Watermarking method and apparatus for tracking hacked content and method and apparatus for blocking hacking of content using the same
    2.
    发明授权
    Watermarking method and apparatus for tracking hacked content and method and apparatus for blocking hacking of content using the same 有权
    用于跟踪被黑内容的水印方法和装置,以及用于阻止使用该内容的内容的黑客攻击的方法和装置

    公开(公告)号:US09384332B2

    公开(公告)日:2016-07-05

    申请号:US13421181

    申请日:2012-03-15

    CPC classification number: G06F21/10 G06F21/16

    Abstract: Watermarking method and apparatus for tracking hacking and method and apparatus for blocking hacking of content are provided. The watermarking method includes: obtaining device information from a reception device, with which content is shared, through a determined network channel; generating watermark data based on the obtained device information; and generating watermarked multimedia content by inserting the generated watermark data into content. The method of blocking hacking of content includes: if hacked content is found, detecting watermark data from the hacked content; detecting transmission and reception device information from the detected watermark data; and extracting a progress route of the content based on the detected transmission and reception device information and performing revocation on a hacked device.

    Abstract translation: 提供了用于跟踪黑客的水印方法和装置,以及用于阻止黑客入侵的方法和装置。 水印方法包括:通过确定的网络信道从接收设备获取与哪个内容共享的设备信息; 基于获得的设备信息生成水印数据; 以及通过将生成的水印数据插入到内容中来产生水印多媒体内容。 拦截内容黑客的方法包括:如果发现被黑内容,则从被黑内容中检测水印数据; 从检测到的水印数据中检测发送和接收设备信息; 以及基于检测到的发送和接收设备信息提取内容的进行路由,并在被黑客设备上执行撤销。

    METHOD AND APPARATUS FOR ENCRYPTING TRANSPORT STREAM OF MULTIMEDIA CONTENT, AND METHOD AND APPARATUS FOR DECRYPTING TRANSPORT STREAM OF MULTIMEDIA CONTENT
    4.
    发明申请
    METHOD AND APPARATUS FOR ENCRYPTING TRANSPORT STREAM OF MULTIMEDIA CONTENT, AND METHOD AND APPARATUS FOR DECRYPTING TRANSPORT STREAM OF MULTIMEDIA CONTENT 失效
    用于加密多媒体内容运输流的方法和装置,以及用于分解多媒体内容的运输流的方法和装置

    公开(公告)号:US20100195827A1

    公开(公告)日:2010-08-05

    申请号:US12509675

    申请日:2009-07-27

    Abstract: A method of transporting an encrypted stream of multimedia content is provided. In the method, when a packet contains data of a predetermined length including selected data from pieces of data corresponding to the multimedia content and a header, key information, and first time information from among pieces of information included in a selected packet from among at least one packet are received, and encryption information is determined from the key information and the first time information, according to a key derivation function. The first time information is variable with time. The at least one packet including data corresponding to the multimedia content is encrypted using the encryption information. The at least one encrypted packet and the key information are transported.

    Abstract translation: 提供了一种传输多媒体内容的加密流的方法。 在该方法中,当分组包含从包括多媒体内容的数据的选定数据的预定长度的数据以及包括在所选择的分组中的至少一个信息中的报头,密钥信息和第一时间信息 接收一个分组,根据密钥导出函数从密钥信息和第一时间信息确定加密信息。 第一次信息随时间变化。 使用加密信息来加密包括对应于多媒体内容的数据的至少一个分组。 传送至少一个加密分组和密钥信息。

    METHOD AND APPARATUS FOR PROTECTING DIGITAL CONTENT STORED IN USB MASS STORAGE DEVICE USING TIME INFORMATION
    5.
    发明申请
    METHOD AND APPARATUS FOR PROTECTING DIGITAL CONTENT STORED IN USB MASS STORAGE DEVICE USING TIME INFORMATION 审中-公开
    使用时间信息保护存储在USB存储设备中的数字内容的方法和装置

