A new sharing secret algorithm in stego images with authentication

Abstract

In the paper, a new sharing secret algorithm in stego images with authentication is presented. The proposed approach employs a novel secret image sharing scheme based on set partitioning in hierarchical trees (SPIHT) algorithm, uses two stego blocks instead of a single block for authentication, and designs the check bits by effectively combining existing authentication ideas with Hamming codes. As a result, it enhances the authentication ability, improves visual quality of the stego images and incorporates an error correction capability of the leading method in the field. Experimental results demonstrate these promising characteristics of this method.