公开(公告)号：US20070237326A1

公开(公告)日：2007-10-11

申请号：US11578837

申请日：2005-04-15

申请人： Masao Nonaka ,  Kaoru Yokota ,  Motoji Ohmori

发明人： Masao Nonaka ,  Kaoru Yokota ,  Motoji Ohmori

IPC分类号： H04L9/10

CPC分类号： H04L9/0631 ,  H04L9/005 ,  H04L2209/24

摘要： A computer system having resistance to timing attacks based on measuring processing times is offered. The computer system encrypts or decrypts a plain text or ciphertext via a process of converting the partial data on the plain text or the encrypted text into conversion data. A conversion table includes one piece of conversion data corresponding to the partial data at the start position of the line table area and includes data not associated with the conversion in the other position. A computer program includes: an operation instruction group for calculating the predetermined position of the corresponding conversion data in the conversion table by using the acquired partial data; and a read instruction group for reading out the conversion data from the position calculated from the conversion table.

摘要翻译： 提供了一种基于测量处理时间具有抵抗定时攻击的计算机系统。 计算机系统通过将纯文本或加密文本上的部分数据转换为转换数据的处理来对明文或密文进行加密或解密。 转换表包括与行表区域的开始位置处的部分数据相对应的一条转换数据，并且包括与另一位置的转换不相关的数据。 计算机程序包括：操作指令组，用于通过使用所获取的部分数据来计算转换表中相应的转换数据的预定位置; 以及读取指示组，用于从从转换表计算出的位置读出转换数据。

公开(公告)号：US20050262217A1

公开(公告)日：2005-11-24

申请号：US10406217

申请日：2003-04-04

申请人： Masao Nonaka ,  Masato Yamamichi ,  Motoji Ohmori ,  Masaya Yamamoto ,  Wataru Ikeda ,  Masataka Minami ,  Kazuhisa Watanabe ,  Atsushi Saso

发明人： Masao Nonaka ,  Masato Yamamichi ,  Motoji Ohmori ,  Masaya Yamamoto ,  Wataru Ikeda ,  Masataka Minami ,  Kazuhisa Watanabe ,  Atsushi Saso

IPC分类号： G06F15/16

CPC分类号： H04N21/42646 ,  H04N7/17318 ,  H04N21/43622 ,  H04N21/84

摘要： To provide a contents linkage information delivery system for use by a content provider to deliver contents in a manner that a user is allowed to acquire, according to a user request, a content that relates to another content. The present invention is directed to a contents linkage information delivery system for delivering a related content that is associated with another content. The contents linkage information delivery system is composed of a first playback apparatus for playing back the other content, a server for transmitting the related content, and a second playback apparatus for playing back the related content. The first playback apparatus, the server, and the second playback apparatus mutually communicate via a communications channel. The first playback apparatus includes a playback position information acquisition unit for acquiring time-base playback position information of the other content, a request input unit for receiving a user request, and a first transmission unit for transmitting the time-base playback position information. The server includes a first reception unit for receiving the time-base playback position information transmitted from the first playback apparatus, a related content acquisition unit for acquiring the related content based on the time-base playback position information, and a second transmission unit for transmitting the related content. The second playback apparatus includes a second reception unit for receiving the related content transmitted from the server, and a first output unit for outputting the related content.

摘要翻译： 为了提供一种内容联动信息传递系统，供内容提供商使用，以用户被允许的方式根据用户请求获得与另一内容相关的内容的方式传送内容。 本发明涉及用于递送与另一内容相关联的相关内容的内容联动信息传递系统。 内容联动信息传送系统由用于再现其他内容的第一播放装置，用于发送相关内容的服务器和用于播放相关内容的第二播放装置组成。 第一播放装置，服务器和第二播放装置经由通信信道相互通信。 第一播放装置包括用于获取其他内容的时基播放位置信息的播放位置信息获取单元，用于接收用户请求的请求输入单元和用于发送时基播放位置信息的第一传输单元。 服务器包括：第一接收单元，用于接收从第一播放装置发送的时基播放位置信息;相关内容获取单元，用于基于时基播放位置信息获取相关内容;以及第二传送单元，用于发送 相关内容。 第二播放装置包括用于接收从服务器发送的相关内容的第二接收单元和用于输出相关内容的第一输出单元。

公开(公告)号：US08745735B2

公开(公告)日：2014-06-03

申请号：US13128080

申请日：2009-11-20

申请人： Manabu Maeda ,  Yuji Unagami ,  Yuichi Futa ,  Natsume Matsuzaki ,  Masao Nonaka ,  Hiroki Shizuya ,  Masao Sakai ,  Shuji Isobe ,  Eisuke Koizumi ,  Shingo Hasegawa

