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1. 发明授权

US07080255B1 Secret key generation method, encryption method, and cryptographic communications method and system 失效
标题翻译：秘密密钥生成方法，加密方法和密码通信方法和系统
公开(公告)号：US07080255B1
公开(公告)日：2006-07-18
申请号：US09573915
申请日：2000-05-18
申请人： Masao Kasahara , Yasuyuki Murakami , Shigeo Tsujii
发明人： Masao Kasahara , Yasuyuki Murakami , Shigeo Tsujii
IPC分类号： H04L9/32
CPC分类号： H04L9/083 , H04L9/0847
摘要： A cryptographic communications method is provided which is based on ID-NIKS and is resilient to collusive attack. Centers (1) established in a plurality generate secret keys peculiar to entities (a, b) using division vectors wherein specifying information (ID information) for said entities is divided and personal secret random numbers set differently for each component in the division vectors. The centers (1) then distribute the secret keys to the entities. The entities generate common keys using components, contained in their own peculiar secret keys, that correspond to the division vectors of other entities. Each division vector is configured with codewords of an error correcting code.
摘要翻译：提供了基于ID-NIKS的加密通信方法，并且具有抵御共谋攻击的能力。使用分割向量在多个生成特定实体（a，b）的密钥生成密钥的中心（1），其中分配用于所述实体的指定信息（ID信息）被划分，并且对于分割向量中的每个分量设置不同的个人秘密随机数。中心（1）然后将密钥分配给实体。实体使用与其他实体的分割向量相对应的包含在它们自己的特有秘密密钥中的组件来生成公共密钥。每个划分矢量配置有纠错码的码字。

2. 发明授权

US06996724B2 Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system 失效
标题翻译：秘密密钥生成方法，通用密钥生成方法，加密方法，密码通信方法和密码通信系统
公开(公告)号：US06996724B2
公开(公告)日：2006-02-07
申请号：US09767620
申请日：2001-01-23
申请人： Yasuyuki Murakami , Masao Kasahara , Shigeo Tsujii
发明人： Yasuyuki Murakami , Masao Kasahara , Shigeo Tsujii
IPC分类号： H04L9/00
CPC分类号： H04L9/083 , H04L9/0847
摘要： At the time when generating a secret key of each entity by using each divided identification information (ID division vector) obtained by dividing identification information (ID vector) of each entity into a plurality of blocks and by using a secret symmetric matrix of each key generating agency (center), a part of the components of the symmetric matrix is extracted in accordance with each divided identification information (ID division vector) so that the extracted components are synthesized with a random number particular to each entity so as to generate a secret key of each entity.
摘要翻译：在通过使用通过将每个实体的识别信息（ID向量）划分为多个块而获得的每个划分的标识信息（ID划分矢量）并且通过使用每个密钥产生的密钥的秘密对称矩阵来生成每个实体的秘密密钥的时间根据每个划分的识别信息（ID划分矢量）提取对称矩阵的分量的一部分，使得提取的分量以每个实体特有的随机数合成，以产生秘密密钥的每个实体。

3. 发明授权

US07065210B1 Secret key generation method, encryption method, cryptographic communications method, common key generator, cryptographic communications system, and recording media 失效
标题翻译：秘密密钥生成方法，加密方法，加密通信方法，公共密钥生成器，密码通信系统和记录介质
公开(公告)号：US07065210B1
公开(公告)日：2006-06-20
申请号：US09489696
申请日：2000-01-24
申请人： Shigeo Tsujii , Masao Kasahara
发明人： Shigeo Tsujii , Masao Kasahara
IPC分类号： H04L9/00
CPC分类号： H04L9/0847 , H04L9/083
摘要： A cryptographic communications method based on ID-NIKS, wherewith mathematical structures are minimized, the collusion problem can be circumvented, and building the cryptosystem is simplified. A plurality of centers are provided for distributing a plurality of secret keys to a plurality of entities, respectively. Each secret key is unique to each entity. Information specifying the entities (entity ID information) is divided into a plurality of pieces or segments. All secret keys produced for the pieces of entity ID information are distributed to the entities. Using a component contained in the secret key peculiar to itself, each entity generates a common key to be shared by another entity. This component corresponds to a piece of ID information of another entity.
摘要翻译：基于ID-NIKS的密码通信方法，数学结构最小化，可以规避共谋问题，简化了建立密码系统。提供了多个中心，用于将多个秘密密钥分别分配给多个实体。每个密钥对每个实体是唯一的。指定实体（实体ID信息）的信息被分成多个片段。为实体ID信息生成的所有密钥都分发给实体。使用包含在其本身特有的秘密密钥中的组件，每个实体生成一个公共密钥，以被另一个实体共享。该组件对应于另一个实体的一条ID信息。

4. 发明授权

US4833471A Data processing apparatus 失效
标题翻译：数据处理装置
公开(公告)号：US4833471A
公开(公告)日：1989-05-23
申请号：US931015
申请日：1986-11-17
申请人： Yoshihiro Tokuume , Shigeo Tsujii , Kaoru Kurosawa
发明人： Yoshihiro Tokuume , Shigeo Tsujii , Kaoru Kurosawa
IPC分类号： H03M5/14
CPC分类号： H03M5/145
摘要： There is provided a data processing apparatus for encoding or decoding binary data such as a magnetic disk or an optical disk in which a binary data sequence is converted to a binary code sequence which is suitable for a data processes. This data processing apparatus comprises: a code converter for converting the m-bit data in the binary data sequence to the n-bit code corresponding thereto; output means for outputting the n-bit code sequence corresponding to the binary data sequence; and DC-freeing means for restricting the DC component of the code sequence which is outputted from the output means. The code converter has a ROM table to store the data for code conversion and a register for converting the m-bit serial data to the parallel data and can be easily constituted by a programmable array logic.
摘要翻译：提供了一种用于对诸如磁盘或光盘的二进制数据进行编码或解码的数据处理装置，其中二进制数据序列被转换为适合于数据处理的二进制代码序列。该数据处理装置包括：代码转换器，用于将二进制数据序列中的m位数据转换为与之对应的n位代码; 输出装置，用于输出对应于二进制数据序列的n位代码序列; 以及用于限制从输出装置输出的代码序列的DC分量的DC释放装置。代码转换器具有用于存储用于代码转换的数据的ROM表和用于将m位串行数据转换为并行数据的寄存器，并且可以容易地由可编程阵列逻辑构成。

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