{"id":4143,"date":"2023-01-15T11:44:25","date_gmt":"2023-01-15T10:44:25","guid":{"rendered":"https:\/\/docs2.kentix.com\/knowledge-base\/can-i-use-my-own-mifare-desfire-encryption-and-card-summation-for-rfid-media\/"},"modified":"2026-04-24T14:01:49","modified_gmt":"2026-04-24T12:01:49","slug":"can-i-use-my-own-mifare-desfire-encryption-and-card-summation-for-rfid-media","status":"publish","type":"ht_kb","link":"https:\/\/docs.kentix.com\/en\/knowledge-base\/can-i-use-my-own-mifare-desfire-encryption-and-card-summation-for-rfid-media\/","title":{"rendered":"Can I use my own MIFARE\u00ae DESFire encryption and card summation for RFID media?"},"content":{"rendered":"\n

This is possible in principle. In KentixONE, you can choose between Kentix-specific encryption and your own (custom) encryption (MIFARE\u00ae DESFire application).<\/p>\n\n

Why does Kentix identification media use a standard key and UID rather than a sequentially printed number?The Kentix RFID tokens (key fob, card, etc.) are all delivered with a Kentix specific MIFARE\u00ae DESFire key and without imprinting a sequential number. This greatly simplifies handling for customers with smaller and medium-sized systems.<\/p>\n\n

\"\"
KentixONE – Configuration – Security<\/figcaption><\/figure>\n\n

The customization of the application is done via a configuration file in the following format:<\/strong><\/p>\n\n

mifare_desfire<\/td>\ufeff<\/td><\/tr>
app_id<\/td>“0xa1b2c3d4”<\/td><\/tr>
file_number<\/td>1<\/td><\/tr>
file_offset<\/td>0<\/td><\/tr>
file_length<\/td>128<\/td><\/tr>
file_type<\/td>0<\/td><\/tr>
auth_method<\/td>0<\/td><\/tr>
des_key<\/td>\u201e0xa4b2c7d4e5f6a1ba1b2c3d41234\u201c<\/td><\/tr>
key_number<\/td>0<\/td><\/tr>
card<\/td>\ufeff<\/td><\/tr>
data<\/td>\ufeff<\/td><\/tr>
0<\/td>\ufeff<\/td><\/tr>
name<\/td>“datablock1_name”<\/td><\/tr>
position_start<\/td>1<\/td><\/tr>
position_end<\/td>15<\/td><\/tr>
test_value<\/td>“1234testme”<\/td><\/tr>
encoding<\/td>“ascii”<\/td><\/tr>
1<\/td>\ufeff<\/td><\/tr>
name<\/td>“datablock2_name”<\/td><\/tr>
position_start<\/td>16<\/td><\/tr>
position_end<\/td>20<\/td><\/tr>
test_value<\/td>zero<\/td><\/tr>
encoding<\/td>“bcd”<\/td><\/tr>
2<\/td>\ufeff<\/td><\/tr>
name<\/td>“datablock3_name”<\/td><\/tr>
position_start<\/td>21<\/td><\/tr>
position_end<\/td>30<\/td><\/tr>
test_value<\/td>17<\/td><\/tr>
encoding<\/td>“binary”<\/td><\/tr><\/tbody><\/table><\/figure>\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

This is possible in principle. In KentixONE, you can choose between Kentix-specific encryption and your own (custom) encryption (MIFARE\u00ae DESFire application). Why does Kentix identification media use a standard key and UID rather than a sequentially printed number?The Kentix RFID tokens (key fob, card, etc.) are all delivered with a…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_crdt_document":"","inline_featured_image":false,"footnotes":""},"ht-kb-category":[113],"ht-kb-tag":[],"class_list":["post-4143","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-faq-en-4"],"custom_fields":[],"categories":[{"slug":"faq-en-4","name":"FAQ","shortName":"FAQ"}],"featured_media_url":null,"_links":{"self":[{"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb\/4143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/comments?post=4143"}],"version-history":[{"count":4,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb\/4143\/revisions"}],"predecessor-version":[{"id":13085,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb\/4143\/revisions\/13085"}],"wp:attachment":[{"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/media?parent=4143"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb-category?post=4143"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/docs.kentix.com\/en\/wp-json\/wp\/v2\/ht-kb-tag?post=4143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}