www.seminarsonly.com\/news\/?p=90644"},"modified":"2025-11-04T10:31:12","modified_gmt":"2025-11-04T05:01:12","slug":"symmetric-key-derivation-function-version-kdfv1-is-invalid-update-the-device-for-the-latest-updates","status":"publish","type":"post","link":"https:\/\/seminarsonly.com\/news\/symmetric-key-derivation-function-version-kdfv1-is-invalid-update-the-device-for-the-latest-updates\/","title":{"rendered":"Symmetric Key Derivation Function Version &#8216;KDFV1&#8217; Is Invalid. Update The Device for the Latest Updates"},"content":{"rendered":"<h3 data-start=\"0\" data-end=\"18\"><span style=\"color: #008000;\"><em>The error message: <\/em><\/span><em style=\"color: #008000; font-size: 16px;\"><strong data-start=\"22\" data-end=\"130\">&#8220;Symmetric Key Derivation Function Version &#8216;KDFV1&#8217; Is Invalid. Update The Device for the Latest Updates&#8221; <\/strong><\/em><span style=\"color: #008000;\"><em>means that the device or system you&#8217;re working with is trying to use an outdated or unsupported key derivation function\u2014<strong data-start=\"252\" data-end=\"261\">KDFV1<\/strong>, which is no longer considered secure or compatible with current cryptographic standards.<\/em><\/span><\/h3>\n<h2 data-start=\"353\" data-end=\"372\"><span style=\"color: #800000;\">What This Means<\/span><\/h2>\n<ul data-start=\"373\" data-end=\"760\">\n<li data-start=\"373\" data-end=\"501\">\n<p data-start=\"375\" data-end=\"501\"><strong data-start=\"375\" data-end=\"384\">KDFV1<\/strong> refers to a version of a <strong data-start=\"410\" data-end=\"437\">Key Derivation Function<\/strong> (KDF) used to generate cryptographic keys from a shared secret.<\/p>\n<\/li>\n<li data-start=\"502\" data-end=\"626\">\n<p data-start=\"504\" data-end=\"626\">It has likely been deprecated in favor of more secure or standardized versions such as <strong data-start=\"591\" data-end=\"600\">KDFv2<\/strong>, <strong data-start=\"602\" data-end=\"610\">HKDF<\/strong>, or <strong data-start=\"615\" data-end=\"625\">PBKDF2<\/strong><\/p>\n<\/li>\n<li data-start=\"627\" data-end=\"760\">\n<p data-start=\"629\" data-end=\"760\">Your device\/software is not compatible with the current security policies of the system or network it&#8217;s trying to communicate with.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"762\" data-end=\"765\" \/>\n<h2 data-start=\"767\" data-end=\"789\"><span style=\"color: #800000;\">What You Should Do<\/span><\/h2>\n<h3 data-start=\"791\" data-end=\"832\"><span style=\"color: #000080;\">\u2705 1. <strong data-start=\"801\" data-end=\"832\">Update Your Device\/Software<\/strong><\/span><\/h3>\n<ul data-start=\"833\" data-end=\"1086\">\n<li data-start=\"833\" data-end=\"1086\">\n<p data-start=\"835\" data-end=\"922\">This is the most important step. Check for firmware or software updates for the device<\/p>\n<ul data-start=\"925\" data-end=\"1086\">\n<li data-start=\"925\" data-end=\"1086\">\n<p data-start=\"927\" data-end=\"1086\">For example, if it&#8217;s a <strong data-start=\"950\" data-end=\"960\">router<\/strong>, <strong data-start=\"962\" data-end=\"976\">IoT device<\/strong>, <strong data-start=\"978\" data-end=\"992\">smartphone<\/strong>, or <strong data-start=\"997\" data-end=\"1016\">security module<\/strong>, visit the manufacturer&#8217;s website or use the built-in update feature.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 data-start=\"1088\" data-end=\"1127\"><span style=\"color: #000080;\">\u2705 2. <strong data-start=\"1098\" data-end=\"1127\">Check Compatibility Notes<\/strong><\/span><\/h3>\n<ul data-start=\"1128\" data-end=\"1346\">\n<li data-start=\"1128\" data-end=\"1249\">\n<p data-start=\"1130\" data-end=\"1249\">Some systems explicitly <strong data-start=\"1154\" data-end=\"1194\">block legacy cryptographic protocols<\/strong> for security compliance (e.g., FIPS, NIST guidelines).