Hi Waldo On 13:28 Thu 02 Jan , Waldo Alvarez wrote: > Hello: > > I am figuring out how to proceed on secure booting the Milk V DUO 256. Likely > in this list I can get some help. It is ARM/Risc-V board with an SG2002 SOC. > The SOC has OTP memory and some bootrom. > > The current distribution uses u-boot and linux buildroot but doesn't do > secure boot. > > Therefore I am trying to start at the first part. Verify digital dignature of > u-boot and have u-boot verify digital signature of the kernel. > > Can someone point me here in the right direction no how to proceed. > I'm no expert of secure boot area.. but you can search first, there are quite a lot docs/articles about secure boot of uboot/linux
for the initial bootchain: from bootrom to bootloader, there is indeed secure boot feature which documented in vendor datasheet, see chapter 14 https://github.com/milkv-duo/duo-files/blob/main/duo/datasheet/CV1800B-CV1801B-Preliminary-Datasheet-full-en.pdf > Regards > > Waldo Alvarez > Desarrollo de Software / Software Development > https://pipflow.com > https://tradingfuturo.com > > Sent with [Proton Mail](https://proton.me/mail/home) secure email. -- Yixun Lan (dlan) Gentoo Linux Developer GPG Key ID AABEFD55
