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1. 发明授权

US09112677B2 Communication device and cryptographic key creation method in cryptographic key sharing system 有权
标题翻译：密码密钥共享系统中的通信设备和加密密钥创建方法
公开(公告)号：US09112677B2
公开(公告)日：2015-08-18
申请号：US14110644
申请日：2012-04-06
申请人： Akihiro Tanaka , Akio Tajima
发明人： Akihiro Tanaka , Akio Tajima
IPC分类号： H04L9/00 , H04L9/08
CPC分类号： H04L9/0816 , H04L9/0838 , H04L9/0861 , H04L9/0894 , H04L2209/34
摘要： A communication device and a cryptographic key creation method are provided that enable efficient creation of cryptographic keys of which different error rates are required. A communication device (11) that performs communication with another communication device (12) through a transmission link includes a cryptographic key sharing section (1103) that share a first cryptographic key with the other communication device, an error rate control section (1115, 1105-1108) that creates second cryptographic keys with error rates according to purposes of use of the cryptographic keys from the first cryptographic key, and an accumulation section (111, 1112) that separately accumulates the plurality of second cryptographic keys with the different error rates.
摘要翻译：提供通信装置和加密密钥创建方法，其能够有效地创建需要不同错误率的密码密钥。通过传输链路与另一通信设备（12）进行通信的通信设备（11）包括：与其他通信设备共享第一密码密钥的密码密钥共享部分（1103），错误率控制部分（1115,1105） -1108），其根据来自第一密码密钥的加密密钥的目的产生具有错误率的第二加密密钥，以及累积部分（111,1112），其分别累积具有不同错误率的多个第二加密密钥。

2. 发明申请

US20110243331A1 SHARED RANDOM NUMBERS MANAGEMENT METHOD AND MANAGEMENT SYSTEM IN SECRET COMMUNICATION NETWORK 审中-公开
标题翻译：秘密通信网络中的共享随机数量管理方法和管理系统
公开(公告)号：US20110243331A1
公开(公告)日：2011-10-06
申请号：US13133844
申请日：2009-12-03
申请人： Wakako Yasuda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
发明人： Wakako Yasuda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
IPC分类号： H04L9/08 , H04L9/00
CPC分类号： H04L9/0662 , H04L9/0836 , H04L9/0852
摘要： In a secret communication network including a center node and multiple remote nodes, the center node is provided with a virtual remote node which functions as a remote node similar to each of the remote nodes. Random numbers shared between the center node and each remote node are managed based on random number sequences used in cipher communication between the virtual remote node and one of the remote nodes.
摘要翻译：在包括中心节点和多个远程节点的秘密通信网络中，中心节点设置有虚拟远程节点，其作为与每个远程节点类似的远程节点。基于在虚拟远程节点和远程节点之间的密码通信中使用的随机数序列来管理中心节点和每个远程节点之间共享的随机数。

3. 发明申请

US20070058810A1 Communication system and synchronization control method 有权
标题翻译：通信系统和同步控制方法
公开(公告)号：US20070058810A1
公开(公告)日：2007-03-15
申请号：US11482016
申请日：2006-07-07
申请人： Akihiro Tanaka , Akio Tajima , Seigo Takahashi , Wakako Maeda
发明人： Akihiro Tanaka , Akio Tajima , Seigo Takahashi , Wakako Maeda
IPC分类号： H04N7/167
CPC分类号： H04L9/0852
摘要： A sender transmits to a receiver an optical signal that is phase-modulated in accordance with source data and a basis stored in a memory. The receiver phase-modulates the received optical signal in accordance with a basis, obtains detection data through interference, and stores the detection data in a memory. An inter-device address difference (GD) and an intra-device address difference (DI) are provisionally set. The detection data are checked against the source data while sequentially changing the values of GD and DI within a predetermined adjustment range. Based on the result of this checking, GD and DI are determined.
摘要翻译：发送方向接收机发送根据源数据和存储在存储器中的基准进行相位调制的光信号。接收机根据基础对接收的光信号进行相位调制，通过干扰获得检测数据，并将检测数据存储在存储器中。临时设置设备间地址差异（G SUB）和设备间地址差异（D SUB I / I）。在预定的调节范围内顺序地改变G D D和D I I的值，检测数据与源数据相对应。基于该检查的结果，确定了G＆D＆D＆D＆gt;和D＆lt; I＆lt; / SUB＆gt;。

