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1. 发明授权

US06606385B1 Data encrypting/decrypting conversion methods and apparatuses and data communication system adopting the same 有权
标题翻译：数据加密/解密转换方法和装置以及数据通信系统采用
公开(公告)号：US06606385B1
公开(公告)日：2003-08-12
申请号：US09130529
申请日：1998-08-04
申请人： Makoto Aikawa , Kazuo Takaragi , Hiroyuki Koreeda , Manabu Sasamoto , Hiroo Okamoto , Takaharu Noguchi , Soichi Furuya , Shigeru Hirahata
发明人： Makoto Aikawa , Kazuo Takaragi , Hiroyuki Koreeda , Manabu Sasamoto , Hiroo Okamoto , Takaharu Noguchi , Soichi Furuya , Shigeru Hirahata
IPC分类号： H04K100
CPC分类号： H04L9/0625 , G10H2230/015 , H04L2209/08 , H04L2209/12 , H04L2209/601
摘要： Encrypting/decrypting conversion method and apparatus capable of controlling dynamically cyclic shift independent of data to undergo encrypting/decrypting conversion includes two or more different fixed circulating shift processing means for shifting cyclically the data by a fixed bit number leftward or rightward, a cyclic shift processing selecting means for selecting fixed cyclic shift processing means. The selecting sequence determined by the cyclic shift processing means is determined on the basis of data for determining the shift number selecting sequence.
摘要翻译：能够独立于数据进行加密/解密转换的动态循环移位的加密/解密转换方法和装置包括两个或多个不同的固定循环移位处理装置，用于将数据循环移位固定位数向左或向右循环移位处理选择装置，用于选择固定循环移位处理装置。由循环移位处理装置确定的选择序列是基于用于确定移动号码选择序列的数据来确定的。

2. 发明授权

US06683956B1 Encrypting conversion apparatus, decrypting conversion apparatus, cryptographic communication system, and electronic toll collection apparatus 有权
标题翻译：加密转换装置，解密转换装置，密码通信系统和电子收费装置
公开(公告)号：US06683956B1
公开(公告)日：2004-01-27
申请号：US09323252
申请日：1999-06-01
申请人： Makoto Aikawa , Shigeru Hirahata , Kazuo Takaragi , Yoshimichi Kudo
发明人： Makoto Aikawa , Shigeru Hirahata , Kazuo Takaragi , Yoshimichi Kudo
IPC分类号： H04L906
CPC分类号： H04L9/002 , H04L9/0618 , H04L2209/12
摘要： An encrypting conversion apparatus, a decrypting conversion apparatus, a cryptographic communication system and an electronic toll collection apparatus are provided which are capable of changing algorithms of cryptographic conversion to hide the algorithm in use from a third party so that the apparatuses and system are resistant against a cryptographic attack from the third party and can operate at high speed. In the cryptographic communication system.
摘要翻译：提供一种加密转换装置，解密转换装置，密码通信系统和电子收费装置，其能够改变密码转换的算法，以便隐藏来自第三方的使用中的算法，使得装置和系统抵抗来自第三方的加密攻击，可以高速运行。在密码通信系统中。

3. 发明授权

US07359515B2 Method and apparatus for symmetric-key decryption 有权
标题翻译：用于对称密钥解密的方法和装置
公开(公告)号：US07359515B2
公开(公告)日：2008-04-15
申请号：US11602263
申请日：2006-11-21
申请人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
发明人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
IPC分类号： H04L9/00
CPC分类号： H04L9/0822 , H04L9/0625 , H04L9/0637 , H04L9/0662 , H04L9/3236 , H04L2209/125 , H04L2209/20 , H04L2209/38
摘要： A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length; generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext block and the random number block, the feedback value being fed back for using the operation on another plaintext block, and performing an encryption operation using the one plaintext block, random number block, and feedback value.
摘要翻译：一种对称密钥加密技术，能够实现具有高度并行性和改变检测的高速密码处理。本发明包括划分由冗余数据组成的明文和消息，以产生每个具有预定长度的明文块; 基于秘密密钥生成随机数序列，从随机数序列生成与一个明文块相对应的随机数块，将作为操作结果获得的反馈值输出到一个明文块和随机数块上，对反馈值进行反馈以对另一明文块进行操作，并使用一个明文块，随机数块和反馈值进行加密操作。

