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1. 发明专利

DE60310485D1 未知
公开(公告)号：DE60310485D1
公开(公告)日：2007-02-01
申请号：DE60310485
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , ISHII KAZUHIKO , MORI KENSAKU , AONO HIROSHI , HONGO SADAYUKI
IPC分类号： B42D15/10 , H04L29/06 , G06F13/00 , G06F21/33 , G06F21/34 , G06F21/44 , G06K17/00 , G06K19/00 , G06Q50/00 , G07F7/08 , G07F7/10 , H04L29/12 , H04W4/02 , H04W8/08 , H04W28/00 , H04W92/08
摘要： Each IC card 1 notifies a server 3 of the ID of the IC card and the connection information of a terminal device to which the IC card is connected. The server 3 stores the ID and the connection information in a database 4 while associating the ID and the connection information with each other. When an IC card 1 communicates with another IC card, the IC card 1 requests the connection information concerning the destination IC card from the server 3 while specifying the ID of this IC card. The server 3 searches the database 4 for the connection information corresponding to the ID specified by the request, and notifies the requesting IC card 1 of the acquired connection information. This enables communications between IC cards even if the terminal device to which a destination IC card is connected has been changed in the past.

2. 发明专利

DE60316222T2 未知
公开(公告)号：DE60316222T2
公开(公告)日：2008-06-19
申请号：DE60316222
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , AONO HIROSHI , ISHII KAZUHIKO , MORI KENSAKU , HONGO SADAYUKI
IPC分类号： G06K19/10 , G07F7/10 , G06Q20/00 , G06Q20/06 , G07F7/08 , G09C1/00 , H04L9/14
摘要： A cryptographic communication method between IC cards in an electronic ticket distribution system is provided, wherein when a server and a user terminal, to each of which an IC card is connected, begin mutual data-communication or when an IC card and a ticket collecting machine begin mutual data-communication, they both dynamically change encryption algorithms for mutual authentication and for concealment of contents to be transmitted in accordance with information about commonly usable encryption algorithms exchanged at the beginning of a mutual authentication between them, and this procedure at the beginning of the mutual authentication can result in a speedy and secured cryptographic communication between them.

3. 发明专利

DE602005015305D1 未知
公开(公告)号：DE602005015305D1
公开(公告)日：2009-08-20
申请号：DE602005015305
申请日：2005-04-21
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , MORI K , TERADA M , ISHII K , HONGO S
IPC分类号： G06Q10/00 , G06K17/00 , G06Q20/00 , G06Q20/06 , G06Q20/34 , G06Q50/00 , G07F7/08
摘要： An electronic value exchange system 100 comprises a mobile terminal 10 and a mobile terminal 20. The mobile terminal 10 causes a driver 12 to transmit an exchange offer message of electronic value V1, V2 to the mobile terminal 20. The mobile terminal 20 stores handlers that the driver 12 can execute in relationship to a message in a common table 221, and acquires a handler corresponding to the above-mentioned offer message, and notifies the exchange offer contents based on the handler to an application program 21. If the application program 21 consents to the offer contents according to the operation of a user, the electronic value V2 stored in an IC card 23 is transmitted to an IC card 13 via a driver 22 and the driver 12.

4. 发明专利

DE60307561T2 未知
公开(公告)号：DE60307561T2
公开(公告)日：2007-09-13
申请号：DE60307561
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , MORI KENSAKU , ISHII KAZUHIKO , AONO HIROSHI , HONGO SADAYUKI
IPC分类号： G07B1/00 , H04L29/06 , G06F1/00 , G06F15/00 , G06F21/10 , G06K17/00 , G06K19/10 , G06Q10/00 , G06Q20/00 , G06Q20/30 , G06Q20/34 , G06Q20/36 , G06Q20/40 , G06Q20/42 , G06Q40/00 , G06Q40/02 , G06Q50/00 , G09C1/00 , H04L9/32
摘要： The object of the present invention is to prevent the fraudulent copying and creation of digital contents. A digital contents issuing system according to the present invention issues digital contents to be stored in an IC card 1. The digital contents issuing system comprises a first server 11 and a second server 3 configured to carry out an authentication regarding whether the first server 11 has the authority to execute a CREATE command or not. The first server 11 executes the CREATE command so as to create and store the digital contents in the IC card 1, when the first server 11 is authenticated, and found to have the authority.

5. 发明专利

DE60303158D1 未知
公开(公告)号：DE60303158D1
公开(公告)日：2006-04-06
申请号：DE60303158
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , ISHII INT PROP DEPT , MORI INT PROP DEPT , AONO INT PROP DEPT , HONGO INT PROP DEPT
IPC分类号： B42D15/10 , G06F15/00 , H04L29/06 , G06K17/00 , G07F7/10 , H04M11/00
摘要： When direct communication is performed between a cellular phone 2a having an IC card 1a inserted in its slot and a cellular phone 2b having an IC card 1b inserted in its slot, the IC cards 1a and 1b perform mutual authentication, and then notify each other of the IDs of the IC cards and the connection information of the cellular phones. Subsequently, one IC card 1 capable of connecting to a server 3 performs mutual authentication with the server 3, and then notifies the server 3 of the ID and the connection information concerning the other IC card. Thus, even if the other IC card is in a state where it cannot directly communicate with the server 3, the ID and the connection information concerning the other IC card can be managed in the server 3.

