Re: [PATCH v5 02/15] qcom_scm: scm call for deriving a software secret

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, Jun 16, 2024 at 05:50:57PM GMT, Gaurav Kashyap wrote:
> Inline storage encryption may require deriving a software
> secret from storage keys added to the kernel.
> 
> For non-wrapped keys, this can be directly done in the kernel as
> keys are in the clear.
> 
> However, hardware wrapped keys can only be unwrapped by the wrapping
> entity. In case of Qualcomm's wrapped key solution, this is done by
> the Hardware Key Manager (HWKM) from Trustzone.
> Hence, adding a new SCM call which in the end provides a hook
> to the software secret crypto profile API provided by the block
> layer.
> 
> Tested-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> Signed-off-by: Gaurav Kashyap <quic_gaurkash@xxxxxxxxxxx>
> ---
>  drivers/firmware/qcom/qcom_scm.c       | 65 ++++++++++++++++++++++++++
>  drivers/firmware/qcom/qcom_scm.h       |  1 +
>  include/linux/firmware/qcom/qcom_scm.h |  2 +
>  3 files changed, 68 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>

-- 
With best wishes
Dmitry




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux