topic Random ID in NFC https://community.nxp.com/t5/NFC/Random-ID/m-p/892520#M5271 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>For NTAG424, there is a random UID function. May I know how to calculate the random UID ? as there is not mention detail calculation in documents .</P><P>I think it can generate a Random ID base on Application key.</P><P>Thanks</P><P>Sunny.</P></BODY></HTML> Tue, 14 May 2019 01:39:07 GMT sunnyso 2019-05-14T01:39:07Z Random ID https://community.nxp.com/t5/NFC/Random-ID/m-p/892520#M5271 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P>For NTAG424, there is a random UID function. May I know how to calculate the random UID ? as there is not mention detail calculation in documents .</P><P>I think it can generate a Random ID base on Application key.</P><P>Thanks</P><P>Sunny.</P></BODY></HTML> Tue, 14 May 2019 01:39:07 GMT https://community.nxp.com/t5/NFC/Random-ID/m-p/892520#M5271 sunnyso 2019-05-14T01:39:07Z Re: Random ID https://community.nxp.com/t5/NFC/Random-ID/m-p/892521#M5272 <HTML><HEAD></HEAD><BODY><P>Dear&nbsp;<A _jive_internal="true" data-content-finding="Community" data-userid="321494" data-username="sunnyso" href="https://community.nxp.com/people/sunnyso">Sunny So</A>,</P><P>On the NTAG 424 DNA there is a TRGN as seen in datasheet (below pic). It offers randomness as required this comply with AIS31 please check this spec.</P><P><span class="lia-inline-image-display-wrapper" image-alt="trng.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/84043i2CB80B081EA2E622/image-size/large?v=v2&amp;px=999" role="button" title="trng.png" alt="trng.png" /></span></P><P>BR</P><P></P><P>Jonathan</P></BODY></HTML> Tue, 28 May 2019 17:34:44 GMT https://community.nxp.com/t5/NFC/Random-ID/m-p/892521#M5272 Jonathan_Iglesias 2019-05-28T17:34:44Z