公开(公告)号：US20110231658A1

公开(公告)日：2011-09-22

申请号：US13066314

申请日：2011-04-12

Applicant: Mark Nair

Inventor： Mark Nair

IPC: H04L29/06 ,  G06F15/16 ,  G06F11/30

CPC classification number: G06F21/10 ,  G06Q20/1235 ,  G06Q30/06 ,  G07F17/30 ,  G07F17/305 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00231 ,  G11B20/00536 ,  G11B20/0071 ,  G11B20/00855 ,  G11C7/16 ,  H04N5/76 ,  H04N5/765 ,  H04N5/77 ,  H04N5/775 ,  H04N5/781 ,  H04N5/9261 ,  H04N21/454 ,  H04N2005/91364

Abstract: A system, business methodology and apparatus for facilitating controlled dissemination of digital works is disclosed. An audio and video organizer, entertainment, and communication unit that plays back audio and video media content received from a central storage server. The unit relies on a smartcard, which has a personalized key that unlocks encrypted content. Using the unit, a user can purchase music or other types of media using a appropriate ordering method. The central storage server then transmits a double-encrypted, compressed audio file to the unit, where it is decrypted based on the smartcard key, and available for listening.

公开(公告)号：US08010790B2

公开(公告)日：2011-08-30

申请号：US12207684

申请日：2008-09-10

Applicant: Lane W. Lee ,  Randal C. Hines ,  Mark J. Gurkowski ,  David L. Blankenbeckler

Inventor： Lane W. Lee ,  Randal C. Hines ,  Mark J. Gurkowski ,  David L. Blankenbeckler

IPC: H04L9/00

CPC classification number: G06F21/80 ,  G06F21/10 ,  G06F21/6218 ,  G06F2221/2115 ,  G06F2221/2129 ,  G11B20/00086 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00253 ,  G11B20/00492 ,  G11B20/00536 ,  G11B20/00855 ,  H04L9/0825 ,  H04L2209/603

Abstract: A block-level storage device is provided that implements a digital rights management (DRM) system. In response to receiving a public key from an associated host system, the storage device challenges the host system to prove it has the corresponding private key to establish trust. This trust is established by encrypting a secure session key using the public key. The host system uses its private key to recover the secure session key. The storage device may store content that has been encrypted according to a content key. In addition, the storage device may encrypt the content key using the secure session key.

Abstract translation: 提供了一种实现数字版权管理（DRM）系统的块级存储设备。 响应于从相关联的主机系统接收到公共密钥，存储设备挑战主机系统以证明其具有相应的私钥以建立信任。 该信任是通过使用公钥加密安全会话密钥来建立的。 主机系统使用其私钥来恢复安全会话密钥。 存储装置可以存储根据内容密钥被加密的内容。 此外，存储装置可以使用安全会话密钥对内容密钥进行加密。

公开(公告)号：US07653198B2

公开(公告)日：2010-01-26

申请号：US10089771

申请日：2001-08-02

Applicant: Yoichiro Sako ,  Junichi Kudo

Inventor： Yoichiro Sako ,  Junichi Kudo

IPC: H04N7/167

CPC classification number: G11B20/0021 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/00181 ,  G11B20/00528 ,  G11B20/00536 ,  G11B20/00557 ,  G11B20/00826 ,  G11B20/00884 ,  G11B20/10

Abstract: This invention is directed to a recording medium on which contents data of movie, etc. is recorded. At the position where reproduction is carried out prior to first data consisting of contents data in reproducing the first data, there is recorded second data like advertisement data in which contents concealment data for concealing contents data is buried. In reproduction of the first data recorded on this recording medium, contents concealment data is extracted from the second data, and cipher implemented to the first data which has been read out from the recording medium is decoded by using the extracted contents concealment data. Thus, the first data is reproduced subsequently to the second data.

