About SimK

SimK · 2023-12-19

Hi,i implemented our TF-A update by using both bootareas:1) checking EXTCSD for active bank2) flashing opposite bank3) after verification switching EXTCSD (mmc bootpart enable)not failsafe but at least atomic / verified.(btw, i'm missing the feature ...

SimK · 2023-12-05

Hi,i'm implementing our field-update using the A/B mechanism for FIP image.Would like to use the Update Client described on the page as a template:https://wiki.st.com/stm32mpu/wiki/Secure_Firmware_Update#Update_ClientBut no idea where to find it. I d...

SimK · 2024-12-05

Hi, thank you for the article. The real effort for us was not using PKCS but building the signing into the Yocto build process, at least for kirkstone there was nothing. It would be nice if complete signing of TF-A and FIP could be incorporated into ...

SimK · 2024-10-01

It's a while since i did this, i didn't check the newest baseline from ST, but back then for kirkstone it was really incomplete support for FIP signing (and no yocto support for TF-A signing at all). I had to build and install it for my host environm...

SimK · 2024-01-31

Hi,i know this is a late response, but perhaps for someone else looking at this:(@AZaki.2) I think this works in such a way that both TrustedWorldKey and NonTrustedWorldKey are secured via the trusted_key_cert, which is verified with one of the publi...

SimK · 2023-12-20

Hi,ok, then it's as I suspected.if it is just as hard-connected with the EXT_CSD setting, then the register is enough for me to verify that it works like this.thanks for the fast response!

SimK · 2023-12-19

Hi Christophe, thank you for your answer...the documentation speaks so naturally of the update tool that I assumed you just had to find it somewhere.I have implemented it in the meantime, as suggested with devmem2, if anyone is wondering where to fin...

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EMMC Bootarea selection Debugging

Failsafe FIP update with PSA_FWU_SUPPORT

Re: How to use a smartcard (pkcs11) with create_cert/fiptool

Re: How to use a smartcard (pkcs11) with create_cert/fiptool

Re: How to use a smartcard (pkcs11) with create_cert/fiptool

Re: EMMC Bootarea selection Debugging

Re: Failsafe FIP update with PSA_FWU_SUPPORT