I have written several bootloaders, two were VERY secure. Access was
easy, but the data
is very scrambled, and the keys are subtle (Kids, can you say "square roots"?).

I think you can write your own pretty easily...

--Bob

On Fri, Nov 14, 2008 at 1:01 AM, Vitaliy <spam@maksimov.org> wrote:
> How secure are the "out of the box" bootloaders available from Microchip? In
> particular, I'm interested in a secure bootloader for the 16-bit PICs.
>
> Obviously, I would want to protect both the bootloader and the application
> code. So I'm guessing it comes down to two things:
>
>    1. Protecting the bootloader code on the PIC
>    2. Using strong encryption for the app code
>
> I'm assuming I don't have much control over #1, the protection is only as
> strong as Microchip makes it. But what about #2? Which encryption scheme
> would be reasonably sufficient to protect the code?
>
> Vitaliy
>
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