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Related Concept Videos

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Communication between two animals occurs when one animal transmits an information signal that causes a change in the animal that receives the information. Organisms communicate with one another in a host of different ways. Signals can be auditory, chemical, visual, tactile, or a combination of these. Communication is a critical behavioral adaptation that promotes survival, growth, and reproduction.
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Modified Chaotic Hénon Map-Based Text Information Encryption and Hiding Mechanism Using Bottlenose Dolphin

Chin-Feng Lin1, Ching-Lung Hsieh1, Shun-Hsyung Chang2

  • 1Department of Electrical Engineering, National Taiwan Ocean University, Keelung 20224, Taiwan.

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|May 4, 2026
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Summary
This summary is machine-generated.

This study introduces a novel secure method for covert underwater acoustic communication (CUAC) using bottlenose dolphin vocalizations (BDVs). The developed mechanism offers robust encryption and undetectable data hiding for text information (TI).

Keywords:
bottlenose dolphin vocalizationsencryptionhidingmodified chaotic Hénon maptext information

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Area of Science:

  • Acoustic Communications
  • Signal Processing
  • Cryptography

Background:

  • Growing ocean resource development necessitates secure underwater communication methods.
  • Bionic covert underwater acoustic communication (CUAC) is vital for military and telemetry applications.
  • Existing methods lack sufficient security and undetectability for sensitive underwater data.

Purpose of the Study:

  • To design a highly secure and undetectable text information (TI) encryption mechanism for CUAC.
  • To utilize real bottlenose dolphin vocalizations (BDVs) as a carrier for encrypted data.
  • To develop a modified chaotic Hénon map (MCHM)-based TI encryption and hiding (EH) mechanism.

Main Methods:

  • Integration of a chaotic encryption scheme, spread spectrum (SS) technology, and a modified chaotic Hénon map (MCHM).
  • Implementation of a TI encryption and hiding (EH) mechanism (MCHMTIEHM).
  • Evaluation using four BDVs and four test TIs, employing modified ACC and UACI metrics, and analyzing NCSSBRs, NCBRs, and NCCRs.

Main Results:

  • The MCHMTIEHM demonstrated accurate de-hiding and decryption, with complete TI recovery when correct parameters were used.
  • When parameters were incorrect, the mechanism provided superior correct de-hiding and error decryption, rendering TI unrecoverable and unrecognizable.
  • High hiding performance was confirmed by average modified ACC of 0.99995924 and average UACI of 3.84×10⁻⁶. Error-free decryption achieved 0% NCSSBRs, NCBRs, and NCCRs.

Conclusions:

  • The proposed MCHMTIEHM offers superior encryption and hiding performance for covert underwater acoustic communication.
  • The use of BDVs combined with MCHM provides a secure and effective method for underwater data transmission.
  • The mechanism ensures data confidentiality and integrity, crucial for military and telemetry applications.