Novel steganographic approaches towards authentication and secure transmission of documents

Abstract

Recent growth in digital document transmission and their secured storage has urged the newlineneed for proper copyright protections or ownership claims on such legal digital newlinedocuments. Apart from that content authentication of such documents is also considered newlineto be a vital issue while handling or transmitting such documents. In view of this, secret newlinefabrication of some authentic signature within the host carrier signal or the concern newlinedigital document is considered as the common practice for both content authentication newlineand protection. To be precise, the concept of steganography or watermarking is utilized newlinewhere the secretly hidden ownership signature within the digital document remains newlineimperceptible to the Human Visual System (HVS). The idea here is that only the intended newlinerecipient will be able to sense that signature form the concern document and this newlinesignature embedding should be robust enough to survive the most common signal or newlineimage processing attacks. So, considering the need for maintaining the confidentiality of newlinethe transmitted copyright data, some approaches are now adopting cryptographic ideas newlinefor promoting encryption based stronger form of data hiding practices. Critically two newlineprimary domains are utilized in this process where the spatial domain encodes the secret newlinedata directly on image pixel components. Further the transform domain approach hides newlinethe secret data on transformed frequency components of the cover image for better newlineauthenticity and robustness. newlineHence, in view of such issues, this research concept mainly focuses on some novel newlineconcepts related to secure data hiding which should serve stronger authentications and newlinecontent certifications for the digital color documents. Additionally, the designing of some newlinereliable digital signature protocols is also being the motive in order to tackle the overall newlinedata security issues in secret data transmissions.