imx6q blob encapsulation and decapsulation

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imx6q blob encapsulation and decapsulation

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yilingxu
Contributor III

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>;
};

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yilingxu
Contributor III

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

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Yuri
NXP Employee
NXP Employee

Hello,

  I've sent You some comments directly.

Regards,

Yuri.

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yilingxu
Contributor III

I have received email, thanks for your contribution.

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