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    Electronic document authenticity assurance method and electronic document disclosure system
    11.
    发明申请
    Electronic document authenticity assurance method and electronic document disclosure system 失效
    电子文件真实性保证方法和电子文件披露制度

    公开(公告)号：US20050015600A1

    公开(公告)日：2005-01-20

    申请号：US10787262

    申请日：2004-02-27

    申请人： Kunihiko Miyazaki ,  Mitsuru Iwamura ,  Tsutomu Matsumoto ,  Ryoichi Sasaki ,  Hiroshi Yoshiura ,  Hirokazu Aoshima ,  Hideo Noyama ,  Seiichi Susaki ,  Takeshi Matsuki

    发明人： Kunihiko Miyazaki ,  Mitsuru Iwamura ,  Tsutomu Matsumoto ,  Ryoichi Sasaki ,  Hiroshi Yoshiura ,  Hirokazu Aoshima ,  Hideo Noyama ,  Seiichi Susaki ,  Takeshi Matsuki

    IPC分类号： G06F12/14 ,  G06F21/00 ,  H04L9/32 ,  H04L9/00

    CPC分类号： G06F21/64

    摘要： An electronic document authenticity assurance technique and an information disclosure system both of which can compatibly realize the assurance of the authenticity of disclosure documents and the deletion of information inappropriate for disclosure. An electronic document is divided into constituent elements and an electronic signature is affixed to an arbitrary subset of a set including all the constituent elements. Otherwise, an electronic signature is affixed to data obtained by binding each of the constituent elements to information specifying the relationship between a respective one of the constituent elements and the structure of the electronic document. Otherwise, the hash values of the respective constituent elements are calculated and an electronic signature is affixed to data obtained by binding the calculated hash values together. Otherwise, random numbers generated for the respective constituent elements are bound together, then the hash values of the respective random-numbered constituent elements are calculated, and then an electronic signature is affixed to data obtained by binding the calculated hash values together.

    摘要翻译： 一种电子文件真实性保证技术和信息披露制度，可以兼容地实现披露文件的真实性的保证和删除不适合披露的信息。 电子文档被分成组成元件，并且电子签名被附加到包括所有组成元素的集合的任意子集中。 否则，电子签名附加到通过将每个组成元件绑定到指定组成元件中的相应一个和电子文档的结构之间的关系的信息而获得的数据。 否则，计算各组成要素的哈希值，并将电子签名附加到通过将所计算的散列值结合在一起而获得的数据。 否则，为各构成要素生成的随机数被绑定在一起，然后计算各随机编号的构成要素的哈希值，然后将电子签名附加到通过将计算出的哈希值结合在一起而获得的数据。

    Distributed object system and service supply method therein
    15.
    发明授权
    Distributed object system and service supply method therein 失效
    分布式对象系统及其服务提供方法

    公开(公告)号：US06327658B1

    公开(公告)日：2001-12-04

    申请号：US09185644

    申请日：1998-11-04

    申请人： Seiichi Susaki ,  Katsuyuki Umezawa ,  Tadashi Kaji ,  Satoru Tezuka ,  Ryoichi Sasaki ,  Kuniaki Tabata ,  Takashi Akaosugi ,  Akira Kito

    发明人： Seiichi Susaki ,  Katsuyuki Umezawa ,  Tadashi Kaji ,  Satoru Tezuka ,  Ryoichi Sasaki ,  Kuniaki Tabata ,  Takashi Akaosugi ,  Akira Kito

    IPC分类号： H04L932

    CPC分类号： H04L63/104 ,  G06F21/51 ,  H04L29/06 ,  H04L67/42

    摘要： A distributed object system comprising at least one object distributing server, at least one client terminal and at least one server object execution server according to the present invention, including: an object distributing server for storing an object program to which an electronic signature is affixed; a client terminal including means for down-loading the object program from the object distributing server, means for verifying the electronic signature affixed to the object program, means for executing the client object program when the completeness of the object program is confirmed and the user of the client terminal beforehand permits execution of the client object program which is electronically signed by a signatory, and means for transmitting the electronic signature affixed to the object program to a server object execution server; and a server object execution server including means for verifying the signature received, and means for supplying services to the user of the client terminal when the completeness of the object program is confirmed and the user and the object program permit use of the services in advance, which makes it possible to prevent a client object which is down-loaded to a client terminal through a network and executed therein from carrying out unjustified processing (not intended by a user using the client terminal) by using authority of the user.

