https://community.nxp.com/t5/NFC/APDU-command-set/m-p/1415758#M9201 <P>Hi&nbsp; Nidhintomy:</P> <P>&nbsp;</P> <P>The applet selection is a card manager command and it interacts with the JCOP, NOT the applet.&nbsp; hense CLA&nbsp; is 00.</P> <P>&nbsp;</P> <P>Regards</P> <P>Daniel&nbsp;</P> Fri, 18 Feb 2022 05:05:44 GMT danielchen 2022-02-18T05:05:44Z https://community.nxp.com/t5/NFC/APDU-command-set/m-p/1409441#M9157 <P>In <SPAN>AN12413 </SPAN><SPAN>SE050 APDU Specification</SPAN></P><P><SPAN>"4.1.1.1 CLA byte<BR />The CLA byte is fixed for each command to <STRONG>0x80</STRONG> (= no secure messaging) or<STRONG> 0x84</STRONG> (=<BR />proprietary secure messaging). <STRONG>Any other CLA byte will be rejected</STRONG>."</SPAN></P><P><SPAN>But in the same document CLA byte is set to 0x00 for appletSelect c-apdu.</SPAN></P><P><SPAN>Table 51. <STRONG>AppletSelect C-APDU</STRONG><BR /><STRONG>CLA 0x00</STRONG><BR />INS 0xA4<BR />P1 0x04<BR />P2 0x00<BR />Lc 0x10<BR />Payload 0xA0000003965453000000010300000000<BR />Le 0x00<BR /></SPAN></P><P><STRONG>Then how this CLA byte will be accepted?</STRONG></P><P><SPAN>Thanks!</SPAN></P> Mon, 07 Feb 2022 06:19:45 GMT https://community.nxp.com/t5/NFC/APDU-command-set/m-p/1409441#M9157 nidhintomy 2022-02-07T06:19:45Z https://community.nxp.com/t5/NFC/APDU-command-set/m-p/1415758#M9201 <P>Hi&nbsp; Nidhintomy:</P> <P>&nbsp;</P> <P>The applet selection is a card manager command and it interacts with the JCOP, NOT the applet.&nbsp; hense CLA&nbsp; is 00.</P> <P>&nbsp;</P> <P>Regards</P> <P>Daniel&nbsp;</P> Fri, 18 Feb 2022 05:05:44 GMT https://community.nxp.com/t5/NFC/APDU-command-set/m-p/1415758#M9201 danielchen 2022-02-18T05:05:44Z