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1. 发明申请

US20070094505A1 Content recording/reproducing system, distribution device, reproducing device, and recording device 有权
标题翻译：内容记录/再现系统，分发设备，再现设备和记录设备
公开(公告)号：US20070094505A1
公开(公告)日：2007-04-26
申请号：US10548265
申请日：2004-03-11
申请人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Makoto Tatabayashi
发明人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Makoto Tatabayashi
IPC分类号： H04L9/00
CPC分类号： H04N21/4325 , G11B20/00086 , G11B20/00173 , G11B20/0021 , G11B20/00246 , G11B20/00362 , G11B20/00492 , H04N21/26613 , H04N21/835
摘要： A content recording/reproducing system, which records and reproduces a sub-content relating to a main content, includes a distribution device, first and second recording media, a recording device and a reproducing device. The first recording medium that is non-rewritable prestores key data based on which a public key is derivable, and the main content. The distribution device outputs verification information that includes the sub-content and is generated by applying a digital signature to relative information relating to the sub-content based on a secret key corresponding to the public key. The recording device acquires and records the verification information on the second recording medium that is rewritable. The reproducing device acquires the key data from the first recording medium and the verification information from the second recording medium, derives the public key from the key data, verifies the verification information using the public key, and reproduces the sub-content if the verification succeeds.
摘要翻译：记录和再现与主要内容相关的子内容的内容记录/再现系统包括分发装置，第一和第二记录介质，记录装置和再现装置。不可重写的第一种记录介质预先存储基于该公钥的可导出的密钥数据，以及主要内容。分发装置输出包含子内容的验证信息，并且通过基于与公开密钥相对应的秘密密钥将数字签名应用于与子内容相关的相关信息来生成。记录装置在可重写的第二记录介质上获取并记录验证信息。再现装置从第一记录介质获取密钥数据和来自第二记录介质的验证信息，从密钥数据中导出公共密钥，使用公钥验证验证信息，并且如果验证成功则再现子内容。

2. 发明申请

US20070192622A1 Computer system, computer program, and addition method 有权
标题翻译：计算机系统，计算机程序和加法
公开(公告)号：US20070192622A1
公开(公告)日：2007-08-16
申请号：US10591846
申请日：2005-03-22
申请人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Hiroyuki Shizuya , Masahiro Mambo
发明人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Hiroyuki Shizuya , Masahiro Mambo
IPC分类号： G06F9/44 , H04L9/32
CPC分类号： G06F7/72 , G06F7/723
摘要： A computer system that makes it difficult to analyze the content of a calculation. A power operation unit (262) performs the following operations using the input data “a” and “b”: ga=ga mod n, gb=gb mod n. Next, a multiplication unit (264) performs the following calculation using ga and gb: gab=ga×gb mod n. Next, a discrete logarithm calculation unit (266) calculates ci mod pi−1 to satisfy gab=gci mod pi (i=1, 2, 3, . . . ,k). Next, a CRT unit (267) calculates “c” to satisfy ci=c mod pi−1 (i=1, 2, 3, . . . ,k) using the Chinese remainder theorem CRT.
摘要翻译：使计算机系统内容难以分析的计算机系统。电源操作单元（262）使用输入数据“a”和“b”执行以下操作：g = g 接下来，乘法单元（264）使用g＆lt; a＆gt;和＆lt; b＆gt;执行以下计算：模块n。接下来，离散对数计算单元（266）计算出来，以满足g∈ab> <<<<<<<<<<<<<<<<<<<<<<<< （i = 1,2,3，...，k）。接下来，CRT单元（267）计算“c”以满足c（i = 1,2,3，...， k）使用中文余数定理CRT。

