Adaptive Encrypted Information Hiding Scheme for Images

Information hiding enables the seller to hide additional bits into multimedia content in an imperceptible manner. In most information hiding schemes for copyright protection, the seller always knows the embedded information uniquely identifying the buyer. However, it causes both framing issue and repudiation issue. To solve these problems, a variety of watermarking protocols have been proposed based on the encrypted information hiding scheme. In this paper, a new encrypted information hiding scheme with adaptive capacity is proposed, and it can improve the resistance against JPEG compression after decryption and detect image tampering at the information extractor. The blind information extracting employs the same threshold criterion and parameters as information embedding. The proposed encrypted information hiding scheme is a new solution to implementing the existing watermarking protocols.