Removed: Update crypto API to use a Microship secure element such as ATECC608A #235
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added 5 commits
March 4, 2024 09:38
LizzieDE110
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I am working on boards that embed an ATECC608A (Microchip secure element), and I would like to perform all ECC/ECDH operations using it. This approach offers the benefit of enhanced security, as private keys are not directly manipulated.
Initially, I am working with RIOT. When I started looking for solutions to secure RF communication, I came across tinydtls and was convinced by its implementation of DTLS. I noticed some issues on my board (reported here Issue 224), and a PR to replace ecc with micro-ecc is now open (PR 229).
Micro-ecc works on my boards and significantly accelerates the handshake process. However, as mentioned earlier, I have an ATECC608A on my boards, so I would like to add a feature allowing users to choose whether to use it or not.
Since not all boards embed a secure element, I have added an environment variable (DTLS_ATECC608A) to give users the choice to use it or not. The CryptoAuth library is used to control the secure element (CryptoAuthLib).
This PR is still a work in progress, but I have opened it so that we can discuss and improve my work.