METHODS AND APPARATUS FOR PERFORMING A CRYPTOGRAPHIC OPERATION WITH A KEY STORED IN A HARDWARE SECURITY MODULE

摘要

Aspects of the present disclosure relate to an apparatus comprising secure enclave circuitry, and processing circuitry to execute computer program instructions. The computer program instructions correspond to an operation comprising accessing a cryptographic key, the key being stored in a hardware security module. Executing the computer program instructions comprises transmitting, to the secure enclave circuitry, computer program instructions corresponding to said operation. The secure enclave circuitry is configured to initiate communication with the hardware security module, perform, with the hardware security module, an attestation process in respect of said operation, and execute said operation.