Re: [coreboot] How to protect binary in flash chip? OTP?

[Zaolin]

Hi Zheng,

it is really hard to do that. I guess you'll need to have platform support
for such a feature. Maybe you could ask Christopher Tarnovsky
about such technologies ([e-mail]). He is a
kind guy and an expert when it comes to security chips/technologies
on the hardware level :) .

Best Regards
Zheng

On 05/06/2016 02:45 AM, Zheng Bao wrote:
> Hi, All,
> Is there any way to protect the binary image in flash chip from being copied? Once the customers
> gets the image, they can produce millions of board and do not tell me. I just want to know the
> amount of the mass production.
>
> OTP seems to be a way, but it is not 100%. The data in OTP is readable and can be copied to a new chip's
> OTP erea.
>
> Do you guys have any more suggestion?
>
> Zheng
>