Method and system for transmitting electronic value information
First Claim
1. A method of transmitting electronic value information for transferring electronic value information between terminals, the method comprising the steps of:
- authenticating each other between a transmission source terminal being a transmission source of the electronic value information and a transmission destination terminal being a transmission destination using common authentication information;
sharing authentication for sharing common information obtained by the authentication between the transmission source terminal and the transmission destination terminal;
encrypting data including the electronic value information to be transmitted from the transmission source terminal to the authenticated transmission destination terminal;
transferring value information for transmitting the electronic value information encrypted in the step of encrypting to the transmission destination terminal when the transmission source terminal and the transmission destination terminal are recognized with each other in the step of authenticating;
temporarily invalidating the electronic value information left in the transmission source terminal;
transmitting reception confirmation for returning reception confirmation to the transmission source terminal when the transmission destination terminal completes reception of the electronic value information;
deleting value information for deleting the invalidated electronic value information left in the transmission source terminal when the transmission source terminal receives the reception confirmation;
transmitting validation information to the transmission destination terminal after the deletion of the electronic value information in order to validate the electronic value information; and
validating value information for receiving the validation information and validating the electronic value information by the transmission destination terminal.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
20 Citations
17 Claims
-
1. A method of transmitting electronic value information for transferring electronic value information between terminals, the method comprising the steps of:
-
authenticating each other between a transmission source terminal being a transmission source of the electronic value information and a transmission destination terminal being a transmission destination using common authentication information; sharing authentication for sharing common information obtained by the authentication between the transmission source terminal and the transmission destination terminal; encrypting data including the electronic value information to be transmitted from the transmission source terminal to the authenticated transmission destination terminal; transferring value information for transmitting the electronic value information encrypted in the step of encrypting to the transmission destination terminal when the transmission source terminal and the transmission destination terminal are recognized with each other in the step of authenticating; temporarily invalidating the electronic value information left in the transmission source terminal; transmitting reception confirmation for returning reception confirmation to the transmission source terminal when the transmission destination terminal completes reception of the electronic value information; deleting value information for deleting the invalidated electronic value information left in the transmission source terminal when the transmission source terminal receives the reception confirmation; transmitting validation information to the transmission destination terminal after the deletion of the electronic value information in order to validate the electronic value information; and validating value information for receiving the validation information and validating the electronic value information by the transmission destination terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of transmitting electronic value information for transferring electronic value information between terminals, the method comprising the steps of:
-
authenticating each other between a transmission source terminal being a transmission source of the electronic value information and a transmission destination terminal being a transmission destination using common authentication information; sharing authentication for sharing common information obtained by the authentication between the transmission source terminal and the transmission destination terminal; dividing the electronic value information into transmission units having no meaning as electronic value information; transferring value information for transmitting one transmission unit generated in the step of dividing the electronic value information when the terminals are recognized with each other in the step of authenticating; transmitting reception confirmation for returning reception confirmation to the transmission source terminal when the transmission destination terminal receives the transmission unit; deleting unit information for deleting the one transmission unit left in the transmission source terminal when the transmission source terminal receives the reception confirmation; wherein when the transmission source terminal receives the reception confirmation, a next transmission unit subsequent to the one transmission unit is transmitted, when the transmission destination terminal receives the next transmission unit, a next transmission unit left in the transmission source terminal is deleted, and when the transmission units of the electronic value information are completely transferred, the electronic value information is reconstructed. - View Dependent Claims (11)
-
-
12. A method of transmitting electronic value information for transferring electronic value information between terminals, the method comprising the steps of:
-
authenticating each other between a transmission source terminal being a transmission source of the electronic value information and a transmission destination terminal being a transmission destination using common authentication information; sharing authentication for sharing common information obtained by the authentication between the transmission source terminal and the transmission destination terminal; generating a random number; encrypting value information for encrypting the electronic value information using the random number generated in the step of generating a random number when the terminals are recognized with each other in the step of authenticating; encrypting data including the electronic value information to be transmitted from the transmission source terminal to the authenticated transmission destination terminal; transferring value information for transmitting the electronic value information encrypted in the step of encrypting when the transmission source terminal and the transmission destination terminal are recognized with each other in the step of authenticating; invalidating for temporarily invalidating or deleting the electronic value information left in the transmission source terminal; transmitting reception confirmation for returning reception confirmation to the transmission source terminal when the transmission destination terminal completes reception of the electronic value information; transmitting the random number to the transmission destination terminal after completion of invalidating the electronic value information left in the transmission source terminal in the step of invalidating; decrypting the encrypted electronic value information using the random number; and deleting value information for deleting the invalidated electronic value information left in the transmission source terminal when the transmission destination terminal decrypts the electronic value information.
