BQ40Z50-R2: SHA-1 Authentication Digest Problem

Joseph Cohen

Part Number: BQ40Z50-R2
Other Parts Discussed in Thread: BQ40Z50, BQSTUDIO, BQ26100

Hi Team,

We are running into issues with SHA-1 authentication where open ssl generates a different digest than BQstudio or the BQ40Z50.

It seems that they attempted to use a FIPS open ssl algorithm that doesn't provide the right digest. They are hoping we can either provide:

BQ40Z50 firmware that will provide the same digest as openssl SHA-1
A command line tool source code that can give the same digest as the BQ40Z50
1. they need the source as they have to cross compile it to the device

Do we have source (host) code that we can provide them for running SHA-1? Perhaps from when the SHA-1 was tested?

Thank you!

over 5 years ago

0 Andy Liu (BMS) over 5 years ago

TI__Guru 52115 points

Hi Joseph,

Check the following e2e thread.

https://e2e.ti.com/support/power-management/f/196/t/860291

Andy

0 Joseph Cohen over 5 years ago in reply to Andy Liu (BMS)

TI__Prodigy 470 points

Hi Andy,

That E2E thread refers to example MSP430 SHA-1 files that aren't posted in that thread, and that are for the BQ26100. Do we have any resources with example code for the BQ40Z50 specifically?

I did find a separate E2E thread that seems to have the example MSP430 files, but the link is broken. Can you help me find the example code mentioned in that thread? https://e2e.ti.com/support/power-management/f/196/p/536608/1958227#1958227

Also, the libraries in your link go to an external unsecure website to provide additional MSP430 libraries, can you help me find those resources internally?

-Joseph

0 Andy Liu (BMS) over 5 years ago in reply to Joseph Cohen

TI__Guru 52115 points

Hi Joseph,

I have sent the example code to you via email.

Andy

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BQ40Z50-R2: SHA-1 Authentication Digest Problem