Perfectly secure steganography: hiding information in the quantum noise of a photograph

Autor:	Sanguinetti, Bruno, Martin, Anthony, Traverso, Giulia, Lavoie, Jonathan, Zbinden, Hugo
Rok vydání:	2015
Předmět:	Quantum Physics Computer Science - Cryptography and Security
Zdroj:	Phys. Rev. A 93, 012336 (2016)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.93.012336
Popis:	We show that the quantum nature of light can be used to hide a secret message within a photograph. Using this physical principle we achieve information-theoretic secure steganography, which had remained elusive until now. The protocol is such that the digital picture in which the secret message is embedded is perfectly undistinguishable from an ordinary photograph. This implies that, on a fundamental level, it is impossible to discriminate a private communication from an exchange of photographs. Comment: 5 pages, 3 figures + appendix : 5 pages, 6 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1509.07106 Zobrazit plný text záznamu View this record from Arxiv