IMXRT117x HAB version 4.5 document

[SMT]

Is it possible to update HAB in IMXRT117x series from Version 4 to 4.5?
Need document for HABVersion 4.5

Do the needful.

[RajaJessayen]

Just to give more background why we are looking for HAB upgrade. As per HAB v4 which we use now supports only PKCS#1 algorithm for digital signature. We have to change it to ECDSA or RSA-PSS. As per documentation, HAB ver >=4.5 seems to be be supporting ECDSA.  

Is HAB upgrade not possible ? Is it only a BSP change or it involves any change in the silicon ?

[Gavin_Jia]

Hi @SMT ,

Thanks for the interest in NXP MIMXRT series!

NXP doesn't offer OEMs or customers a way to go about updating the HAB, which is difficult to do. At the same time, there is no timeline to upgrade the HAB version for the time being. For the time being, only the official release will prevail, sorry for any inconvenience caused.

Best regards,
Gavin

[SMT]

Hi Team,

Thanks for the reply on updating the HAB library. Just small clarification needed,
It is possible to update the HAB but it is tedious process ? or not able to update?

Thanks.

[Gavin_Jia]

Also I've attached the API Reference Manual available so far, hopefully it will be of some use.