Abstract translation: 本发明涉及一种记录电影内容数据等的记录介质。 在再现第一数据的内容数据组成的第一数据之前执行再现的位置，记录有诸如广告数据的第二数据，其中隐藏用于隐藏内容数据的内容隐藏数据。 在记录在该记录介质上的第一数据的再现中，从第二数据中提取内容隐藏数据，并且通过使用所提取的内容隐藏数据对从已经从记录介质读出的第一数据实现的加密进行解码。 因此，第一数据在第二数据之后再现。

公开(公告)号：US07647646B2

公开(公告)日：2010-01-12

申请号：US10414002

申请日：2003-04-16

Applicant: Toshihisa Nakano ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Hideshi Ishihara

Inventor： Toshihisa Nakano ,  Motoji Ohmori ,  Makoto Tatebayashi ,  Hideshi Ishihara

IPC: H04L9/14

CPC classification number: H04L63/0428 ,  G06F21/10 ,  G06F21/78 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00188 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00253 ,  G11B20/00514 ,  G11B20/00536 ,  H04L63/0442 ,  H04L63/0485 ,  H04L63/12

Abstract: In an information input/output system, a user device inputs and outputs information to and from external sources including a key management device. The system includes the key management device that securely outputs invalid-device information specifying an invalid device unit that has been made invalid for use, and the user device that includes an input/output unit and a host unit. Via the input/output unit, input and output of information is enabled between the host unit and the external sources. The host unit securely receives, via the input/output unit, the invalid-device information outputted by the key management device and judges whether or not the input/output unit is an invalid device unit by referring to the received invalid-device information. When judging, that the input/output unit is an invalid device, the host unit thereafter prohibits input and output via the input/output unit. Due to this construction, the host unit can correctly judge whether or not the input/output unit is an invalid device unit.

Abstract translation: 在信息输入/输出系统中，用户设备向外部来源（包括密钥管理设备）输入和输出信息。 系统包括密钥管理装置，其安全地输出指定使无效的无效装置单元的无效装置信息和包括输入/​​输出单元和主机单元的用户装置。 通过输入/输出单元，可以在主机单元和外部源之间启用信息的输入和输出。 主机通过输入/输出单元安全地接收由密钥管理装置输出的无效装置信息，并通过参考接收到的无效装置信息判断输入/输出装置是否是无效的装置单元。 当判断输入/输出单元是无效装置时，主机单元此后禁止通过输入/输出单元的输入和输出。 由于这种结构，主机单元可以正确地判断输入/输出单元是否是无效的设备单元。

公开(公告)号：US20090010437A1

公开(公告)日：2009-01-08

申请号：US11815744

申请日：2006-02-16

Applicant: Yoshikazu Takashima ,  Tateo Oishi ,  Katsumi Muramatsu ,  Kenjiro Ueda ,  Motoki Kato

Inventor： Yoshikazu Takashima ,  Tateo Oishi ,  Katsumi Muramatsu ,  Kenjiro Ueda ,  Motoki Kato

IPC: H04L9/06

CPC classification number: G11B27/105 ,  G06F21/10 ,  G06F2221/0704 ,  G06F2221/0737 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00362 ,  G11B20/00507 ,  G11B20/00536 ,  G11B20/1217 ,  G11B27/329 ,  G11B2020/10537 ,  G11B2020/10916 ,  G11B2020/10944 ,  G11B2220/235 ,  H04L9/0836 ,  H04L2209/60

Abstract: A data placement configuration which ensures seamless playback of contents having segment portions including multiple different variations of encrypted data is provided. With regard to contents having segment portions configured of multiple different variations of encrypted data to which individual segment keys have been applied, and non-segment portions serving as encrypted data to which a unit key has been applied, the placement of segment data and non-segment portion configuration data is determined such that the maximum jump distance executed at the time of playback processing is equal to or less than a maximum jump distance set beforehand. Data placement has been determined based on seek time, ECC block processing time, sequence key usage time which is key switchover time, and so forth.

Abstract translation: 提供一种数据放置配置，其确保具有包括加密数据的多个不同变化的段部分的内容的无缝重放。 对于具有由已经应用了各个分段密钥的加密数据的多个不同变体构成的分段部分的内容以及用作已经应用单位密钥的加密数据的非分段部分， 确定分段部分配置数据，使得在重放处理时执行的最大跳跃距离等于或小于预先设定的最大跳跃距离。 已经根据查找时间，ECC块处理时间，关键切换时间的顺序密钥使用时间等来确定数据布局。

