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1. 发明申请

US20090274305A1 METHOD AND APPARATUS FOR TRANSMITTING CONTENT KEY 审中-公开
标题翻译：用于发送内容的方法和装置
公开(公告)号：US20090274305A1
公开(公告)日：2009-11-05
申请号：US12271379
申请日：2008-11-14
申请人： Sun-nam LEE , Choong-hoon LEE , Young-sun YOON , Hak-soo JU , Jin-mok KIM
发明人： Sun-nam LEE , Choong-hoon LEE , Young-sun YOON , Hak-soo JU , Jin-mok KIM
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L9/0891 , H04L2209/601
摘要： Provided is a method of transmitting content keys to nodes arranged in a hierarchical structure which includes a plurality of node groups each including a predetermined number of the nodes. In this method, revoke information that includes identifiers of revoked node groups in the hierarchical structure, the total number of independent revoked nodes, and identifiers of the independent revoked nodes is generated. The revoked node groups are node groups consisting of only revoked nodes, and the independent revoked nodes are revoked nodes not belonging to any of the revoked node groups. Then, encrypted content keys are obtained by encrypting content keys using broadcast encryption, by using an encryption key set that has a form that cannot be generated using a decryption key set that the revoked nodes possess, and a set of encrypted content keys is generated. Thereafter, the revoke information and the set of the encrypted content keys are transmitted to all of the nodes arranged in the hierarchical structure.
摘要翻译：提供了将内容密钥发送到分层结构中布置的节点的方法，该方法包括多个节点组，每个节点组包括预定数量的节点。在该方法中，撤销包括层次结构中的撤销节点组的标识符的信息，独立撤销节点的总数和独立撤销节点的标识符。撤销的节点组是仅由撤销节点组成的节点组，独立撤销节点是不属于任何撤销节点组的撤销节点。然后，通过使用具有不能使用撤销节点拥有的解密密钥集而不能生成的形式的加密密钥集，并且生成一组加密的内容密钥，通过使用广播加密来加密内容密钥来获得加密的内容密钥。此后，撤销信息和加密的内容密钥的集合被发送到以分层结构排列的所有节点。

2. 发明申请

US20090304185A1 METHOD OF TRACING DEVICE KEYS FOR BROADCAST ENCRYPTION 有权
标题翻译：跟踪用于广播加密的设备的方法
公开(公告)号：US20090304185A1
公开(公告)日：2009-12-10
申请号：US12393056
申请日：2009-02-26
申请人： Hak-soo JU , Choong-hoon LEE , Young-sun YOON , Sun-nam LEE , Jin-mok KIM
发明人： Hak-soo JU , Choong-hoon LEE , Young-sun YOON , Sun-nam LEE , Jin-mok KIM
IPC分类号： H04L9/06 , H04L9/28 , G06F17/30
CPC分类号： H04L9/0891 , H04L9/0836 , H04L9/3236 , H04L63/126 , H04L2209/38 , H04L2209/601 , H04N7/16 , H04N21/2585 , H04N21/26613 , H04N21/64792
摘要： Provided are a method of tracing a device key in a user key management system using a hierarchical hash chain broadcast encryption scheme (HBES) algorithm, a user key management system for executing the method of tracing a device key, and a computer program for executing the method of tracing a device key. The method of tracing a device key of an illegal decoder in a user key management system for broadcast encryption includes: tracing a device key using a binary search; and revoking the traced device key. The technology according to the present invention can be applied to prevent exposure of the device keys to hacking. The present invention provides a method of tracing which can be applied to an HBES algorithm structure.
摘要翻译：提供了一种使用分层哈希链广播加密方案（HBES）算法在用户密钥管理系统中跟踪设备密钥的方法，用于执行跟踪设备密钥的方法的用户密钥管理系统和用于执行设备密钥的计算机程序跟踪设备密钥的方法。在用于广播加密的用户密钥管理系统中跟踪非法解码器的设备密钥的方法包括：使用二进制搜索跟踪设备密钥; 并撤销跟踪的设备密钥。根据本发明的技术可以用于防止设备密钥暴露于黑客。本发明提供了可应用于HBES算法结构的跟踪方法。