4. 发明申请

US20060093143A1 Method and system for generating shared information 有权
公开(公告)号：US20060093143A1
公开(公告)日：2006-05-04
申请号：US11261669
申请日：2005-10-31
申请人： Wakako Maeda , Akio Tajima , Akihiro Tanaka
发明人： Wakako Maeda , Akio Tajima , Akihiro Tanaka
IPC分类号： H04K1/00
CPC分类号： H04L9/0852 , H04L2209/34
摘要： A sender sends original random-number data to a receiver through a quantum channel. The receiver generates a raw key from information received through the quantum channel and notifies the received information to the sender. The sender performs received-bit comparison and basis reconciliation based on the received information and provisionally shares a sifted key with the receiver. The receiver sends part of its version of the sifted key to the sender, by which an error rate is calculated. The calculated error rate is compared with a predetermined threshold value for bit position synchronization determination. When the calculated error rate is larger, the sender notifies the receiver that bit position synchronization is not established. The receiver reassigns bit numbers to the sifted key, and received-bit comparison and basis reconciliation are performed again. This procedure is repeated until the calculated error rate becomes smaller than the threshold value.

5. 发明申请

US20050180575A1 Communication system and synchronization method thereof 有权
标题翻译：通信系统及其同步方法
公开(公告)号：US20050180575A1
公开(公告)日：2005-08-18
申请号：US11056183
申请日：2005-02-14
申请人： Wakako Maeda , Shuji Suzuki , Akio Tajima , Seigo Takahashi , Akihiro Tanaka
发明人： Wakako Maeda , Shuji Suzuki , Akio Tajima , Seigo Takahashi , Akihiro Tanaka
IPC分类号： H04L9/12 , H04B10/00 , H04B10/548 , H04B10/70 , H04L7/00 , H04L7/04 , H04L9/00 , H04L9/08
CPC分类号： H04L9/12 , H04L7/0008 , H04L7/0075 , H04L9/0852
摘要： A clock signal of a master clock of a sender is transmitted to a receiver through a classical channel and is returned from the receiver. The clock signal is transmitted with strong light from a sender-side quantum unit to a receiver-side quantum unit through a quantum channel. A sender-side synchronization section establishes phase synchronization between the clock signal returned from the receiver and the clock signal detected by the sender-side quantum unit, and generates a calibration clock signal. At the receiver as well, a receiver-side synchronization section establishes phase synchronization between the clock signal detected from the classical channel and the clock signal detected by the receiver-side quantum unit, and generates a calibration clock signal.
摘要翻译：发送器的主时钟的时钟信号通过经典通道发送到接收器，并从接收器返回。时钟信号通过量子通道从发射侧量子单元到接收器侧量子单元的强光传输。发送侧同步部分建立从接收机返回的时钟信号与由发送方量子单元检测到的时钟信号之间的相位同步，并产生校准时钟信号。在接收机中，接收机侧同步部分建立从经典信道检测的时钟信号与由接收机侧量子单元检测的时钟信号之间的相位同步，并产生校准时钟信号。

6. 发明申请

US20050111843A1 Transmission loss and gain measurement method, transmitter-receiver, and transmitting-receiving system 有权
标题翻译：传输损耗和增益测量方法，发射机 - 接收机和发射接收系统
公开(公告)号：US20050111843A1
公开(公告)日：2005-05-26
申请号：US10971047
申请日：2004-10-25
申请人： Takeshi Takeuchi , Akio Tajima , Shigekazu Harada , Akihiro Tanaka , Wakako Maeda
发明人： Takeshi Takeuchi , Akio Tajima , Shigekazu Harada , Akihiro Tanaka , Wakako Maeda
IPC分类号： H04B10/07 , H04B3/46 , H04B3/48 , H04B10/077 , H04B10/079 , H04B10/2507 , H04B10/54 , H04B10/556 , H04B10/564 , H04B17/00 , H04B10/08
CPC分类号： H04B10/077 , H04B10/07955
摘要： A transmitter-receiver having, a means for automatically determining the status of transmission medium such as optical fiber, and a means for automatically setting and resetting the transmission rate and/or output power according to the status of the transmission medium, a transmission loss and gain measurement method, and a transmitting-receiving system. A transmitter-receiver comprises at least: an output power controller for controlling the output power of a transmitter; an input power measuring section for measuring the strength of input signals; and an information processor for deriving the loss or gain of a path to change the output power of the transmitter and/or the rate of data transmission according to the derived loss or gain of the path. A transmission loss and gain measurement method applied to a system comprising transmission media and a plurality of the transmitter-receivers connected via the transmission media, comprises the steps of: transmitting information on the output power of a first transmitter-receiver from the first transmitter-receiver to a second transmitter-receiver; measuring reception strength by the second transmitter-receiver when the second transmitter-receiver receives the output power information; reading the output power information by the second transmitter-receiver; and comparing the reception strength with the output power information to calculate a transmission loss or gain by the second transmitter-receiver.
摘要翻译：一种发射机 - 接收机，具有用于自动确定诸如光纤的传输介质的状态的装置，以及用于根据传输介质的状态自动设置和重置传输速率和/或输出功率的装置，传输损耗和增益测量方法和发送接收系统。发射机 - 接收机至少包括：用于控制发射机的输出功率的输出功率控制器; 用于测量输入信号的强度的输入功率测量部分; 以及信息处理器，用于根据导出的路径损失或增益导出改变发射机的输出功率的路径的损失或增益和/或数据传输速率。一种应用于包括通过传输介质连接的传输介质和多个发射机 - 接收机的系统的传输损耗和增益测量方法包括以下步骤：从第一发射机 - 接收机发送关于第一发射机 - 接收机的输出功率的信息，接收机到第二发射机 - 接收机; 当第二发射机 - 接收机接收到输出功率信息时，测量第二发射机 - 接收机的接收强度; 通过第二发射机 - 接收机读取输出功率信息; 以及将接收强度与输出功率信息进行比较，以计算第二发射机 - 接收机的传输损耗或增益。

