Key ceremony in multi-party computation

A system for deploying a plurality of multi-party computation (MPC) nodes, the system comprising:

• a plurality of persistent storages;
• and
• a plurality of MPC nodes each associated with one of the persistent storages, each MPC node to be executed in a respective instance of a secure enclave, each MPC node comprising one or more processors and memory storing executable instructions, wherein the instructions for each MPC node, when executed by the one or more processors, cause the one or more processors:
• receive a configuration file of the MPC node and an encryptor key file of the MPC node, the encryptor key file being uniquely associated with the MPC node and capable of decrypting an MPC key shard corresponding to the MPC node;
• generate a backup of the encryptor key file using an MPC split;
• encrypt the encryptor key file with a customer-managed key to generate a wrapped encryptor key file, the customer-managed key being transmitted to an attestation node that returns a resource identifier identifying the customer-managed key, and the wrapped encryptor key file being associated with the resource identifier;
• and
• store the wrapped encryptor key file in the persistent storage associated with the MPC node,
• wherein the wrapped encryptor key file, the configuration file, and the resource identifier are injectable into the respective instance of the secure enclave to perform a key ceremony process that initiates the MPC node.