Divisible E-cash Scheme without Trusted Third Party

Aiming at the problems that the divisible E-cash schemes with trusted third party cause additional costs and the level of anonymity is uncertain,an anonymity-revocable and divisible E-cash scheme is proposed without TTP.In this scheme,according to the clue and certificate provided by the judicial organization,the bank requires the user to open the message with the same time stamp,which can realize the trace to E-cash and withdrawer.And the user is aware of this trace.Moreover,E-cash is expressed in plain text so that it is easy to be divided.Through security analysis and performance comparison with some recent schemes,this scheme is safe and effective.