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Implementing a Chaotic Cryptosystem by Performing Parallel Computing on Embedded Systems with Multiprocessors.

Abraham Flores-Vergara1,2, Everardo Inzunza-González1, Enrique Efren García-Guerrero1

  • 1UABC, Engineering, Architecture and Design Faculty, 22860 Ensenada, Mexico.

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This study introduces a chaotic cryptosystem for digital images using parallel computing on embedded systems. The optimized system enhances processing speed and security for practical applications.

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Area of Science:

  • Computer Science
  • Cryptography
  • Embedded Systems

Background:

  • Digital color image encryption is crucial for secure communication.
  • Existing chaotic cryptosystems face challenges in efficiency and precision.
  • Embedded systems with multiprocessors offer potential for advanced cryptographic implementations.

Purpose of the Study:

  • To implement and optimize a chaotic cryptosystem for digital color images using parallel computing techniques.
  • To determine the optimal number of processors for improved cryptosystem efficiency.
  • To enhance the security and robustness of the chaotic cryptosystem.

Main Methods:

  • Profiling and parallel computing techniques were applied to a cluster of six embedded systems.
  • A stream encryption method using a pseudo-random number generator with high-precision arithmetic was employed.
  • Parallel data processing with collective communication was utilized for encryption.

Main Results:

  • The optimal number of processors was identified, significantly improving processing speed for chaotic sequence generation and encryption.
  • High numerical precision reduced digital degradation and increased security levels.
  • Security analysis confirmed the cryptosystem's robustness against known attacks.

Conclusions:

  • The proposed chaotic cryptosystem is secure, robust, and efficient.
  • The method is feasible for practical implementation in multiprocessor embedded devices like smartphones and tablets.
  • Parallel computing and high-precision arithmetic are key to advancing chaotic cryptosystems.