3. 发明申请

US20100215342A1 METHOD AND APPARATUS FOR REPRODUCING VIDEO USING WATERMARK INSERTING FUNCTION 有权
标题翻译：使用水印插入功能再现视频的方法和装置
公开(公告)号：US20100215342A1
公开(公告)日：2010-08-26
申请号：US12702369
申请日：2010-02-09
申请人： Choong-hoon LEE , Jin-mok KIM , Ji-young KIM
发明人： Choong-hoon LEE , Jin-mok KIM , Ji-young KIM
IPC分类号： H04N5/91 , G06K9/00
CPC分类号： H04N9/8715 , H04N5/913 , H04N21/42684 , H04N21/4325 , H04N21/8358 , H04N2005/91335
摘要： A method and apparatus for reproducing a video using a watermark inserting function. The method of inserting a watermark into a video being reproduced, using an on-screen-display (OSD) data mixer included in a video reproduction apparatus, includes determining a watermark pattern indicating information on reproduction of the original video. The watermark pattern is converted into watermark data capable of being recognized by an OSD data mixer and synthesized with the video being reproduced, using the OSD data mixer.
摘要翻译：一种使用水印插入功能再现视频的方法和装置。使用包括在视频再现设备中的屏幕显示（OSD）数据混合器将水印插入正被再现的视频中的方法包括：确定指示关于原始视频的再现的信息的水印图案。使用OSD数据混合器将水印图案转换为能够被OSD数据混合器识别并与正在再现的视频合成的水印数据。

4. 发明申请

US20120233019A1 METHOD AND APPARATUS FOR MANAGING CONTENT TO BE SHARED AMONG DEVICES 审中-公开
标题翻译：用于管理在设备上共享的内容的方法和装置
公开(公告)号：US20120233019A1
公开(公告)日：2012-09-13
申请号：US13349214
申请日：2012-01-12
申请人： Yong-ho HWANG , Choong-hoon LEE , Sang-su CHOI , Jin-mok KIM
发明人： Yong-ho HWANG , Choong-hoon LEE , Sang-su CHOI , Jin-mok KIM
IPC分类号： G06F21/24 , G06F15/16 , G06Q30/00
CPC分类号： G06Q30/06 , G06F21/10
摘要： A method and apparatus for managing content among user devices is provided. The method includes requesting, from a first server, a list of Digital Rights Management (DRM) supported by at least one user device upon receiving a request to download content; using the list of DRM received from the first server to assign at least one second server supported by the at least one user device; and communicating with the assigned at least one second server to download, to the end user device, the content with at least one DRM license supported by the at least one user device.
摘要翻译：提供了一种用于在用户设备之间管理内容的方法和装置。所述方法包括：从第一服务器请求在接收到下载内容的请求时由至少一个用户设备支持的数字版权管理（DRM）列表; 使用从所述第一服务器接收的DRM列表来分配由所述至少一个用户设备支持的至少一个第二服务器; 以及与所分配的至少一个第二服务器通信，以至少一个用户设备支持的至少一个DRM许可证向终端用户设备下载内容。

5. 发明申请

US20120199647A1 METHOD AND APPARATUS FOR MANAGING USER DEVICES AND CONTENTS BY USING QUICK RESPONSE CODES 有权
标题翻译：通过使用快速响应代码来管理用户设备和内容的方法和设备
公开(公告)号：US20120199647A1
公开(公告)日：2012-08-09
申请号：US13240315
申请日：2011-09-22
申请人： Yong-ho HWANG , Choong-hoon LEE , Sang-su CHOI , Jin-mok KIM
发明人： Yong-ho HWANG , Choong-hoon LEE , Sang-su CHOI , Jin-mok KIM
IPC分类号： G06F17/00 , G06K19/06
CPC分类号： G06Q10/087
摘要： A method and apparatus for managing user devices and contents with quick response (QR) codes. An image of a QR code displayed on a user terminal is captured; the captured image of the QR code is analyzed, and a domain registration request message is generated based on the QR code; and the domain registration request message is transmitted to a domain server, and a domain registration response message is received from the domain server.
摘要翻译：一种用快速响应（QR）码管理用户设备和内容的方法和装置。捕获在用户终端上显示的QR码的图像; 分析QR码的拍摄图像，并根据QR码生成域注册请求消息; 并将域注册请求消息发送到域服务器，并从域服务器接收域注册响应消息。