公开(公告)号：US20070223705A1

公开(公告)日：2007-09-27

申请号：US11571064

申请日：2005-06-02

Applicant: Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

Inventor： Akihiro Kasahara ,  Akira Miura ,  Hiroshi Suu

IPC: H04L9/08

CPC classification number: G07F7/1008 ,  G06F21/10 ,  G06F21/602 ,  G06Q20/341 ,  G06Q20/357 ,  G06Q20/35765 ,  G06Q20/40975 ,  G07F7/1016 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00253 ,  G11B20/00413 ,  G11B20/00492 ,  G11B20/00536 ,  G11B20/0071 ,  H04L9/083 ,  H04L9/0894 ,  H04L2209/60

Abstract: User keys make sensitive management of users which are different per type of services. A SD card SDq may store plural kinds of service user keys Kus which are different per type of services. The service user key Kus is encrypted by a medium unique key Kmu and is stored in a protection area 3. The protection area 3 stores a master user key Kumst encrypted by the medium unique key Kmu, as well as the service user keys Kus. The master user key Kumst is a key used for encrypting the service user key Kus when obtaining a service user key Kus.

Abstract translation: 用户密钥对每种类型的服务不同的用户进行敏感管理。 SD卡SDq可以存储不同类型的服务的多种服务用户密钥Kus。 服务用户密钥Kus通过中等的唯一密钥Kmu进行加密，并存储在保护区域3中。 保护区域3存储通过媒体唯一密钥Kmu加密的主用户密钥Kumst以及服务用户密钥Kus。 主用户密钥Kumst是用于在获取服务用户密钥Kus时加密服务用户密钥Kus的密钥。

公开(公告)号：US20070211597A1

公开(公告)日：2007-09-13

申请号：US11748512

申请日：2007-05-15

Applicant: Seiji Kobayashi ,  Toshihiro Fujiki

Inventor： Seiji Kobayashi ,  Toshihiro Fujiki

IPC: G11B7/00

CPC classification number: G11B20/00086 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/24082 ,  G11B7/24085 ,  G11B7/261 ,  G11B7/263 ,  G11B7/268 ,  G11B19/122 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00304 ,  G11B20/00311 ,  G11B20/00376 ,  G11B20/00405 ,  G11B20/00536 ,  G11B20/00586 ,  G11B20/00594 ,  G11B20/00601 ,  G11B20/00688 ,  G11B20/00695 ,  G11B20/00876 ,  G11B27/24 ,  G11B2220/2545

Abstract: Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit for encrypting entered digital data according to a plurality of key information; an optical disk substrate manufacturing unit for manufacturing an optical disk substrate on which the encrypted digital data and key information are recorded in the form of physical form changes; a reflection film forming unit for forming a reflection film on the optical disk substrate; and a key information recording unit for recording key information on the optical disk substrate on which the reflection film is formed. The reflection factor of the optical disk is changed locally, thereby giving a jitter to the position information of each pit edge, and desired data is recorded additionally according to this jitter. Pits, etc. are disposed so as to be deviated from the track center towards the inner/outer region of the optical disk, thereby recording such sub-data as key information KY, etc.

Abstract translation: 这里描述了一种用于从光盘读取记录的数字数据的光盘制造装置，包括：加密单元，用于根据多个密钥信息加密输入的数字数据; 用于制造光盘基板的光盘基板制造单元，其上以物理形式变化的形式记录加密的数字数据和密钥信息; 反射膜形成单元，用于在所述光盘基板上形成反射膜; 以及用于在其上形成有反射膜的光盘基板上记录键信息的键信息记录单元。 光盘的反射因子在本地变化，从而给每个凹坑边缘的位置信息造成抖动，并根据该抖动另外记录所需的数据。 凹坑等被设置成从轨道中心朝向光盘的内/外区域偏离，从而记录关键信息KY等的子数据。

公开(公告)号：US20060288426A1

公开(公告)日：2006-12-21

申请号：US11480690

申请日：2006-07-03

Applicant: Makoto Saito

Inventor： Makoto Saito

IPC: H04N7/16

CPC classification number: H04N21/4334 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00478 ,  G11B20/00536 ,  H04N5/913 ,  H04N21/4405 ,  H04N21/4408 ,  H04N2005/91364

Abstract: A method and an apparatus ensuring protection of digital data are provided. In addition to re-encrypting the data using an unchangeable key, the data is double re-encrypted using a changeable key. The changeable key is used first and the unchangeable key is then used, or in another case, the unchangeable key is used first, and the changeable key is then used. In the aspect of embodiments, there is a case adopting a software, a case adopting a hardware, or a case adopting the software and the hardware in combination. The hardware using the unchangeable key developed for digital video is available. In adopting the software, encryption/decryption is performed in a region below the kernel which cannot be handled by the user to ensure the security for the program and for the key used. More concretely, encryption/decryption is performed with RTOS using a HAL and a device driver, i.e., a filter driver, a disk driver and a network driver, in an I/O manager. Either one of two filter drivers, with a file system driver between them, may be used. Further, both filter drivers may be used.