-
-
13. An electronic value-information transmission system for transferring electronic value information between terminals,
wherein a transmission source terminal to be a transmission source of the electronic value information includes transmission-destination terminal authentication means for performing mutual authentication with a transmission destination terminal being a transmission destination of the electronic value information using common authentication information; -
transmission and receiving means for transmitting the electronic value information to the transmission destination terminal when the transmission-destination terminal authentication means authenticates the transmission destination and for receiving reception confirmation for the encrypted electronic value information; invalidation means for temporarily invalidating the electronic value information left in the transmission source terminal after transmission of the electronic value information; value-information deleting means for deleting the invalidated electronic value information and all the information related to the electronic value information when the reception confirmation of the electronic value information is received; and information-validation control means for the transmission destination terminal generating validation information in order to validate the electronic validation information after deleting the electronic value information, the transmission destination terminal to be a transmission destination of the electronic value information includes transmission-source terminal authenticating means for authenticating the transmission source terminal using the authentication information with the transmission source terminal; transmission and receiving means for receiving encrypted electronic value information transmitted from the transmission source terminal and for transmitting reception confirmation for receiving the electronic value information to the transmission source terminal; decrypting value information means for decrypting the encrypted electronic value information using the authentication information; and validating value information means for validating the decrypted electronic validation information based on the validation information. - View Dependent Claims (14, 15)
-
-
16. An electronic value-information transmission system for transferring electronic value information between terminals,
wherein a transmission source terminal to be a transmission source of the electronic value information includes transmission-destination terminal authentication means for performing mutual authentication with a transmission destination terminal being a transmission destination of the electronic value information using common authentication information; -
value-information dividing means for dividing the electronic value information into transmission units having no meaning as electronic value information when the transmission-destination terminal authentication means authenticates the transmission destination terminal; transmission and receiving means for transmitting divided electronic value information by the value-information dividing means to the transmission destination terminal and receiving reception confirmation for the divided electronic value information; and value-information deleting for deleting the transmission unit left in the terminal when the transmission source terminal receives the reception confirmation of the electronic value information, the transmission destination terminal to be a transmission destination of the electronic value information includes transmission-source terminal authenticating means for authenticating the transmission source terminal using the authentication information with the transmission source terminal; and transmission and receiving means for receiving divided electronic value information transmitted from the transmission source terminal and for transmitting reception confirmation for receiving the electronic value information to the transmission source terminal, wherein when the transmission source terminal receives the reception confirmation, a transmission unit next to the transmission unit is transmitted, when the transmission destination terminal receives the next transmission unit, the next transmission unit left in the transmission source terminal is deleted, and when the transmission unit of the electronic value information is completely transferred, the electronic value information is reconstructed.
-
-
17. An electronic value-information transmission system for transferring electronic value information between terminals,
wherein a transmission source terminal to be a transmission source of the electronic value information includes transmission-destination terminal authentication means for performing mutual authentication with a transmission destination terminal being a transmission destination of the electronic value information using common authentication information; -
random-number generating means for generating a random number; value-information encrypting means for encrypting the electronic value information using the random number generated by the random-number generating means when the transmission destination terminal is recognized by the transmission-destination terminal authentication means; transmission and receiving means for transmitting encrypted electronic value information by the value-information dividing means to the transmission destination terminal and receiving reception confirmation for the encrypted electronic value information; invalidating means for temporarily invalidating or deleting the electronic value information left in the transmission source terminal when receiving reception confirmation from the transmission destination terminal; random-number transmitting means for transmitting the random number to the transmission destination terminal after completion of invalidating the electronic value information left in the transmission source terminal by the invalidating means; and value-information deleting means for deleting the invalidated electronic value information left in the transmission source terminal when the transmission destination terminal decrypts the electronic value information, and the transmission destination terminal to be a transmission destination of the electronic value information includes transmission-source terminal authenticating means for authenticating the transmission source terminal using the authentication information with the transmission source terminal; transmission and receiving means for receiving encrypted electronic value information transmitted from the transmission source terminal and for transmitting reception confirmation for receiving the electronic value information to the transmission source terminal; and value-information decrypting means for decrypting the encrypted electronic value information using the random number, wherein the transmission source terminal receives reception confirmation of the encrypted electronic value information from the transmission source terminal, invalidates or deletes the electronic value information, then transmits the random number used for encryption of the electronic value information, and the transmission destination terminal decrypts the electronic value information.
-
Specification