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1. 发明授权

EP0821504B1 Method and system for depositing private key used in RSA cryptosystem 失效
标题翻译：用于存储在RSA密码系统中使用的秘密密钥的方法和设备
公开(公告)号：EP0821504B1
公开(公告)日：2003-10-22
申请号：EP97112942.4
申请日：1997-07-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Obata, Masanori , Sugiyama, Hiroyuki , Okukawa, Moribumi , Okamoto, Tatsuaki
IPC分类号： H04L9/08
CPC分类号： H04L9/302 , H04L9/0822 , H04L9/0825

2. 发明公开

EP0391261A3 Method and apparatus for implementing electronic cash 失效
标题翻译：实现电子现金的方法和装置
公开(公告)号：EP0391261A3
公开(公告)日：1991-10-09
申请号：EP90106071.5
申请日：1990-03-29
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Ohta, Kazuo , Okamoto, Tatsuaki
IPC分类号： G07F7/10
CPC分类号： G06Q20/06 , G06Q20/0855 , G06Q20/29 , G06Q20/3678 , G06Q20/3825 , G07F7/1016 , H04L9/302 , H04L9/321 , H04L9/3257 , H04L2209/56
摘要： In an electronic cash implementing method, a user makes a bank apply a blind signature to user information Vi produced, by a one-way function, from secret information Si containing identification information, thereby obtaining signed user information. Further, the user makes the bank apply a blind signature to information containing authentication information Xi produced, by a one-way function, from random information Ri, thereby obtaining signed authentication information. The user (200) uses an information group containing the signed user information, the signed authentication information, the user information and the authentication information, as electronic cash for payment to a shop. The shop (300) verifies the validity of the signed user information and the signed authentication information, and produces and sends to the user an inquiry. In response to the inquiry the user produces a response Yi by using secret information and random information and sends it to the shop. Having verified the validity of the response the shop accepts the electronic cash.

3. 发明授权

EP0807910B1 Electronic cash implementing method with a surveillance institution, and user apparatus and surveillance institution apparatus for implementing the same 失效
标题翻译：与监视设备引入电子货币的方法相同的方法，Gebrauchervorrichtung和监测装置，用于执行
公开(公告)号：EP0807910B1
公开(公告)日：2008-06-04
申请号：EP97107804.3
申请日：1997-05-13
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Okamoto, Tatsuaki
IPC分类号： G06Q20/00
CPC分类号： G07F7/1016 , G06Q20/06 , G06Q20/0855 , G06Q20/10 , G06Q20/3674 , G06Q20/3678 , G06Q20/3825 , G06Q30/04 , H04L9/3257 , H04L2209/56

4. 发明公开

EP0821504A3 Method and system for depositing private key used in RSA cryptosystem 失效
标题翻译：用于存储在RSA密码系统中使用的秘密密钥的方法和设备
公开(公告)号：EP0821504A3
公开(公告)日：2000-12-06
申请号：EP97112942.4
申请日：1997-07-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Obata, Masanori , Sugiyama, Hiroyuki , Okukawa, Moribumi , Okamoto, Tatsuaki
IPC分类号： H04L9/08
CPC分类号： H04L9/302 , H04L9/0822 , H04L9/0825
摘要： A scheme for depositing a private key used in the RSA cryptosystem which is capable of maintaining the private key more safely, without requiring a user to always carry around a storage medium. In this scheme, a private key of a user is divided into a first partial private key and a second partial private key at a user's entity, where the first partial private key is set to be maintained at the user's entity, while the second partial private key is deposited from the user's entity to the other entity. Then, the second partial private key is delivered from the other entity to the user's entity in response to a request from the user's entity, and the first partial private key maintained at the user's entity and the second partial private key delivered from the other entity are composed so as to obtain the private key to be used in a processing according to the RSA cryptosystem at the user's entity. This scheme can be generalized to a case of dividing the private key into a plurality of partial private keys.

