In a 3rd phase, the proxy asks the API for C. The API checks if B has the legal rights to implement C and after that forwards C on the proxy.
PKCS#11, often called Cryptoki, is definitely an API standard built to https://georgiapxxk793636.blogdun.com/31241267/a-secret-weapon-for-data-loss-prevention-confidential-computing-tee-confidential-computing-enclave-safe-ai-act-confidential-ai-data-security-data-confidentiality