On using SECURE_BOOT and SECURE_SFLASH options

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srka_2023246
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One of our client who is using CYW43907 based board, wishes to keep their firmware and

boot-loader in serial flash safe by placing them in encrypted. For this, we are planning to

use SECURE_BOOT and SECURE_SFLASH options. We have referred Application Note

AN214842. Finally we also need to use OTA2 also in secure mode.

Are these options widely used and proven already ?

Are we going to get enough support and information on this, if we get stuck ?

We are getting these doubts as we try to build  43xxx_Wi-Fi/tools/secureboot/aec_cbc_128 and

hmac_sha256 commands, they are not getting built with the makefile given.

Also when we use both SECURE_BOOT=1 and SECURE_SFLASH=1 options, simple scan application

itself failing.

In the above scenario, we wish to get some feed back on how easy or how safe to use these options.

How much info/help/support are we going to get?

Thanks,

Srini Karasala

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