公开(公告)号：US06728379B1

公开(公告)日：2004-04-27

申请号：US09340900

申请日：1999-06-28

申请人： Yoshihito Ishibashi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano

发明人： Yoshihito Ishibashi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Tomoyuki Asano

IPC分类号： H04N7167

CPC分类号： H04L63/0428 ,  H04L63/062 ,  H04L2463/101 ,  H04N7/1675 ,  H04N21/2347 ,  H04N21/26606 ,  H04N21/4405 ,  H04N21/4623 ,  H04N21/4627 ,  H04N21/63345 ,  H04N21/8355

摘要： An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption of a content encrypted by a content encryption key. The received encrypted content decryption key is sent to a content key decryption section where it is decrypted. The decrypted content decryption key and copy control code are sent to a content key encryption section where they are encrypted by an encryption key which can be decrypted at an external information processor, namely, a session key, to send an encrypted content decryption key with a copy control code to the external information processor via a communication section.

摘要翻译： 信息处理器在其通信部分处接收通过分发加密密钥对由内容加密密钥加密的内容进行解密的内容解密密钥进行加密而生成的加密内容解密密钥。 接收到的加密内容解密密钥被发送到解密密钥的内容密​​钥解密部分。 解密的内容解密密钥和复制控制码被发送到内容密钥加密部分，在那里它们被加密密钥加密，该加密密钥可以在外部信息处理器（即会话密钥）处被解密，以发送加密的内容解密密钥 通过通信部将复制控制代码复制到外部信息处理器。

公开(公告)号：US08281362B2

公开(公告)日：2012-10-02

申请号：US11662603

申请日：2006-07-12

申请人： Minehisa Nagata ,  Senichi Onoda ,  Toshihisa Nakano ,  Masaya Yamamoto ,  Kaoru Murase ,  Masayuki Kozuka ,  Tateo Oishi ,  Yoshikazu Takashima ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Jun Yonemitsu ,  Katsumi Muramatsu

发明人： Minehisa Nagata ,  Senichi Onoda ,  Toshihisa Nakano ,  Masaya Yamamoto ,  Kaoru Murase ,  Masayuki Kozuka ,  Tateo Oishi ,  Yoshikazu Takashima ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Jun Yonemitsu ,  Katsumi Muramatsu

IPC分类号： G06F17/30

CPC分类号： G06F21/51 ,  G06F21/53

摘要： A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Therefore, it is possible that by implementing the virtual machine illegitimately, programs run thereon on will be made to operate illegitimately instead of legitimately. A program compares secret information held by the virtual machine with verification information held by the program itself. The program thereby verifies whether the virtual machine that runs the program is implemented legitimately, and is able to reject an illegitimate virtual machine.

摘要翻译： 虚拟机可以由任何人实现，因为实现所需的接口和其他信息是公开的。 因此，有可能通过非法实施虚拟机，在其上执行的程序将被非法地而非合法地运行。 程序将由虚拟机保存的秘密信息与由程序本身保存的验证信息进行比较。 该程序从而验证运行程序的虚拟机是否合法实现，并且能够拒绝非法虚拟机。

公开(公告)号：US07673153B1

公开(公告)日：2010-03-02

申请号：US09524358

申请日：2000-03-14

申请人： Tateo Oishi ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

发明人： Tateo Oishi ,  Takumi Okaue ,  Nobuyuki Kihara ,  Teppei Yokota

IPC分类号： G06F5/00

CPC分类号： G11C16/22 ,  G06F17/30067 ,  G06F21/445 ,  G06F21/602 ,  G06F21/79 ,  G06F2221/0737 ,  G06F2221/2107 ,  G06F2221/2137 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/00507 ,  G11B20/00514 ,  G11B20/00528 ,  G11B20/00753 ,  G11B20/10 ,  G11B20/12

摘要： A data processing apparatus includes an encrypting apparatus for encrypting data in units of an encryption block having a predetermined data length. A processing apparatus is also provided for performing predetermined processing on data in units of a processing block having a data length of a whole multiple of the predetermined length of the encryption block. A controller is also provided for writing the encrypted data in a storage medium so that the data positioned in the same encryption block is also positioned in the same processing block. The controller also reads the data from the storage means in units of the processing block when the data is to be read out.