6. 发明申请

US20090204818A1 METHOD AND APPARATUS FOR GENERATING AND VERIFYING ELECTRONIC SIGNATURE OF SOFTWARE DATA, AND COMPUTER READABLE RECORDING MEDIUM THEREOF 有权
标题翻译：用于生成和验证软件数据的电子签名的方法和装置，以及计算机可读记录介质
公开(公告)号：US20090204818A1
公开(公告)日：2009-08-13
申请号：US12191464
申请日：2008-08-14
申请人： Jun-bum SHIN , Choong-hoon LEE , Su-hyun NAM , Yang-lim CHOI , Ji-soon PARK
发明人： Jun-bum SHIN , Choong-hoon LEE , Su-hyun NAM , Yang-lim CHOI , Ji-soon PARK
IPC分类号： H04L9/06
CPC分类号： H04L9/3247 , G06F21/57 , G06F21/64 , H04L9/3236 , H04L2209/38 , H04L2209/603
摘要： Provided are methods of generating and verifying an electronic signature of software data, wherein software data is split into a plurality of blocks, electronic signatures corresponding to each of the blocks are generated, and some of the electronic signatures are randomly selected for verification. Accordingly, a time required for verifying an electronic signature can be reduced while maintaining the advantages of an electronic signature system.
摘要翻译：提供了生成和验证软件数据的电子签名的方法，其中软件数据被分割成多个块，生成与每个块相对应的电子签名，并且随机选择一些电子签名用于验证。因此，可以在维护电子签名系统的优点的同时减少验证电子签名所需的时间。

7. 发明申请

US20080301436A1 METHOD AND APPARATUS FOR PERFORMING AUTHENTICATION BETWEEN CLIENTS USING SESSION KEY SHARED WITH SERVER 审中-公开
标题翻译：使用与服务器共享的会话进行客户端认证的方法和设备
公开(公告)号：US20080301436A1
公开(公告)日：2008-12-04
申请号：US11947211
申请日：2007-11-29
申请人： Jun YAO , Choong-hoon LEE , Yong-kuk YOU
发明人： Jun YAO , Choong-hoon LEE , Yong-kuk YOU
IPC分类号： H04L9/32
CPC分类号： H04L9/3236 , H04L9/321 , H04L9/3271 , H04L2209/603
摘要： Provided is a method and apparatus for performing authentication between clients that complete authentication with a server. The method includes receiving first authentication information generated using the second session key from the server; receiving second authentication information generated using the second session key from the second client; and determining whether the authentication with the second client is successful using the first authentication information and the second authentication information.
摘要翻译：提供了一种用于在完成与服务器的认证的客户端之间执行认证的方法和装置。该方法包括从服务器接收使用第二会话密钥生成的第一认证信息; 从所述第二客户端接收使用所述第二会话密钥生成的第二认证信息; 以及使用所述第一认证信息和所述第二认证信息来确定与所述第二客户端的认证是否成功。

8. 发明申请

US20080288784A1 METHOD OF INSTALLING SOFTWARE FOR USING DIGITAL CONTENT AND APPARATUS FOR PLAYING DIGITAL CONTENT 有权
标题翻译：使用数字内容的软件安装方法和数字内容的播放方法
公开(公告)号：US20080288784A1
公开(公告)日：2008-11-20
申请号：US12019279
申请日：2008-01-24
申请人： Choong-hoon LEE , Jun Yao , Yong-kuk You
发明人： Choong-hoon LEE , Jun Yao , Yong-kuk You
IPC分类号： G06F21/00
CPC分类号： G06F21/10
摘要： A method of and apparatus for installing software for using digital content and are provided. The method of installing software for using digital content includes: transmitting a request for the software; transmitting security information indicating a security status of a device in which the software is to be installed; and receiving the software from an external apparatus that received the request and security information. According to the method and apparatus, the software can be dynamically securely installed, thereby allowing a variety of digital contents to be used and enhancing the utilization of the device.
摘要翻译：一种用于安装使用数字内容的软件的方法和装置。安装使用数字内容的软件的方法包括：发送软件请求; 发送指示要安装软件的设备的安全状态的安全信息; 以及从接收到请求和安全信息的外部设备接收软件。根据该方法和装置，可以动态地安全地安装软件，从而允许使用各种数字内容并增强设备的利用。