3. 发明申请

US20070274518A1 Encryption System, Encryption Device, Decryption Device, Program, And Integrated Circuit 有权
标题翻译：加密系统，加密设备，解密设备，程序和集成电路
公开(公告)号：US20070274518A1
公开(公告)日：2007-11-29
申请号：US10592387
申请日：2005-04-28
申请人： Yuichi Futa , Masato Yamamichi , Motoji Ohmori , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi
发明人： Yuichi Futa , Masato Yamamichi , Motoji Ohmori , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi
IPC分类号： H04L9/30
CPC分类号： H04L9/3093 , H04L2209/08
摘要： An encrypted communication system, capable of performing processing with the speed higher than the conventionally achieved speed, has an encryption device and a decryption device which share parameters that satisfy p=3 and q=2ˆk (k: an integer of 2 or greater) (S161), where the decryption device generates a public key and a private key using the parameters (S162-S165), the encryption device encrypts a plain text using the public key (S166-S170), and then, the decryption device decrypts the encrypted text using its own private key (S171-S173).
摘要翻译：能够以比常规实现的速度更高的速度进行处理的加密通信系统具有共享满足p = 3且q = 2k（k：2以上的整数）的参数的加密装置和解密装置（ S 161），其中解密装置使用参数生成公钥和私钥（S 162 -S 165），加密装置使用公钥加密明文（S 166 -S 170），然后，解密设备使用其自己的私钥对加密的文本进行解密（S 171 -S 173）。

4. 发明申请

US20070150735A1 Encrypted communication system and communication device 有权
标题翻译：加密通信系统和通信设备
公开(公告)号：US20070150735A1
公开(公告)日：2007-06-28
申请号：US10573684
申请日：2004-10-18
申请人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Makoto Tatebayashi
发明人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Makoto Tatebayashi
IPC分类号： H04L9/00
CPC分类号： H04L9/0844 , H04L9/30 , H04L2209/605 , H04L2209/80
摘要： In an encrypted communication system that includes a first and a second device, the first device encrypts a key using a public key of the second device to generate 1st encrypted data, which is then transmitted to the second device, receives 2nd encrypted data from the second device, which is then decrypted using a secret key of the first device to obtain a 2nd key, and generates, based on the 1st and 2nd keys, a 1st encryption key for use in communication with the second device. The second device encrypts a 3rd key using a public key of the first device to generate the 2nd encrypted data, which is then transmitted to the first device, receives the 1st encrypted data, which is then decrypted using a secret key of the second device to obtain a 4th key, and generates, based on the 3rd and 4th keys, a 2nd encryption key for use in communication with the first device. The first and second devices perform encrypted communication using the 1st and 2nd encryption keys.
摘要翻译：在包括第一和第二设备的加密通信系统中，第一设备使用第二设备的公开密钥对密钥进行加密以产生第一加密数据，然后将其传送到第二设备，从第二设备接收第二加密数据设备，然后使用第一设备的秘密密钥解密以获得第二密钥，并且基于第一和第二密钥生成用于与第二设备通信的第一加密密钥。第二设备使用第一设备的公开密钥对第三密钥进行加密以生成第二加密数据，然后将其传送到第一设备，接收第一加密数据，然后使用第二设备的秘密密钥将其解密获得第四密钥，并且基于第三和第四密钥生成用于与第一设备通信的第二加密密钥。第一和第二设备使用第一和第二加密密钥执行加密通信。

5. 发明申请

US20060171530A1 Encryption communication system 有权
标题翻译：加密通信系统
公开(公告)号：US20060171530A1
公开(公告)日：2006-08-03
申请号：US10559725
申请日：2004-06-14
申请人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Makoto Tatebayashi
发明人： Yuichi Futa , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Makoto Tatebayashi
IPC分类号： H04L9/28
CPC分类号： H04L9/3236 , H04L9/3093 , H04L2209/60
摘要： An encroption transmission apparatus and an encryption reception apparatus avoid attack that takes advantage of 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 has 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：侵扰传输装置和加密接收装置避免利用重传请求的攻击。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并具有值，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，分别将计算的哈希值与接收到的散列值进行比较。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。