摘要翻译： 数据处理装置包括用于以具有预定数据长度的加密块为单位加密数据的加密装置。 还提供一种处理装置，用于以具有整个加密块的预定长度的整数倍的数据长度的处理块为单位执行对数据的预定处理。 还提供了一种用于将加密数据写入存储介质中的控制器，使得位于相同加密块中的数据也位于相同的处理块中。 当要读取数据时，控制器还以处理块为单位从存储装置读取数据。

公开(公告)号：US20080256639A1

公开(公告)日：2008-10-16

申请号：US11661425

申请日：2006-06-27

申请人： Senichi Onoda ,  Masaya Yamamoto ,  Toshihisa Nakano ,  Kaoru Murase ,  Masayuki Kozuka ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Jun Yonemitsu ,  Katsumi Muramatsu

发明人： Senichi Onoda ,  Masaya Yamamoto ,  Toshihisa Nakano ,  Kaoru Murase ,  Masayuki Kozuka ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Jun Yonemitsu ,  Katsumi Muramatsu

IPC分类号： G06F21/22

CPC分类号： G06F21/10 ,  G06F21/53

摘要： A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Hence, if virtual machine is implemented maliciously, a program operating thereon can be made to operate maliciously instead of operating legitimately.By comparing secret information held in memory and specific to the virtual machine with verification information which a program holds itself, the program verifies that the virtual machine on which it is running has been legitimately implemented and excludes illegitimate virtual machines.

摘要翻译： 虚拟机可以由任何人实现，因为实现所需的接口和其他信息是公开的。 因此，如果虚拟机被恶意实施，则可以使其上运行的程序恶意操作，而不是合法地运行。 通过将存储器中保存的特定信息与特定于虚拟机的秘密信息与程序保存的验证信息进行比较，程序验证其正在运行的虚拟机已被合法实现，并排除非法虚拟机。

公开(公告)号：US20080154633A1

公开(公告)日：2008-06-26

申请号：US12068674

申请日：2008-02-08

申请人： Yoshihito Ishibashi ,  Tateo Oishi ,  Akihiro Muto ,  Jun Kitahara ,  Taizou Shirai

发明人： Yoshihito Ishibashi ,  Tateo Oishi ,  Akihiro Muto ,  Jun Kitahara ,  Taizou Shirai

IPC分类号： G06F17/00

CPC分类号： H04N7/1675 ,  G06F21/10 ,  G10K15/04 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/0021 ,  H04L9/0894 ,  H04L9/3247 ,  H04N5/913 ,  H04N5/9206 ,  H04N21/4334 ,  H04N21/4532 ,  H04N21/4627 ,  H04N21/8355 ,  H04N2005/91342 ,  H04N2005/91364

摘要： An information receiving apparatus receives identification information and encrypted identification information and makes a comparison between them to allow prevention of illegal utilization of contents data. Also, a data storage apparatus can record contents data encrypted by a content key and the content key so that the contents data can be reproduced on other apparatuses to improve versatility. Moreover, a management apparatus can manage the contents data in the data storage apparatus to allow other apparatuses to utilize it. And also, an information regulating apparatus can verify a signature on available data to prevent illegal utilization of the contents data. Furthermore, the data storage apparatus can store the content key, its handling policies, the contents data encrypted by the content key and its license conditions information so as to safely provide the contents data. In addition, an information recording apparatus can select favorite contents data and store it on the data storage apparatus. Furthermore, the information receiving apparatus can prevent utilization of provision-prohibited contents data by a provision prohibition list.

摘要翻译： 信息接收装置接收识别信息和加密的识别信息并进行比较，以防止内容数据的非法利用。 此外，数据存储装置可以记录通过内容密钥和内容密钥加密的内容数据，使得可以在其他装置上再现内容数据，以提高通用性。 此外，管理装置可以管理数据存储装置中的内容数据，以允许其他装置利用它。 此外，信息调节装置也可以对可用数据的签名进行验证，以防止内容数据的非法利用。 此外，数据存储装置可以存储内容密钥，其处理规则，通过内容密钥加密的内容数据及其许可条件信息，以便安全地提供内容数据。 此外，信息记录装置可以选择喜好的内容数据并将其存储在数据存储装置上。 此外，信息接收装置可以通过提供禁止列表来防止禁止提供的内容数据的使用。

公开(公告)号：US07283633B2

公开(公告)日：2007-10-16

申请号：US10049434

申请日：2001-06-21

申请人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Ryuji Ishiguro ,  Atsushi Mitsuzawa ,  Tateo Oishi

发明人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Ryuji Ishiguro ,  Atsushi Mitsuzawa ,  Tateo Oishi

IPC分类号： H04L9/00

CPC分类号： H04L9/0891 ,  G06F21/10 ,  G06F2221/2107 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00507 ,  G11B20/00528 ,  H04L9/0836 ,  H04L2209/60

摘要： An information reproducing method and an information reproducing device in which the key renewal block (KRB) of the latest version is selectively used to encrypt the content to store the encrypted contents in a recording medium. A plural number of KRBs of different generations and versions are stored in a recording medium. If the latest KRB is detected, it is stored in a memory unit within the recording and/or reproducing device. A plural number of KRBs having plural different generations or versions are stored on the recording medium. With the present method and device, in storing the content in the recording medium, the latest usable one of the KRB in the memory unit of the reproducing device and plural KRBs on the recording medium is detected to acquire an encrypting key, such as a media key, to execute the content encryption. In this manner, the encrypted content based on a KRB of a newer version can at all times be stored on the recording medium.

