{"id":2678,"date":"2015-08-02T10:41:05","date_gmt":"2015-08-02T06:41:05","guid":{"rendered":"https:\/\/rakhesh.com\/?p=2678"},"modified":"2015-08-02T10:42:19","modified_gmt":"2015-08-02T06:42:19","slug":"extract-secret-keys-from-two-factor-authentication-tfa-qr-codes","status":"publish","type":"post","link":"https:\/\/rakhesh.com\/gadgets\/extract-secret-keys-from-two-factor-authentication-tfa-qr-codes\/","title":{"rendered":"Extract secret keys from Two-Factor Authentication (TFA) QR codes"},"content":{"rendered":"<p>Got me Pebble Time yesterday! Yay. Found a cool app for Two-Factor Authentication codes called <a href=\"https:\/\/github.com\/JumpMaster\/QuickAuth\" target=\"_blank\">QuickAuth<\/a>\u00a0(it&#8217;s open source too, amazing!).\u00a0<\/p>\n<p>The app requires you to enter the secret keys for your Two-Factor Authentication sites. Unfortunately I never saved these when I set up TFA on my devices. I was smart enough to save the QR code for each site and this way I was always able to add new devices by just scanning the saved QR code, but now I had to enter the secret key and I was stuck.\u00a0<\/p>\n<p>Enter another open source project <a href=\"https:\/\/github.com\/zxing\/zxing\" target=\"_blank\">Zebra Crossing (zxing)<\/a>. This is a library for processing QR codes and they have an Android app called <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.google.zxing.client.android\" target=\"_blank\">Barcode Scanner<\/a>. Get this app, scan the QR code, and you get an output that starts with <code>otp:\/\/<\/code>. That&#8217;s the secret key you want. Enter this into QuickAuth.\u00a0<\/p>\n<p>If you don&#8217;t want to download the app there&#8217;s also an <a href=\"http:\/\/zxing.org\/w\/decode.jspx\" target=\"_blank\">online interface<\/a> to upload a QR code and decode. Nice!<\/p>\n<p>p.s. In case it helps anyone &#8211; on the face of it there seems to be no easy way to delete a key\/ site once you enter it into QuickAuth. Later I realized if I long press the select button on the pebble when it shows a code I get many options. One of these lets you delete the key\/ site.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Got me Pebble Time yesterday! Yay. Found a cool app for Two-Factor Authentication codes called QuickAuth\u00a0(it&#8217;s open source too, amazing!).\u00a0 The app requires you to enter the secret keys for your Two-Factor Authentication sites. Unfortunately I never saved these when I set up TFA on my devices. I was smart enough to save the QR &hellip; <a href=\"https:\/\/rakhesh.com\/gadgets\/extract-secret-keys-from-two-factor-authentication-tfa-qr-codes\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Extract secret keys from Two-Factor Authentication (TFA) QR codes<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[65],"tags":[254,182,508,563,564,565],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts\/2678"}],"collection":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/comments?post=2678"}],"version-history":[{"count":0,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/posts\/2678\/revisions"}],"wp:attachment":[{"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/media?parent=2678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/categories?post=2678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rakhesh.com\/wp-json\/wp\/v2\/tags?post=2678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}