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    • 1. 发明授权
    • Method of creating domain based on public key cryptography
    • 基于公共密钥加密技术创建域的方法
    • US07996322B2
    • 2011-08-09
    • US10867817
    • 2004-06-16
    • Yong-kuk YouMyung-sun KimYang-lim ChoiYong-jin Jang
    • Yong-kuk YouMyung-sun KimYang-lim ChoiYong-jin Jang
    • G06F21/00
    • H04L63/0435G06Q20/3829H04L9/0822H04L9/3263H04L63/0823H04L2209/60
    • A method of creating a domain based on public key cryptography includes providing, by a content-providing server, a list of devices requesting content, and selecting, by a user, a device from the list; transmitting, by the server, discrimination information on revoked devices to the device; extracting, by the device having received the discrimination information, a secret value from the discrimination information, preparing a certificate using the extracted secret value, and transmitting device information and the certificate of the device to the server; verifying, by the server, the certificate and creating a domain ID and a domain key using the device information; encrypting, by the server, the domain ID and the domain key using a unique public key of the device and transmitting the encrypted domain ID and domain key to the device; and restoring, by the device, the domain key using a unique secret key of the device.
    • 基于公钥密码术创建域的方法包括:由内容提供服务器提供请求内容的设备列表,并由用户从列表中选择设备; 由所述服务器向所述设备发送被撤销设备的识别信息; 通过已经从识别信息接收到鉴别信息的设备提取秘密值,使用提取的秘密值准备证书,并将设备信息和设备的证书发送到服务器; 由服务器验证证书,并使用设备信息创建域ID和域密钥; 由服务器使用设备的唯一公钥加密域ID和域密钥,并将加密的域ID和域密钥发送到设备; 以及使用设备的唯一秘密密钥来恢复该设备的域密钥。
    • 3. 发明申请
    • Method of authenticating device using certificate, and digital content processing device for performing device authentication using the same
    • 使用证书认证设备的方法,以及使用其进行设备认证的数字内容处理设备
    • US20050086504A1
    • 2005-04-21
    • US10927239
    • 2004-08-27
    • Yong-kuk YouMyung-sun KimYong-jin Jang
    • Yong-kuk YouMyung-sun KimYong-jin Jang
    • G06F12/14H04L9/32H04L29/06
    • H04L63/0435H04L9/3242H04L9/3268H04L63/0823H04L2209/60
    • Methods of authenticating a device using a certificate, and digital content processing devices for performing device authentication using the methods are disclosed. The method of authenticating a digital content processing device includes generating first secret information on a first digital content processing device with a public key for encryption/decryption of digital content, generating a first certificate using the generated first secret information and the public key and a device identifier of the first digital content processing device, transmitting the generated first certificate to a second digital content processing device, generating second secret information on the second digital content processing device, generating a second certificate using the generated second secret information and the public key and the device identifier of the first digital content processing device, and comparing the generated first certificate with the generated second certificate to confirm whether both the certificates are the same.
    • 公开了使用证书认证设备的方法,以及使用该方法进行设备认证的数字内容处理设备。 认证数字内容处理装置的方法包括利用用于数字内容的加密/解密的公共密钥在第一数字内容处理装置上生成第一秘密信息,使用所生成的第一秘密信息和公开密钥生成第一证书,以及装置 将所生成的第一证书发送给第二数字内容处理装置,在第二数字内容处理装置上生成第二秘密信息,使用生成的第二秘密信息和公开密钥生成第二证书, 第一数字内容处理装置的设备标识符,以及将生成的第一证书与所生成的第二证书进行比较,以确认证书是否相同。
    • 6. 发明申请
    • Method of receiving session key in home network and method of reproducing content using the same
    • 在家庭网络中接收会话密钥的方法和使用它们再现内容的方法
    • US20060107051A1
    • 2006-05-18
    • US11268647
    • 2005-11-08
    • Jae-heung LeeMyung-sun KimSung-hyu HanYong-kuk YouBong-seon KimYoung-sun Yoon
    • Jae-heung LeeMyung-sun KimSung-hyu HanYong-kuk YouBong-seon KimYoung-sun Yoon
    • H04L9/00
    • H04L9/0822H04L63/062H04L2209/60H04L2463/101
    • A method of receiving a session key in a home network and a method of reproducing content using the same. The method of receiving a session key from a home server in a home network, includes: (a) whenever one of members of the home network changes, receiving and storing the session key and a session version indicating a session key generation sequence; (b) receiving a license necessary for reproducing predetermined content; and (c) determining a session key necessary for reproducing the predetermined content based on an encoding session version (ESV), which is a session version extracted from the license, and the stored session version. A home server transmits a session key and a session version to a user device whenever a subscriber to a home network changes, and the user device determines a session key using the session version, thereby performing a variety of domain administration by freely transmitting content between user devices.