9. 发明申请

US20080292103A1 METHOD AND APPARATUS FOR ENCRYPTING AND TRANSMITTING CONTENTS, AND METHOD AND APPARATUS FOR DECRYPTING ENCRYPTED CONTENTS 审中-公开
标题翻译：用于加密和传输内容的方法和装置，以及用于分解加密内容的方法和装置
公开(公告)号：US20080292103A1
公开(公告)日：2008-11-27
申请号：US11942072
申请日：2007-11-19
申请人： Choong-hoon LEE , Jun Yao , Yong-kuk You
发明人： Choong-hoon LEE , Jun Yao , Yong-kuk You
IPC分类号： H04L9/06
CPC分类号： H04L9/0825 , H04L2209/60
摘要： Provided are a method and apparatus for encrypting and transmitting contents and decrypting the encrypted contents in order to improve security for authority of use of the contents in a contents used environment by installing various content protection software in a content device. The method of encrypting and transmitting the contents includes: receiving contents to be transmitted; encrypting the contents using a content key which is an encryption key according to the received contents; encrypting the content key using an external device key of an external device which is permitted to receive the encrypted contents to be used and a software key of a software program which is executed in the external device and permitted to decrypt the encrypted contents; and transmitting the encrypted contents and the encrypted content key to the external device. Therefore, security for authority of use of the contents, and more particularly, security for the content key are improved so that illegal distribution of the contents can be prevented.
摘要翻译：提供了一种用于加密和发送内容并解密加密内容的方法和装置，以便通过在内容设备中安装各种内容保护软件来提高在内容使用环境中使用内容的安全性。加密和发送内容的方法包括：接收要发送的内容; 使用作为根据接收到的内容的加密密钥的内容密钥加密内容; 使用允许接收要使用的加密内容的外部设备的外部设备密钥和在外部设备中执行并允许对加密内容进行解密的软件程序的软件密钥对内容密钥进行加密; 并将加密的内容和加密的内容密钥发送到外部设备。因此，提高使用内容的权限的安全性，特别是内容密钥的安全性，从而可以防止内容的非法分发。

10. 发明申请

US20100023760A1 METHOD, SYSTEM, AND DATA SERVER FOR CHECKING REVOCATION OF CONTENT DEVICE AND TRANSMITTING DATA 有权
标题翻译：方法，系统和数据服务器，用于检查内容设备的撤销和发送数据
公开(公告)号：US20100023760A1
公开(公告)日：2010-01-28
申请号：US11940498
申请日：2007-11-15
申请人： Choong-hoon LEE , Yong-kuk YOU , Jun YAO
发明人： Choong-hoon LEE , Yong-kuk YOU , Jun YAO
IPC分类号： H04L9/00
CPC分类号： G06F21/10 , G06F2221/2129
摘要： A method of checking revocation of a device and software, and transmitting data to a secure device and secure software whose keys have not been leaked is provided. The method includes receiving authentication information of a device requesting transmission of data, and authentication information of software accessing the data in the device; checking revocation of the device and the software, based on the received authentication information; and transmitting the data to the software of the device, when the device and the software are not revoked as a result of the checking. By doing so, during transmission of data, such as content or a license, it is possible to check security of a device and software being executed in the device, so that the data can be more safely transmitted.
摘要翻译：提供一种检查设备和软件的撤销以及向安全设备发送数据并保护其密钥尚未泄露的软件的方法。该方法包括接收请求传输数据的设备的认证信息，以及访问设备中的数据的软件的认证信息; 基于所接收的认证信息检查设备和软件的撤销; 并且当所述设备和所述软件作为所述检查的结果不被撤销时，将所述数据发送到所述设备的软件。通过这样做，在诸如内容或许可证的数据传输期间，可以检查在设备中正在执行的设备和软件的安全性，使得可以更安全地发送数据。

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