Hi,
Is it possible to protect the code against copy for an industrial application ?
Thanks you
Have a look at this:
http://gpl-violations.org/
Sorry I’ve seen it is a GPL project
You might want to look at some of the Freescale processors. Last time I heard (~2010), they had multiple levels of protection built in to the product. You can burn in (write-once) an encryption key and then encrypt the contents of the FLASH using that key. You can also have it checksum the contents of the boot code to prevent malicious code execution. All of this does slow down the boot and causes headaches in manufacturing, but if you want to protect the bits, it’s one of the few ways to do it. Here is a security whitepaper for Freescale: http://cache.freescale.com/files/32bit/doc/white_paper/IMXSCRTYWP.pdf