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101. 发明授权

US07792286B2 Signature generation device and signature verification device 有权
标题翻译：签名生成装置和签名验证装置
公开(公告)号：US07792286B2
公开(公告)日：2010-09-07
申请号：US11578978
申请日：2006-04-10
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04K1/00 , H04L9/00 , H04L9/28 , H04L9/30 , H04L9/32
CPC分类号： H04L9/3093 , H04L9/3255
摘要： A signature generation apparatus and a signature verification apparatus preventing an occurrence of an inappropriate signature verification error. The signature generation apparatus (110) including a signature generation unit (114) calculating signature vector (s, t) for a message m using a private key, and generating signature data S indicating polynomials sl and sh specifying the polynomial s and a polynomial th which is a quotient when the polynomial t is divided by q.
摘要翻译：签名生成装置和签名验证装置，用于防止发生不正当的签名验证错误。签名生成装置（110）包括使用专用密钥计算消息m的签名向量（s，t）的签名生成部（114），生成指定多项式s的多项式sl和sh的签名数据S以及多项式th 当多项式t除以q时，它是商。

102. 发明授权

US07724897B2 Program converter, encrypting device, and encrypting method 有权
标题翻译：程序转换器，加密设备和加密方法
公开(公告)号：US07724897B2
公开(公告)日：2010-05-25
申请号：US11912489
申请日：2006-04-26
申请人： Kaoru Yokota , Motoji Ohmori , Yuichi Futa
发明人： Kaoru Yokota , Motoji Ohmori , Yuichi Futa
IPC分类号： H04K1/00 , H04L9/00 , H04L9/28
CPC分类号： H04L9/0662 , H04L2209/12
摘要： A program converter (1) converts a program (P) which performs arithmetic addition processing to execute encryption, into a converted program (tP) which performs processing equivalent to the processing of the program (P). The program converter (1) includes: a key data extraction unit (10) which extracts key data from the program (P); an addition table generation unit (11) which generates an addition table from the extracted key data; a conversion table extraction unit (12) which extracts a conversion table from the program (P); a table merger unit (13) which generates a merger table by merging the generated-addition table and the extracted conversion table; a random number generation unit (14) which generates a random number; a table randomization unit (15) which generates a randomized merger table by randomizing the merger table using the generated random number; and a converted-program generation unit (16) which generates the converted program (tP) according to the generated randomized merger table.
摘要翻译：程序转换器（1）将执行加法处理的程序（P）转换为执行与程序（P）的处理相当的处理的转换程序（tP）。程序转换器（1）包括：从程序（P）提取密钥数据的密钥数据提取单元（10）; 附加表生成单元，从所提取的密钥数据生成加法表; 转换表提取单元，从程序（P）中提取转换表; 表合并单元，其通过合并生成加法表和提取的转换表来生成合并表; 产生随机数的随机数生成单元（14）; 表格随机化单元，其通过使用所生成的随机数随机化所述合并表来生成随机化合并表; 以及根据生成的随机合并表生成转换程序（tP）的转换程序生成单元（16）。

103. 发明授权

US07698743B2 Authentication server, method and system for detecting unauthorized terminal 有权
标题翻译：用于检测未经授权的终端的认证服务器，方法和系统
公开(公告)号：US07698743B2
公开(公告)日：2010-04-13
申请号：US10577435
申请日：2004-12-20
申请人： Motoji Ohmori , Shunji Ohara , Takashi Katayama
发明人： Motoji Ohmori , Shunji Ohara , Takashi Katayama
IPC分类号： G06F12/14 , G06F7/04 , H04L9/32
CPC分类号： G06F21/10 , G11B20/00086 , H04L9/0869 , H04L9/321 , H04L9/3247 , H04L9/3263 , H04L9/3271 , H04L2209/56 , H04L2209/605
摘要： A DVD terminal (20) makes a request for sending a sub-content to an authentication server (40) (in this case, attaches the “model name and serial number” of the DVD terminal (20)) (S302). The authentication server (40) generates a random number R (S304) and sends it to the DVD terminal (20) (S306). The DVD terminal (20) reads a terminal key and a terminal ID that are stored in a terminal information memory unit (25), decrypts the received random number R using a terminal key (SK_X) (S308) and sends this and the terminal ID (ID_X) to the authentication server (40) (S310). The authentication server (40) verifies the random number R and the terminal ID that are received from the DVD terminal (20) and encrypted, and judges whether the DVD terminal (20) is the authenticated terminal or not (S312).
摘要翻译： DVD终端（20）向认证服务器（40）发出请求发送子内容（例如，DVD终端（20）的“型号名称”和“序列号”）（S302）。认证服务器（40）生成随机数R（S304）并将其发送到DVD终端（20）（S306）。 DVD终端（20）读取存储在终端信息存储单元（25）中的终端密钥和终端ID，使用终端密钥（SK_X）对接收到的随机数R进行解密（S308），并发送解密的随机数R 以及到认证服务器（40）的终端ID（ID_X）（S310）。认证服务器（40）验证从DVD终端（20）接收到的随机数R和终端ID，并判断DVD终端（20）是否为认证终端（S312）。