    摘要翻译： 一种包括至少一个对象分发服务器，至少一个客户端终端和至少一个服务器对象执行服务器的分布式对象系统，包括：对象分发服务器，用于存储附加有电子签名的对象程序; 包括用于从对象分发服务器下载对象程序的装置的客户终端，用于验证附加到对象程序的电子签名的装置，当确认对象程序的完整性时执行客户对象程序的装置， 客户端预先允许执行由签名人电子签名的客户对象程序，以及用于将附加到对象程序的电子签名发送到服务器对象执行服务器的装置; 以及服务器对象执行服务器，包括用于验证所接收的签名的装置，以及当确认对象程序的完整性并且用户和对象程序预先使用服务时向客户端的用户提供服务的装置， 这使得可以通过使用用户的权限来防止通过网络向客户端终端下载的客户端对象并在其中执行，以执行不合理的处理（不是由用户使用客户终端的用户）。

    Secret information service system and method
    16.
    发明授权
    Secret information service system and method 失效
    秘密信息服务系统和方法

    公开(公告)号：US5117458A

    公开(公告)日：1992-05-26

    申请号：US606898

    申请日：1990-10-31

    申请人： Kazuo Takaragi ,  Ryoichi Sasaki ,  Tsutomu Nakamura ,  Minoru Koizumi ,  Yasuko Fukuzawa ,  Kenji Kataoka

    发明人： Kazuo Takaragi ,  Ryoichi Sasaki ,  Tsutomu Nakamura ,  Minoru Koizumi ,  Yasuko Fukuzawa ,  Kenji Kataoka

    IPC分类号： H04L9/08

    CPC分类号： H04L9/0833 ,  H04L2209/601

    摘要： An information service system including a plurality of receiving stations and information service facilities. The information service facilities include a memory circuit which stores beforehand a distribution destination information set of receiving station identifiers allocated to the receiving stations, distribution destination information set being disposed in a predetermined order within the memory circuit, a memory circuit for storing a plurality of information to be supplied to receiving stations, an enciphering circuit for generating an enciphering key for optical receiving stations within a group which performs broadcast communications, and enciphering the service information with the enciphering key, and a circuit for transmitting the enciphered service information and service destination codes of service destination receiving stations encoded from the distribution destination information set, through broadcast communications. Each receiving station includes a memory circuit for storing beforehand its own identifier and the distribution destination information set of the group which performs broadcast communications, a receiver unit for receiving the enciphered service information and the service destination codes from the information service facilities, and a deciphering circuit for generating a deciphering key corresponding to the distribution destination information set in accordance with the received service destination codes and the corresponding, and previously stored distribution destination information, only when the own identifier of the receiving station is contained in the service destination codes, and the deciphering the enciphered service information with the deciphering key.

    摘要翻译： 一种包括多个接收站和信息服务设施的信息服务系统。 信息服务设备包括预先存储分配给接收站的接收站标识符的分配目的地信息集合的存储电路，存储电路内以预定顺序设置的分发目的地信息集，存储多个信息的存储电路 提供给接收站的加密电路，用于产生用于执行广播通信的组内的光接收站的加密密钥和用加密密钥加密服务信息的加密密钥，以及用于发送加密服务信息和服务目的地代码的电路 通过广播通信从分发目的地信息集合编码的服务目的地接收站。 每个接收站包括用于预先存储其自己的标识符和执行广播通信的组的分发目的地信息集的存储器电路，用于从信息服务设施接收加密服务信息和服务目的地代码的接收器单元，以及解密 电路，用于仅当所述接收站的自身标识符包含在所述服务目的地代码中时才产生与根据所接收的服务目的地代码和所述相应的和预先存储的分发目的地信息所设定的分发目的地信息相对应的解密密钥，以及 用解密密钥对加密的服务信息进行解密。