6. 发明专利

DE60315552T2 未知
公开(公告)号：DE60315552T2
公开(公告)日：2008-05-21
申请号：DE60315552
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , AONO HIROSHI , ISHII KAZUHIKO , MORI KENSAKU , HONGO SADAYUKI
IPC分类号： G07B1/00 , G06K17/00 , G06K19/00 , G06K19/10 , G06Q10/00 , G06Q20/00 , G06Q20/06 , G06Q20/34 , G06Q50/00 , G07C9/00 , G07F7/08 , G07F7/10 , H04L9/08 , H04L9/14 , H04L9/32
摘要： Between an IC card (1) and an electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed. Between an IC card (1) and an electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed.

7. 发明专利

DE60316222D1 未知
公开(公告)号：DE60316222D1
公开(公告)日：2007-10-25
申请号：DE60316222
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , AONO HIROSHI , ISHII KAZUHIKO , MORI KENSAKU , HONGO SADAYUKI
IPC分类号： G06K19/10 , G07F7/10 , G06Q20/00 , G06Q20/06 , G07F7/08 , G09C1/00 , H04L9/14
摘要： A cryptographic communication method between IC cards in an electronic ticket distribution system is provided, wherein when a server and a user terminal, to each of which an IC card is connected, begin mutual data-communication or when an IC card and a ticket collecting machine begin mutual data-communication, they both dynamically change encryption algorithms for mutual authentication and for concealment of contents to be transmitted in accordance with information about commonly usable encryption algorithms exchanged at the beginning of a mutual authentication between them, and this procedure at the beginning of the mutual authentication can result in a speedy and secured cryptographic communication between them.

8. 发明专利

DE3751758D1 未知
公开(公告)号：DE3751758D1
公开(公告)日：1996-05-02
申请号：DE3751758
申请日：1987-08-27
申请人： HITACHI LTD , HITACHI MICROCOMPUTER SYST , SAKAMURA KEN
发明人： SAKAMURA KEN , KAWASAKI IKUYA , HASEGAWA ATSUSHI , IWASAKI KAZUHIKO , TONOMURA MOTONOBU
IPC分类号： G06F9/305 , G06F7/00 , G06F9/30 , G06F9/308 , G06F9/318 , G06F9/34
摘要： A microprocessor is disclosed which includes instruction decoding means (4), instruction execution means (6) and information holding means (3), and includes a first step of storing the information obtained by execution of a first instruction in the information holding means (3) and a second step of controlling the instruction execution means on the basis of the information when a second instruction is executed.

9. 发明专利

DE60310485T2 未知
公开(公告)号：DE60310485T2
公开(公告)日：2007-10-04
申请号：DE60310485
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , ISHII KAZUHIKO , MORI KENSAKU , AONO HIROSHI , HONGO SADAYUKI
IPC分类号： B42D15/10 , H04L29/06 , G06F13/00 , G06F21/33 , G06F21/34 , G06F21/44 , G06K17/00 , G06K19/00 , G06Q50/00 , G07F7/08 , G07F7/10 , H04L29/12 , H04W4/02 , H04W8/08 , H04W28/00 , H04W92/08
摘要： Each IC card 1 notifies a server 3 of the ID of the IC card and the connection information of a terminal device to which the IC card is connected. The server 3 stores the ID and the connection information in a database 4 while associating the ID and the connection information with each other. When an IC card 1 communicates with another IC card, the IC card 1 requests the connection information concerning the destination IC card from the server 3 while specifying the ID of this IC card. The server 3 searches the database 4 for the connection information corresponding to the ID specified by the request, and notifies the requesting IC card 1 of the acquired connection information. This enables communications between IC cards even if the terminal device to which a destination IC card is connected has been changed in the past.

10. 发明专利

DE60315552D1 未知
公开(公告)号：DE60315552D1
公开(公告)日：2007-09-27
申请号：DE60315552
申请日：2003-06-10
申请人： NTT DOCOMO INC , SAKAMURA KEN , KOSHIZUKA NOBORU
发明人： SAKAMURA KEN , KOSHIZUKA NOBORU , AONO HIROSHI , ISHII KAZUHIKO , MORI KENSAKU , HONGO SADAYUKI
IPC分类号： G07B1/00 , G06K17/00 , G06K19/00 , G06K19/10 , G06Q10/00 , G06Q20/00 , G06Q20/06 , G06Q20/34 , G06Q50/00 , G07C9/00 , G07F7/08 , G07F7/10 , H04L9/08 , H04L9/14 , H04L9/32
摘要： Between an IC card (1) and an electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed. Between an IC card (1) and an electronic ticket server (2), upon purchasing an electronic ticket a public key cryptosystem is employed for a mutual authentication to keep a strict security, and a shared secret between the electronic ticket and a ticket collecting machine is sent on a secure channel as well as the electronic ticket. Upon usage of the electronic ticket, the IC card (1) and the ticket collecting machine (6) mutually judge whether they carry out the mutual authentication by using a public key cryptosystem or a symmetric key cryptosystem. When they determine to use the symmetric key cryptosystem, they carry out the mutual authentication by using the shared secret exchanged beforehand. When they determine to use the public key cryptosystem, they carry out the mutual authentication by using the same method as that used upon purchasing the electronic ticket. This method of mutual authentication can dynamically switch cryptosystems for cryptographic communication between the IC cards or between the IC card and a tamper resistant device having an equivalent function to an IC card installed in related servers or the ticket collecting machine, based on their judgment of the types of bearers, the required degree of security and the required processing speed.

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