104. 发明授权

US07664260B2 Signature generation device, key generation device, and signature generation method 有权
标题翻译：签名生成装置，密钥生成装置和签名生成方法
公开(公告)号：US07664260B2
公开(公告)日：2010-02-16
申请号：US11795256
申请日：2006-01-17
申请人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
发明人： Yuichi Futa , Shingo Hasegawa , Shuji Isobe , Motoji Ohmori , Hiroki Shizuya
IPC分类号： H04L9/00 , H04L9/30
CPC分类号： H04L9/14 , G06F9/30007 , H04L9/3066 , H04L9/3093 , H04L9/3247
摘要： A signature generation apparatus preventing an transcript attack on signature data. The signature generation apparatus for generating signature data for message data (i) acquires, according to a predetermined acquisition method, a private key, which is different from a private key used in a previous digital signature operation, from among a plurality of private keys generated using a key generation method of a signature scheme in which the plurality of private keys correspond to a single public key, and (ii) performs, using the acquired private key, a digital signature operation on the message data according to a signature method of the signature scheme to generate the signature data.
摘要翻译：一种防止对签名数据进行转录攻击的签名生成装置。用于生成消息数据的签名数据的签名生成装置（i）根据预定的获取方法从生成的多个私钥中获取与先前的数字签名操作中使用的私钥不同的私钥使用其中所述多个私钥对应于单个公钥的签名方案的密钥生成方法，以及（ii）使用所获取的私钥对所述消息数据执行数字签名操作，所述签名方法根据所述签名方法签名方案来生成签名数据。

105. 发明授权

US07647646B2 Information input/output system, key management device, and user device 有权
标题翻译：信息输入/输出系统，密钥管理设备和用户设备
公开(公告)号：US07647646B2
公开(公告)日：2010-01-12
申请号：US10414002
申请日：2003-04-16
申请人： Toshihisa Nakano , Motoji Ohmori , Makoto Tatebayashi , Hideshi Ishihara
发明人： Toshihisa Nakano , Motoji Ohmori , Makoto Tatebayashi , Hideshi Ishihara
IPC分类号： H04L9/14
CPC分类号： H04L63/0428 , G06F21/10 , G06F21/78 , G11B20/00086 , G11B20/00094 , G11B20/00115 , G11B20/00188 , G11B20/00195 , G11B20/0021 , G11B20/00246 , G11B20/00253 , G11B20/00514 , G11B20/00536 , H04L63/0442 , H04L63/0485 , H04L63/12
摘要： In an information input/output system, a user device inputs and outputs information to and from external sources including a key management device. The system includes the key management device that securely outputs invalid-device information specifying an invalid device unit that has been made invalid for use, and the user device that includes an input/output unit and a host unit. Via the input/output unit, input and output of information is enabled between the host unit and the external sources. The host unit securely receives, via the input/output unit, the invalid-device information outputted by the key management device and judges whether or not the input/output unit is an invalid device unit by referring to the received invalid-device information. When judging, that the input/output unit is an invalid device, the host unit thereafter prohibits input and output via the input/output unit. Due to this construction, the host unit can correctly judge whether or not the input/output unit is an invalid device unit.
摘要翻译：在信息输入/输出系统中，用户设备向外部来源（包括密钥管理设备）输入和输出信息。系统包括密钥管理装置，其安全地输出指定使无效的无效装置单元的无效装置信息和包括输入/输出单元和主机单元的用户装置。通过输入/输出单元，可以在主机单元和外部源之间启用信息的输入和输出。主机通过输入/输出单元安全地接收由密钥管理装置输出的无效装置信息，并通过参考接收到的无效装置信息判断输入/输出装置是否是无效的装置单元。当判断输入/输出单元是无效装置时，主机单元此后禁止通过输入/输出单元的输入和输出。由于这种结构，主机单元可以正确地判断输入/输出单元是否是无效的设备单元。