4. 发明授权

US07280659B2 Pseudorandom number generating apparatus or encryption or decryption apparatus using the same 有权
标题翻译：伪随机数生成装置或使用其的加密或解密装置
公开(公告)号：US07280659B2
公开(公告)日：2007-10-09
申请号：US10124577
申请日：2002-04-18
申请人： Dai Watanabe , Soichi Furuya , Kazuo Takaragi
发明人： Dai Watanabe , Soichi Furuya , Kazuo Takaragi
IPC分类号： H04L9/00
CPC分类号： G06F7/582
摘要： In a buffer and a state included in a pseudorandom number generating apparatus, the state has the configuration of assuming that the unit length of data processing is n, the state has a size of 3×n bits, and the buffer has a capacity of 32×n bits, and according to clock control, a state transformation section (state transformation function) for conducting a state alteration from time t to time t+1 uses a nonlinear function F (having an n-bit input and an n-bit output) twice, or two different nonlinear functions F and G respectively once. The state transformation section has such a configuration that a nonlinear function such as a round function of a block cipher sufficiently evaluated as to the cryptographic security and implementation.
摘要翻译：在包括在伪随机数生成装置中的缓冲器和状态中，状态具有假设数据处理的单位长度为n，状态具有3×n位的大小，并且缓冲器具有32×n位的容量的配置，并且根据时钟控制，用于从时间t到时间t + 1进行状态改变的状态变换部分（状态变换函数）使用两次非线性函数F（具有n位输入和n位输出），或分别有两种不同的非线性函数F和G。状态变换部具有对加密安全性和实现充分评估的块密码的循环函数等非线性函数。

5. 发明授权

US07110545B2 Method and apparatus for symmetric-key encryption 有权
标题翻译：用于对称密钥加密的方法和装置
公开(公告)号：US07110545B2
公开(公告)日：2006-09-19
申请号：US09784254
申请日：2001-02-16
申请人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
发明人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
IPC分类号： H04L9/28
CPC分类号： H04L9/0822 , H04L9/0625 , H04L9/0637 , H04L9/0662 , H04L9/3236 , H04L2209/125 , H04L2209/20 , H04L2209/38
摘要： A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length, generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext blocks and the random number block, the feedback value being fed back for using in the operation on another plaintext blocks, and performing an encryption operation using the one plaintext blocks, random number block, and feedback value.
摘要翻译：一种对称密钥加密技术，能够实现具有高度并行性和改变检测的高速密码处理。本发明包括划分由冗余数据组成的明文和消息，以产生每个具有预定长度的明文块，根据秘密密钥产生一个随机数序列，从随机数序列中产生一个对应于明文块的随机数块输出作为对一个明文块和随机数块的操作结果获得的反馈值，反馈值被反馈以在对另一个明文块的操作中使用，并且使用一个明文块进行加密操作，随机数字块和反馈值。

6. 发明授权

US07224796B2 Pseudorandom number generating apparatus or encryption or decryption apparatus using the same 有权
公开(公告)号：US07224796B2
公开(公告)日：2007-05-29
申请号：US10046167
申请日：2002-01-16
申请人： Dai Watanabe , Soichi Furuya , Kazuo Takaragi
发明人： Dai Watanabe , Soichi Furuya , Kazuo Takaragi
IPC分类号： H04L9/00
CPC分类号： G06F7/582
摘要： In a buffer and a state included in a pseudorandom number generating apparatus, the state has the configuration of assuming that the unit length of data processing is n, the state has a size of 3×n bits, and the buffer has a capacity of 32×n bits, and according to clock control, a state transformation section (state transformation function) for conducting a state alteration from time t to time t+1 uses a nonlinear function F (having an n-bit input and an n-bit output) twice, or two different nonlinear functions F and G respectively once. The state transformation section has such a configuration that a nonlinear function such as a round function of a block cipher sufficiently evaluated as to the cryptographic security and implementation.

7. 发明授权

US07200232B2 Method and apparatus for symmetric-key decryption 失效
标题翻译：用于对称密钥解密的方法和装置
公开(公告)号：US07200232B2
公开(公告)日：2007-04-03
申请号：US09818567
申请日：2001-03-28
申请人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
发明人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
IPC分类号： H04L9/28 , H04L9/06
CPC分类号： H04L9/0822 , H04L9/0625 , H04L9/0637 , H04L9/0662 , H04L9/3236 , H04L2209/125 , H04L2209/20 , H04L2209/38
摘要： A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length, generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext block and the random number block, the feedback value being fed back for using in the operation on another plaintext block, and performing an encryption operation using the one plaintext block, random number block, and feedback value.
摘要翻译：一种对称密钥加密技术，能够实现具有高度并行性和改变检测的高速密码处理。本发明包括划分由冗余数据组成的明文和消息，以产生每个具有预定长度的明文块，根据秘密密钥产生一个随机数序列，从随机数序列中产生一个对应于明文块的随机数块输出作为对一个明文块和随机数块的操作结果获得的反馈值，反馈值被反馈以用于对另一个明文块的操作，并且使用一个明文块执行加密操作，随机数字块和反馈值。