    Encipher method and decipher method
    17.
    发明授权
    Encipher method and decipher method 失效
    ENCIPHER方法和DECIPHER方法

    公开(公告)号：US5103479A

    公开(公告)日：1992-04-07

    申请号：US618892

    申请日：1990-11-27

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06

    CPC分类号： H04L9/0625

    摘要： There are provided an encipher method of enciphering message data made by a microcomputer or the like at a high speed by using encipher keys which have previously been stored in a smart card or the like and a decipher method of deciphering the ciphertext made by the encipher method at a high speed by using the encipher keys. The encipher method and the decipher method are suitable for, particularly, a 32-bit microcomputer and include a process expressed by the function Rot.sub.2 i(x) (i=2, 3, 4) in each process. Rot.sub.2 i(x) is the process to circular shift a data train x of 32 bits to the left or right by 2.sup.i bits (i=2, 3, 4).

    Encipher method and decipher method
    18.
    发明授权
    Encipher method and decipher method 失效
    加密方法和解密方法

    公开(公告)号：US4982429A

    公开(公告)日：1991-01-01

    申请号：US343808

    申请日：1989-04-27

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06

    CPC分类号： H04L9/0625

    摘要： There are provided an encipher method of enciphering message data made by a microcomputer or the like at a high speed by using encipher keys which have previously been stored in a smart card or the like and a decipher method of deciphering the ciphertext made by the encipher method at a high speed by using the encipher keys. The encipher method and the decipher method are suitable for, particularly, a 32-bit microcomputer and include a process expressed by the function Rot.sub.2 i(x) (i=2, 3, 4) in each process. Rot.sub.2 i(x) is the process to circular shift a data train x of 32 bits to the left or right by 2.sup.i bits (i=2, 3, 4).

    摘要翻译： 提供了一种通过使用先前已经存储在智能卡等中的加密密钥来高速地加密由微计算机等进行的消息数据的加密方法以及解密由加密方法制成的密文的解密方法 通过使用加密密钥高速。 加密方法和解密方法特别适用于32位微计算机，并且包括在每个处理中由函数Rot2i（x）（i = 2,3,4）表示的处理。 Rot2i（x）是将32位的数据序列x向左或向右循环移位2i位（i = 2,3,4）的过程。

    Method for electronic transaction with digital signature
    19.
    发明授权
    Method for electronic transaction with digital signature 失效
    数字签名电子交易方法

    公开(公告)号：US5018196A

    公开(公告)日：1991-05-21

    申请号：US375828

    申请日：1989-07-05

    申请人： Kazuo Takaragi ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Ryoichi Sasaki

    IPC分类号： G06Q20/00 ,  G07F7/10 ,  H04L9/32

    CPC分类号： G06Q20/02 ,  G06Q20/00 ,  G06Q20/3823 ,  G06Q20/3825 ,  G06Q20/389 ,  G06Q20/401 ,  G07F7/1016 ,  H04L9/3236 ,  H04L9/3247 ,  H04L2209/56

    摘要： A mediation can be requested to a computer connected to a communications network when transacting parties A and B effect an electronic transaction and trouble takes place during the transaction. The transaction is effected by a procedure where the transacting party B transmits its preliminary digital signature to the transacting party A. When the transacting party B agrees with the contract document M transacting part A has submitted, the transacting parties A and B exchange their formal signature with each other. These signatures are obtained by coding data including a hash total h(M) obtained by transforming the contract docmument M, identifiers of the transacting parties A and B and a data identifier indicating whether the data are prepared for the preliminary on the formal signature by the public key cryptosystem using a secrete key for one of the transaction parties. When a trouble takes place, the mediation organization decodes the signatures submitted by the transacting parties as evidences by using a public key and checks as the basic of h(M) and the identifiers of the transacting parties whether the evidence data concern the same transaction or not. Finally, it decides the sort of the signatures based on the data identifiers and deduces a conclusion of the mediation.

