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21. 发明授权

US06941283B2 Information recording device and information reproducing device 失效
标题翻译：信息记录装置和信息再现装置
公开(公告)号：US06941283B2
公开(公告)日：2005-09-06
申请号：US10278879
申请日：2002-10-24
申请人： Toru Kambayashi , Koichiro Akiyama , Yutaka Handa , Yoshihiro Ohmori
发明人： Toru Kambayashi , Koichiro Akiyama , Yutaka Handa , Yoshihiro Ohmori
IPC分类号： G06F3/06 , G06F12/14 , G06F21/10 , G06F21/62 , G06Q30/06 , G11B20/00 , G11B20/02 , G11B20/10 , G06F17/60
CPC分类号： G06Q30/06 , G11B20/00086 , G11B20/00094 , G11B20/00115 , G11B20/00166 , G11B20/00173 , G11B20/00181 , G11B20/0021 , G11B20/00224 , G11B20/00347 , G11B20/00514 , G11B20/00557 , G11B20/0071 , G11B20/00746 , G11B20/00753 , G11B20/00797 , G11B20/0084 , G11B20/00847 , G11B20/00884 , G11B20/02 , G11B20/10
摘要： The information reproduction device for reproducing contents information based on license information added to the contents information and required for reproducing the contents information, includes a determining section for determining whether encrypted contents information is the officially copied contents information or privately copied contents information based on the contents of the license information, and a reproduction section configured to reproduce the contents information determined as the privately copied contents information by the determining section under more severe restriction that the officially copied contents information. Thus, the contents copied by the proper route (officially copied contents) can be distributed in a more advantageous form than the contents copied without proper authorization.
摘要翻译：用于根据添加到内容信息中并且再现内容信息所需要的许可信息再现内容信息的信息再现装置包括：确定部分，用于基于内容确定加密的内容信息是正式复制的内容信息还是私人复制的内容信息以及再现部，被配置为在所述正式复制的内容信息的更严格的限制下，由所述确定部再现被确定为所述私人复制的内容信息的内容信息。因此，通过正确的路由（正式复制的内容）复制的内容可以以比未经适当授权复制的内容更有利的形式来分发。

22. 发明授权

US06665303B1 Scheme for realizing communications through external network from contents processing device connected to local network in home environment 失效
标题翻译：通过外部网络从家庭环境中连接到本地网络的内容处理设备实现通信的方案
公开(公告)号：US06665303B1
公开(公告)日：2003-12-16
申请号：US09223812
申请日：1998-12-31
申请人： Takeshi Saito , Mikio Hashimoto , Toru Kambayashi , Koichiro Akiyama
发明人： Takeshi Saito , Mikio Hashimoto , Toru Kambayashi , Koichiro Akiyama
IPC分类号： H04L1228
CPC分类号： H04L12/40097 , H04L12/2803 , H04L12/2818 , H04L12/2834 , H04L12/66 , H04L2012/2845 , H04L2012/2849 , H04N21/4363 , H04N21/4622 , H04N21/6175 , H04N21/6187 , Y10T428/2991
摘要： A scheme for realizing communications through an external network such as telephone network from a contents processing device such as AV device or PC connected to a local network such as home network is disclosed. The contents processing device solicits a set up of connection to the server device through the telephone network, to a gateway device which is connected with both the home network and the telephone network. Then, the gateway device carries out a call set up with respect to a specified address on the telephone network, upon receiving the solicitation from the contents processing device, and transfers data transmitted from the contents processing device to a connection established by the call set up, and data arriving from the connection established by the call set up to the contents processing device.
摘要翻译：公开了一种通过诸如电话网络的外部网络从诸如家用网络等本地网络连接的诸如AV设备或PC的内容处理设备实现通信的方案。内容处理设备通过电话网请求与服务器设备的连接建立到与家庭网络和电话网络连接的网关设备。然后，网关装置在从内容处理装置接收到请求时，对电话网络上的指定地址进行呼叫建立，将从内容处理装置发送的数据传送到通过呼叫建立建立的连接，以及从由呼叫建立的连接到达内容处理设备的数据。

