Thomas Haertling

HCS08 Bootloader with encryption

Discussion created by Thomas Haertling on Mar 5, 2010
Latest reply on Mar 26, 2010 by leo ren

Hello,

 

our customer wants me to implement a bootloader on our HCS08SG16 via SCI and with encryption. Are there any libraries to do the decryption on the target? I did not find any information for the 8bit - Microcontrollers.

The encryption method is not defined - but it should not be the easiest method to break.

I want to take the doonstack - routines to do the erase and write access to the flash - this works already.

 

I think AES or DES or 3DES - encryption would be nice, but I did not find any hints according to this for my microcontroller - family.

 

Does somebody has an idea or a link for me?

 

Many thanks (and have a nice weekend)

 

Thomas

Outcomes