A traceable E-cash transfer system against blackmail

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Due to the development of internet and mobile communication technology, E-Commerce is becoming popular. Because the crime is thriving, how to against malicious behavior and protect the victim''s property becomes an important issue. In this paper, we present two novel E-cash transfer system against blackmail. One is applied in the mobile devices. The other is applied with the signature of subliminal channel. The problematic account which is designated by the criminal is able to be traced under the blackmail. And the transfer is still running not alert the criminal. After the transfer is finished, the problematic account will be frozen. However, the criminal doesn''t know the designated account has to be frozen. Therefore, when he/she goes to withdraw the money, he/she will not gain his/her purpose. The subliminal channel is the most popular method which notifies the designated receiver for the blackmail.

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