106. 发明授权

US07647343B2 Information presentation system, management device, and terminal device 有权
标题翻译：信息呈现系统，管理设备和终端设备
公开(公告)号：US07647343B2
公开(公告)日：2010-01-12
申请号：US10557197
申请日：2004-06-03
申请人： Masato Yamamichi , Masami Yamamichi, legal representative , Satomi Yamamichi, legal representative , Keiko Yamamichi, legal representative , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
发明人： Masato Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
IPC分类号： G06F17/30
CPC分类号： G06F17/30038 , G06F17/30265 , G06Q30/02 , Y10S707/99948
摘要： An information presentation system that simplifies entry of information relating to a package media of a user. The information presentation system includes a playback apparatus, a library information management apparatus, and a terminal apparatus. The playback apparatus reads an identifier identifying a content from a portable recording medium in which the content is recorded, and transmits the read identifier to the library information management apparatus via a network. The library information management apparatus receives the identifier, acquires attribute information, generates library information including the attribute information and the identifier, and stores the library information. Upon request by the terminal apparatus, the library information management apparatus generates presentation information based on the library information, and transmits the presentation information.
摘要翻译：一种简化与用户的包装介质有关的信息的输入的信息呈现系统。信息呈现系统包括重放装置，图书馆信息管理装置和终端装置。回放装置从记录有内容的便携式记录介质读取识别内容的标识符，并通过网络将读取的标识符发送到库信息管理装置。库信息管理装置接收标识符，获取属性信息，生成包括属性信息和标识符的库信息，并存储库信息。根据终端装置的要求，库信息管理装置根据库信息生成呈现信息，并发送呈现信息。

107. 发明授权

US07634084B2 Prime calculation device, method, and key issuing system 有权
标题翻译：主要计算装置，方法和钥匙发放系统
公开(公告)号：US07634084B2
公开(公告)日：2009-12-15
申请号：US10582803
申请日：2004-12-21
申请人： Yuichi Futa , Motoji Ohmori
发明人： Yuichi Futa , Motoji Ohmori
IPC分类号： H04L9/28 , H04K1/00
CPC分类号： G06F17/10 , G06F7/72 , G06F2207/7204 , H04L9/3033 , H04L2209/08
摘要： The present invention offers a prime calculating apparatus for achieving prime calculation where producing identical primes is avoided by simple management techniques. The prime calculating apparatus stores a known prime q and management information unique in the use range of primes. The prime calculating apparatus reads the management information; generates random information R based on the read management information; reads prime q; calculates prime candidate N, according to N=2×random information R×prime q+1, using the read prime q and generated random information R; tests whether the calculated prime candidate N is a prime; and outputs the calculated prime candidate N as a prime when the primality of the calculated prime candidate N is determined. Herewith, the prime calculating apparatus is able to calculate prime candidates from unique management information while avoiding producing identical primes.
摘要翻译：本发明提供了一种用于实现主要计算的主要计算装置，其中通过简单的管理技术来避免产生相同的素数。主计算装置存储在素数的使用范围中唯一的已知素数q和管理信息。主计算装置读取管理信息; 基于读取的管理信息生成随机信息R; 读q 根据N = 2x随机信息Rxprime q + 1，使用读取素数q和生成的随机信息R来计算素数候选N; 测试所计算的素数候选N是否为素数; 并且当确定所计算的素数候选N的原语时，将所计算的素数候选N作为素数输出。因此，主计算装置能够从唯一的管理信息计算主要候选者，同时避免产生相同的素数。

108. 发明授权

US07603554B2 Encryption communication system 有权
标题翻译：加密通信系统
公开(公告)号：US07603554B2
公开(公告)日：2009-10-13
申请号：US10559725
申请日：2004-06-14
申请人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi, legal representative , Satomi Yamamichi, legal representative , Keiko Yamamichi, legal representative , Motoji Ohmori , Makoto Tatebayashi
发明人： Yuichi Futa , Masato Yamamichi , Motoji Ohmori , Makoto Tatebayashi
IPC分类号： H04L9/32
CPC分类号： H04L9/3236 , H04L9/3093 , H04L2209/60
摘要： An encryption transmission apparatus and an encryption reception apparatus avoid attack that takes advantage of a re-transmission request. A server apparatus encrypts a content key five times, thereby generating five encrypted content keys, calculates a hash value of the content key, and transmits the five encrypted content keys and the hash value. An image playback apparatus receives the five encrypted content keys and the hash value, decrypts the five encrypted content keys thereby generating five content keys, calculates hash values, each corresponding to the generated content keys, and compares the calculated hash values with the received hash value, respectively. If at least one of the five calculated hash values matches the received hash value, the corresponding content key is considered correct. Conversely, if none of the five calculated hash values matches the received hash value, it is considered a decryption error.
摘要翻译：加密发送装置和加密接收装置避免利用重发请求的攻击。服务器装置对内容密钥进行五次加密，从而生成五个加密的内容密钥，计算内容密钥的哈希值，并发送五个加密内容密钥和哈希值。图像重放装置接收五个加密的内容密钥和哈希值，对五个加密的内容密钥进行解密，从而生成五个内容密钥，计算与生成的内容密钥相对应的哈希值，并将计算的哈希值与接收到的散列值进行比较，分别。如果五个计算的散列值中的至少一个与接收的散列值匹配，则相应的内容密钥被认为是正确的。相反，如果五个计算的散列值中没有一个与接收的散列值匹配，则认为它是解密错误。