摘要翻译： 一种信息再现方法和信息再现装置，其中选择性地使用最新版本的密钥更新块（KRB）来加密内容以将加密的内容存储在记录介质中。 将不同代和版本的多个KRB存储在记录介质中。 如果检测到最新的KRB，则将其存储在记录和/或再现装置内的存储单元中。 具有多个不同代数或版本的多个KRB被存储在记录介质上。 利用本方法和装置，在将内容存储在记录介质中时，检测再现装置的存储单元中的KRB中的最新可用的一个和记录介质上的多个KRB，以获取诸如媒体之类的加密密钥 密钥，执行内容加密。 以这种方式，可以始终将基于较新版本的KRB的加密内容存储在记录介质上。

公开(公告)号：US20070098177A1

公开(公告)日：2007-05-03

申请号：US11639711

申请日：2006-12-15

申请人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

发明人： Tomoyuki Asano ,  Yoshitomo Osawa ,  Tateo Oishi ,  Ryuji Ishiguro ,  Ryuta Taki

IPC分类号： H04L9/00

CPC分类号： H04L63/0428 ,  G06F21/10 ,  G06F2221/0753 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00855 ,  H04L9/0836 ,  H04L9/0891 ,  H04L63/062 ,  H04L63/0869 ,  H04L63/104 ,  H04L2209/60

摘要： An information processing system and method are disclosed in which information processing is performed in a highly efficient manner using an enabling key block (EKB) on the basis of a tree structure including category subtrees. A key tree is produced so as to include a plurality of subtrees that are grouped in accordance with categories and managed by category entities. An EKB is produced so as to include data produced by selecting a path in the key tree and encrypting an upper-level key in the selected path using a lower-level key in the selected path. The resultant EKB is provided to a device. If a change occurs in state of a category tree capable of processing an EKB identified in the EKB type definition list, a notification of the change in state is sent to an entity that uses the EKB thereby making it possible for an EKB requester to perform processing in accordance with a newest EKB.

公开(公告)号：US20070030974A1

公开(公告)日：2007-02-08

申请号：US11454196

申请日：2006-06-16

申请人： Yoshihito Ishibashi ,  Tateo Oishi ,  Shinako Matsuyama ,  Tomoyuki Asano ,  Akihiro Muto ,  Jun Kitahara

发明人： Yoshihito Ishibashi ,  Tateo Oishi ,  Shinako Matsuyama ,  Tomoyuki Asano ,  Akihiro Muto ,  Jun Kitahara

IPC分类号： H04L9/00

CPC分类号： G06Q30/06 ,  G06F21/10 ,  G06F2221/2107 ,  G10K15/02 ,  H04L9/0891 ,  H04L9/0894 ,  H04L9/3247 ,  H04L9/3263 ,  H04L63/045 ,  H04L63/102 ,  H04L63/12 ,  H04L2209/60

摘要： Content data encrypted with a content key, the content key encrypted with an individual key specific to an information sending device, and the individual key encrypted with a distribution key that is updated in a predetermined cycle, and supplied are sent to an information receiving device, and the information receiving device decrypts the individual key with the distribution key, decrypts the content key with the individual key, and decrypts the content data with the content key. Thus, the information sending device does not have the distribution key, and accordingly piracy of content data can be prevented with a simple configuration. Also, the information receiving device sends the content key and a playback command to other apparatuses. Thus, other apparatuses can play back contents using the playback command and the content key. Furthermore, the information sending device decrypts the content key with the distribution key before being updated, and stores the same. Thus, contents purchased by an advance order can be actually purchased regardless of expiration dates of the distribution key. Furthermore, usage right is passed from a first information receiving device to a second information receiving device different in registration information at the tome of using contents. Thus, contents can be used among information receiving devices different from each other in registration information.

