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Otto
Associate
October 11, 2019
Question

STM32MP Signing Tool v1.0.0, writes erroneous binary type info

  • October 11, 2019
  • 0 replies
  • 769 views

When signing OP-TEE pager and pageable binaries, the information written to the BinaryType field of the STM32 header (byte 255), unless I have wrong view about semantics (teex->pager, teed->pageable) and typical values (pager->0x21, pageable->0x22), is erroneous.

Signing tool command `--type teed` writes 0x21 and `--type teex` 0x22, while 0x22 and 0x21 are expected respectively.

e.g., signing OP-TEE pageable binary

0690X00000ApWSsQAN.png

Regards,

Otto

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