<\/p>\n<\/li>\n<li data-start=\"1250\" data-end=\"1346\">\n<p data-start=\"1252\" data-end=\"1346\">If you&#8217;re integrating with a secure API or VPN, ensure your software supports <strong data-start=\"1330\" data-end=\"1345\">modern KDFs<\/strong>.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1348\" data-end=\"1389\"><span style=\"color: #000080;\">\u2705 3. <strong data-start=\"1358\" data-end=\"1389\">Contact Support (If Needed)<\/strong><\/span><\/h3>\n<ul data-start=\"1390\" data-end=\"1647\">\n<li data-start=\"1390\" data-end=\"1647\">\n<p data-start=\"1392\" data-end=\"1538\">If it&#8217;s a proprietary system (like industrial equipment or enterprise hardware), reach out to the vendor or support team and reference this error.<\/p>\n<ul data-start=\"1541\" data-end=\"1647\">\n<li data-start=\"1541\" data-end=\"1647\">\n<p data-start=\"1543\" data-end=\"1647\">Let them know the device is trying to use <strong data-start=\"1585\" data-end=\"1594\">KDFV1<\/strong> and ask if a patch or firmware upgrade is available.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3 data-start=\"1649\" data-end=\"1693\"><span style=\"color: #000080;\">\u2705 4. <strong data-start=\"1659\" data-end=\"1693\">Developer Note (if applicable)<\/strong><\/span><\/h3>\n<p data-start=\"1694\" data-end=\"1775\">If you&#8217;re a developer and seeing this during integration or encryption key setup:<\/p>\n<ul data-start=\"1776\" data-end=\"1920\">\n<li data-start=\"1776\" data-end=\"1920\">\n<p data-start=\"1778\" data-end=\"1826\">Replace usage of <code data-start=\"1795\" data-end=\"1802\">KDFV1<\/code> with a modern KDF like:<\/p>\n<ul data-start=\"1829\" data-end=\"1920\">\n<li data-start=\"1829\" data-end=\"1852\">\n<p data-start=\"1831\" data-end=\"1852\"><strong data-start=\"1831\" data-end=\"1839\">HKDF<\/strong> (HMAC-based)<\/p>\n<\/li>\n<li data-start=\"1855\" data-end=\"1867\">\n<p data-start=\"1857\" data-end=\"1867\"><strong data-start=\"1857\" data-end=\"1867\">PBKDF2<\/strong><\/p>\n<\/li>\n<li data-start=\"1870\" data-end=\"1882\">\n<p data-start=\"1872\" data-end=\"1882\"><strong data-start=\"1872\" data-end=\"1882\">scrypt<\/strong><\/p>\n<\/li>\n<li data-start=\"1885\" data-end=\"1920\">\n<p data-start=\"1887\" data-end=\"1920\"><strong data-start=\"1887\" data-end=\"1897\">bcrypt<\/strong> (for password hashing)<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Also read : <a href=\"https:\/\/www.seminarsonly.com\/news\/connect-det-accessing-the-det-connect-portal\/\">Connect DET | Accessing the DET Connect Portal<\/a><\/h3>\n<hr \/>\n<h2 id=\"security-update-to-remove-kdfv1-algorithm-support-in-microsoft-entra-authentication\"><span style=\"color: #800000;\">Microsoft Entra authentication<\/span><\/h2>\n<p data-start=\"471\" data-end=\"659\">Microsoft Entra (Azure AD) enforces <strong data-start=\"507\" data-end=\"536\">modern security standards<\/strong>, and older devices or libraries using <code data-start=\"575\" data-end=\"582\">KDFV1<\/code> (Key Derivation Function Version 1) are now <strong data-start=\"627\" data-end=\"638\">blocked<\/strong> from authenticating.<\/p>\n<p data-start=\"661\" data-end=\"684\">This typically affects:<\/p>\n<ul data-start=\"685\" data-end=\"983\">\n<li data-start=\"685\" data-end=\"771\">\n<p data-start=\"687\" data-end=\"771\"><strong data-start=\"687\" data-end=\"715\">Old or unmanaged devices<\/strong> (e.g., legacy Windows versions or third-party clients).