Abstract
Data encryption is widely used to ensure security in open networks such as the internet. Different techniques should be used to protect confidential image data from unauthorized access. Most of the available encryption algorithms are used for text data. However, due to large data size and real time constrains, algorithms that are good for textual data may not be suitable for multimedia data. Visual Cryptography is a simple, fast, visual cryptography technique, to provide privacy protection when transmitting sensitive data between offices. Visual cryptography takes a financial document represented as a bit map file, and expands it into two or more encoded file shares. These shares can be transferred to the recipients via electronic mail or electronic file transfer process. In order to recover the original document, the recipient needs to have only the desired subset of the shares and the decoding program. The idea of the visual cryptography model proposed is to split a secret image into two random shares. The secret image can be reconstructed by stacking the two shares.
Keywords
Encryption
Cryptography
Decoding
Encoding
Authors
How to Cite this Article
C.Rathnakumar, Dr.S.Vijayaragavan (2015).
"A STUDY ON VISUAL CRYPTOGRAPHY TECHNIQUES".
International Journal of Contemporary Research in Computer Science and Technology,
1(3), pp. 66-71.