    • 一种在家庭网络中接收会话密钥的方法以及使用该会话密钥再现内容的方法。 从家庭网络中的家庭服务器接收会话密钥的方法包括:(a)家庭网络的每个成员之一改变,接收和存储会话密钥以及指示会话密钥生成序列的会话版本; (b)接收再现预定内容所需的许可证; 以及(c)基于从许可证中提取的会话版本的编码会话版本(ESV)和所存储的会话版本,确定再现预定内容所必需的会话密钥。 家庭服务器每当家庭网络的用户改变时向用户设备发送会话密钥和会话版本,并且用户设备使用会话版本来确定会话密钥,从而通过在用户之间自由发送内容来执行各种域管理 设备。
    • 7. 发明申请
    • Method and apparatus for receiving broadcast content
    • 用于接收广播内容的方法和装置
    • US20060104442A1
    • 2006-05-18
    • US11242076
    • 2005-10-04
    • Sung-hyu HanMyung-sun KimYong-kuk YouYoung-sun YoonBong-seon KimJae-heung Lee
    • Sung-hyu HanMyung-sun KimYong-kuk YouYoung-sun YoonBong-seon KimJae-heung Lee
    • H04L9/00
    • H04L9/0825H04L2209/601
    • An apparatus for receiving broadcast content is provided. The apparatus includes a receiving unit generating the broadcast content from a broadcast stream received from a content provider via a broadcast channel; a content encrypting unit encrypting the broadcast content using a content key; and a link generating unit generating a secure link to a user device by exchanging link messages with the user device, and transmitting the content key to the user device via one of the link messages even when the apparatus is not connected to a content provider. A first link message of the link messages includes one of a public key of the user device and a public key of the apparatus, and a second link message of the link messages includes one of a private key of the apparatus, a secret key of the apparatus, and a secret key of the user device.
    • 提供了一种用于接收广播内容的装置。 该装置包括从广播信道从内容提供商接收的广播流生成广播内容的接收单元; 内容加密单元,使用内容密钥对广播内容进行加密; 以及链接生成单元,通过与用户设备交换链接消息来生成到用户设备的安全链接,并且即使当设备未连接到内容提供商时,也通过链接消息之一将内容密钥发送到用户设备。 链接消息的第一链接消息包括用户设备的公钥和设备的公开密钥之一,并且链路消息的第二链路消息包括设备的私钥中的一个,秘密密钥 设备和用户设备的秘密密钥。
    • 9. 发明授权
    • Method of receiving session key in home network and method of reproducing content using the same
    • 在家庭网络中接收会话密钥的方法和使用它们再现内容的方法
    • US07848526B2
    • 2010-12-07
    • US11268647
    • 2005-11-08
    • Jae-heung LeeMyung-sun KimSung-hyu HanYong-kuk YouBong-seon KimYoung-sun Yoon
    • Jae-heung LeeMyung-sun KimSung-hyu HanYong-kuk YouBong-seon KimYoung-sun Yoon
    • H04L9/00
    • H04L9/0822H04L63/062H04L2209/60H04L2463/101
    • A method of receiving a session key in a home network and a method of reproducing content using the same. The method of receiving a session key from a home server in a home network, includes: (a) whenever one of members of the home network changes, receiving and storing the session key and a session version indicating a session key generation sequence; (b) receiving a license necessary for reproducing predetermined content; and (c) determining a session key necessary for reproducing the predetermined content based on an encoding session version (ESV), which is a session version extracted from the license, and the stored session version. A home server transmits a session key and a session version to a user device whenever a subscriber to a home network changes, and the user device determines a session key using the session version, thereby performing a variety of domain administration by freely transmitting content between user devices.
    • 一种在家庭网络中接收会话密钥的方法以及使用该会话密钥再现内容的方法。 从家庭网络中的家庭服务器接收会话密钥的方法包括:(a)家庭网络的每个成员之一改变,接收和存储会话密钥以及指示会话密钥生成序列的会话版本; (b)接收再现预定内容所需的许可证; 以及(c)基于从许可证中提取的会话版本的编码会话版本(ESV)和所存储的会话版本,确定再现预定内容所必需的会话密钥。 家庭服务器每当家庭网络的用户改变时向用户设备发送会话密钥和会话版本,并且用户设备使用会话版本来确定会话密钥,从而通过在用户之间自由发送内容来执行各种域管理 设备。