ble signed write failure

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
srko_2574741
Level 1
Level 1

hi,

i'm facing the issue with ble signed write command.

please some one cane help me regarding this issue.

0 Likes
3 Replies
lock attach
Attachments are accessible only for community members.
Yugandhar
Moderator
Moderator
Moderator
500 solutions authored 1000 replies posted 5 likes given

Hello,

Can you please let us know what is the issue you are facing?

Please refer to the attached example project where I'm sending signed write value to the peripheral.

Thanks,

P Yugandhar.

0 Likes

Hi Yugandhar,

thanks for reply,

here i am facing the issue with the generated signature value. It is not matching the AES_CMAC output as specified in the BT_spec_5.0

Please check the spec part 3.4.5.4 Signed Write command.

As per bluetooth Spec, the generated output signature should match the half of the part of the AES_CMAC output.

Thanks,

Srinivasareddy.

0 Likes

Hello Srinivasareddy,

Can you please share your project?

Thanks,

P Yugandhar.

0 Likes