Visual Cryptography for Image Secure Shares

Title: Visual Cryptography for Image Secure Shares
Publisher: Guru Nanak Publications
ISSN: 2278-0947
Series: Volume 4 Issue 1
Authors: Seema Rani, Naveen Kumar


Abstract

Security has become an important issue in the world of information technology. In recent years the people from all over the world rely on internet in order to transmit and share their information where they are mostly concerned on information security to protect it. For security purpose people uses symmetric or asymmetric cryptography. Cryptography is the study of mathematical technique or algorithms related to information security. But in the traditional cryptographic approach encryption and decryption both require complex arithmetic computation. Visual cryptography provides information security which uses simple algorithm for encryption and no algorithmic computation for decryption process. With Visual Cryptography technique encryption of image or text can be done with simple arithmetic and decryption can be done directly with human visual system. Rapid growth of digital media has made digital images easy to distribute, duplicate and made changes to it. This paper provides summary of emerging Visual Cryptography techniques for creating image secure shares and application areas where it can be applied.

Keywords

Cryptography, Digital media, Data security, Information hiding, Visual cryptography

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