I'm fairly new to BLE and am exploring the security of advertising packets. I was hoping to find some recommendations for resources/general advice on how should learn/implement lightweight encryptions for advertising packets. The data I would work with isn't highly sensitive and after looking into it I'm leaning towards using an ECB and two TI Launchpads to develop with.
1 Answers
For your own private project it might be suitable to use symmetric encryption such as AES. You would need one key on all devices to en- and decrypt your messages.
Depending on your choice of language there are small libraries like tiny-AES availible. Larger collection of cryptographic tools like mbedtls or cryptopp exist but might be overkill for your purpose.
Also take a look at the tools provided by TI, there might be some libraries included in your SDK.
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