Secured secret color image sharing with steganography

Secret sharing refers to a method of distributing a secret among a group of participants, each of whom is allocated with a share of the secret. The participant's shares are used to reconstruct the secret. Single individual participants share is of no use. The reversible image sharing approach and threshold schemes are used achieve the novel secret color image sharing. The secret color image pixels will be transformed to m-ary notational system. The reversible polynomial function will be generated using (t-1) digits of secret color image pixels. Secret shares are generated with the help of reversible polynomial function and the participant's numerical key. The secret image and the cover image is embedded together to construct a stego image. The reversible image sharing process is used to reconstruct the secret image and cover image. The secret is obtained by the lagrange's formula generated from the sufficient secret shares. Quantization process is applied to improve the quality of the cover image. Peak signal to noise ratio is applied to analyze the quality of the stego images. The simulation results show that the secret and cover are reconstructed without loss.

[1]  Ja-Chen Lin,et al.  Sharing and hiding secret images with size constraint , 2004, Pattern Recognit..

[2]  Ran-Zan Wang,et al.  Secret image sharing with smaller shadow images , 2006, Pattern Recognit. Lett..

[3]  Chang-Chou Lin,et al.  Secret image sharing with steganography and authentication , 2004, J. Syst. Softw..

[4]  G. R. BLAKLEY.  Safeguarding cryptographic keys , 1979, 1979 International Workshop on Managing Requirements Knowledge (MARK).

[5]  Chin-Chen Chang,et al.  Sharing secrets in stego images with authentication , 2008, Pattern Recognit..

[6]  Ching-Nung Yang,et al.  Improvements of image sharing with steganography and authentication , 2007, J. Syst. Softw..

[7]  Amos Beimel,et al.  Secret Sharing with Public Reconstruction , 1998, IEEE Trans. Inf. Theory.

[8]  Chin-Chen Chang,et al.  A novel secret image sharing scheme in color images using small shadow images , 2008, Inf. Sci..

[9]  Pei-Yu Lin,et al.  Invertible secret image sharing with steganography , 2010, Pattern Recognit. Lett..

[10]  Tzung-Her Chen,et al.  Visual secret sharing by random grids revisited , 2009, Pattern Recognit..

[11]  R.-J. Hwang,et al.  Efficient cheater identification method for threshold schemes , 1997 .

[12]  Moni Naor,et al.  Visual Cryptography , 1994, Encyclopedia of Multimedia.

[13]  Ja-Chen Lin,et al.  Secret image sharing , 2002, Comput. Graph..

[14]  Ning Ma,et al.  Two secret sharing schemes based on Boolean operations , 2007, Pattern Recognit..