23. 发明授权

US08046582B2 Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus 有权
公开(公告)号：US08046582B2
公开(公告)日：2011-10-25
申请号：US12923919
申请日：2010-10-14
申请人： Koichiro Akiyama , Yasuhiro Goto
发明人： Koichiro Akiyama , Yasuhiro Goto
IPC分类号： H04L9/00
CPC分类号： H04L9/3263 , H04L9/0861 , H04L9/3033 , H04L9/3066 , H04L9/3093 , H04L9/3247 , H04L9/3281
摘要： A digital signature generation apparatus includes memory to store finite field Fq and section D(ux(s, t), uy(s, t), s, t) as secret key, section being one of surfaces of three-dimensional manifold A(x, y, s, t) which is expressed by x-coordinate, y-coordinate, parameter s, and parameter t and is defined on finite field Fq, x-coordinate and y-coordinate of section being expressed by functions of parameter s and parameter t, calculates hash value of message m, generates hash value polynomial by embedding hash value in 1-variable polynomial h(t) defined on finite field Fq, and generates digital signature Ds(Ux(t), Uy(t), t) which is curve on section, the x-coordinate and y-coordinate of curve being expressed by functions of parameter t, by substituting hash value polynomial in parameter s of section.

24. 发明申请

US20110038478A1 Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus 有权
标题翻译：数字签名生成装置，数字签名验证装置以及密钥生成装置
公开(公告)号：US20110038478A1
公开(公告)日：2011-02-17
申请号：US12923919
申请日：2010-10-14
申请人： Koichiro Akiyama , Yasuhiro Goto
发明人： Koichiro Akiyama , Yasuhiro Goto
IPC分类号： H04L9/00
CPC分类号： H04L9/3263 , H04L9/0861 , H04L9/3033 , H04L9/3066 , H04L9/3093 , H04L9/3247 , H04L9/3281
摘要： A digital signature generation apparatus includes memory to store finite field Fq and section D(ux(s, t), uy(s, t), s, t) as secret key, section being one of surfaces of three-dimensional manifold A(x, y, s, t) which is expressed by x-coordinate, y-coordinate, parameter s, and parameter t and is defined on finite field Fq, x-coordinate and y-coordinate of section being expressed by functions of parameter s and parameter t, calculates hash value of message m, generates hash value polynomial by embedding hash value in 1-variable polynomial h(t) defined on finite field Fq, and generates digital signature Ds(Ux(t), Uy(t), t) which is curve on section, the x-coordinate and y-coordinate of curve being expressed by functions of parameter t, by substituting hash value polynomial in parameter s of section.
摘要翻译：数字签名生成装置包括存储器，用于存储有限域Fq和区段D（ux（s，t），uy（s，t），s，t）作为秘密密钥，区段是三维歧管A的表面之一 x，y，s，t），由x坐标，y坐标，参数s和参数t表示，并定义在有限域Fq，x坐标和y坐标的区间由参数s的函数表示和参数t计算消息m的哈希值，通过在有限域Fq上定义的1变量多项式h（t）中嵌入哈希值来生成哈希值多项式，生成数字签名Ds（Ux（t），Uy（t） t），曲线的x坐标和y坐标由参数t的函数表示，通过在段的参数s中代入散列值多项式。

25. 发明授权

US07747871B2 Information recording apparatus, information reproducing apparatus, and information distribution system 有权
标题翻译：信息记录装置，信息再现装置和信息分发系统
公开(公告)号：US07747871B2
公开(公告)日：2010-06-29
申请号：US10227853
申请日：2002-08-27
申请人： Toru Kambayashi , Koichiro Akiyama , Shuichi Tsujimoto , Kazuo Sumita , Hideki Hirakawa , Toshihiro Sugaya
发明人： Toru Kambayashi , Koichiro Akiyama , Shuichi Tsujimoto , Kazuo Sumita , Hideki Hirakawa , Toshihiro Sugaya
IPC分类号： G06F11/30 , G06F12/14
CPC分类号： G11B20/00086 , G06F21/10 , G06F2211/007 , G06F2221/0795 , G06F2221/2135 , G06Q30/018 , G11B20/0021 , G11B20/00224 , G11B20/00246 , G11B20/00253 , G11B20/00492 , G11B20/00536 , G11B20/00557 , G11B20/0084 , G11B20/00847 , H04L9/0891 , H04L2209/603
摘要： An information recording apparatus comprises an encryption section encrypting contents information and also a license condition referred to to limit use of the contents information and a decoding key for decoding the encrypted contents information to generate license information, and a recording section recording the encrypted contents information and the generated license information on a recording medium. An information reproducing apparatus comprises a decoder unit decoding the license information recorded on the recording medium using a second decoding key for decoding the license information and deciding on the basis of the license condition contained in the decoded license information whether the contents information can be used. If it is decided that the contents information can be used, the encrypted contents information recorded on the recording medium is decoded using the first decoding key contained in the decoded license information.
摘要翻译：一种信息记录装置，包括对内容信息进行加密的加密部分，以及用于限制使用内容信息的许可条件和用于对加密的内容信息进行解码以产生许可信息的解码密钥，以及记录加密内容信息的记录部分，在记录介质上产生的许可证信息。一种信息再现装置，包括：解码器单元，使用用于解码许可信息的第二解码密钥解码记录在记录介质上的许可信息，并根据包含在解码的许可证信息中的许可证条件来确定是否可以使用内容信息。如果确定可以使用内容信息，则使用解码的许可证信息中包含的第一解码密钥对记录在记录介质上的加密内容信息进行解码。

