A (2, 2) secret sharing scheme based on hamming code and AMBTC

Authors:
Cheonshik Kim;Dongkyoo Shin;Dongil Shin;Ching-Nung Yang
Affiliations:
Dep. of Computer Engineering, Sejong University, Seoul, Korea;Dep. of Computer Engineering, Sejong University, Seoul, Korea;Dep. of Computer Engineering, Sejong University, Seoul, Korea;Dept. of Computer Science and Information Engineering, National Dong Hwa University, Hualien, Taiwan, ROC
Venue:
ACIIDS'12 Proceedings of the 4th Asian conference on Intelligent Information and Database Systems - Volume Part II
Year:
2012

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Abstract

We present a secret sharing scheme based on absolute moment block truncation coding (AMBTC) and Hamming code theory. AMBTC is composed of bit planes and two representative gray level pixel values, which are the high and low range means. In this secret sharing scheme, a dealer distributes a secret image to the participants as shadow images. It is important in a secret sharing scheme to keep the shadow images confidential. We therefore propose verifying the authenticity of the reconstructed secret image during the revealing and verifying phase. In order to improve confidentiality, our proposed scheme uses meaningful AMBTC compressed images. Experimental results show that the reconstructed secret sharing images are the same as the original secret sharing images and that the proposed scheme exhibits good performance compared to that of previous schemes.