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The purpose of digital image scrambling technology is to put a meaningful image into a disordered one to enhance the resistance ability against illegal attacks so as to improve security. This paper proposes an image scrambling transformation method based on the idea of inverse transformation in finite integer domain. It includes gray transformation and position transformation. At the same time, it...
In recent years, there has been increasing trend for multimedia applications to use delegate service providers for content distributions. These delegate services have brought new challenges to the protection of multimedia content confidentiality. Encryption can be used to hide information from unauthorized individuals, either in transit or in storage. This technique transforms the content into unintelligible...
This paper presents a recursive computational multi-secret sharing technique that hides k-2 secrets of size b each into n shares of a single secret S of size b, such that any k of the n shares suffice to recreate the secret S as well as all the hidden secrets. This may act as a steganographic channel to transmit hidden information or used for authentication and verification of shares and the secret...
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