5. 发明公开

EP0856821A3 Method of settling charges 失效
标题翻译：用于检测费的方法
公开(公告)号：EP0856821A3
公开(公告)日：1998-10-28
申请号：EP98104503.2
申请日：1993-09-16
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Ishiguro, Ginya , Muta, Toshiyasu , Sakita, Kazutaka , Miyaguchi, Shoji , Okamoto, Tatsuaki , Fujioka, Atsushi
IPC分类号： G07F7/10
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3672 , G06Q20/3674 , G06Q20/3676 , G06Q20/3829 , G06Q20/401 , G06Q20/40975 , G06Q40/02 , H04L9/3226 , H04L9/3247 , H04L9/3273 , H04L9/3297 , H04L2209/56
摘要： An IC card (6) has a card information memory area wherein there are written a master public key nA, card secret keys pU and qU, a card public key nU, a card identification number IDU, and a first master digital signature SA1 for information including the card identification number. An IC card terminal (2a, 2b) has terminal information memory area wherein there are written a master public key nA, terminal secret keys pT and qT, a terminal public key nT, a terminal identification number IDT, and a second master digital signature SA2 for information including the terminal identification number IDT. When inserted into the IC card terminal, the IC card sends thereto the data nU, IDU, and SA1. The IC card terminal verifies the digital signature SA1 by the master public key nA and, if it is valid, transmits the data nT, IDT and SA2 to the IC card. The IC card verifies the digital signature SA2 by the master public key nA and, if it is valid, transmits information corresponding to the current remainder value V to the IC card terminal. The IC card terminal makes a check to see if the received information corresponding to the remainder value V is appropriate, and if so, becomes enabled for providing a service.

6. 发明公开

EP0856822A3 Method for settlement of charges by an IC card and method for registering a password used therein 失效
标题翻译：用于通过智能卡和方法的装置中的检测的费用的方法，用于存储其中使用的密码
公开(公告)号：EP0856822A3
公开(公告)日：1998-10-21
申请号：EP98104504.0
申请日：1993-09-16
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Ishiguro, Ginya , Muta, Toshiyasu , Sakita, Kazutaka , Miyaguchi, Shoji , Okamoto, Tatsuaki , Fujioka, Atsushi
IPC分类号： G07F7/10
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3672 , G06Q20/3674 , G06Q20/3676 , G06Q20/3829 , G06Q20/401 , G06Q20/40975 , G06Q40/02 , H04L9/3226 , H04L9/3247 , H04L9/3273 , H04L9/3297 , H04L2209/56
摘要： An IC card (6) has a card information memory area wherein there are written a card identification number IDU, a predetermined setting number Ns, a first master digital signature SA4 for said setting number Ns and a second master digital signature SA5 for information including said card identification number IDU and said first master digital signature SA4. An IC card terminal (2a, 2b) has terminal information memory area wherein there are written a master public key nA for verification of a master digital signature, terminal secret keys pT and qT for the creation of a terminal digital signature and a terminal public key nT for verification of said terminal digital signature. When inserted into the IC card terminal, said IC card transmits said card identification number IDU and said first and second master digital signatures to said IC card terminal; said IC card terminal verifies said second master digital signature SA5 and, if valid, instructs the entering of a password and transmits a password Nc' to said IC card when it is entered; said IC card matches said password Nc' with a password Nc stored in said card information memory means and, if they match, transmits an authentication signal to said IC card terminal; and upon receiving said authentication signal said IC card terminal becomes enabled for providing a service and, after completion of said service, records information including an amount value V for said service and said received card identification number IDU, as usage/management information in usage/management memory means.

7. 发明公开

EP0821504A2 Method and system for depositing private key used in RSA cryptosystem 失效
标题翻译：埃菲尔铁塔和爱因斯坦帝国在einem RSA-Kryptosystem benutztenGeheimschlüssels
公开(公告)号：EP0821504A2
公开(公告)日：1998-01-28
申请号：EP97112942.4
申请日：1997-07-28
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Obata, Masanori , Sugiyama, Hiroyuki , Okukawa, Moribumi , Okamoto, Tatsuaki
IPC分类号： H04L9/08
CPC分类号： H04L9/302 , H04L9/0822 , H04L9/0825
摘要： A scheme for depositing a private key used in the RSA cryptosystem which is capable of maintaining the private key more safely, without requiring a user to always carry around a storage medium. In this scheme, a private key of a user is divided into a first partial private key and a second partial private key at a user's entity, where the first partial private key is set to be maintained at the user's entity, while the second partial private key is deposited from the user's entity to the other entity. Then, the second partial private key is delivered from the other entity to the user's entity in response to a request from the user's entity, and the first partial private key maintained at the user's entity and the second partial private key delivered from the other entity are composed so as to obtain the private key to be used in a processing according to the RSA cryptosystem at the user's entity. This scheme can be generalized to a case of dividing the private key into a plurality of partial private keys.
摘要翻译：用于存储在RSA密码系统中使用的私钥的方案，其能够更安全地维护私钥，而不需要用户总是携带存储介质。在该方案中，用户的私钥在用户的实体被划分为第一部分私钥和第二部分私钥，其中第一部分私钥设置为维持在用户的实体，而第二部分私钥密钥从用户的实体存储到另一个实体。然后，响应于来自用户实体的请求，第二部分私钥从另一个实体传送到用户的实体，并且保持在用户实体的第一部分私钥和从另一个实体传递的第二部分私钥是组合以获得在用户实体的根据RSA密码系统的处理中使用的私钥。该方案可以推广到将私钥划分成多个部分私钥的情况。

