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UniqueID not sufficiently randomized #205

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xshuqun opened this issue Jul 29, 2024 · 0 comments

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xshuqun commented Jul 29, 2024

During initialization, UniqueID will be generated and store into NVS.

Due to using Mbedtls DRBG, different device can have the same DRBG context and seed which generates the same random number.

To resolve this, can use crypto_random_generate instead, it has been implemented but disabled in default CONFIG_ENABLE_MATTER_PRNG.

xshuqun self-assigned this

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