topic Re: imx6q blob encapsulation and decapsulation in i.MX Processors

imx6q blob encapsulation and decapsulation

yilingxu — Tue, 26 Feb 2019 15:09:11 GMT

If I only want to generate a general blob (red blob). Neither secure memory blob, nor black key. Do I need to read and write caam-sm? In other world, whether I can disable caam-sm node in device tree if I only want to generate a general blob?

caam_sm node in device tree as follow:

caam_sm: caam-sm@00100000 {
compatible = "fsl,imx6q-caam-sm";
reg = <0x00100000 0x4000>;
};

Re: imx6q blob encapsulation and decapsulation

yilingxu — Wed, 27 Feb 2019 04:24:21 GMT

Whether "using master key to derive a blob-key encryption key" need caam-sm?

Re: imx6q blob encapsulation and decapsulation

Yuri — Wed, 27 Feb 2019 07:48:02 GMT

Hello,

I've sent You some comments directly.

Regards,

Yuri.

Re: imx6q blob encapsulation and decapsulation

yilingxu — Wed, 27 Feb 2019 09:08:04 GMT

I have received email, thanks for your contribution.