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1. 发明授权

US4885788A IC card 失效
标题翻译： IC卡
公开(公告)号：US4885788A
公开(公告)日：1989-12-05
申请号：US13800
申请日：1987-02-12
申请人： Kazuo Takaragi , Takayoshi Shiraishi , Ryoichi Sasaki
发明人： Kazuo Takaragi , Takayoshi Shiraishi , Ryoichi Sasaki
IPC分类号： G06K17/00 , B42D15/02 , B42D15/10 , G06F12/14 , G06F21/24 , G06K19/073 , G06K19/10 , G07C9/00 , G07F7/08 , G07F7/10
CPC分类号： G07F7/1008 , G06Q20/341 , G06Q20/3576 , G06Q20/3672 , G06Q20/3674 , G06Q20/3829 , G06Q20/4012
摘要： An IC card having an authentication code which is compared with an authentication code obtained by processing data recorded on the IC card, and permitting the IC card to be used only when agreement is found.
摘要翻译：具有认证码的IC卡，其与通过处理记录在IC卡上的数据而获得的认证码进行比较，并且只有在找到协议时才允许使用IC卡。

2. 发明授权

US4885777A Electronic transaction system 失效
标题翻译：电子交易系统
公开(公告)号：US4885777A
公开(公告)日：1989-12-05
申请号：US180050
申请日：1988-04-11
申请人： Kazuo Takaragi , Ryoichi Sasaki , Takayoshi Shiraishi , Nobuhiro Kurashiki
发明人： Kazuo Takaragi , Ryoichi Sasaki , Takayoshi Shiraishi , Nobuhiro Kurashiki
IPC分类号： G06Q20/00 , G07F7/10 , H04L9/32
CPC分类号： G06Q20/02 , G06Q20/00 , G06Q20/3821 , G06Q20/3823 , G06Q20/3825 , G06Q20/389 , G06Q20/401 , G07F7/1016 , H04L9/3249 , H04L9/3263 , H04L2209/30 , H04L2209/56
摘要： An electronic transaction in which in order to improve a reliability of message certification by digital signature and enable the use of the digital signature in a formal transaction in place of conventional signature or seal, the following procedures are implemented utilizing the fact that, in a public key cryptograph system represented by an RSA system, a first encoded message derived by encoding a first decoded message by using a public key of a first transacting party is equal to a second encoded message derived by encoding a second decoded message by using a public key of a second transacting party: (a) Check sender/receiver; (b) Add content certification function; (c) Double check the person by the possession of a secret key and the response by a terminal; (d) Add a grace period to the electronic seal; and (e) Send back a tally impression from the receiver to the sender.
摘要翻译：一种电子交易，其中为了通过数字签名提高消息认证的可靠性，并且能够在正式交易中使用数字签名代替常规签名或盖章，以下程序是通过以下事实实现的：在公众中由RSA系统表示的密钥加密系统，通过使用第一交易方的公开密钥对第一解码消息进行编码而得到的第一编码消息等于通过使用第二解码消息的公开密钥第二个交易方：（a）检查发信人/接收者; （b）增加内容认证功能; （c）双重检查拥有密钥的人员和终端的回应; （d）在电子印章上加上宽限期; 和（e）从收件人发回给发送者的计分印象。

3. 发明授权

US07200682B2 Time stamp generating system 失效
标题翻译：时间戳生成系统
公开(公告)号：US07200682B2
公开(公告)日：2007-04-03
申请号：US10223677
申请日：2002-08-20
申请人： Kunihiko Miyazaki , Seiichi Susaki , Kazuo Takaragi , Hiroshi Yoshiura , Takeshi Matsuki , Hisashi Toyoshima , Mitsuru Iwamura , Tsutomu Matsumoto , Ryoichi Sasaki
发明人： Kunihiko Miyazaki , Seiichi Susaki , Kazuo Takaragi , Hiroshi Yoshiura , Takeshi Matsuki , Hisashi Toyoshima , Mitsuru Iwamura , Tsutomu Matsumoto , Ryoichi Sasaki
IPC分类号： G06F15/16
CPC分类号： G06Q30/06 , H04L9/3297
摘要： A time stamp generating system has a time distribution server for generating time data depending on time and a user PC for holding time certification objective digital data. The time distribution server generates time data corresponding to a time point and distributes the time data. The user PC calculates time stamp generating data by using the time certification objective data as an input, acquires the time data generated by the time distribution server, and processes the time data on the basis of the time stamp generating data to obtain a time stamp.
摘要翻译：时间戳生成系统具有用于根据时间产生时间数据的时间分配服务器和用于保持时间认证目标数字数据的用户PC。时间分配服务器生成对应于时间点的时间数据并分发时间数据。用户PC通过使用时间认证对象数据作为输入来计算产生数据的时间戳，获取由时间分配服务器生成的时间数据，并根据时间戳生成数据来处理时间数据以获得时间戳。

