公开(公告)号：US20090138714A1

公开(公告)日：2009-05-28

申请号：US12276835

申请日：2008-11-24

申请人： Tatsuyuki MATSUSHITA ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

发明人： Tatsuyuki MATSUSHITA ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

IPC分类号： H04L9/00

CPC分类号： H04L9/083 ,  H04L2209/60

摘要： A plurality of first encrypted pieces is generated by encrypting the pieces with a first encryption key. The second encrypted piece is generated by encrypting at least one of the pieces with a second encryption key. The first encryption key and the second encryption key for encrypting the same piece are different from each other. A communication apparatus receives a first encrypted piece or a second encrypted piece from other communication apparatus for each piece, transmits a request message for requesting a decryption key for decrypting the encrypted piece to a key server, and receives the decryption key from the key server in response to the request message.

摘要翻译： 通过用第一加密密钥加密片段来生成多个第一加密片段。 通过用第二加密密钥加密至少一个片段来生成第二加密片段。 第一加密密钥和用于加密相同部件的第二加密密钥彼此不同。 通信装置从每个部件的其他通信装置接收第一加密片或第二加密片，向密钥服务器发送用于请求解密密钥的请求消息，并从密钥服务器接收解密密钥 响应请求消息。

公开(公告)号：US20090282250A1

公开(公告)日：2009-11-12

申请号：US12329375

申请日：2008-12-05

申请人： Hideaki SATO ,  Tatsuyuki Matsushita ,  Kentaro Umesawa ,  Hideki Matsumoto ,  Ryuiti Koike ,  Taku Kato ,  Haruhiko Toyama ,  Satoshi Ito ,  Toru Kambayashi

发明人： Hideaki SATO ,  Tatsuyuki Matsushita ,  Kentaro Umesawa ,  Hideki Matsumoto ,  Ryuiti Koike ,  Taku Kato ,  Haruhiko Toyama ,  Satoshi Ito ,  Toru Kambayashi

IPC分类号： H04L9/00

CPC分类号： H04L9/083 ,  H04L9/0891 ,  H04L9/14 ,  H04L2209/60

摘要： A communication apparatus receives, from another communication apparatus, a plurality of encrypted pieces obtained by encrypting a plurality of pieces constituting a part of a content and obtains a part or all of decryption keys used for decrypting the encrypted pieces. The communication apparatus also obtains an invalid piece list showing one or more identifiers of one or more encrypted pieces that can respectively be decrypted by using one or more decryption keys that have already been invalidated. In the case where at least one of the encrypted pieces is listed in the invalid piece list, the communication apparatus deletes the at least one of the encrypted pieces, based on an obtainment status of the encrypted pieces or an obtainment status of the decryption keys.

摘要翻译： 通信装置从另一通信装置接收通过加密构成内容的一部分的多个片段获得的多个加密片段，并获得用于解密加密片段的解密密钥的一部分或全部。 通信装置还通过使用已经被无效的一个或多个解密密钥获得表示可分别解密的一个或多个加密片段的一个或多个标识符的无效片段列表。 在无效片列表中列出至少一个加密片的情况下，通信装置根据加密片的获取状态或解密密钥的获得状态来删除加密片中的至少一个。

公开(公告)号：US08175267B2

公开(公告)日：2012-05-08

申请号：US12333704

申请日：2008-12-12

申请人： Kentaro Umesawa ,  Ryuiti Koike ,  Hideki Matsumoto ,  Tatsuyuki Matsushita ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

发明人： Kentaro Umesawa ,  Ryuiti Koike ,  Hideki Matsumoto ,  Tatsuyuki Matsushita ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

IPC分类号： H04L9/00

CPC分类号： H04L67/104 ,  H04L63/0428 ,  H04L63/06 ,  H04L67/1076 ,  H04L67/108 ,  H04L67/322

摘要： A communication apparatus stores encrypted pieces having plural pieces as a part of a content encrypted, and number of transmission times. At least one first piece is encrypted by plural different encryption keys. The communication apparatus selects as priority pieces plural encrypted pieces corresponding to at least one first piece among the first pieces, based on number of untransmitted encrypted pieces of which number of transmission times is zero among plural encrypted pieces of which first piece is encrypted, and stores priority piece information specifying the priority piece. When a piece request is received from other communication apparatus, the communication apparatus determines an encrypted piece to be transmitted, based on priority piece information, and transmits the encrypted piece to the other communication apparatus.