6. 发明申请

US20070124603A1 Content reproduction system 失效
标题翻译：内容再现系统
公开(公告)号：US20070124603A1
公开(公告)日：2007-05-31
申请号：US10567584
申请日：2004-08-19
申请人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
发明人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
IPC分类号： G06F12/14
CPC分类号： H04L63/0435 , G06F21/10 , G06F2221/2107 , G06F2221/2135 , G06F2221/2137 , G11B20/00086 , G11B20/00094 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00253 , G11B20/00268 , G11B20/00347 , G11B20/00492 , G11B20/00724 , G11B20/0084 , G11B20/00847 , H04L63/0442 , H04L2463/101
摘要： A content reproduction system that allow the user to rent or purchase any desired contents for reproduction without depending on a predetermined type of information of the user. The content reproduction system includes: a recording medium storing a license ticket including an encrypted master key; and a reproduction apparatus that receives from the user a request for a selected content and the information of the selected content, acquires distribution content information corresponding to the selected content, stores it in association with the license ticket into the recording medium. When reproducing the content, the reproduction apparatus generates a content using an encrypted content decryption key and an encrypted content that are contained in the distribution content information, and using a master decryption key information corresponding to the distribution content information, and reproduces the generated content.
摘要翻译：一种内容再现系统，其允许用户在不依赖于用户的预定类型的信息的情况下租用或购买任何期望的内容进行再现。内容再现系统包括：存储包括加密主密钥的许可证的记录介质; 以及从用户接收对所选内容的请求和所选内容的信息的再现装置，获取与所选内容相对应的分发内容信息，将其与许可证相关联地存储到记录介质中。当再现内容时，再现设备使用包含在分发内容信息中的加密内容解密密钥和加密内容来生成内容，并且使用与分发内容信息相对应的主解密密钥信息，并再现所生成的内容。

7. 发明申请

US20070150462A1 Content-related information delivery system 审中-公开
标题翻译：内容相关信息传递系统
公开(公告)号：US20070150462A1
公开(公告)日：2007-06-28
申请号：US10551767
申请日：2004-04-01
申请人： Masao Nonaka , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Wataru Ikeda , Masataka Minami , Kazuhisa Watanabe , Atsushi Saso
发明人： Masao Nonaka , Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Wataru Ikeda , Masataka Minami , Kazuhisa Watanabe , Atsushi Saso
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： H04N21/42646 , H04N7/17318 , H04N21/43622 , H04N21/84
摘要： A content-related information delivery system for delivering information related to a content to a user-owned apparatus. The system is composed of a playback apparatus and a server. The playback apparatus monitors a current playback position of the content during playback, generates playback position information specifying a segment of the content, and transmits the generated playback position information to the server. The server receives the playback position information from the playback apparatus, acquires information related to the segment of the content specified by the received playback position information, and transmits the acquired related information to the user-owned apparatus.
摘要翻译：一种内容相关信息传递系统，用于将与内容相关的信息传送给用户拥有的装置。该系统由播放装置和服务器组成。播放装置在回放期间监视内容的当前播放位置，生成指定内容的片段的播放位置信息，并将生成的播放位置信息发送到服务器。服务器从播放装置接收播放位置信息，获取与由接收到的重放位置信息指定的内容的段相关的信息，并将获取的相关信息发送给用户拥有的装置。

