AM3352: Modify the Public Key Certification to 3072B

Kenley

Intellectual 1975 points

Part Number: AM3352
Other Parts Discussed in Thread: SHA-256

Hi team,

According to the AM3352 HS device specification, the public key certificate currently contains 256 bytes of public key(RSA). If customer replace RSA with approximately 3 Kbytes key, will it work?

Regards,

Kenley

4 months ago

0 Hong Guan64 4 months ago

TI__Guru* 80100 points

Hi Kenley,

AM335x HS secure ROM supports only RSA-2048, and the SHA-256(RSA public key) is programmed to onchip eFuse which anchors SoC-enforced RoT secure boot flow from SoC RESET.

Best,
-Hong

0 Kenley 4 months ago in reply to Hong Guan64

TI__Intellectual 1975 points

Hi Hong

Thank you!

Regards,

Kenley

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AM3352: Modify the Public Key Certification to 3072B