4. 发明授权

US06816969B2 Digital signature generating method and digital signature verifying method 有权
标题翻译：数字签名生成方法和数字签名验证方法
公开(公告)号：US06816969B2
公开(公告)日：2004-11-09
申请号：US09797260
申请日：2001-02-28
申请人： Kunihiko Miyazaki , Ryoichi Sasaki , Kazuo Takaragi , Seiichi Susaki , Hisanori Mishima , Takeshi Matsuki , Kunihito Takeuchi , Mitsuru Iwamura , Tsutomu Matsumoto
发明人： Kunihiko Miyazaki , Ryoichi Sasaki , Kazuo Takaragi , Seiichi Susaki , Hisanori Mishima , Takeshi Matsuki , Kunihito Takeuchi , Mitsuru Iwamura , Tsutomu Matsumoto
IPC分类号： G06F1700
CPC分类号： H04L9/3255 , H04L2209/38
摘要： In a signature generating method where not necessarily all of a plurality of signature generating devices work together each time to generate signatures, the present invention seeks to correctly and securely reflect data relating to previous signatures. When generating signatures, the data used for the next signature is sent beforehand to the other signature generating devices. Also, when generating signatures, at least one of the devices is used consecutively, thus allowing history data to be shared during signature generation.

5. 发明授权

US5117458A Secret information service system and method 失效
标题翻译：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。

6. 发明授权

US5103479A Encipher method and decipher method 失效
标题翻译： 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).

7. 发明授权

US4982429A Encipher method and decipher method 失效
标题翻译：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。

8. 发明授权

US07770009B2 Digital signing method 有权
标题翻译：数字签名方式
公开(公告)号：US07770009B2
公开(公告)日：2010-08-03
申请号：US11999373
申请日：2007-12-04
申请人： Kunihiko Miyazaki , Ryoichi Sasaki , Kazuo Takaragi , Seiichi Susaki , Toshiyuki Moritsu , Mizuhiro Sakai , Mitsuru Iwamura , Tsutomu Matsumoto
发明人： Kunihiko Miyazaki , Ryoichi Sasaki , Kazuo Takaragi , Seiichi Susaki , Toshiyuki Moritsu , Mizuhiro Sakai , Mitsuru Iwamura , Tsutomu Matsumoto
IPC分类号： H04L9/32
CPC分类号： H04L9/3297 , H04L9/321 , H04L9/3247 , H04L2209/56
摘要： According to the invention, techniques for authenticating that a digitally signed document is genuine. Specific embodiments according to the present invention can determine whether a digital signature was generated by a digital signature generator, or if the digital signature was generated by a third party posing as the digital signature generator. Specific embodiments can provide independent verification of digital signer identity based upon prior signed messages, time/date stamps, and the like. Techniques according to the present invention can be embodied in methods, apparatus, computer software and systems.
摘要翻译：根据本发明，用于认证数字签名的文档是真实的技术。根据本发明的具体实施例可以确定数字签名是否由数字签名生成器生成，或者数字签名是否由构成数字签名生成器的第三方生成。具体实施例可以基于先前签名的消息，时间/日期戳等来提供数字签名者身份的独立验证。根据本发明的技术可以体现在方法，装置，计算机软件和系统中。

9. 发明授权

US5018196A Method for electronic transaction with digital signature 失效
标题翻译：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。

10. 发明授权

US4969190A Encrypting system of data 失效
标题翻译：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）。

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