Title :
On the security of structural information extraction/embedding for images
Author_Institution :
Inst. of Inf. Sci., Acad. Sinica, Taipei, Taiwan
Abstract :
In addition to robustness and fragility, security is quite an important issue in media authentication systems. This paper first examines the insecurity of several block-based authentication methods under counterfeit attacks. Then, we prove that the proposed digital signature, which is composed of structural information, is content-dependent and provides security against forgery attacks. Experimental results demonstrate the benefits of exploiting structural information in a media authentication system.
Keywords :
discrete wavelet transforms; image processing; message authentication; watermarking; block based authentication methods; content dependent security; counterfeit attack; digital signature; forgery attack; media authentication systems; structural information embedding; structural information extraction; structural information security; Authentication; Cities and towns; Counterfeiting; Data mining; Digital signatures; Discrete cosine transforms; Information science; Information security; Robustness; Watermarking;
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
DOI :
10.1109/ISCAS.2004.1329235
