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1. 发明申请

US20080056493A1 MANAGING COPY PROTECTION INFORMATION OF ENCRYPTED DATA 审中-公开
标题翻译：管理加密数据的复制保护信息
公开(公告)号：US20080056493A1
公开(公告)日：2008-03-06
申请号：US11932157
申请日：2007-10-31
申请人： Byung KIM , Hyung Kim , Alexandre Stechkine
发明人： Byung KIM , Hyung Kim , Alexandre Stechkine
IPC分类号： H04N7/167
CPC分类号： G11B20/00086 , G06F21/10 , G06F2221/0704 , G11B7/24082 , G11B20/00195 , G11B20/0021 , G11B20/00246 , G11B20/00369
摘要： A method for managing copy protection information of a recording medium is disclosed. A data stream encrypted using copy protection information is recorded in a data area of an optical disc such as a write once optical disc or a rewritable optical disc, while the copy protection information and a drive ID are recorded together in a key locker of the optical disc. When a data stream of an optical disc is reproduced, reading and decryption of the copy protection information is selectively performed depending on whether the drive ID recorded in the key locker and a drive ID managed in an optical disc drive, into which the optical disc is inserted, are identical. This prevents contents such as broadcast programs recorded in an optical disc from being illegally duplicated.
摘要翻译：公开了一种用于管理记录介质的复制保护信息的方法。使用复制保护信息加密的数据流被记录在诸如一次写入光盘或可重写光盘的光盘的数据区中，而复制保护信息和驱动器ID被一起记录在光学的钥匙锁光盘。当再现光盘的数据流时，根据记录在密钥储物柜中的驱动器ID和在光盘驱动器中管理的驱动器ID是否选择执行复制保护信息的读取和解密插入，是相同的。这防止了记录在光盘中的广播节目的内容被非法复制。

2. 发明申请

US20070271469A1 Copy protection method and system for digital media 有权
公开(公告)号：US20070271469A1
公开(公告)日：2007-11-22
申请号：US11878647
申请日：2007-07-26
申请人： Hyung Kim , Alexandre Stechkine , Byung Kim , Soung Um
发明人： Hyung Kim , Alexandre Stechkine , Byung Kim , Soung Um
IPC分类号： H04L9/32 , G06F12/14 , G06F17/30 , G06F7/04 , G06F11/30 , G06K9/00 , H03M1/68 , H04K1/00 , H04L9/00 , H04N7/16
CPC分类号： G06F21/6209 , G06F21/10 , G06F2221/2107 , H04L9/0822 , H04L9/0825 , H04L9/0891 , H04L9/3263 , H04L2209/605
摘要： A copy protection method and a copy protection system are disclosed. The system includes a private key verifier receiving a media certificate that includes a private key identification of a compliant playing device and searching for an actual private key corresponding to the private key identification, an intermediate key decryptor receiving an encrypted intermediate key and decrypting the intermediate key with the actual private key, a media key decryptor obtaining an original media key by decrypting the decrypted intermediate key with a media identification; and a media data decryptor receiving an encrypted media data set and decrypting the media data set with the original media key. The method and system of the present invention are applicable to all types of digital media data, and it makes no assumption of any specific media properties. The primary goal of the present invention is to significantly reduce the possibility of making any illegal copies on any nonstandard equipment and is to restrict the media data transfers only to authorized entities.

