Asymmetric locating position of information hiding against tampering

The paper provides a pre-stage of any data hiding method hiding message data in media data and a data extraction method of extracting the hidden data, wherein message data is dispersively hidden in digital media data, such as images, to prevent a third person from forging/modifying the message data easily. More specifically, the technique relates to a data hiding method in which media data is expressed as a media array while message data is expressed as a message array so that the array elements of the message array can be dispersively hidden in the media array randomly by scrambling order of particular array element of the media array based on a private key. It needs to declare that the proposed strategy aims only to enhance the watermark security. It is not used to improve the robustness of watermark. The current version of this paper has had a correction made to it at the request of the author. Please see the linked Errata for further details.