摘要翻译： 通信装置存储具有多个片段的加密片段作为加密的内容的一部分以及发送次数。 至少一个第一件由多个不同的加密密钥加密。 通信装置根据第一部分被加密的多个加密片段中的发送次数为零的未发送的加密片数，对与第一片段中的至少一个第一片相对应的多个加密片段进行优先选择，并存储 优先级信息指定优先级块。 当从其他通信装置接收到请求时，通信装置根据优先级信息确定要发送的加密件，并将加密件发送到另一通信装置。

公开(公告)号：US20100008509A1

公开(公告)日：2010-01-14

申请号：US12368674

申请日：2009-02-10

申请人： Tatsuyuki Matsushita ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

发明人： Tatsuyuki Matsushita ,  Ryuiti Koike ,  Hideki Matsumoto ,  Kentaro Umesawa ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

IPC分类号： H04L9/14

CPC分类号： H04L9/083 ,  H04L63/061 ,  H04L2209/60 ,  H04L2463/062

摘要： A communication apparatus obtains file information indicating all or a part of first and second encrypted pieces obtained by encrypting a plurality of pieces constituting a part of a content and version management information with which it is possible to judge whether the file information has validity and receives, for each of the pieces, one of the first encrypted piece and the second encrypted piece from another communication apparatus, by using the file information. The communication apparatus transmits, to a key server, a request message for requesting decryption keys each being used for decrypting the one of the first encrypted piece and the second encrypted piece received for a different one of the pieces and the version management information of the file information used to obtain the one of the first encrypted piece and the second encrypted piece in correspondence with each of the pieces and receives the decryption keys.

摘要翻译： 通信装置获取指示通过加密构成内容的一部分的多个片段获得的第一和第二加密片段的全部或一部分的文件信息，以及可以判断文件信息是否具有有效性并接收的版本管理信息， 对于每个片段，通过使用文件信息，来自另一通信装置的第一加密片和第二加密片之一。 通信装置向密钥服务器发送用于请求解密密钥的请求消息，每个解密密钥用于解密针对不同的片段接收的第一加密片段和第二加密片段中的一个以及文件的版本管理信息 用于获得与每个片段对应的第一加密片和第二加密片中的一个的信息，并接收解密密钥。

公开(公告)号：US20090249490A1

公开(公告)日：2009-10-01

申请号：US12333704

申请日：2008-12-12

申请人： Kentaro UMESAWA ,  Ryuiti Koike ,  Hideki Matsumoto ,  Tatsuyuki Matsushita ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

发明人： Kentaro UMESAWA ,  Ryuiti Koike ,  Hideki Matsumoto ,  Tatsuyuki Matsushita ,  Taku Kato ,  Haruhiko Toyama ,  Hideaki Sato ,  Toru Kambayashi ,  Satoshi Ito

IPC分类号： H04L9/00

CPC分类号： H04L67/104 ,  H04L63/0428 ,  H04L63/06 ,  H04L67/1076 ,  H04L67/108 ,  H04L67/322

摘要： A communication apparatus stores encrypted pieces having plural pieces as a part of a content encrypted, and number of transmission times. At least one first piece is encrypted by plural different encryption keys. The communication apparatus selects as priority pieces plural encrypted pieces corresponding to at least one first piece among the first pieces, based on number of untransmitted encrypted pieces of which number of transmission times is zero among plural encrypted pieces of which first piece is encrypted, and stores priority piece information specifying the priority piece. When a piece request is received from other communication apparatus, the communication apparatus determines an encrypted piece to be transmitted, based on priority piece information, and transmits the encrypted piece to the other communication apparatus.

