https://community.nxp.com/t5/Wireless-MCU/Mifare-Desfire-How-to-change-Application-Master-Key/m-p/1923970#M18578 <P>Hello There,<BR />I'm working on a NFC based application based on Mifare Desfire EV3.<BR />Currently configuring the card using NXP Pegoda reader via <STRONG>RFIDDiscover</STRONG> software.<BR /><BR />I'm facing issues while changing the Application specific Master Key (i.e., Card Key 0). I always get "Permission Denied" error. While I can easily change other keys (Card Key 1, 2 for instance)<BR /><BR />Before changing the Key I tried authenticating with the default Key and authentication succeeds but changing the key gives error.<BR /><BR />I have attached some screenshots from RFIDDISCOVER software-</P><P>&nbsp;</P><P><STRONG>The Error</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_0-1722598177528.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291698i5922EFE3A6722FF2/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_0-1722598177528.png" alt="KeshavAggarwal_0-1722598177528.png" /></span></P><P>&nbsp;</P><P><STRONG>App Configuration</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_4-1722598481023.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291705i215F6B7A46814E4A/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_4-1722598481023.png" alt="KeshavAggarwal_4-1722598481023.png" /></span></P><P>&nbsp;</P><P><STRONG>Key Store</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_5-1722598499831.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291706iED370D5F6FF04BE2/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_5-1722598499831.png" alt="KeshavAggarwal_5-1722598499831.png" /></span><BR /><BR /></P><P>&nbsp;</P><P>Any help is appreciated.<BR /><BR />Regards,</P><P>KA</P> Fri, 02 Aug 2024 11:36:56 GMT KeshavAggarwal 2024-08-02T11:36:56Z https://community.nxp.com/t5/Wireless-MCU/Mifare-Desfire-How-to-change-Application-Master-Key/m-p/1923970#M18578 <P>Hello There,<BR />I'm working on a NFC based application based on Mifare Desfire EV3.<BR />Currently configuring the card using NXP Pegoda reader via <STRONG>RFIDDiscover</STRONG> software.<BR /><BR />I'm facing issues while changing the Application specific Master Key (i.e., Card Key 0). I always get "Permission Denied" error. While I can easily change other keys (Card Key 1, 2 for instance)<BR /><BR />Before changing the Key I tried authenticating with the default Key and authentication succeeds but changing the key gives error.<BR /><BR />I have attached some screenshots from RFIDDISCOVER software-</P><P>&nbsp;</P><P><STRONG>The Error</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_0-1722598177528.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291698i5922EFE3A6722FF2/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_0-1722598177528.png" alt="KeshavAggarwal_0-1722598177528.png" /></span></P><P>&nbsp;</P><P><STRONG>App Configuration</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_4-1722598481023.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291705i215F6B7A46814E4A/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_4-1722598481023.png" alt="KeshavAggarwal_4-1722598481023.png" /></span></P><P>&nbsp;</P><P><STRONG>Key Store</STRONG></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="KeshavAggarwal_5-1722598499831.png" style="width: 999px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/291706iED370D5F6FF04BE2/image-size/large?v=v2&amp;px=999" role="button" title="KeshavAggarwal_5-1722598499831.png" alt="KeshavAggarwal_5-1722598499831.png" /></span><BR /><BR /></P><P>&nbsp;</P><P>Any help is appreciated.<BR /><BR />Regards,</P><P>KA</P> Fri, 02 Aug 2024 11:36:56 GMT https://community.nxp.com/t5/Wireless-MCU/Mifare-Desfire-How-to-change-Application-Master-Key/m-p/1923970#M18578 KeshavAggarwal 2024-08-02T11:36:56Z