发明人： Manabu Maeda ,  Yuji Unagami ,  Yuichi Futa ,  Natsume Matsuzaki ,  Masao Nonaka ,  Hiroki Shizuya ,  Masao Sakai ,  Shuji Isobe ,  Eisuke Koizumi ,  Shingo Hasegawa

IPC分类号： H04L29/06 ,  G06F21/00

CPC分类号： G06F21/57 ,  G06F21/55

摘要： To aim to provide a monitoring system and a program execution apparatus that are capable of maintaining the security intensity even in the case where an unauthentic install module is invalidated. Install modules included in an apparatus each monitor an install module, which is a monitoring target indicated by a monitoring pattern included therein, as to whether the install module performs malicious operations. An install module that performs malicious operations is invalidated in accordance with an instruction from an update server. The monitoring patterns are restructured by the update server such that the install modules except the invalidated install module are each monitored by at least another one of the install modules. The restructured monitoring patterns are distributed to the install modules except the invalidated install module.

摘要翻译： 为了提供即使在不正当的安装模块被无效的情况下也能够保持安全强度的监视系统和程序执行装置。 安装在装置中的模块各自监视作为由其中包含的监视模式指示的监视目标的安装模块，关于该安装模块是否执行恶意操作。 根据更新服务器的指令，执行恶意操作的安装模块无效。 监视模式由更新服务器重构，使得除了无效的安装模块之外的安装模块各自由至少另一个安装模块监视。 重组的监控模式分发到除了无效的安装模块之外的安装模块。

公开(公告)号：US08667291B2

公开(公告)日：2014-03-04

申请号：US13561250

申请日：2012-07-30

申请人： Masao Nonaka ,  Yuichi Futa ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Masaya Miyazaki ,  Masaya Yamamoto ,  Kaoru Murase ,  Senichi Onoda

发明人： Masao Nonaka ,  Yuichi Futa ,  Toshihisa Nakano ,  Kaoru Yokota ,  Motoji Ohmori ,  Masaya Miyazaki ,  Masaya Yamamoto ,  Kaoru Murase ,  Senichi Onoda

IPC分类号： H04L29/06 ,  H04L9/32 ,  G06F11/30 ,  G06F12/00

CPC分类号： H04L9/3247 ,  G06F21/10 ,  G06F21/6209 ,  G06F21/64 ,  G06F2221/0773 ,  H04L9/3236 ,  H04L2209/60 ,  Y10S707/99942

摘要： A data processing device for playing back a digital work reduces the processing load involved in verification by using only a predetermined number of encrypted units selected randomly from multiple encrypted units constituting encrypted contents recorded on a DVD. In addition, the data processing device improves the accuracy of detecting unauthorized contents by randomly selecting a predetermined number of encrypted units every time the verification is performed.

摘要翻译： 用于再现数字作品的数据处理装置通过仅使用构成加密内容的多个加密单元随机选择的预定数量的加密单元来减少验证中所涉及的处理负担。 此外，数据处理装置通过在每次执行验证时随机选择预定数量的加密单元来提高检测未授权内容的准确性。

公开(公告)号：US08601590B2

公开(公告)日：2013-12-03

申请号：US11790609

申请日：2007-04-26

申请人： Toshihisa Nakano ,  Masao Nonaka ,  Yuichi Futa ,  Motoji Ohmori ,  Ryo Nojima ,  Kazukuni Kobara ,  Hideki Imai

发明人： Toshihisa Nakano ,  Masao Nonaka ,  Yuichi Futa ,  Motoji Ohmori ,  Ryo Nojima ,  Kazukuni Kobara ,  Hideki Imai

IPC分类号： G06F21/00 ,  G06F21/16 ,  G06F21/10

CPC分类号： G06F21/16 ,  G06F21/10 ,  H04L9/14 ,  H04L9/3247 ,  H04L9/3263 ,  H04L2209/608

摘要： A content distribution system for transferring contents between transmission device and reception device. The transmission device includes: key obtaining unit that obtains, from reception device, public keys and public key identifiers; watermark embedding unit that embeds a different public key identifier, as electronic watermark, into each of contents that are identical in substance; an encryption unit that encrypts contents using public keys to generate encrypted contents; and transmission unit that transmits encrypted contents to reception device. The reception device includes: key storage unit storing public keys, public key identifiers, and a private key that makes a pair with one of the public keys; key transmission unit that transmits public keys and public key identifiers to the transmission device; content receiving unit that receives encrypted contents from transmission device; and decryption unit that obtains a content from the received encrypted contents, using the private key.

