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Related Experiment Video

Updated: Jun 21, 2026

Hybrid µCT-FMT imaging and image analysis
13:45

Hybrid µCT-FMT imaging and image analysis

Published on: June 4, 2015

Analytical Study of Hybrid Techniques for Image Encryption and Decryption.

Chiranji Lal Chowdhary1, Pushpam Virenbhai Patel2, Krupal Jaysukhbhai Kathrotia2

  • 1School of Information Technology and Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.

Sensors (Basel, Switzerland)
|September 15, 2020
PubMed
Summary

This study analyzes hybrid image encryption methods, combining asymmetric (Elliptic Curve Cryptography, ElGamal) and symmetric (Hill Cipher, AES, Double Playfair Cipher) algorithms. Elliptic Curve Cryptography with Hill Cipher offers a robust solution for secure image encryption.

Keywords:
Number of Pixels Change Rate (NPCR)Unified Average Changing Intensity (UACI)advanced encryption standardcryptography algorithmdouble playfair cipherelliptic curve cryptographyencryption and decryptionhill cipherlossy compressionpeak signal to noise ratio

Related Experiment Videos

Last Updated: Jun 21, 2026

Hybrid µCT-FMT imaging and image analysis
13:45

Hybrid µCT-FMT imaging and image analysis

Published on: June 4, 2015

Area of Science:

  • Computer Science
  • Cryptography
  • Digital Image Processing

Background:

  • Image encryption is crucial for digital media security.
  • Existing research often focuses on Advanced Encryption Standard (AES).
  • Hybrid approaches combining symmetric and asymmetric cryptography offer enhanced security and efficiency.

Purpose of the Study:

  • To analyze and compare hybrid image encryption techniques.
  • To evaluate the performance of Elliptic Curve Cryptography (ECC) with Hill Cipher (HC), ECC with AES, and ElGamal with Double Playfair Cipher (DPC).
  • To assess security and efficiency metrics for various hybrid cryptosystems.

Main Methods:

  • Hybridization of asymmetric cryptosystems (ECC, ElGamal) with symmetric cryptosystems (HC, AES, DPC).
  • Performance evaluation based on encryption/decryption time, image entropy, intensity loss, PSNR, NPCR, and UACI.
  • Comparative analysis of different hybrid cryptographic combinations.

Main Results:

  • ECC with AES is suitable for remote communications with smaller images due to encryption/decryption time.
  • ECC with HC demonstrates a good overall performance for image encryption based on metric measurements.
  • Hybrid methods leverage the speed of symmetric algorithms and the security of asymmetric algorithms.

Conclusions:

  • Hybrid cryptosystems offer a balance between speed and security in image encryption.
  • The combination of Elliptic Curve Cryptography and Hill Cipher presents a promising solution for image encryption.
  • Further research can explore other hybrid combinations for optimized image security.