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    Chapter and Conference Paper

    A Huffman Code Based Image Steganography Technique

    We present here a novel steganographic method based on Huffman coding and the least significant bit substitution in order to provide high embedding capacity, a strong security and imperceptible visual quality ...

    Amitava Nag, Jyoti Prakash Singh, Sushanta Biswas, Debasree Sarkar… in Applied Algorithms (2014)

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    Chapter and Conference Paper

    Image Secret Sharing in Stego-Images with Authentication

    Recently, a polynomial-based (t,n) image sharing and hiding schemes with authentication was proposed to hid n shares of a secret image into n ordinary cover images and form n stego-images that can be transmitt...

    Amitava Nag, Sushanta Biswas… in Quality, Reliability, Security and Robustn… (2013)

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    Chapter and Conference Paper

    An Image Authentication Technique in Frequency Domain Using Secure Hash Algorithm (FDSHA)

    The demand of security is getting higher in these days due to the development of computers and Internet. In this paper, we proposed a novel image authentication scheme in frequency domain using SHA-1 that allo...

    Amitava Nag, Debasish Biswas, Soumadip Ghosh… in Advances in Computing, Communication and C… (2011)