    公开(公告)号:US20080247546A1

    公开(公告)日:2008-10-09

    申请号:US11949230

    申请日:2007-12-03

    CPC classification number: H04L9/0838 H04L2209/60

    Abstract: Provided is a method of preventing digital content stored in a universal serial bus (USB) mass storage (UMS) device from being distributed without restriction. In the method, registration data is encrypted in order to allow a UMS device to decrypt and use digital content using time information only within a predetermined term of validity. Accordingly, even if encrypted registration data of a UMS device is disclosed, it is possible to make it difficult for unauthorized devices to store the registration data, thereby preventing content of the UMS device from being distributed without restriction.

    Abstract translation: 提供了一种防止存储在通用串行总线(USB)大容量存储(UMS)设备中的数字内容的方法不受限制地分发。 在该方法中,为了允许UMS设备仅在预定的有效期限内使用时间信息解密和使用数字内容,加密了注册数据。 因此,即使公开了UMS装置的加密登记数据,也可能使未授权装置难以存储登记数据,从而防止UMS装置的内容无限制地分发。

    Method of sharing bus key and apparatus therefor
    6.
    发明授权
    Method of sharing bus key and apparatus therefor 有权
    共享总线密钥及其设备的方法

    公开(公告)号:US07975141B2

    公开(公告)日:2011-07-05

    申请号:US11875187

    申请日:2007-10-19

    CPC classification number: H04L9/0838 H04L9/0891 H04L2209/603

    Abstract: A method and apparatus of sharing a bus key is provided, the method including receiving at a first device a device key, encrypted using an encryption key, from a storage device; decrypting the encrypted device key using a decryption key corresponding to the encryption key; creating a random number, and generating a bus key using the created random number and the decrypted device key, by which data to be transmitted through a bus can be encrypted using the bus key; and transmitting the generated bus key to a predetermined device connected to the first device via the bus.

    Abstract translation: 提供共享总线密钥的方法和装置,该方法包括:在第一设备处从存储设备接收使用加密密钥加密的设备密钥; 使用与所述加密密钥对应的解密密钥解密所述加密设备密钥; 创建随机数,并且使用所创建的随机数和解密的设备密钥生成总线密钥,通过其可以使用总线密钥来加密要通过总线发送的数据; 以及经由所述总线将所生成的总线密钥发送到连接到所述第一设备的预定设备。

    Method and apparatus for efficiently fixing transformed part of content
    7.
    发明申请
    Method and apparatus for efficiently fixing transformed part of content 有权
    用于有效地固定内容的转换部分的方法和装置

    公开(公告)号:US20070022088A1

    公开(公告)日:2007-01-25

    申请号:US11488692

    申请日:2006-07-19

    Abstract: Provided are a method and apparatus for effectively fixing scrambled content. The method includes checking fixing information for a program map table (PMT) packet of packets constituting the content, the fixing information being used to fix a transformed part of the content; extracting location information of a next PMT packet containing fixing data for fixing the transformed part of the content from the fixing information of the PMT packet; and fixing the transformed part of the content by using the fixing data in the next PMT packet indicated by the extracted location information. Accordingly, it is possible to easily detect a location of the content, which stores the fixing information, thereby expediting fixing of the transformed content.

    Abstract translation: 提供了一种有效地固定加扰内容的方法和装置。 该方法包括:检查构成内容的分组的节目映射表(PMT)分组的固定信息,固定信息用于固定内容的变换部分; 从PMT分组的固定信息中提取包含用于固定内容的转换部分的固定数据的下一个PMT分组的位置信息; 以及通过使用由所提取的位置信息指示的下一个PMT分组中的固定数据来固定内容的变换部分。 因此,可以容易地检测存储定影信息的内容的位置,从而加速变形内容的固定。

    Method and apparatus for controlling transmission of content data
    8.
    发明授权
    Method and apparatus for controlling transmission of content data 有权
    控制内容数据传输的方法和装置

    公开(公告)号:US09590960B2

    公开(公告)日:2017-03-07

    申请号:US12026654

    申请日:2008-02-06

    Abstract: Provided are a method and apparatus for controlling transmission of content data. In the method, a communication channel is initially established to transmit the content data, the content data is transmitted through the established communication channel, verification is performed a plurality of times to determine whether the content data is transmitted within an acceptable transmission range, and whether to continue the transmission of the content data is determined according to the verification result. Accordingly, when a client moves to a location outside a predetermined acceptable transmission range in a wireless environment, a server stops transmission of the content data. In addition, content data can be continuously transmitted regardless of interference caused by a temporary obstacle between a server and a client.