<\/p>\n<\/li>\n<li data-start=\"772\" data-end=\"824\">\n<p data-start=\"774\" data-end=\"824\"><strong data-start=\"774\" data-end=\"823\">Devices using legacy authentication libraries<\/strong>.<\/p>\n<\/li>\n<li data-start=\"825\" data-end=\"899\">\n<p data-start=\"827\" data-end=\"899\"><strong data-start=\"827\" data-end=\"898\">Hybrid Azure AD joined devices that haven\u2019t received recent updates<\/strong>.<\/p>\n<\/li>\n<li data-start=\"900\" data-end=\"983\">\n<p data-start=\"902\" data-end=\"983\"><strong data-start=\"902\" data-end=\"936\">Custom applications or scripts<\/strong> using outdated libraries for token-based auth.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"985\" data-end=\"988\" \/>\n<h2 data-start=\"990\" data-end=\"1010\"><span style=\"color: #800000;\">\u2705 How to Fix This<\/span><\/h2>\n<h3 data-start=\"1012\" data-end=\"1046\"><span style=\"color: #000080;\">1. <strong data-start=\"1019\" data-end=\"1046\">Update the Device or OS<\/strong><\/span><\/h3>\n<p data-start=\"1047\" data-end=\"1082\">Ensure the device is fully updated:<\/p>\n<ul data-start=\"1083\" data-end=\"1310\">\n<li data-start=\"1083\" data-end=\"1163\">\n<p data-start=\"1085\" data-end=\"1163\"><strong data-start=\"1085\" data-end=\"1099\">Windows 10<\/strong> or <strong data-start=\"1103\" data-end=\"1117\">Windows 11<\/strong> with the latest security and feature updates.<\/p>\n<\/li>\n<li data-start=\"1164\" data-end=\"1252\">\n<p data-start=\"1166\" data-end=\"1252\">Updates should include the <strong data-start=\"1193\" data-end=\"1228\">latest Authentication Libraries<\/strong> and <strong data-start=\"1233\" data-end=\"1251\">SSO components<\/strong>.<\/p>\n<\/li>\n<li data-start=\"1253\" data-end=\"1310\">\n<p data-start=\"1255\" data-end=\"1310\">For <strong data-start=\"1259\" data-end=\"1273\">Windows 10<\/strong>, aim for version <strong data-start=\"1291\" data-end=\"1299\">22H2<\/strong> or higher.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1312\" data-end=\"1315\" \/>\n<h3 data-start=\"1317\" data-end=\"1381\"><span style=\"color: #000080;\">2. <strong data-start=\"1324\" data-end=\"1381\">Check for Microsoft Entra Device Registration Updates<\/strong><\/span><\/h3>\n<p data-start=\"1382\" data-end=\"1460\">Some older devices may fail device registration due to this error. To resolve:<\/p>\n<ul data-start=\"1461\" data-end=\"1503\">\n<li data-start=\"1461\" data-end=\"1503\">\n<p data-start=\"1463\" data-end=\"1503\">Open <strong data-start=\"1468\" data-end=\"1494\">Command Prompt (Admin)<\/strong> and run:<\/p>\n<\/li>\n<\/ul>\n<div class=\"contain-inline-size rounded-2xl relative bg-token-sidebar-surface-primary\">\n<div class=\"sticky top-9\"><\/div>\n<div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"whitespace-pre! language-powershell\">dsregcmd \/status<br \/>\n<\/code><\/div>\n<\/div>\n<ul data-start=\"1541\" data-end=\"1705\">\n<li data-start=\"1541\" data-end=\"1631\">\n<p data-start=\"1543\" data-end=\"1631\">If <code data-start=\"1546\" data-end=\"1560\">Device State<\/code> shows <code data-start=\"1567\" data-end=\"1587\">Not AzureAD Joined<\/code>, the device may not be properly registered.<\/p>\n<\/li>\n<li data-start=\"1632\" data-end=\"1705\">\n<p data-start=\"1634\" data-end=\"1705\">Rejoin the device to Azure AD or Hybrid Azure AD (if part of a domain).