26. 发明授权

US07688973B2 Encryption apparatus, decryption apparatus, key generation apparatus, program, and method 失效
标题翻译：加密装置，解密装置，密钥生成装置，程序和方法
公开(公告)号：US07688973B2
公开(公告)日：2010-03-30
申请号：US11128283
申请日：2005-05-13
申请人： Koichiro Akiyama , Yasuhiro Goto
发明人： Koichiro Akiyama , Yasuhiro Goto
IPC分类号： H04L9/30 , H04L9/14
CPC分类号： H04L9/3093 , H04L9/3026 , H04L2209/08
摘要： According to each embodiment of this invention, an encryption apparatus, decryption apparatus, and key generation apparatus based on a public-key cryptographic scheme whose security is based on the divisor finding problem of obtaining a divisor on an algebraic surface which is a difficult problem that has not been solved by contemporary mathematics are realized by an arrangement using, as a private key, a section D of algebraic curves (divisors) on a fibration X(x, y, t) of an algebraic surface X. This makes it possible to create a public-key cryptographic scheme which can ensure security even in the advent of a quantum computer, can be securely realized by even current computers, and can be realized in a low-power environment.
摘要翻译：根据本发明的每个实施例，一种基于公钥密码方案的加密装置，解密装置和密钥生成装置，其安全性基于获得代数表面上的除数的除数查找问题，该问题是一个难题，当代数学没有得到解决，是通过使用代数曲线（除数）D代表代数曲线X（x，y，t）作为私钥的方式来实现的。这使得可以创建公钥加密方案，即使在量子计算机出现的情况下也能保证安全性，即使是目前的计算机也能安全地实现，并且可以在低功耗的环境中实现。

27. 发明申请

US20090138404A1 APPARATUS AND METHOD FOR RENDERING DIGITAL CONTENT 失效
标题翻译：提供数字内容的装置和方法
公开(公告)号：US20090138404A1
公开(公告)日：2009-05-28
申请号：US12359871
申请日：2009-01-26
申请人： Satoshi Ito , Hideyuki Aisu , Tooru Kamibayashi , Koichiro Akiyama , Shinichiro Hamada
发明人： Satoshi Ito , Hideyuki Aisu , Tooru Kamibayashi , Koichiro Akiyama , Shinichiro Hamada
IPC分类号： H04L9/00
CPC分类号： G06F21/10 , G06F2221/0766
摘要： An apparatus for rendering a digital content having license information defining specifics of permission of a rendering operation includes a license processor that acquires, from the license information of the digital content, a constraint defining conditions for rendering between the digital content and other digital content; an operation execution command generator that generates an operation execution command for rendering the digital content according to the constraint acquired by the license processor; and a content renderer that renders the digital content based on the operation execution command generated by the operation execution command generator.
摘要翻译：一种用于呈现具有定义许可信息的数字内容的数字内容的装置，包括从数字内容的许可信息中获取限定数字内容与其他数字内容之间呈现条件的约束的许可处理器; 操作执行命令生成器，其生成用于根据由许可处理器获取的约束来呈现数字内容的操作执行命令; 以及内容呈现器，其基于由操作执行命令生成器生成的操作执行命令呈现数字内容。

