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Securing Color Image Using Combined Elliptic Curve Crypto-System and Hill Cipher Encryption Along with Least Significant Bit - Steganography

  • N. FaizalEmail author
  • S. Sharan
  • Panchami S. Nair
  • Devi S. Sankar
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 98)

Abstract

Security of information is becoming main criteria while transferring information through communication networks. Nowadays images are used as information source; therefore its security from unauthorized or unintended access is important. Image encryption play an important role in protecting images from hacking and stealing while sending over an unsecured channel. The proposed method is a combination of encryption using Hill cipher algorithm along with Elliptic curve for enhanced security. Elliptic curve cryptographic method is used to make the system to asymmetric from the less secured symmetric key encryption technique; hill cipher algorithm. In our proposed method we use both grayscale images as well as color images regardless its size. Steganography of actual image with a cover image before encryption is an advantage. The cover image is selected as it mocks like an informative to unauthorized access. Least Significant Bit (LSB) steganography method is used here as it provides more security than any other methods.

Keywords

Image encryption Visual cryptography Hill cipher Steganography Elliptic curve cryptography 

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • N. Faizal
    • 1
    Email author
  • S. Sharan
    • 1
  • Panchami S. Nair
    • 1
  • Devi S. Sankar
    • 1
  1. 1.Department of Computer ScienceUniversity of KeralaTrivandrumIndia

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