A method and system of transmitting electronic value information between
terminals. The method includes the steps of: authenticating each other
between a transmission source terminal and a destination terminal;
sharing authentication for common information obtained by the
authentication; encrypting data including the electronic value
information to be transmitted; transferring the encrypted electronic
value information to the destination terminal when the terminals are
recognized with each other; temporarily invalidating the electronic value
information left in the source terminal; transmitting reception
confirmation to the source terminal when the destination terminal
completes reception of the electronic value information; deleting the
invalidated electronic value information left in the source terminal when
the reception confirmation is received by the source terminal;
transmitting validation information to the destination terminal after the
deletion of the electronic value information in order to validate the
electronic value information; receiving and validating the electronic
value information by the destination terminal.