BQ40Z80: SHA-1 authentication

Hi Shrish,

Can you please see feedback and advise?

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Afe unseal case, when reading from the smbus read block section, I can read the digest from the 0x2F register, that is, 2FA27… but when I press the authenticate button, I get this error.

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Thanks in advance

Best Regards

Furkan

Hello Furkan,

Root cause seems to be a communication error. Let me know which version of bqStudio was used and if it is repeatable.

Hi Shirish,

Can you please check and advise with feedback?

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At this point, I did not from bq studio, but by correcting the register in data memory, I passed that point, but I did not understand how to calculate SHA1 / HMAC.
I looked at How to Implement SHA-1/HMAC Authentication for bq26100 pdf, but this pdf was sent to every person who asked this question on the forum.
When I try on the online calculators, I get different results from the calculator in bq studio (even though I took 2 turns). Even though I tried both big endian and little endian, I could not reach the same result.

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Thanks

Furkan

Hi Shirish,

Thanks for feedback but we could not fix the issue here, can you please support further, how we can help here?

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When I try on the online calculators, I get different results from the calculator in bq studio (even though I took 2 turns). Even though I tried both big endian and little endian, I could not reach the same result.

"

Thanks in advance

Best Regards

Furkan