109. 发明申请

US20090228717A1 SYSTEM FOR MAKING PROGRAM DIFFICULT TO READ, DEVICE FOR MAKING PROGRAM DIFFICULT TO READ, AND METHOD FOR MAKING PROGRAM DIFFICULT TO READ 有权
标题翻译：用于制作程序难以读取的系统，用于制作程序难以阅读的设备以及制作程序难以阅读的方法
公开(公告)号：US20090228717A1
公开(公告)日：2009-09-10
申请号：US12297929
申请日：2007-04-27
申请人： Yuichi Futa , Taichi Sato , Rieko Asai , Motoji Ohmori , Masahiro Mambo
发明人： Yuichi Futa , Taichi Sato , Rieko Asai , Motoji Ohmori , Masahiro Mambo
IPC分类号： G06F21/22
CPC分类号： G06F21/14 , H04L9/002 , H04L9/302 , H04L2209/16
摘要： Provided is an obfuscating apparatus for making a program analysis more difficult. The obfuscating apparatus creates a table for inputting the same number of arguments, for multiplying and squaring operations, and sets the output values of the table so that the outputs may depend on those arguments. To the squaring operations, more specifically, there are added and tabulated the adding operations using the arguments necessary only for the multiplications, so that the number of arguments is equalized to that of the multiplications. In this case, moreover, the outputs depend on all the arguments, so that the presence/absence of the added argument is unknown unlike the case, in which dummy arguments not to be actually processed are added.
摘要翻译：提供了一种用于使程序分析更困难的混淆装置。混淆装置创建用于输入相同数量参数的表，用于乘法和平方运算，并设置表的输出值，使得输出可以依赖于这些参数。对于平方操作，更具体地，使用仅对乘法所必需的参数来添加和列表添加操作，使得参数的数量与乘法的数量相等。此外，在这种情况下，输出取决于所有参数，因此添加参数的存在/不存在是不同于其中添加了不被实际处理的虚拟参数的情况。

110. 发明授权

US07567487B2 Content moving device, content moving method, computer program, recording medium, and content moving system 失效
标题翻译：内容移动装置，内容移动方法，计算机程序，记录介质和内容移动系统
公开(公告)号：US07567487B2
公开(公告)日：2009-07-28
申请号：US10591845
申请日：2005-03-23
申请人： Yoshikatsu Ito , Masaya Miyazaki , Motoji Ohmori , Shunji Harada , Kaoru Yokota , Toshihisa Nakano , Jun Takahashi
发明人： Yoshikatsu Ito , Masaya Miyazaki , Motoji Ohmori , Shunji Harada , Kaoru Yokota , Toshihisa Nakano , Jun Takahashi
IPC分类号： G11B5/09
CPC分类号： H04N5/913 , G11B20/00086 , G11B20/10 , H04N5/765 , H04N5/775 , H04N5/781 , H04N5/85 , H04N5/907 , H04N9/8042 , H04N2005/91328 , H04N2005/91364
摘要： To provide a highly user-friendly content moving device which prevents unauthorized copying of content and, when content that has been irreversibly converted and moved to a recording medium is moved back to a move source, can use the content in its form before irreversible conversion. A partial information extraction unit extracts, from content stored on a content storage unit, partial data necessary for playback of the content, and a write/read unit writes the partial data to a partial information storage unit and overwrites a portion of the content corresponding to the partial data with different data, while a conversion unit transcodes the content and writes the transcoded content and the partial data to the recording medium.
摘要翻译：为了提供一种高度用户友好的内容移动装置，其防止内容的未经授权的复制，并且当不可逆转换和移动到记录介质的内容被移回到移动源时，可以在不可逆转换之前以其形式使用内容。部分信息提取单元从存储在内容存储单元上的内容中提取播放内容所需的部分数据，并且写/读单元将部分数据写入部分信息存储单元，并且覆盖对应于具有不同数据的部分数据，而转换单元对内容进行转码，并将代码转换内容和部分数据写入记录介质。

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