公开(公告)号：HU0202148A2

公开(公告)日：2002-10-28

申请号：HU0202148

申请日：2001-04-05

Applicant: SONY CORP

Inventor： ASANO TOMOYUKI ,  ISHIGURO RYUJI ,  MITSUZAWA ATSUSHI ,  OISHI TATEO ,  OSAWA YOSHITOMO

IPC: G06F12/14 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/08 ,  H04N5/91 ,  H04L9/00

Abstract: In a tree-structural key distribution system, renewed data of a master key and medium key are sent along with a key renewal block (KRB). KRB is such that each of devices included as leaves of a tree structure has a leaf key and restricted node key. A specific KRB can be generated for a group identified by a specific node and distributed to the group to restrict a device for which the key can be renewed. Any device not belonging to the group cannot decrypt the key, whereby the security of key distribution can be assured. Especially in a system using a generation-managed master key, a master key renewed with KRB can be distributed.

公开(公告)号：NO20015908L

公开(公告)日：2002-02-05

申请号：NO20015908

申请日：2001-12-03

Applicant: SONY CORP

Inventor： ISHIGURO RYUJI ,  OSAWA YOSHITOMO ,  OISHI TATEO ,  ASANO TOMOYUKI ,  MITSUZAWA ATSUSHI

IPC: G06F12/14 ,  G06F1/00 ,  G06F21/10 ,  G06F21/62 ,  G11B20/00 ,  H04L9/08 ,  H04L

Abstract: A content key, an authentication key, and a program data etc. are transmitted with an enabling key block (EKB) in an encrypted key constitution of a tree structure. The EKB has a constitution in which a device as a leaf of the tree holds a leaf key and a limited node key, and a specific enabling key block (EKB) is generated and distributed to a group specified by a specific node to limit devices that can be renewed. As the devices that do not belong to the group cannot perform decryption, the security for distributing keys etc. can be secured. Thus, distribution of various kinds of keys or data is executed in an encryption key constitution of a tree structure to realize an information processing system and method enabling to distribute data efficiently and safely.

公开(公告)号：AU7458301A

公开(公告)日：2002-01-02

申请号：AU7458301

申请日：2001-06-21

Applicant: SONY CORP

Inventor： ASANO TOMOYUKI ,  OSAWA YOSHITOMO ,  ISHIGURO RYUJI ,  MITSUZAWA ATSUSHI ,  OISHI TATEO

IPC: G06F21/10 ,  G11B20/00 ,  H04L9/08 ,  H04L29/06 ,  H04L9/00 ,  G11B20/10 ,  G10K15/02 ,  G06F12/14

Abstract: An information recording/reproducing device for executing a key distribution by a KRB distribution involving a tree-structure key distribution configuration. The device transmits, by using a key-structure key distribution configuration, a key such as a master key, a media key or a content key along with a key update block (KRB). The recording/reproducing device, after calculating and acquiring the key of a certain recording medium based on a reception KRB, encrypts the acquired key using an encryption key specific to the device, for example, a leaf key, and stores it in a recording medium or memory of the device. Therefore, the recording/reproducing device can calculate a key by merely decoding the encrypting key one time when next using the recording medium or contents, and can reduce computational complexity such as KRB decoding required when the device accesses a recording medium or uses contents, thereby making efficient processing on the KRB receiving side.

公开(公告)号：NO20015908D0

公开(公告)日：2001-12-03

申请号：NO20015908

申请日：2001-12-03

Applicant: SONY CORP

Inventor： ISHIGURO RYUJI ,  OSAWA YOSHITOMO ,  OISHI TATEO ,  ASANO TOMOYUKI ,  MITSUZAWA ATSUSHI

IPC: G06F12/14 ,  G06F1/00 ,  G06F21/10 ,  G06F21/62 ,  G11B20/00 ,  H04L9/08 ,  H04L

Abstract: A content key, an authentication key, and a program data etc. are transmitted with an enabling key block (EKB) in an encrypted key constitution of a tree structure. The EKB has a constitution in which a device as a leaf of the tree holds a leaf key and a limited node key, and a specific enabling key block (EKB) is generated and distributed to a group specified by a specific node to limit devices that can be renewed. As the devices that do not belong to the group cannot perform decryption, the security for distributing keys etc. can be secured. Thus, distribution of various kinds of keys or data is executed in an encryption key constitution of a tree structure to realize an information processing system and method enabling to distribute data efficiently and safely.

公开(公告)号：AU4470901A

公开(公告)日：2001-10-23

申请号：AU4470901

申请日：2001-04-02

Applicant: SONY CORP

Inventor： ISHIGURO RYUJI ,  OSAWA YOSHITOMO ,  OISHI TATEO ,  ASANO TOMOYUKI ,  MITSUZAWA ATSUSHI

IPC: G06F12/14 ,  G06F1/00 ,  G06F21/10 ,  G06F21/62 ,  G11B20/00 ,  H04L9/08 ,  H04L9/00 ,  G06F17/60 ,  G11B20/10 ,  G11B20/12

Abstract: A content key, an authentication key, and a program data etc. are transmitted with an enabling key block (EKB) in an encrypted key constitution of a tree structure. The EKB has a constitution in which a device as a leaf of the tree holds a leaf key and a limited node key, and a specific enabling key block (EKB) is generated and distributed to a group specified by a specific node to limit devices that can be renewed. As the devices that do not belong to the group cannot perform decryption, the security for distributing keys etc. can be secured. Thus, distribution of various kinds of keys or data is executed in an encryption key constitution of a tree structure to realize an information processing system and method enabling to distribute data efficiently and safely.

