https://community.nxp.com/t5/NFC/undefined/m-p/1206208#M8021 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/181889">@undefined</a>&nbsp;</P> <P>Hope you are doing great, and happy holidays <LI-EMOJI id="lia_slightly-smiling-face" title=":slightly_smiling_face:"></LI-EMOJI></P> <P>&nbsp;</P> <P>in this case the issue as was in your code you are doing an HMAC so basically you use a hash as you are doing like SHA so this is different than a CMAC as you correctly state in your last update&nbsp; CMAC uses as base the AES algorithm .</P> <P>&nbsp;</P> <P>BR</P> <P>&nbsp;</P> <P>Jonathan</P> Mon, 04 Jan 2021 16:35:04 GMT Jonathan_Iglesias 2021-01-04T16:35:04Z https://community.nxp.com/t5/NFC/undefined/m-p/1205614#M8019 <P>undefined</P> Thu, 14 Dec 2023 04:34:48 GMT https://community.nxp.com/t5/NFC/undefined/m-p/1205614#M8019 undefined 2023-12-14T04:34:48Z https://community.nxp.com/t5/NFC/undefined/m-p/1206208#M8021 <P>Hi&nbsp;<a href="https://community.nxp.com/t5/user/viewprofilepage/user-id/181889">@undefined</a>&nbsp;</P> <P>Hope you are doing great, and happy holidays <LI-EMOJI id="lia_slightly-smiling-face" title=":slightly_smiling_face:"></LI-EMOJI></P> <P>&nbsp;</P> <P>in this case the issue as was in your code you are doing an HMAC so basically you use a hash as you are doing like SHA so this is different than a CMAC as you correctly state in your last update&nbsp; CMAC uses as base the AES algorithm .</P> <P>&nbsp;</P> <P>BR</P> <P>&nbsp;</P> <P>Jonathan</P> Mon, 04 Jan 2021 16:35:04 GMT https://community.nxp.com/t5/NFC/undefined/m-p/1206208#M8021 Jonathan_Iglesias 2021-01-04T16:35:04Z