<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1707\" data-end=\"1710\" \/>\n<h3 data-start=\"1712\" data-end=\"1771\"><span style=\"color: #000080;\">3. <strong data-start=\"1719\" data-end=\"1771\">Update Authentication Libraries (For Developers)<\/strong><\/span><\/h3>\n<p data-start=\"1772\" data-end=\"1903\">If this is related to an application using Microsoft identity platform (e.g., MSAL or ADAL), update to the latest <strong data-start=\"1886\" data-end=\"1894\">MSAL<\/strong> version:<\/p>\n<ul data-start=\"1904\" data-end=\"2041\">\n<li data-start=\"1904\" data-end=\"1946\">\n<p data-start=\"1906\" data-end=\"1946\"><strong data-start=\"1906\" data-end=\"1928\">ADAL is deprecated<\/strong> \u2014 switch to MSAL.<\/p>\n<\/li>\n<li data-start=\"1947\" data-end=\"2041\">\n<p data-start=\"1949\" data-end=\"2041\">Update your libraries to ensure they use modern KDFs (typically handled internally by MSAL).<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2043\" data-end=\"2046\" \/>\n<h3 data-start=\"2048\" data-end=\"2109\"><span style=\"color: #000080;\">4. <strong data-start=\"2055\" data-end=\"2109\">Check Entra Conditional Access \/ Security Settings<\/strong><\/span><\/h3>\n<p data-start=\"2110\" data-end=\"2132\">If you&#8217;re an IT admin:<\/p>\n<ul data-start=\"2133\" data-end=\"2317\">\n<li data-start=\"2133\" data-end=\"2192\">\n<p data-start=\"2135\" data-end=\"2192\">Go to <strong data-start=\"2141\" data-end=\"2191\">Entra Admin Center \u2192 Devices \u2192 Device Settings<\/strong>.<\/p>\n<\/li>\n<li data-start=\"2193\" data-end=\"2276\">\n<p data-start=\"2195\" data-end=\"2276\">Review any conditional access policies that may block older or unmanaged devices.<\/p>\n<\/li>\n<li data-start=\"2277\" data-end=\"2317\">\n<p data-start=\"2279\" data-end=\"2317\">Confirm device compliance is enforced.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"2319\" data-end=\"2322\" \/>\n<h3 data-start=\"2324\" data-end=\"2377\"><span style=\"color: #000080;\">5. <strong data-start=\"2331\" data-end=\"2377\">Re-provision the Device (If Still Failing)<\/strong><\/span><\/h3>\n<p data-start=\"2378\" data-end=\"2423\">If a device continues to fail after updating:<\/p>\n<ul data-start=\"2424\" data-end=\"2572\">\n<li data-start=\"2424\" data-end=\"2486\">\n<p data-start=\"2426\" data-end=\"2486\">Unjoin and rejoin the device to Azure AD or Hybrid Azure AD.<\/p>\n<\/li>\n<li data-start=\"2487\" data-end=\"2572\">\n<p data-start=\"2489\" data-end=\"2572\">Use <strong data-start=\"2493\" data-end=\"2555\"><code data-start=\"2495\" data-end=\"2553\">Settings &gt; Accounts &gt; Access work or school &gt; Disconnect<\/code><\/strong>, then re-enroll.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1922\" data-end=\"1925\" \/>\n<h2 data-start=\"1927\" data-end=\"1938\"><span style=\"color: #800000;\">Summary<\/span><\/h2>\n<p data-start=\"1939\" data-end=\"2157\">This error is a <strong data-start=\"1955\" data-end=\"1975\">security warning<\/strong> indicating that your system or device is using outdated cryptography. To resolve it, you must <strong data-start=\"2070\" data-end=\"2100\">update the device\/software<\/strong> to a version that uses a modern key derivation function.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The error message: &#8220;Symmetric Key Derivation Function Version &#8216;KDFV1&#8217; Is Invalid. Update The Device for the Latest Updates&#8221; means that the device or system you&#8217;re working with is trying to&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6048],"tags":[],"class_list":["post-90644","post","type-post","status-publish","format-standard","hentry","category-error-fix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Symmetric Key Derivation Function Version &#039;KDFV1&#039; Is Invalid. 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