Can the CEC1702 AES-GCM be implemented by using the AES-CTR followed by a Hash function?
  • You can perform the encryption using the CTR in CEC1702, but for the authentication, you cannot use the HASH function from the BA413. GCM mode uses a different type of hash function. You could maybe do it in software, but it may not be efficient.
  • If you are using Mbedtls or WolfSSL libraries in your application, you can try to look at the SW implementation of AES-GCM and see if you can efficiently offload the AES-CTR part to CEC1702.

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