A workload server computing device receives a workload encryption key from a workload client computing device over a network. The workload encryption key is encrypted with a public encryption key of the workload server computing device. The workload server computing device decrypts the workload encryption key using a private encryption key of the workload server computing device corresponding to the public encryption key. The workload server computing device receives a workload from the workload client computing device over the network. The workload is encrypted with the workload encryption key. The workload server computing device decrypts the workload using the workload encryption key, and executes the decrypted workload for the workload client computing device.