Research on off-line electronic payment scheme based on semi-fragile watermarking
LU Hong-wen · Journal of Northwest Normal University · 2007
Integrating semi-fragile watermarking,steganographia and elliptic curve cryptosystem,a more secure encryption protocol is introduced in the paper.The protocol realizes the steganographia through directly revising the MP3Stego software package.The protocol hides the important message from the sender and the receiver in multimedia files which are not correlative.Because of introducing the elliptic curve cryptosystem,the protocol has more secure intensity.The embedded watermarking is sensitive to distortion and can withstand JPEG compression.A secure scheme for off-line electronic payment is proposed by using the protocol.It can fully make the legal user anonymous,and effectively avoid continuous consumption.It has the explicit and direct function as traditional cash.And it is an effective extension and supplement to the present electronic payment patterns.