Secure Aggregation and Decryption at Central Server

  1. Aggregating Encrypted Model Updates:

    • Unity Network’s central server receives encrypted model updates from all nodes. The server aggregates the encrypted updates using a Secure Aggregation Protocol (e.g., Federated Averaging) to maintain privacy.

  2. Decryption of Aggregated Model:

    • After aggregation, the central server decrypts the final, aggregated model using the symmetric encryption key shared with each node. This produces a global model that is compatible with plaintext data.

  3. Verification and Logging:

    • Unity Network logs the aggregation and decryption process for audit purposes, ensuring transparency and accountability in model update handling.

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