Hardware Architecture for a Quantum Computer Trusted Execution Environment
Theodoros Trochatos, Chuanqi Xu, Sanjay Deshpande, Yao Lu, Yongshan, Ding, Jakub Szefer

TL;DR
This paper proposes a hardware architecture for a trusted execution environment in quantum cloud computing, using decoy control pulses and tamper-resistant features to protect user circuits and data from malicious providers.
Contribution
It introduces a novel hardware architecture with decoy pulses and tamper resistance to secure quantum computations in cloud environments, a first in this domain.
Findings
Variational distance of protected circuits is between 0.16 and 0.26.
Hardware components are readily available today.
Protection scheme is scalable and feasible.
Abstract
The cloud-based environments in which today's and future quantum computers will operate, raise concerns about the security and privacy of user's intellectual property. Quantum circuits submitted to cloud-based quantum computer providers represent sensitive or proprietary algorithms developed by users that need protection. Further, input data is hard-coded into the circuits, and leakage of the circuits can expose users' data. To help protect users' circuits and data from possibly malicious quantum computer cloud providers, this work presented the first hardware architecture for a trusted execution environment for quantum computers. To protect the user's circuits and data, the quantum computer control pulses are obfuscated with decoy control pulses. While digital data can be encrypted, analog control pulses cannot and this paper proposed the novel decoy pulse approach to obfuscate the…
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Taxonomy
TopicsQuantum Computing Algorithms and Architecture · Chaos-based Image/Signal Encryption · Quantum Information and Cryptography