摘要翻译： 通信装置存储具有多个片段的加密片段作为加密的内容的一部分以及发送次数。 至少一个第一件由多个不同的加密密钥加密。 通信装置根据第一部分被加密的多个加密片段中的发送次数为零的未发送的加密片数，对与第一片段中的至少一个第一片相对应的多个加密片段进行优先选择，并存储 优先级信息指定优先级块。 当从其他通信装置接收到请求时，通信装置根据优先级信息确定要发送的加密件，并将加密件发送到另一通信装置。

公开(公告)号：US09317681B2

公开(公告)日：2016-04-19

申请号：US13533077

申请日：2012-06-26

申请人： Jun Kanai ,  Hiroshi Isozaki ,  Ryuiti Koike

发明人： Jun Kanai ,  Hiroshi Isozaki ,  Ryuiti Koike

IPC分类号： G06F7/04 ,  G06F21/53 ,  G06F21/54 ,  H04L29/06

CPC分类号： G06F21/53 ,  G06F21/54 ,  H04L63/20

摘要： According to an aspect of the embodiment, an information processing unit includes a browser unit that receives page files and execute a web application; an application range management unit that receives application range information at the start of execution of the web application, and stores that information in a memory unit; a termination detecting unit that, when the page file being processed by the browser unit changes, determines whether or not the web application being executed has terminated depending on whether or not the new page file is included in the application range information; a usability determining unit that determines whether or not an add-on for which a call request is issued is allowed to be used in the web application being executed; and an add-on calling unit that calls an add-on when determined that the add-on is allowed to be used in the web application being executed.

摘要翻译： 根据本实施例的一个方面，信息处理单元包括：浏览器单元，其接收页面文件并执行web应用; 应用范围管理单元，其在web应用的开始执行时接收应用范围信息，并将该信息存储在存储单元中; 终止检测单元，当由浏览器单元处理的页面文件改变时，根据新的页面文件是否包括在应用范围信息中，确定正在执行的web应用是否已经终止; 确定是否允许在正在执行的web应用中使用发出呼叫请求的附加组件的可用性确定单元; 以及一个附加呼叫单元，当确定允许在正在执行的Web应用程序中使用该附加组件时，调用附加组件。

公开(公告)号：US20130055340A1

公开(公告)日：2013-02-28

申请号：US13533077

申请日：2012-06-26

申请人： Jun Kanai ,  Hiroshi Isozaki ,  Ryuiti Koike

发明人： Jun Kanai ,  Hiroshi Isozaki ,  Ryuiti Koike

IPC分类号： G06F15/16 ,  G06F21/00

CPC分类号： G06F21/53 ,  G06F21/54 ,  H04L63/20

摘要： According to an aspect of the embodiment, an information processing unit includes a browser unit that receives page files and execute a web application; an application range management unit that receives application range information at the start of execution of the web application, and stores that information in a memory unit; a termination detecting unit that, when the page file being processed by the browser unit changes, determines whether or not the web application being executed has terminated depending on whether or not the new page file is included in the application range information; a usability determining unit that determines whether or not an add-on for which a call request is issued is allowed to be used in the web application being executed; and an add-on calling unit that calls an add-on when determined that the add-on is allowed to be used in the web application being executed.

摘要翻译： 根据本实施例的一个方面，信息处理单元包括：浏览器单元，其接收页面文件并执行web应用; 应用范围管理单元，其在web应用的开始执行时接收应用范围信息，并将该信息存储在存储单元中; 终止检测单元，当由浏览器单元处理的页面文件改变时，根据新的页面文件是否包括在应用范围信息中，确定正在执行的web应用是否已经终止; 确定是否允许在正在执行的web应用中使用发出呼叫请求的附加组件的可用性确定单元; 以及一个附加呼叫单元，当确定允许在正在执行的Web应用程序中使用该附加组件时，调用附加组件。