摘要翻译： 一种用于在传输设备和接收设备之间传送内容的内容分发系统。 传输设备包括：密钥获取单元，从接收设备获取公钥和公开密钥标识符; 水印嵌入单元将不同的公钥标识符作为电子水印嵌入到实质上相同的每个内容中; 加密单元，其使用公共密钥对内容进行加密以生成加密内容; 以及将加密内容发送到接收装置的发送单元。 接收装置包括：存储公共密钥的密钥存储单元，公开密钥标识符和与公钥之一成对的专用密钥; 密钥发送单元，向发送装置发送公开密钥和公开密钥标识符; 从发送装置接收加密内容的内容接收单元; 以及使用私钥从所接收的加密内容中获取内容的解密单元。

公开(公告)号：US08484485B2

公开(公告)日：2013-07-09

申请号：US12936740

申请日：2009-05-14

申请人： Masao Nonaka ,  Yuichi Futa ,  Kaoru Yokota ,  Natsume Matsuzaki

发明人： Masao Nonaka ,  Yuichi Futa ,  Kaoru Yokota ,  Natsume Matsuzaki

IPC分类号： G06F11/30 ,  G06F12/14 ,  H04K1/00 ,  H04L9/00 ,  H04L9/28

CPC分类号： H04L9/3093 ,  H04L2209/08 ,  H04L2209/127 ,  H04L2209/805 ,  H04L2209/88

摘要： An encryption apparatus prevents plaintext data from leaking even if accumulated data is analyzed, while preventing the size of encrypted data from increasing. The encryption apparatus encrypts a data piece that is smaller than a unit length and stores management information indicating a used area within an encryption area defined based on the unit length. The used area is an area already used for encryption. When encrypting a new data piece that is smaller than the unit length, the encryption apparatus generates encrypted data by adding the new data piece to an unused area within the encryption area with reference to the management information. The unused area is an area not yet used for encryption. The encryption apparatus updates the management information to include an area for the new data piece into the used area, after generating the encrypted data.

摘要翻译： 即使分析了累积数据，加密装置也防止明文数据泄漏，同时防止加密数据的大小增加。 加密装置对小于单位长度的数据进行加密，并将指示使用区域的管理信息存储在基于单位长度定义的加密区域内。 使用区域是已经用于加密的区域。 当加密小于单位长度的新的数据段时，加密装置通过参考管理信息将新的数据段添加到加密区域内的未使用区域来生成加密数据。 未使用的区域是尚未用于加密的区域。 在生成加密数据之后，加密装置更新管理信息以将新数据段的区域包括到使用区域中。

公开(公告)号：US08316102B2

公开(公告)日：2012-11-20

申请号：US13013180

申请日：2011-01-25

申请人： Natsume Matsuzaki ,  Kaoru Yokota ,  Masao Nonaka ,  Shogo Hamasaki ,  Kenji Hisatomi

发明人： Natsume Matsuzaki ,  Kaoru Yokota ,  Masao Nonaka ,  Shogo Hamasaki ,  Kenji Hisatomi

IPC分类号： G06F15/16 ,  G06F7/00 ,  G06F17/00

CPC分类号： G06F11/1464 ,  G06F11/1451 ,  G06F11/1456 ,  H04L67/289 ,  H04M2250/64

摘要： In order to allow a user to backup data, a backup system is used to transfer data from an information terminal to a backup device via a relay device. The information terminal includes a storing unit storing the data to be backed up, and includes a communication unit transmitting the data to the relay device and transferring condition information indicating a condition to be satisfied by the relay device. Further, the relay device includes (i) a storing unit storing information relating to transfer destination devices, (ii) a receiving unit receiving the data and the transfer condition information, and (iii) a transfer control unit selecting a transfer destination device that satisfies the condition indicated by the transfer condition information, and controlling transfer of the received data in accordance with the selection. The backup device includes a receiving unit receiving the data transferred by the relay device, and a storing unit storing the received data.

摘要翻译： 为了允许用户备份数据，使用备份系统经由中继设备将数据从信息终端传送到备份设备。 信息终端包括存储要备份的数据的存储单元，并且包括通信单元，其将数据发送到中继装置，并传送指示中继装置要满足的条件的条件信息。 此外，中继装置包括（i）存储与传送目的地装置有关的信息的存储单元，（ii）接收数据和传送条件信息的接收单元，以及（iii）选择满足以下的传送目的地装置的传送控制单元 由转移条件信息指示的条件，以及根据选择来控制接收到的数据的传送。 备用设备包括接收由中继设备传送的数据的接收单元和存储接收到的数据的存储单元。

公开(公告)号：US20120051203A1

公开(公告)日：2012-03-01

申请号：US13319429

申请日：2011-03-25

申请人： Masao Nonaka ,  Natsume Matsuzaki

发明人： Masao Nonaka ,  Natsume Matsuzaki

IPC分类号： G11B19/04

CPC分类号： G11B20/1217 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00782 ,  G11B20/00847 ,  G11B2020/122 ,  G11B2020/1242 ,  G11B2020/1285 ,  G11B2220/2537