7. 发明授权

US08204231B2 Method and device for managing cryptographic keys in secret communications network 有权
标题翻译：用于管理秘密通信网络中密码密钥的方法和设备
公开(公告)号：US08204231B2
公开(公告)日：2012-06-19
申请号：US12136419
申请日：2008-06-10
申请人： Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
发明人： Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
IPC分类号： H04L9/08
CPC分类号： H04L9/0855 , H04L9/083 , H04L9/0891
摘要： A cryptographic key management method and device are provided by which cryptographic keys of multiple nodes can be managed easily and stably. A system includes at least one first node and a plurality of second nodes connected to the first node, and the first node individually generates and consumes a cryptographic key with each of the second nodes connected to the first node itself. A cryptographic key management device in such a system has a monitor that monitors the stored key amounts of cryptographic keys of the individual second nodes, stored at the first node, and a key management control section that performs key generation control on the first node, based on the stored key amounts.
摘要翻译：提供一种加密密钥管理方法和装置，可以容易且稳定地管理多个节点的加密密钥。系统包括连接到第一节点的至少一个第一节点和多个第二节点，并且第一节点单独地生成并消耗加密密钥，其中每个第二节点连接到第一节点本身。这种系统中的加密密钥管理装置具有监视器，该监视器监视存储在第一节点处的各个第二节点的密码密钥的存储密钥量，以及基于第一节点执行密钥生成控制的密钥管理控制部件关于存储的关键金额。

8. 发明授权

US07934132B2 Communication system and method for controlling the same 有权
标题翻译：通信系统及其控制方法
公开(公告)号：US07934132B2
公开(公告)日：2011-04-26
申请号：US11482131
申请日：2006-07-07
申请人： Akihiro Tanaka , Akio Tajima , Seigo Takahashi , Wakako Maeda
发明人： Akihiro Tanaka , Akio Tajima , Seigo Takahashi , Wakako Maeda
IPC分类号： G06F11/00 , G01R31/28 , H04B17/00 , H04L1/20
CPC分类号： H04L1/242 , H04L9/0858 , H04L2209/34
摘要： For an error rate QBER, threshold values are preset, including a threshold value Qbit for frame synchronization processing, a threshold value Qphase for phase correction processing, and a threshold value QEve for eavesdropping detection. Upon the distribution of a quantum key from a sender to a receiver, when the measurement value of QBER is deteriorated more than Qbit, frame synchronization processing is performed. When the measurement value of QBER is deteriorated more than Qphase, phase correction processing and frame synchronization processing are performed. When QBER does not become better than QEve even after these recovery-processing steps are repeated N times, it is determined that there is a possibility of eavesdropping, and the processing is stopped.
摘要翻译：对于错误率QBER，预设阈值，包括帧同步处理的阈值Qbit，相位校正处理的阈值Qphase和用于窃听检测的阈值QEve。当量子密钥从发送方分配到接收方时，当QBER的测量值恶化到比Qbit多的时候，执行帧同步处理。当QBER的测量值劣于Qphase时，执行相位校正处理和帧同步处理。即使在重复了N次这些恢复处理步骤之后，当QBER不比QEve变得更好时，确定存在窃听的可能性，并且停止处理。