8. 发明授权

US07631361B2 Content reproduction system 失效
标题翻译：内容再现系统
公开(公告)号：US07631361B2
公开(公告)日：2009-12-08
申请号：US10567584
申请日：2004-08-19
申请人： Masato Yamamichi , Masami Yamamichi, legal representative , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
发明人： Masato Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
IPC分类号： H04N7/16
CPC分类号： H04L63/0435 , G06F21/10 , G06F2221/2107 , G06F2221/2135 , G06F2221/2137 , G11B20/00086 , G11B20/00094 , G11B20/00115 , G11B20/0021 , G11B20/00246 , G11B20/00253 , G11B20/00268 , G11B20/00347 , G11B20/00492 , G11B20/00724 , G11B20/0084 , G11B20/00847 , H04L63/0442 , H04L2463/101
摘要： A content reproduction system that allow the user to rent or purchase any desired contents for reproduction without depending on a predetermined type of information of the user. The content reproduction system includes: a recording medium storing a license ticket including an encrypted master key; and a reproduction apparatus that receives from the user a request for a selected content and the information of the selected content, acquires distribution content information corresponding to the selected content, stores it in association with the license ticket into the recording medium. When reproducing the content, the reproduction apparatus generates a content using an encrypted content decryption key and an encrypted content that are contained in the distribution content information, and using a master decryption key information corresponding to the distribution content information, and reproduces the generated content.
摘要翻译：一种内容再现系统，其允许用户在不依赖于用户的预定类型的信息的情况下租用或购买任何期望的内容进行再现。内容再现系统包括：存储包括加密主密钥的许可证的记录介质; 以及从用户接收对所选内容的请求和所选内容的信息的再现装置，获取与所选内容相对应的分发内容信息，将其与许可证相关联地存储到记录介质中。当再现内容时，再现设备使用包含在分发内容信息中的加密内容解密密钥和加密内容来生成内容，并且使用与分发内容信息相对应的主解密密钥信息，并再现所生成的内容。

9. 发明申请

US20070198582A1 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：US20070198582A1
公开(公告)日：2007-08-23
申请号：US10557197
申请日：2004-06-03
申请人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
发明人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Motoji Ohmori , Masaya Yamamoto , Kazuhisa Watanabe , Atsushi Saso , Naoaki Yamamoto
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30038 , G06F17/30265 , G06Q30/02 , Y10S707/99948
摘要： An information presentation system simplifies entry of information relating to a package media of a user, and management of the information. The information presentation system is made up of 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 showing attributes of the content identified by the identifier, generates library information including the attribute information and the identifier, and stores the library information. Further, upon request by the terminal apparatus, the library information management apparatus generates presentation information based on the library information, and transmits the presentation information. The user accesses the presentation information using the terminal apparatus.
摘要翻译：信息呈现系统简化了与用户的包装介质有关的信息的输入以及信息的管理。信息呈现系统由重放装置，图书馆信息管理装置和终端装置构成。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，获取表示由标识符识别的内容的属性的属性信息，生成包括属性信息和标识符的库信息，并存储库信息。此外，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。用户使用终端装置访问演示信息。

10. 发明申请

US20060239459A1 Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof 有权
标题翻译：参数生成装置，加密系统，解密系统，加密装置，解密装置，加密方法，解密方法及程序
公开(公告)号：US20060239459A1
公开(公告)日：2006-10-26
申请号：US10552586
申请日：2004-04-14
申请人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Yuuchi Futa , Motoji Ohmori , Makoto Tatebayashi
发明人： Masato Yamamichi , Masami Yamamichi , Satomi Yamamichi , Keiko Yamamichi , Yuuchi Futa , Motoji Ohmori , Makoto Tatebayashi
IPC分类号： H04K1/00
CPC分类号： H04L9/3093
摘要： A parameter generation apparatus for generating parameters causing no decryption error for an NTRU cryptosystem so that an encrypted communication can be carried out between an encryption apparatus and a decryption apparatus in a secure and reliable manner, is comprised of: a provisional parameter generation unit operable to generate a set of provisional parameters that do not cause any decryption errors, based on error condition information that is provided in advance, said error condition information indicating a condition for causing no decryption error; and an output parameter generation unit operable to generate an output parameter that does not cause any decryption errors, using said set of provisional parameters, based on a lattice constant that is calculated from said set of provisional parameters.
摘要翻译：一种参数生成装置，其特征在于，包括：生成对于NTRU密码系统不产生解密错误的参数，使得能够以安全可靠的方式在加密装置和解密装置之间执行加密通信的参数生成装置，其包括：临时参数生成单元，基于预先提供的错误条件信息生成不引起任何解密错误的一组临时参数，所述错误条件信息指示不导致解密错误的条件; 以及输出参数生成单元，用于基于从所述一组临时参数计算的晶格常数，使用所述一组临时参数来生成不引起任何解密错误的输出参数。

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