摘要翻译： 使用内容密钥加密的内容数据，用信息发送装置专用的专用密钥加密的内容密钥和以预定周期更新的分发密钥加密的单独密钥被提供给信息接收装置， 并且信息接收装置用分发密钥解密单个密钥，用个别密钥解密内容密钥，并用内容密钥解密内容数据。 因此，信息发送装置不具有分配密钥，因此可以通过简单的配置来防止内容数据的盗版。 此外，信息接收装置向其他装置发送内容密钥和重放命令。 因此，其他装置可以使用播放命令和内容密钥来播放内容。 此外，信息发送装置在被更新之前用分发密钥对内容密钥进行解密，并且存储该密钥。 因此，无论分配密钥的到期日期如何，都可以实际购买由提前订单购买的内容。 此外，在使用内容的使用方面，使用权从第一信息接收装置传递到注册信息不同的第二信息接收装置。 因此，可以在注册信息中彼此不同的信息接收装置中使用内容。

公开(公告)号：US08474049B2

公开(公告)日：2013-06-25

申请号：US11661425

申请日：2006-06-27

申请人： Senichi Onoda ,  Masaya Yamamoto ,  Toshihisa Nakano ,  Kaoru Murase ,  Masayuki Kozuka ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Jun Yonemitsu ,  Katsumi Muramatsu

发明人： Senichi Onoda ,  Masaya Yamamoto ,  Toshihisa Nakano ,  Kaoru Murase ,  Masayuki Kozuka ,  Takashi Yamanishi ,  Yoshitomo Osawa ,  Tateo Oishi ,  Jun Yonemitsu ,  Katsumi Muramatsu

IPC分类号： H04L29/06

CPC分类号： G06F21/10 ,  G06F21/53

摘要： A virtual machine can be implemented by anyone because the interface and other information necessary for implementation are publicly available. Hence, if virtual machine is implemented maliciously, a program operating thereon can be made to operate maliciously instead of operating legitimately. By comparing secret information held in memory and specific to the virtual machine with verification information which a program holds itself, the program verifies that the virtual machine on which it is running has been legitimately implemented and excludes illegitimate virtual machines.

摘要翻译： 虚拟机可以由任何人实现，因为实现所需的接口和其他信息是公开的。 因此，如果虚拟机被恶意实施，则可以使其上运行的程序恶意操作，而不是合法地运行。 通过将存储器中保存的特定信息与特定于虚拟机的秘密信息与程序保存的验证信息进行比较，程序验证其正在运行的虚拟机已被合法实现，并排除非法虚拟机。

公开(公告)号：US08036388B2

公开(公告)日：2011-10-11

申请号：US11454196

申请日：2006-06-16

申请人： Yoshihito Ishibashi ,  Tateo Oishi ,  Shinako Matsuyama ,  Tomoyuki Asano ,  Akihiro Muto ,  Jun Kitahara

发明人： Yoshihito Ishibashi ,  Tateo Oishi ,  Shinako Matsuyama ,  Tomoyuki Asano ,  Akihiro Muto ,  Jun Kitahara

IPC分类号： H04L9/00

CPC分类号： G06Q30/06 ,  G06F21/10 ,  G06F2221/2107 ,  G10K15/02 ,  H04L9/0891 ,  H04L9/0894 ,  H04L9/3247 ,  H04L9/3263 ,  H04L63/045 ,  H04L63/102 ,  H04L63/12 ,  H04L2209/60

摘要： Content data encrypted with a content key, the content key encrypted with an individual key specific to an information sending device, and the individual key encrypted with a distribution key that is updated in a predetermined cycle, and supplied are sent to an information receiving device, and the information receiving device decrypts the individual key with the distribution key, decrypts the content key with the individual key, and decrypts the content data with the content key. Thus, the information sending device does not have the distribution key, and accordingly piracy of content data can be prevented with a simple configuration. Also, the information receiving device sends the content key and a playback command to other apparatuses. Thus, other apparatuses can play back contents using the playback command and the content key. Furthermore, the information sending device decrypts the content key with the distribution key before being updated, and stores the same. Thus, contents purchased by an advance order can be actually purchased regardless of expiration dates of the distribution key. Furthermore, usage right is passed from a first information receiving device to a second information receiving device different in registration information at the tome of using contents. Thus, contents can be used among information receiving devices different from each other in registration information.

摘要翻译： 使用内容密钥加密的内容数据，用信息发送装置专用的专用密钥加密的内容密钥和以预定周期更新的分发密钥加密的单独密钥被提供给信息接收装置， 并且信息接收装置用分发密钥解密单个密钥，用个别密钥解密内容密钥，并用内容密钥解密内容数据。 因此，信息发送装置不具有分配密钥，因此可以通过简单的配置来防止内容数据的盗版。 此外，信息接收装置向其他装置发送内容密钥和重放命令。 因此，其他装置可以使用播放命令和内容密钥来播放内容。 此外，信息发送装置在被更新之前用分发密钥对内容密钥进行解密，并且存储该密钥。 因此，无论分配密钥的到期日期如何，都可以实际购买由提前订单购买的内容。 此外，在使用内容的使用方面，使用权从第一信息接收装置传递到注册信息不同的第二信息接收装置。 因此，可以在注册信息中彼此不同的信息接收装置中使用内容。