Data Obfuscation for Secure Use of Classical Values in Quantum Computation

TL;DR

This paper introduces a novel data obfuscation technique to protect classical data during quantum computations, addressing security gaps when classical values are encoded into quantum registers in untrusted environments.

Contribution

It presents the first explicit data obfuscation method for classical data in quantum computing, using structured quantum encodings and reversible operations to enhance security.

Findings

Feasibility demonstrated through simulation

Resource analysis highlights practical limitations

Data obfuscation complements existing security measures

Abstract

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 begins, when classical values are encoded into quantum registers. This paper explores data obfuscation for protecting classical values during quantum computation. To the best of our knowledge, we present the first explicit data obfuscation technique designed to protect classical values during quantum execution. We propose an obfuscation technique that encodes sensitive data into structured quantum representations across multiple registers, avoiding direct exposure while preserving computational usability. Reversible quantum operations and amplitude amplification allow selective recovery of valid encodings without revealing the underlying data. We evaluate the feasibility of the proposed method through simulation and analyze its resource requirements and practical limitations. Our results highlight data obfuscation as a complementary security primitive for quantum computing.