Secure Analysis of Optical Steganography with Spectral Signature Measurement

Ben Wu, Ying Tang, Chenxi Qiu, Yuekai Huang, Chaoran Huang, Paul R. Prucnal

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


The threat and defend model of optical steganography based on amplified spontaneous emission noise is experimentally demonstrated. Although the optical delays in a steganography system generate large key space to hide and recover the stealth signals, delays in interferometer introduce spectral fringes that can be identified by the coherent detection attack and thus expose the stealth channel. To defend such attacks, the spectral fringes are removed by with stealth data rate that is beyond the response speed of the coherent detection. Experimental results show that the spectral signatures can be protected by both wideband property of spontaneous emission noise and setting up the optical delays and data rate within the secure range. Such defending method can guide the design of a secure optical steganography system.

Original languageEnglish (US)
Article number9501966
Pages (from-to)971-974
Number of pages4
JournalIEEE Photonics Technology Letters
Issue number17
StatePublished - Sep 1 2021

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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