  Quantum computing is an emerging paradigm that has shown great promise in
accelerating large-scale scientific, optimization, and machine-learning
workloads. With most quantum computing solutions being offered over the cloud,
it has become imperative to protect confidential and proprietary quantum code
from being accessed by untrusted and/or adversarial agents. In response to this
challenge, we propose SPYCE, which is the first known solution to obfuscate
quantum code and output to prevent the leaking of any confidential information
over the cloud. SPYCE implements a lightweight, scalable, and effective
solution based on the unique principles of quantum computing to achieve this
task.