8. 发明申请

US20070064944A1 Method and apparatus for symmetric-key decryption 有权
标题翻译：用于对称密钥解密的方法和装置
公开(公告)号：US20070064944A1
公开(公告)日：2007-03-22
申请号：US11602263
申请日：2006-11-21
申请人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
发明人： Soichi Furuya , Kazuo Takaragi , Hiroyuki Kurumatani , Masashi Takahashi , Kunihiko Miyazaki , Hisayoshi Sato , Dai Watanabe
IPC分类号： H04L9/00
CPC分类号： H04L9/0822 , H04L9/0625 , H04L9/0637 , H04L9/0662 , H04L9/3236 , H04L2209/125 , H04L2209/20 , H04L2209/38
摘要： A symmetric-key cryptographic technique capable of realizing both high-speed cryptographic processing having a high degree of parallelism, and alteration detection. The invention includes dividing plaintext composed of redundancy data and a message to generate plaintext blocks each having a predetermined length; generating a random number sequence based on a secret key, generating a random number block corresponding to one of the plaintext blocks from the random number sequence, outputting a feedback value obtained as a result of operation on the one plaintext block and the random number block, the feedback value being fed back for using the operation on another plaintext block, and performing an encryption operation using the one plaintext block, random number block, and feedback value.
摘要翻译：一种对称密钥加密技术，能够实现具有高度并行性和改变检测的高速密码处理。本发明包括划分由冗余数据组成的明文和消息，以产生每个具有预定长度的明文块; 基于秘密密钥生成随机数序列，从随机数序列生成与一个明文块相对应的随机数块，将作为操作结果获得的反馈值输出到一个明文块和随机数块上，对反馈值进行反馈以对另一明文块进行操作，并使用一个明文块，随机数块和反馈值进行加密操作。

9. 发明授权

US06934842B2 Identification code management method and management system 失效
标题翻译：识别码管理方法和管理系统
公开(公告)号：US06934842B2
公开(公告)日：2005-08-23
申请号：US09801748
申请日：2001-03-09
申请人： Chikashi Okamoto , Kazuo Takaragi , Yasuko Fukuzawa
发明人： Chikashi Okamoto , Kazuo Takaragi , Yasuko Fukuzawa
IPC分类号： G06K19/07 , G06K17/00 , G06K19/10 , G06Q10/00 , G06Q10/08 , G06Q50/00 , G06Q50/28 , H04L9/00 , G06F11/30
CPC分类号： G06K17/00 , G06Q10/087
摘要： An identification code management method and management system includes that the issue and distribution of an ID code having a message authentication code are managed thereby to efficiently and reliably manage a material object using the ID code. An electronic circuit chip with an ID code having a message authentication code stored in a read-only area is used as an identification tag. The information at an ID code order receiving terminal and an identification tag production factory terminal are consolidated and collectively managed at an ID code management terminal. Thereby, the ID code management terminal is inquired of highly confidential information or requested to process the information as required so that an ID code utilization terminal is not required to store the same information.
摘要翻译：识别代码管理方法和管理系统包括管理具有消息验证码的ID代码的发行和分发，从而有效且可靠地使用ID代码来管理物料对象。使用具有存储在只读区域中的具有消息认证码的ID码的电子电路芯片作为识别标签。在ID码管理终端中，将ID码订单接收终端和识别标签生成工厂终端的信息合并统一管理。由此，向ID码管理终端询问高度机密信息，或者根据需要请求处理该信息，使ID码利用终端不需要存储相同的信息。

10. 发明授权

US5280583A System and method for performing interlocution at a plurality of terminals connected to communication network 失效
标题翻译：用于在连接到通信网络的多个终端处执行交互的系统和方法
公开(公告)号：US5280583A
公开(公告)日：1994-01-18
申请号：US938593
申请日：1992-09-03
申请人： Yoshiyuki Nakayama , Kenjiro Mori , Kazuo Takaragi , Singi Domen
发明人： Yoshiyuki Nakayama , Kenjiro Mori , Kazuo Takaragi , Singi Domen
IPC分类号： G06F3/033 , G06F3/048 , G06F3/14 , G06Q10/10 , H04L12/18 , H04M3/56 , H04Q11/04 , G06F13/14
CPC分类号： H04Q11/0435 , G06F3/0481 , G06F3/1454 , G06Q10/10 , H04L12/1813 , H04M3/567 , H04Q2213/093 , H04Q2213/174 , H04Q2213/206
摘要： A plurality of work stations each imparted with a multi-window control function are interconnected through an integrated service digital network (ISDN), wherein control communication route is established among a plurality of stations between which interlocutory communication are to be performed. The work stations transfer control commands by way of the control communication route in accordance with operation by users under the control of an interlocution control program to thereby establish or disconnect a logical communication route between designated application programs of the work stations. So long as the logical communication route is established, the application programs can execute data processing in cooperation with each other. In that case, identical change of display in the windows corresponding to the application programs, respectively, takes place in the work stations. User can perform conference or document edition processing by designating the position of data of concern by a pointing object while conducting conversation by using a telephone set installed at the work station.
摘要翻译：各个赋予多窗口控制功能的多个工作站通过综合业务数字网（ISDN）互连，其中，在要执行非正常通信的多个站之间建立控制通信路由。工作站根据控制通信路由，根据用户在交互控制程序控制下的操作来传送控制命令，从而建立或断开工作站的指定应用程序之间的逻辑通信路由。只要建立了逻辑通信路由，应用程序可以彼此协作地执行数据处理。在这种情况下，在工作站中分别进行与应用程序相对应的窗口中相同的显示变化。用户可以通过使用安装在工作站的电话机进行通话来指定指示对象所关注的数据的位置来执行会议或文档编辑处理。

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