Abstract translation: 提供确保数字数据保护的方法和装置。 除了使用不可更改的密钥重新加密数据之外，使用可更改密钥对数据进行双重重新加密。 首先使用可变键，然后使用不可更改的键，或者在另一种情况下，首先使用不可更改的键，然后使用可更改键。 在实施例的方面，存在采用软件，采用硬件的情况或采用软件和硬件的情况的组合的情况。 使用为数字视频开发的不可更改密钥的硬件可用。 在采用该软件时，在内核下方的区域内执行加密/解密，用户无法处理该区域，以确保程序的安全性以及使用的密钥。 更具体地，使用HAL和设备驱动程序（即，I / O管理器中的过滤器驱动程序，磁盘驱动器和网络驱动程序），使用RTOS执行加密/解密。 可以使用两个过滤器驱动程序中的一个，其间具有文件系统驱动程序。 此外，可以使用两个滤波器驱动器。

公开(公告)号：US07149162B2

公开(公告)日：2006-12-12

申请号：US11471594

申请日：2006-06-21

Applicant: Seiji Kobayashi ,  Toshihiro Fujiki

Inventor： Seiji Kobayashi ,  Toshihiro Fujiki

IPC: G11B15/52

CPC classification number: G11B20/00086 ,  G11B7/0053 ,  G11B7/00736 ,  G11B7/0079 ,  G11B7/24082 ,  G11B7/24085 ,  G11B7/261 ,  G11B7/263 ,  G11B7/268 ,  G11B19/122 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00304 ,  G11B20/00311 ,  G11B20/00376 ,  G11B20/00405 ,  G11B20/00536 ,  G11B20/00586 ,  G11B20/00594 ,  G11B20/00601 ,  G11B20/00688 ,  G11B20/00695 ,  G11B20/00876 ,  G11B27/24 ,  G11B2220/2545

Abstract: Described herewith is an optical disk manufacturing apparatus for reading recorded digital data from an optical disk, comprising an encryption unit (22, 23) for encrypting entered digital data according to a plurality of key information; an optical disk substrate manufacturing unit 2 for manufacturing an optical disk substrate 4 on which the encrypted digital data and key information are recorded in the form of physical form changes; a reflection film forming unit 41 for forming a reflection film on the optical disk substrate 4; and a key information recording unit 7 for recording key information on the optical disk substrate on which the reflection film is formed. The reflection factor of the optical disk is changed locally, thereby giving a jitter to the position information of each pit edge, and desired data is recorded additionally according to this jitter. Pits, etc. are disposed so as to be deviated from the track center towards the inner/outer region of the optical disk 2, thereby recording such sub-data as key information KY, etc.

公开(公告)号：US07111169B2

公开(公告)日：2006-09-19

申请号：US09960786

申请日：2001-09-22

Applicant: Michael S. Ripley ,  Brendan S. Traw

Inventor： Michael S. Ripley ,  Brendan S. Traw

IPC: H04L9/00 ,  H04N7/167

CPC classification number: H04N21/8358 ,  G11B20/00086 ,  G11B20/00115 ,  G11B20/0021 ,  G11B20/00362 ,  G11B20/00449 ,  G11B20/00536 ,  G11B20/00543 ,  G11B20/00855 ,  G11B20/00884 ,  H04N5/765 ,  H04N5/913 ,  H04N7/1675 ,  H04N21/4135 ,  H04N21/4325 ,  H04N21/4367 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4627 ,  H04N21/8355

Abstract: A method and apparatus to protect unencrypted content or data in a storage media from prohibited use or reproduction by encrypting unprotected content before it is transmitted to another device or software application. A compliant device or software application is capable of decrypting the content, detecting any watermark within the content, and accessing or processing the content according to the restrictions associated with the detected watermark. Non-compliant devices or software are prevented from accessing or processing the content since they are unable to decrypt it.