28. 发明申请

US20080019511A1 ENCRYPTION APPARATUS, DECRYPTION APPARATUS, PROGRAM, AND METHOD 审中-公开
标题翻译：加密设备，解码设备，程序和方法
公开(公告)号：US20080019511A1
公开(公告)日：2008-01-24
申请号：US11685302
申请日：2007-03-13
申请人： Koichiro Akiyama , Yasuhiro Goto
发明人： Koichiro Akiyama , Yasuhiro Goto
IPC分类号： H04L9/30 , G06F1/02 , G06F7/72
CPC分类号： G06F7/724 , H04L9/3026 , H04L9/3066 , H04L2209/08
摘要： An encryption apparatus generates two random three-variable polynomials r(x,y,t) and s(x,y,t) to be constituted of like terms of a variable xiyj (where i and j are degrees that are zero or more) when two multiplication results X(x,y,t)r(x,y,t) and f(t)s(x,y,t) are regarded as polynomials of x and y, and generates an encrypted text F from a plaintext polynomial m(t) by using the two multiplication results X(x,y,t)r(x,y,t) and f(t)s(x,y,t).
摘要翻译：加密装置生成两个随机三变量多项式r（x，y，t）和s（x，y，t），以由变量x的类似项构成当两个相乘结果X（x，y，t）r（x，y，t）和f（t）s（x，y，t）时，（其中i和j是0或更大的度数）被认为是x和y的多项式，并且通过使用两个相乘结果X（x，y，t）r（x，y，t）和f（t）从明文多项式m（t）生成加密文本F， s（x，y，t）。

29. 发明授权

US07023862B2 Scheme for realizing communications through external network from contents processing device connected to local network in home environment 失效
公开(公告)号：US07023862B2
公开(公告)日：2006-04-04
申请号：US10625771
申请日：2003-07-24
申请人： Takeshi Saito , Mikio Hashimoto , Toru Kambayashi , Koichiro Akiyama
发明人： Takeshi Saito , Mikio Hashimoto , Toru Kambayashi , Koichiro Akiyama
IPC分类号： H04L12/28 , H04L12/56 , H04L9/00 , H04L12/64
CPC分类号： H04L12/40097 , H04L12/2803 , H04L12/2818 , H04L12/2834 , H04L12/66 , H04L2012/2845 , H04L2012/2849 , H04N21/4363 , H04N21/4622 , H04N21/6175 , H04N21/6187 , Y10T428/2991
摘要： A scheme for realizing communications through an external network such as telephone network from a contents processing device such as AV device or PC connected to a local network such as home network is disclosed. The contents processing device solicits a set up of connection to the server device through the telephone network, to a gateway device which is connected with both the home network and the telephone network. Then, the gateway device carries out a call set up with respect to a specified address on the telephone network, upon receiving the solicitation from the contents processing device, and transfers data transmitted from the contents processing device to a connection established by the call set up, and data arriving from the connection established by the call set up to the contents processing device.

30. 发明申请

US20050013440A1 Reception management apparatus, broadcasting receiving device, information distributing device, and information distributing method and reception management program 审中-公开
标题翻译：接收管理装置，广播接收装置，信息分发装置，信息分发方法和接收管理程序
公开(公告)号：US20050013440A1
公开(公告)日：2005-01-20
申请号：US10858377
申请日：2004-06-02
申请人： Koichiro Akiyama , Kentaro Umesawa
发明人： Koichiro Akiyama , Kentaro Umesawa
IPC分类号： G06F13/00 , H04H20/00 , H04H60/16 , H04H60/21 , H04H60/68 , H04L9/08 , H04N7/167 , H04N7/173
CPC分类号： H04N7/1675 , H04H60/16 , H04H60/21 , H04H60/68 , H04L9/083 , H04L9/0841 , H04L2209/34 , H04L2209/601 , H04N7/162 , H04N21/4345 , H04N21/436 , H04N21/43607 , H04N21/4623 , H04N21/4627
摘要： There is disclosed a contract management apparatus connected to a plurality of broadcasting receiving devices which receive encrypted and broadcasted/distributed content information of a plurality of broadcasting channels and a channel key for decrypting the content information via a first network. The contract management apparatus receives and stores key information for decrypting the channel key via a second network, and distributes the stored key information in response to a request from the broadcasting receiving devices via the first network, until a total value of points indicating a value of the content information decrypted using the key information, a see/hear time, or a combination of these becomes equal to a predetermined upper limit value in the plurality of broadcasting receiving devices.
摘要翻译：公开了一种连接到多个广播接收装置的合同管理装置，其接收多个广播频道的加密和广播/分发的内容信息以及经由第一网络解密内容信息的频道密钥。合同管理装置经由第二网络接收并存储用于对通道密钥进行解密的密钥信息，并且响应于来自广播接收装置的经由第一网络的请求分发存储的密钥信息，直到表示值使用密钥信息解密的内容信息，查看/听到时间或这些的组合变得等于多个广播接收装置中的预定上限值。

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