Cryptographic aspects of quantum reading

TL;DR

This paper investigates how quantum reading, leveraging quantum entanglement, can enhance data storage security by enabling confidential retrieval that classical methods cannot achieve.

Contribution

It introduces the concept of using quantum reading for secure data storage, highlighting its potential as a new cryptographic security method.

Findings

Quantum reading can retrieve data securely using entanglement.

Classical strategies cannot access information in the same setting.

Quantum reading offers a new form of technological security for memory.

Abstract

Besides achieving secure communication between two spatially-separated parties, another important issue in modern cryptography is related to secure communication in time, i.e., the possibility to confidentially store information on a memory for later retrieval. Here we explore this possibility in the setting of quantum reading, which exploits quantum entanglement to efficiently read data from a memory whereas classical strategies (e.g., based on coherent states or their mixtures) cannot retrieve any information. From this point of view, the technique of quantum reading can provide a new form of technological security for data storage.