Title :
A new steganographic method based on information sharing via PNG images
Author :
Lee, Che-Wei ; Tsai, Wen-Hsiang
Author_Institution :
Inst. of Multimedia Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
A new steganographic method via PNG images based on the information sharing technique is proposed. The coefficients of the polynomial functions of the Shamir´s (k, n)-threshold secret sharing method are utilized as carriers of a given secret data string to be hidden to generate shares. The shares then are embedded into the alpha-channel plane of a cover PNG image. The resulting stego-image with perceptible white noise is further removed by mapping computed share values into suitable ranges. Appropriate measures for enhancing the security of the proposed method are also described. Experimental results show the effect of the proposed method.
Keywords :
image enhancement; polynomials; security of data; PNG images; Shamir-threshold secret sharing method; information sharing technique; polynomial functions; steganographic method; Cryptography; Data encapsulation; Data mining; Data security; Information security; National security; Pixel; Polynomials; Steganography; White noise; PNG image; data hiding; information sharing; steganography;
Conference_Titel :
Computer and Automation Engineering (ICCAE), 2010 The 2nd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5585-0
Electronic_ISBN :
978-1-4244-5586-7
DOI :
10.1109/ICCAE.2010.5451874