3. 发明授权

US07877813B2 Copy protection method and system for digital media 有权
标题翻译：数字媒体复制保护方法和系统
公开(公告)号：US07877813B2
公开(公告)日：2011-01-25
申请号：US11878647
申请日：2007-07-26
申请人： Hyung Sun Kim , Alexandre Stechkine , Byung Jin Kim , Soung Hyun Um
发明人： Hyung Sun Kim , Alexandre Stechkine , Byung Jin Kim , Soung Hyun Um
IPC分类号： H04N7/16
CPC分类号： G06F21/6209 , G06F21/10 , G06F2221/2107 , H04L9/0822 , H04L9/0825 , H04L9/0891 , H04L9/3263 , H04L2209/605
摘要： A copy protection method and a copy protection system are disclosed. The system includes a private key verifier receiving a media certificate that includes a private key identification of a compliant playing device and searching for an actual private key corresponding to the private key identification, an intermediate key decryptor receiving an encrypted intermediate key and decrypting the intermediate key with the actual private key, a media key decryptor obtaining an original media key by decrypting the decrypted intermediate key with a media identification; and a media data decryptor receiving an encrypted media data set and decrypting the media data set with the original media key. The method and system of the present invention are applicable to all types of digital media data, and it makes no assumption of any specific media properties. The primary goal of the present invention is to significantly reduce the possibility of making any illegal copies on any nonstandard equipment and is to restrict the media data transfers only to authorized entities.
摘要翻译：公开了一种复制保护方法和复制保护系统。该系统包括接收媒体证书的私钥验证器，该媒体证书包括兼容播放设备的私钥标识，并搜索对应于该私钥标识的实际私钥;中间密钥解密器，接收加密的中间密钥并解密该中间密钥利用实际的私钥，媒体密钥解密器通过用媒体识别解密解密的中间密钥来获得原始媒体密钥; 以及媒体数据解密器，接收加密的媒体数据集并用原始媒体密钥解密媒体数据集。本发明的方法和系统可应用于所有类型的数字媒体数据，并且不考虑任何特定的媒体属性。本发明的主要目标是显着地减少在任何非标准设备上进行任何非法复制的可能性，并且将媒体数据传输限制到授权实体。

4. 发明授权

US07254838B2 Copy protection method and system for digital media 有权
标题翻译：数字媒体复制保护方法和系统
公开(公告)号：US07254838B2
公开(公告)日：2007-08-07
申请号：US10135840
申请日：2002-05-01
申请人： Hyung Sun Kim , Alexandre Stechkine , Byung Jin Kim , Soung Hyun Um
发明人： Hyung Sun Kim , Alexandre Stechkine , Byung Jin Kim , Soung Hyun Um
IPC分类号： H04L9/32 , H04N7/167 , H04L9/00 , G06F12/14
CPC分类号： G06F21/6209 , G06F21/10 , G06F2221/2107 , H04L9/0822 , H04L9/0825 , H04L9/0891 , H04L9/3263 , H04L2209/605
摘要： A copy protection method and a copy protection system are disclosed. The system includes a private key verifier receiving a media certificate that includes a private key identification of a compliant playing device and searching for an actual private key corresponding to the private key identification, an intermediate key decryptor receiving an encrypted intermediate key and decrypting the intermediate key with the actual private key, a media key decryptor obtaining an original media key by decrypting the decrypted intermediate key with a media identification; and a media data decryptor receiving an encrypted media data set and decrypting the media data set with the original media key. The method and system of the present invention are applicable to all types of digital media data, and it makes no assumption of any specific media properties. The primary goal of the present invention is to significantly reduce the possibility of making any illegal copies on any nonstandard equipment and is to restrict the media data transfers only to authorized entities.
摘要翻译：公开了一种复制保护方法和复制保护系统。该系统包括接收媒体证书的私钥验证器，该媒体证书包括兼容播放设备的私钥标识，并搜索对应于该私钥标识的实际私钥;中间密钥解密器，接收加密的中间密钥并解密该中间密钥利用实际的私钥，媒体密钥解密器通过用媒体识别解密解密的中间密钥来获得原始媒体密钥; 以及媒体数据解密器，接收加密的媒体数据集并用原始媒体密钥解密媒体数据集。本发明的方法和系统可应用于所有类型的数字媒体数据，并且不考虑任何特定的媒体属性。本发明的主要目标是显着地减少在任何非标准设备上进行任何非法复制的可能性，并且将媒体数据传输限制到授权实体。

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