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Erschienen in:
2010 | OriginalPaper | Buchkapitel
Secret Sharing Scheme for Image Encryption Using new Transformation Matrix
verfasst von : A. Kalai Selvi, M. Mohamed Sathik
Erschienen in: Information and Communication Technologies
Verlag: Springer Berlin Heidelberg
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This paper proposes image encryption and decryption process using new transformation matrix. The image is divided into zones .The zones are constructed from blocks of size 3 x 3 using secret key. All the zones are combined together to form a new transformation matrix and is used for encryption purpose. The sender sends the secret in the form of polynomial’s function value for their ID value. The receiver reconstructs the secret from the polynomial’s function value. Then form the transformation matrix and decrypt it to get the original image. The comparison of the proposed method with the Cross Chaotic map image encryption method [7] reveals that the proposed method is higher in security and superior in encryption quality and also the share to be sent is smaller.