NFCのトピックHow to Secure NFC using NTAG213 and NXP Reader Lib https://community.nxp.com/t5/NFC/How-to-Secure-NFC-using-NTAG213-and-NXP-Reader-Lib/m-p/704861#M2632 <HTML><HEAD></HEAD><BODY><DIV class=""><P>My question is similar to <A href="https://stackoverflow.com/questions/43284612/how-to-access-the-ntag213-nfc-interaction-counter">the one here</A>, but since it is not answered i'll ask mine here :</P><P></P><P>I would like to set configuration on Mirror, mirror page, AUTH0, PROT, CFGLCK, NFC_CNT_EN, AUTHLIM, PWD and PACK included in pages 41 to 44 of the NTAG213 memory. I've read all the <A href="http://www.nxp.com/docs/en/data-sheet/NTAG213_215_216.pdf" rel="nofollow noreferrer">datasheet of NTAG213</A> and the library user manuel in <A href="http://www.nxp.com/docs/en/user-guide/UM10663.pdf">this source</A> but I still can't find my answer.</P><P></P><P>For more detail : I want to set a password and have to connect to the data only if I have the password. The configuration that i want are described as followed and are in relation with chapter 8.5 for memory organisation of NTAG213 datasheet and 8.5.7 Configuration pages on the same document. I know exactly the configuration i want :</P><P></P><UL><LI><P>CFG0 :</P><UL><LI>MirrorConf____________0b0</LI><LI>Mirror_byte___________0b0</LI><LI>RFUI__________________0b0 default</LI><LI>STRGMOD_EN____________0b1</LI><LI>RFUI__________________0b0</LI><LI>RFUI__________________0x00</LI><LI>MirrorPAge____________0x00</LI><LI>AUTH0_________________0xFF</LI></UL></LI><LI><P>CFG1 :</P><UL><LI>PROT__________________0b1</LI><LI>CFGLCK________________0b0</LI><LI>RFUI__________________0b0 default</LI><LI>NFC_CNT_EN____________0b1</LI><LI>NFC_CNT_PWDPROT_______0b0</LI><LI>AUTHLIM_______________0b000</LI></UL></LI><LI><P>PWD : (my password)</P><UL><LI>1</LI><LI>2</LI><LI>3</LI><LI>4</LI></UL></LI><LI><P>PACK : could i have some explanation about that part ? i don't really know its signification.</P></LI></UL><P></P><P>Moreover I would like to use command from the NXPrdlib but i don't know what to use after reading it, i can load and store a choosen key (1234) but can't authenticate to ntag213 with a authcommand ...</P><P>Can someone help me finding function in c from the lib that i have to use ?</P><P>I suppose i can't change directly CFG0/1 and PWD the first time because i tried and it didn't work with phalmful_write() function.</P><P>Furthermore I don't really get the difference with Mifare Key that is 6 bytes long that is to say 2 bytes longer than phkey ... [A part is done in <A href="http://github.com/arith/RealTime-NFC-Reader/blob/master/source/nfc.h">this source</A> but it is not clear.</P><P>thanks in advance.</P><P></P><P>Benjamin</P></DIV></BODY></HTML> Wed, 23 Aug 2017 10:46:32 GMT benjaminlevy 2017-08-23T10:46:32Z How to Secure NFC using NTAG213 and NXP Reader Lib https://community.nxp.com/t5/NFC/How-to-Secure-NFC-using-NTAG213-and-NXP-Reader-Lib/m-p/704861#M2632 <HTML><HEAD></HEAD><BODY><DIV class=""><P>My question is similar to <A href="https://stackoverflow.com/questions/43284612/how-to-access-the-ntag213-nfc-interaction-counter">the one here</A>, but since it is not answered i'll ask mine here :</P><P></P><P>I would like to set configuration on Mirror, mirror page, AUTH0, PROT, CFGLCK, NFC_CNT_EN, AUTHLIM, PWD and PACK included in pages 41 to 44 of the NTAG213 memory. I've read all the <A href="http://www.nxp.com/docs/en/data-sheet/NTAG213_215_216.pdf" rel="nofollow noreferrer">datasheet of NTAG213</A> and the library user manuel in <A href="http://www.nxp.com/docs/en/user-guide/UM10663.pdf">this source</A> but I still can't find my answer.</P><P></P><P>For more detail : I want to set a password and have to connect to the data only if I have the password. The configuration that i want are described as followed and are in relation with chapter 8.5 for memory organisation of NTAG213 datasheet and 8.5.7 Configuration pages on the same document. I know exactly the configuration i want :</P><P></P><UL><LI><P>CFG0 :</P><UL><LI>MirrorConf____________0b0</LI><LI>Mirror_byte___________0b0</LI><LI>RFUI__________________0b0 default</LI><LI>STRGMOD_EN____________0b1</LI><LI>RFUI__________________0b0</LI><LI>RFUI__________________0x00</LI><LI>MirrorPAge____________0x00</LI><LI>AUTH0_________________0xFF</LI></UL></LI><LI><P>CFG1 :</P><UL><LI>PROT__________________0b1</LI><LI>CFGLCK________________0b0</LI><LI>RFUI__________________0b0 default</LI><LI>NFC_CNT_EN____________0b1</LI><LI>NFC_CNT_PWDPROT_______0b0</LI><LI>AUTHLIM_______________0b000</LI></UL></LI><LI><P>PWD : (my password)</P><UL><LI>1</LI><LI>2</LI><LI>3</LI><LI>4</LI></UL></LI><LI><P>PACK : could i have some explanation about that part ? i don't really know its signification.</P></LI></UL><P></P><P>Moreover I would like to use command from the NXPrdlib but i don't know what to use after reading it, i can load and store a choosen key (1234) but can't authenticate to ntag213 with a authcommand ...</P><P>Can someone help me finding function in c from the lib that i have to use ?</P><P>I suppose i can't change directly CFG0/1 and PWD the first time because i tried and it didn't work with phalmful_write() function.</P><P>Furthermore I don't really get the difference with Mifare Key that is 6 bytes long that is to say 2 bytes longer than phkey ... [A part is done in <A href="http://github.com/arith/RealTime-NFC-Reader/blob/master/source/nfc.h">this source</A> but it is not clear.</P><P>thanks in advance.</P><P></P><P>Benjamin</P></DIV></BODY></HTML> Wed, 23 Aug 2017 10:46:32 GMT https://community.nxp.com/t5/NFC/How-to-Secure-NFC-using-NTAG213-and-NXP-Reader-Lib/m-p/704861#M2632 benjaminlevy 2017-08-23T10:46:32Z