8. 发明授权

EP0772165B1 Electronic cash implementing method using an anonymous public key license 失效
标题翻译：电子货币Implentieren方法与匿名公共密钥的许可证的帮助
公开(公告)号：EP0772165B1
公开(公告)日：2004-08-25
申请号：EP96117686.4
申请日：1996-11-05
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Fujisaki, Eiichiro , Okamoto, Tatsuaki , Ohta, Kazuo
IPC分类号： G07F7/10
CPC分类号： H04L9/3249 , G06Q20/02 , G06Q20/06 , G06Q20/3678 , G06Q20/3829 , G06Q20/383 , G06Q20/403 , G07F7/1016 , H04L9/302 , H04L9/3221 , H04L9/3257 , H04L2209/42 , H04L2209/56

9. 发明授权

EP0588339B1 Method of settling charges by using IC cards 失效
标题翻译：处理用于通过芯片卡装置结算
公开(公告)号：EP0588339B1
公开(公告)日：1998-12-09
申请号：EP93114917.3
申请日：1993-09-16
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Ishiguro, Ginya , Muta, Toshiyasu , Sakita, Kazutaka , Miyaguchi, Shoji , Okamoto, Tatsuaki , Fujioka, Atsushi
IPC分类号： G07F7/10 , G06F15/00
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3672 , G06Q20/3674 , G06Q20/3676 , G06Q20/3829 , G06Q20/401 , G06Q20/40975 , G06Q40/02 , H04L9/3226 , H04L9/3247 , H04L9/3273 , H04L9/3297 , H04L2209/56

10. 发明公开

EP0856821A2 Method of settling charges 失效
标题翻译： Methode zur Feststellung vonGebühren
公开(公告)号：EP0856821A2
公开(公告)日：1998-08-05
申请号：EP98104503.2
申请日：1993-09-16
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： Ishiguro, Ginya , Muta, Toshiyasu , Sakita, Kazutaka , Miyaguchi, Shoji , Okamoto, Tatsuaki , Fujioka, Atsushi
IPC分类号： G07F7/10
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3672 , G06Q20/3674 , G06Q20/3676 , G06Q20/3829 , G06Q20/401 , G06Q20/40975 , G06Q40/02 , H04L9/3226 , H04L9/3247 , H04L9/3273 , H04L9/3297 , H04L2209/56
摘要： An IC card (6) has a card information memory area wherein there are written a master public key nA, card secret keys pU and qU, a card public key nU, a card identification number IDU, and a first master digital signature SA1 for information including the card identification number. An IC card terminal (2a, 2b) has terminal information memory area wherein there are written a master public key nA, terminal secret keys pT and qT, a terminal public key nT, a terminal identification number IDT, and a second master digital signature SA2 for information including the terminal identification number IDT. When inserted into the IC card terminal, the IC card sends thereto the data nU, IDU, and SA1. The IC card terminal verifies the digital signature SA1 by the master public key nA and, if it is valid, transmits the data nT, IDT and SA2 to the IC card. The IC card verifies the digital signature SA2 by the master public key nA and, if it is valid, transmits information corresponding to the current remainder value V to the IC card terminal. The IC card terminal makes a check to see if the received information corresponding to the remainder value V is appropriate, and if so, becomes enabled for providing a service.
摘要翻译： IC卡（6）具有卡信息存储区域，其中写有主公开密钥nA，卡秘密密钥pU和qU，卡公开密钥nU，卡标识号IDU和用于信息的第一主数字签名SA1 包括卡片识别号码。 IC卡终端（2a，2b）具有终端信息存储区域，其中写有主公开密钥nA，终端秘密密钥pT和qT，终端公钥nT，终端标识号IDT和第二主数字签名SA2 用于包括终端识别号码IDT的信息。当插入IC卡终端时，IC卡向其发送数据nU，IDU和SA1。 IC卡终端通过主公开密钥nA验证数字签名SA1，如果有效，则将数据nT，IDT，SA2发送给IC卡。 IC卡通过主公开密钥nA验证数字签名SA2，并且如果有效，则向IC卡终端发送与当前剩余值V相对应的信息。 IC卡终端进行检查以查看与余数值V对应的接收信息是否合适，如果是，则能够提供服务。

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