    Abstract translation: 提供一种用于控制内容数据传输的方法和装置。 在该方法中,初始建立通信信道以发送内容数据,通过建立的通信信道发送内容数据,多次执行验证,以确定内容数据是否在可接受的传输范围内发送,以及是否 根据验证结果确定内容数据的继续传输。 因此,当客户端移动到无线环境中的预定可接受传输范围之外的位置时,服务器停止发送内容数据。 此外,无论服务器和客户端之间的临时障碍物引起的干扰如何,都可以连续地发送内容数据。

    Method and apparatus for encrypting transport stream of multimedia content, and method and apparatus for decrypting transport stream of multimedia content
    9.
    发明授权
    Method and apparatus for encrypting transport stream of multimedia content, and method and apparatus for decrypting transport stream of multimedia content 失效
    用于加密多媒体内容的传输流的方法和装置,以及用于解密多媒体内容的传输流的方法和装置

    公开(公告)号:US08281128B2

    公开(公告)日:2012-10-02

    申请号:US12509675

    申请日:2009-07-27

    Abstract: A method of transporting an encrypted stream of multimedia content is provided. In the method, when a packet contains data of a predetermined length including selected data from pieces of data corresponding to the multimedia content and a header, key information, and first time information from among pieces of information included in a selected packet from among at least one packet are received, and encryption information is determined from the key information and the first time information, according to a key derivation function. The first time information is variable with time. The at least one packet including data corresponding to the multimedia content is encrypted using the encryption information. The at least one encrypted packet and the key information are transported.

    Abstract translation: 提供了一种传输多媒体内容的加密流的方法。 在该方法中,当分组包含从包括多媒体内容的数据的选定数据的预定长度的数据以及包括在所选择的分组中的至少一个信息中的报头,密钥信息和第一时间信息 接收一个分组,根据密钥导出函数从密钥信息和第一时间信息确定加密信息。 第一次信息随时间变化。 使用加密信息来加密包括对应于多媒体内容的数据的至少一个分组。 传送至少一个加密分组和密钥信息。

    METHOD OF SHARING BUS KEY AND APPARATUS THEREFOR
    10.
    发明申请
    METHOD OF SHARING BUS KEY AND APPARATUS THEREFOR 有权
    共享钥匙的方法及其设备

    公开(公告)号:US20080267396A1

    公开(公告)日:2008-10-30

    申请号:US11875187

    申请日:2007-10-19

    CPC classification number: H04L9/0838 H04L9/0891 H04L2209/603

    Abstract: A method and apparatus of sharing a bus key is provided, the method including receiving at a first device a device key, encrypted using an encryption key, from a storage device; decrypting the encrypted device key using a decryption key corresponding to the encryption key; creating a random number, and generating a bus key using the created random number and the decrypted device key, by which data to be transmitted through a bus can be encrypted using the bus key; and transmitting the generated bus key to a predetermined device connected to the first device via the bus.

    Abstract translation: 提供共享总线密钥的方法和装置,该方法包括:在第一设备处从存储设备接收使用加密密钥加密的设备密钥; 使用与所述加密密钥对应的解密密钥解密所述加密设备密钥; 创建随机数,并且使用所创建的随机数和解密的设备密钥生成总线密钥,通过其可以使用总线密钥来加密要通过总线发送的数据; 以及经由所述总线将所生成的总线密钥发送到连接到所述第一设备的预定设备。

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