topic Re: Design secure Firmware that no one can flash and retrieve code in/from MCU. in Kinetis Microcontrollers https://community.nxp.com/t5/Kinetis-Microcontrollers/Design-secure-Firmware-that-no-one-can-flash-and-retrieve-code/m-p/641017#M38828 <HTML><HEAD></HEAD><BODY><P>The short answer to your question is that you CAN have a bootloader that "secures" the chip so it can not be dumped - only bulk erased.</P><P></P><P>The longer reply is that you may have to put a lot of work into getting that into place.</P><P></P><P>The standard bootloaders available AND the process of updating your code via the bootloader may not make that easy to implement.</P><P></P><P>Good luck.</P><P></P><P>Joe</P></BODY></HTML> Sun, 02 Apr 2017 20:57:44 GMT JHinkle 2017-04-02T20:57:44Z Design secure Firmware that no one can flash and retrieve code in/from MCU. https://community.nxp.com/t5/Kinetis-Microcontrollers/Design-secure-Firmware-that-no-one-can-flash-and-retrieve-code/m-p/641016#M38827 <HTML><HEAD></HEAD><BODY><P>Hello guys,</P><P></P><P>I want to design my firmware that no one can&nbsp;download hex file in my MCU (MKE18F512VLL16) and no one can retrieve my installed code from MCU.</P><P>Is it possible using ROM Boot loader ?</P><P>Anyone have idea about that than let me know.</P><P></P><P>Thanks.&nbsp;</P></BODY></HTML> Fri, 31 Mar 2017 22:28:15 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Design-secure-Firmware-that-no-one-can-flash-and-retrieve-code/m-p/641016#M38827 rohitchudasama 2017-03-31T22:28:15Z Re: Design secure Firmware that no one can flash and retrieve code in/from MCU. https://community.nxp.com/t5/Kinetis-Microcontrollers/Design-secure-Firmware-that-no-one-can-flash-and-retrieve-code/m-p/641017#M38828 <HTML><HEAD></HEAD><BODY><P>The short answer to your question is that you CAN have a bootloader that "secures" the chip so it can not be dumped - only bulk erased.</P><P></P><P>The longer reply is that you may have to put a lot of work into getting that into place.</P><P></P><P>The standard bootloaders available AND the process of updating your code via the bootloader may not make that easy to implement.</P><P></P><P>Good luck.</P><P></P><P>Joe</P></BODY></HTML> Sun, 02 Apr 2017 20:57:44 GMT https://community.nxp.com/t5/Kinetis-Microcontrollers/Design-secure-Firmware-that-no-one-can-flash-and-retrieve-code/m-p/641017#M38828 JHinkle 2017-04-02T20:57:44Z