摘要： The present invention provides an apparatus for correctly controlling content recorded on an optical disc. An apparatus 600 for using content recorded on an optical disc 601, wherein the optical disc 601 includes a control information area 602 composed of partial areas 603a-603n, each being for recording control information indicating that use of the content is not permitted, the apparatus 600 comprises: a position information holding unit 612 holding therein position information indicating one of the partial areas 603a-603n that is allocated for the apparatus 600 to record the control information; a reading unit 613 reading information within the control information area 602; a judgment unit 614 judging whether use of the content is permitted, with use of the information read by the reading unit 613 and the position information; and a usage control unit 615 using the content when use of the content is judged to be permitted.

摘要翻译： 本发明提供一种用于正确地控制记录在光盘上的内容的装置。 一种用于使用记录在光盘601上的内容的装置600，其中光盘601包括由部分区域603a-603n组成的控制信息区域602，每个部分区域用于记录指示不允许使用内容的控制信息，该装置 600包括：位置信息保持单元612，其中保存有指示为装置600分配以记录控制信息的部分区域603a-603n之一的位置信息; 读取单元613，读取控制信息区域602内的信息; 判断单元614使用由读取单元613读取的信息和位置信息来判断是否允许使用内容; 以及当使用内容被判定为允许时使用内容的使用控制单元615。

公开(公告)号：US08126318B2

公开(公告)日：2012-02-28

申请号：US11660652

申请日：2005-08-30

申请人： Masao Nonaka ,  Yoshiaki Iwata ,  Yoichi Yamamoto ,  Motoji Ohmori

发明人： Masao Nonaka ,  Yoshiaki Iwata ,  Yoichi Yamamoto ,  Motoji Ohmori

IPC分类号： H04N5/76

CPC分类号： G11B20/1262 ,  H04N5/765 ,  H04N5/775 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/8042 ,  H04N9/8205 ,  H04N21/4334 ,  H04N21/43615 ,  H04N21/4363 ,  H04N21/4402

摘要： A system, which minimizes a time delay caused by one device being unable to access a recording medium until access by another device ends, when transcoding is performed by distributed processing, includes a main device transcoding each coded piece allocated to itself from among a plurality of coded pieces of a digital stream, and writing a transcoding result onto the recording medium, in a pipeline. While the recording device is performing the transcoding and the writing, an auxiliary device transcodes each coded piece allocated to itself one by one. Having completed the transcoding of all coded pieces allocated to itself, the auxiliary device transmits its transcoding results to the recording device and has the recording device write the transcoding results onto the recording medium which is a copy destination.

摘要翻译： 一种系统，其中，当通过分布式处理执行代码转换时，使由一个设备无法访问记录介质而导致的时间延迟最小化，包括从多个 编码的数字流，并将转码结果写入到记录介质上。 当记录装置正在进行代码转换和写入时，辅助装置对分配给自身的每个编码片逐一进行转码。 在完成了分配给自身的所有编码片段的代码转换之后，辅助装置将其代码转换结果发送到记录装置，并且使记录装置将代码转换结果写入到作为复制目的地的记录介质上。

公开(公告)号：US08094811B2

公开(公告)日：2012-01-10

申请号：US11597915

申请日：2006-02-10

申请人： Kaoru Yokota ,  Masao Nonaka

发明人： Kaoru Yokota ,  Masao Nonaka

IPC分类号： H04L9/28

CPC分类号： H04L9/0631 ,  H04L9/003 ,  H04L2209/08

摘要： A data encryption device that is capable of stopping power analysis attacks and reducing instances of speed drops and memory amount increases in encryption processing more effectively than in the past; the data encryption device performs a predetermined encryption, based on a key, on a plain text, and includes a random number generation unit (410a) which generates one core random number per round, concatenates a predetermined amount of plural core random numbers and generates a first random number; an exclusive OR unit which data-merges the plain text with the first random number and generates intermediate data (410b); and a data randomizing unit (410f, 410k) which performs a data randomizing process on the intermediate data, the data randomizing process being based on the first random number, a second random number and the key.

摘要翻译： 数据加密装置能够比过去更有效地停止功率分析攻击并减少速度下降和存储量的增加，加密处理更加有效; 数据加密装置基于密钥对明文执行预定的加密，并且包括每循环生成一个核随机数的随机数生成单元（410a），连接预定量的多个核随机数，并生成 第一个随机数; 数据合并明文与第一随机数的异或单元，生成中间数据（410b）; 以及对中间数据执行数据随机化处理的数据随机化单元（410f，410k），数据随机化处理基于第一随机数，第二随机数和密钥。