9. 发明申请

US20090316910A1 METHOD AND DEVICE FOR MANAGING CRYPTOGRAPHIC KEYS IN SECRET COMMUNICATIONS NETWORK 有权
标题翻译：用于管理秘密通信网络中的CRYPTOGRAPHIC KEYS的方法和设备
公开(公告)号：US20090316910A1
公开(公告)日：2009-12-24
申请号：US12136419
申请日：2008-06-10
申请人： Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
发明人： Wakako Maeda , Akio Tajima , Akihiro Tanaka , Seigo Takahashi
IPC分类号： H04L9/08 , H04L9/14
CPC分类号： H04L9/0855 , H04L9/083 , H04L9/0891
摘要： A cryptographic key management method and device are provided by which cryptographic keys of multiple nodes can be managed easily and stably. A system includes at least one first node and a plurality of second nodes connected to the first node, and the first node individually generates and consumes a cryptographic key with each of the second nodes connected to the first node itself. A cryptographic key management device in such a system has a monitor that monitors the stored key amounts of cryptographic keys of the individual second nodes, stored at the first node, and a key management control section that performs key generation control on the first node, based on the stored key amounts.
摘要翻译：提供一种加密密钥管理方法和装置，可以容易且稳定地管理多个节点的加密密钥。系统包括连接到第一节点的至少一个第一节点和多个第二节点，并且第一节点单独地生成并消耗加密密钥，其中每个第二节点连接到第一节点本身。这种系统中的加密密钥管理装置具有监视器，该监视器监视存储在第一节点处的各个第二节点的密码密钥的存储密钥量，以及基于第一节点执行密钥生成控制的密钥管理控制部件关于存储的关键金额。

10. 发明申请

US20090279897A1 TRANSMISSION METHOD, TRANSMITTER-RECEIVER, AND TRANSMITTING-RECEIVING SYSTEM 审中-公开
标题翻译：传输方法，发射机接收机和发射接收系统
公开(公告)号：US20090279897A1
公开(公告)日：2009-11-12
申请号：US12492212
申请日：2009-06-26
申请人： Takeshi Takeuchi , Akio Tajima , Shigekazu Harada , Akihiro Tanaka , Wakako Maeda
发明人： Takeshi Takeuchi , Akio Tajima , Shigekazu Harada , Akihiro Tanaka , Wakako Maeda
IPC分类号： H04B10/00
CPC分类号： H04B10/077 , H04B10/07955
摘要： A transmitter-receiver having a means for automatically determining the status of transmission medium such as optical fiber, and a means for automatically setting and resetting the transmission rate and/or output power according to the status of the transmission medium, a transmission loss and gain measurement method, and a transmitting-receiving system. A transmitter-receiver comprises at least: an output power controller for controlling the output power of a transmitter; an input power measuring section for measuring the strength of input signals; and an information processor for deriving the loss or gain of a path to change the output power of the transmitter and/or the rate of data transmission according to the derived loss or gain of the path. A transmission loss and gain measurement method applied to a system comprising transmission media and a plurality of the transmitter-receivers connected via the transmission media, comprises the steps of: transmitting information on the output power of a first transmitter-receiver from the first transmitter-receiver to a second transmitter-receiver; measuring reception strength by the second transmitter-receiver when the second transmitter-receiver receives the output power information; reading the output power information by the second transmitter-receiver; and comparing the reception strength with the output power information to calculate a transmission loss or gain by the second transmitter-receiver.
摘要翻译：具有用于自动确定诸如光纤的传输介质的状态的装置的发射机 - 接收机，以及根据传输介质的状态自动设置和重置传输速率和/或输出功率的装置，传输损耗和增益测量方法和发送接收系统。发射机 - 接收机至少包括：用于控制发射机的输出功率的输出功率控制器; 用于测量输入信号的强度的输入功率测量部分; 以及信息处理器，用于根据导出的路径损失或增益导出用于改变发射机的输出功率的路径的损失或增益和/或数据传输速率。一种应用于包括通过传输介质连接的传输介质和多个发射机 - 接收机的系统的传输损耗和增益测量方法包括以下步骤：从第一发射机 - 接收机发送关于第一发射机 - 接收机的输出功率的信息，接收机到第二发射机 - 接收机; 当第二发射机 - 接收机接收到输出功率信息时，测量第二发射机 - 接收机的接收强度; 通过第二发射机 - 接收机读取输出功率信息; 以及将接收强度与输出功率信息进行比较，以计算第二发射机 - 接收机的传输损耗或增益。

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