    摘要翻译： 当交易方A和B进行电子交易时，可以向连接到通信网络的计算机请求中介，并且在交易期间发生故障。 交易由交易方B将其初步数字签名传送给交易方A的过程来实现。交易方B同意交易A部分已经提交的合约文件时，交易方A和B交换其正式签名 与彼此。 这些签名是通过编码数据来获得的，该数据包括通过转换合同文档M，交易方A和B的标识符获得的哈希总数h（M）和指示数据是否准备好用于正式签名的初步的数据标识符 公钥密码系统使用一个交易方的分配密钥。 当发生故障时，调解组织通过使用公钥解密交易方提交的签名作为证据，并检查h（M）的基本以及交易方的标识符，证据数据是否涉及相同的交易， 不。 最后，它根据数据标识符来确定签名的类型，并推断出调解结论。

    Encrypting system of data
    20.
    发明授权
    Encrypting system of data 失效
    加密数据系统

    公开(公告)号：US4969190A

    公开(公告)日：1990-11-06

    申请号：US336796

    申请日：1989-04-12

    申请人： Kazuo Takaragi ,  Fusao Nakagawa ,  Yasuhiko Nagai ,  Ryoichi Sasaki

    发明人： Kazuo Takaragi ,  Fusao Nakagawa ,  Yasuhiko Nagai ,  Ryoichi Sasaki

    IPC分类号： G09C1/00 ,  H04L9/06 ,  H04L9/26 ,  H04L9/28 ,  H04L9/30

    CPC分类号： H04L9/0637

    摘要： A data encrypting system according to the CBC system involves a limitation in a range of a numerical value which expresses data (smaller than a predetermined integer N). The encrypting system has an encrypting apparatus including a block encrypting section for receiving data, which is expressed by an integer value X smaller than a predetermined integer value N, for executing a data conversionC=enc (X)where 0.ltoreq.C.ltoreq.N-1 using an RSA algorithm, and for outputting C; and an arithmetic operating section connected to receive data, as one input, which is expressed by an integer value M smaller than the integer value N, and the output C of the block encrypting section as the other input, for performing an arithmetic operation for both of the inputs so that a resultant arithmetic value is smaller than the integer value N, and for outputting the arithmetic value as an input of the block encrypting section. Further, a decoding apparatus has a block decoding section for receiving data which is expressed by an integer value C smaller than the integer value N, for executing an inverse conversionY=dec (C)of the encrypting for the input signal by using the RSA algorithm; and a modulo subtracting section for subtracing the input data C from the output Y of the block decoding section and for outputting a remainder M'M'=Y-C (mod N)which is derived by dividing a resultant subtracted value by the integer value N.

    摘要翻译： 根据CBC系统的数据加密系统涉及在表示数据（小于预定整数N）的数值范围内的限制。 加密系统具有加密装置，包括用于接收数据的块加密部分，该数据加密部分由小于预定整数值N的整数值X表示，用于执行数据转换C = enc（X），其中0 < / = N-1使用RSA算法，并输出C; 以及算术运算部，连接成作为一个输入，以小于整数值N的整数值M表示的数据和作为另一输入的块加密部的输出C，以进行两者的算术运算 的输入，使得所得到的算术值小于整数值N，并且用于输出算术值作为块加密部分的输入。 此外，解码装置具有块解码部分，用于接收由小于整数值N的整数值C表示的数据，用于通过使用RSA执行用于输入信号的加密的逆变换Y = dec（C） 算法; 以及用于从块解码部分的输出Y对输入数据C进行子跟踪的模减减部分，并且用于输出通过将合成的减法值除以整数值N而导出的余数M'M'= Y-C（mod N）。