Gamma-protocol for secure transmission of information

TL;DR

This paper introduces a novel quantum-inspired secure communication protocol using radioactive gamma-photon emission, which conceals information effectively and prevents eavesdropping without prior knowledge of emission rates.

Contribution

It proposes a new secure transmission method based on radioactive decay, differing from traditional quantum protocols like BB84, and demonstrates its practical feasibility.

Findings

Successfully transmitted binary information using gamma-photon streams.

Eavesdropping is prevented due to the need for precise emission rate knowledge.

The protocol offers a new approach to secure classical communication using nuclear decay processes.

Abstract

Secure communication that allows only the sender and intended recipient of a message to view its content has a long history. Quantum objects, such as single photons are ideal carriers for secure information transmission because, according to the no-cloning theorem [1], it is impossible to create an identical and independent copy of an arbitrary quantum state while its detection leads to the information distortion. BB84 [2,3] is the first quantum cryptography protocol for a quantum key generation and distribution, based on single photon sources. This quantum key is used for coding and decoding of classical information. We propose completely different protocol based on a stochastic decay of an ensemble of radioactive nuclei randomly emitting a stream of gamma-photons. We experimentally demonstrate a method how to transmit classical information containing binary bits (0 or 1) with the help of this stream. Transmission is organized such that eavesdropping is impossible since the presence of information in the stream of randomly emitted gamma-photons can be hidden. Reading of this information needs precise knowledge of the repetition rate of its sending in advance. It is unrealistic for the eavesdropper to disclose this rate, and without knowledge of this parameter it is impossible to make the transmitted information visible.