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Quantum compilers play a crucial role in quantum computing by converting these algorithmic quantum circuits into forms compatible with specific quantum computer hardware. However, untrusted quantum compilers present considerable risks,…

Quantum Physics · Physics 2025-08-19 Anees Rehman , Vincent Langford , Yuntao Liu

Optimization of quantum circuits using an efficient compiler is key to its success for NISQ computers. Several 3rd party compilers are evolving to offer improved performance for large quantum circuits. These 3rd parties, or just a certain…

The success of quantum circuits in providing reliable outcomes for a given problem depends on the gate count and depth in near-term noisy quantum computers. Quantum circuit compilers that decompose high-level gates to native gates of the…

Quantum Physics · Physics 2023-06-30 Subrata Das , Swaroop Ghosh

Quantum circuit obfuscation is becoming increasingly important to prevent theft and reverse engineering of quantum algorithms. As quantum computing advances, the need to protect the intellectual property contained in quantum circuits…

Cryptography and Security · Computer Science 2025-12-23 Pradyun Parayil , Amal Raj , Vivek Balachandran

In the realm of quantum computing, quantum circuits serve as essential depictions of quantum algorithms, which are then compiled into executable operations for quantum computations. Quantum compilers are responsible for converting these…

Cryptography and Security · Computer Science 2026-03-02 Vincent Langford , Shihan Zhao , Hongyu Zhang , Ben Dong , Qian Wang , Anees Rehman , Yuntao Liu

A classical obfuscator for quantum circuits is a classical program that, given the classical description of a quantum circuit $Q$, outputs the classical description of a functionally equivalent quantum circuit $\hat{Q}$ that hides as much…

Quantum Physics · Physics 2026-01-14 James Bartusek , Aparna Gupte , Saachi Mutreja , Omri Shmueli

Quantum computing solutions are increasingly deployed in commercial environments through delegated computing, especially one of the most critical issues is to guarantee the confidentiality and proprietary of quantum implementations. Since…

Quantum Physics · Physics 2024-11-20 Yuanjing Zhang , Tao Shang , Kun Zhang , Chenyi Zhang , Haohua Du , Xueyi Guo

This paper introduces ObfusQate, a novel tool that conducts obfuscations using quantum primitives to enhance the security of both classical and quantum programs. We have designed and implemented two primary categories of obfuscations:…

Cryptography and Security · Computer Science 2025-08-18 Nikhil Bartake , See Toh Zi Jie , Carmen Wong Jiawen , Michael Kasper , Vivek Balachandran

Quantum computing hardware is affected by quantum noise that undermine the quality of results of an executed quantum program. Amongst other quantum noises, coherent error that caused by parameter drifting and miscalibration, remains…

Hardware Architecture · Computer Science 2024-10-15 Xiangyu Ren , Junjie Wan , Zhiding Liang , Antonio Barbalace

A major unresolved question in quantum cryptography is whether it is possible to obfuscate arbitrary quantum computation. Indeed, there is much yet to understand about the feasibility of quantum obfuscation even in the classical oracle…

Quantum Physics · Physics 2024-01-19 James Bartusek , Zvika Brakerski , Vinod Vaikuntanathan

Program obfuscation aims to hide the inner workings of a program while preserving its functionality. In the quantum setting, recent works have obtained obfuscation schemes for specialized classes of quantum circuits. For instance, Bartusek,…

Quantum Physics · Physics 2025-10-13 Mi-Ying Huang , Er-Cheng Tang

In quantum computing, quantum circuits are fundamental representations of quantum algorithms, which are compiled into executable functions for quantum solutions. Quantum compilers transform algorithmic quantum circuits into one compatible…

Quantum Physics · Physics 2025-03-18 Qian Wang , Jayden John , Ben Dong , Yuntao Liu

Quantum circuits are the fundamental representation of quantum algorithms and constitute valuable intellectual property (IP). Multiple quantum circuit obfuscation (QCO) techniques have been proposed in prior research to protect quantum…

Quantum Physics · Physics 2025-11-10 Hongyu Zhang , Yuntao Liu

As the quantum computing ecosystem grows in popularity and utility it is important to identify and address the security and privacy vulnerabilities before they can be widely exploited. One major concern is the involvement of third party…

Quantum Physics · Physics 2023-05-05 Suryansh Upadhyay , Swaroop Ghosh

Quantum computing often requires classical data to be supplied to execution environments that may not be fully trusted or isolated. While encryption protects data at rest and in transit, it provides limited protection once computation…

Cryptography and Security · Computer Science 2026-03-19 Amal Raj , Vivek Balachandran

We show how to obfuscate pseudo-deterministic quantum circuits in the classical oracle model, assuming the quantum hardness of learning with errors. Given the classical description of a quantum circuit $Q$, our obfuscator outputs a quantum…

Quantum Physics · Physics 2023-11-21 James Bartusek , Fuyuki Kitagawa , Ryo Nishimaki , Takashi Yamakawa

With the rapid advancement of quantum computing, quantum compilation has become a crucial layer connecting high-level algorithms with physical hardware. In quantum cloud computing, compilation is performed on the cloud platforms, which…

Quantum Physics · Physics 2025-09-16 Chenyi Zhang , Tao Shang , Xueyi Guo , Yuanjing Zhang

Circuit compilation, a crucial process for adapting quantum algorithms to hardware constraints, often operates as a ``black box,'' with limited visibility into the optimization techniques used by proprietary systems or advanced open-source…

Quantum Physics · Physics 2025-04-29 Satwik Kundu , Swaroop Ghosh

In recent years, quantum computing has started to demonstrate superior efficiency to classical computing. In quantum computing, quantum circuits that implement specific quantum algorithms are usually not directly executable on quantum…

Quantum Physics · Physics 2025-08-19 Yuntao Liu , Jayden John , Qian Wang

Virtual black-box obfuscation is a strong cryptographic primitive: it encrypts a circuit while maintaining its full input/output functionality. A remarkable result by Barak et al. (Crypto 2001) shows that a general obfuscator that…

Quantum Physics · Physics 2020-11-24 Gorjan Alagic , Zvika Brakerski , Yfke Dulek , Christian Schaffner
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