公开(公告)号：CA2372545A1

公开(公告)日：2001-10-18

申请号：CA2372545

申请日：2001-04-05

Applicant: SONY CORP

Inventor： OSAWA YOSHITOMO ,  ASANO TOMOYUKI ,  OISHI TATEO ,  MITSUZAWA ATSUSHI ,  ISHIGURO RYUJI

IPC: G06F12/14 ,  G06F21/24 ,  G11B20/00 ,  G11B20/10 ,  H04L9/08 ,  H04N5/91 ,  H04L9/00 ,  G11B20/12

Abstract: Update of a master key and a media key is transmitted along with a key updat e block (KRB) through a key distribution system of tree structure. The KRB has a structure where devices constituting leaves of the tree have a leaf key and a limited node key and creates and distributes a specific key update block (KR B) to a group specified by a specific node, thereby limiting updateable devices . Any device not belonging to the group cannot decode the data, thus ensuring the safety of key distribution. Especially, in a system using a master key under generation control, an update master key is distributed by a KRB.

公开(公告)号：JP2013171443A

公开(公告)日：2013-09-02

申请号：JP2012035070

申请日：2012-02-21

Applicant: Sony Corp ,  ソニー株式会社

Inventor： TSUZUKI TAKAYUKI ,  MITSUZAWA ATSUSHI ,  SAEKI KEIKO ,  TANAKA YOSHIZUMI ,  KASHIMA KOZO

IPC: G06F21/60

Abstract: PROBLEM TO BE SOLVED: To provide an information processing apparatus, an information processing method, a program, and an information processing system which can verify a user who illegally uses an account of membership service.SOLUTION: An information processing apparatus includes an account information acquisition unit for acquiring account information registered in membership service, a movement history information acquisition unit for acquiring movement history information associated with the account information, a reference information acquisition unit for acquiring reference information for calculating a confidence level of the account information, and a confidence level calculation unit for calculating the confidence level of the account information on the basis of the movement history information and the reference information.

Abstract translation: 要解决的问题：提供可以验证非法使用会员服务账户的用户的信息处理装置，信息处理方法，程序和信息处理系统。解决方案：信息处理装置包括帐户信息获取 用于获取登记在会员服务中的帐户信息的单元，用于获取与账户信息相关联的移动历史信息的移动历史信息获取单元，用于获取用于计算帐户信息的置信水平的参考信息的参考信息获取单元， 计算单元，用于基于移动历史信息和参考信息来计算帐户信息的置信水平。

公开(公告)号：JP2006108984A

公开(公告)日：2006-04-20

申请号：JP2004291393

申请日：2004-10-04

Applicant: Sony Corp ,  ソニー株式会社

Inventor： NAGAMATSU TATSUO ,  SHIMIZU KUNITOSHI ,  OKUDA HISAO ,  TERANISHI TSUTOMU ,  KAWAGUCHI HIROSHI ,  MITSUZAWA ATSUSHI

IPC: H04N5/91 ,  G11B27/034 ,  G11B27/10 ,  H04N5/92

CPC classification number: G11B27/28 ,  G11B27/105 ,  G11B2220/20 ,  Y10S358/908

Abstract: PROBLEM TO BE SOLVED: To enable correctly segmenting commercials from the entire content in which programs and commercials coexist.
SOLUTION: A checksum obtained from an image in a predetermined range in a commercial, and the start position and end position of the commercial using the position of the range as a reference, are described in a pattern file prepared for each commercial. Checksums are sequentially obtained from images in a predetermined range. When a range in which a checksum coinciding with the checksum described in the pattern file is detected, the start position and end position of a commercial are specified on the basis of the start position and end position described in the pattern file, using the position of the detected range as a reference. This apparatus is applicable to a personal computer or the like for processing television programs.
COPYRIGHT: (C)2006,JPO&NCIPI

Abstract translation: 要解决的问题：使程序和广告共享的整个内容能够正确地分割广告。 解决方案：以商业广告的预定范围内的图像获得的校验和以及范围的位置作为参考的商业广告的开始位置和结束位置在为每个商业广告准备的图案文件中被描述。 从预定范围的图像顺序获得校验和。 当检测到与模式文件中描述的校验和相符的校验和的范围时，基于在模式文件中描述的开始位置和结束位置，使用位置来指定广告的开始位置和结束位置 检测范围作为参考。 该装置适用于处理电视节目的个人计算机等。 版权所有（C）2006，JPO＆NCIPI

公开(公告)号：JP2002009753A

公开(公告)日：2002-01-11

申请号：JP2000186174

申请日：2000-06-21

Applicant: SONY CORP

Inventor： ASANO TOMOYUKI ,  OSAWA YOSHITOMO ,  ISHIGURO RYUJI ,  MITSUZAWA ATSUSHI ,  OISHI TAKEO

IPC: G06F12/14 ,  G06F21/24 ,  G09C1/00 ,  G11B20/10 ,  H04L9/08

Abstract: PROBLEM TO BE SOLVED: To provide an information recording and reproducing device and its method that selectively use a key revision block(KRB) of the newest version so as to encrypt contents and store them to a recording medium. SOLUTION: The method is configured to store KRBs having different generations and versions to a recording medium. In the case of detecting the newest KRB, it is stored in a memory in the recording and reproducing device. In the contents storage processing to the recording medium, newest available KRBs are detected among KRBs in the memory of the recording and reproducing device and KRBs on the recording medium to acquire an encryption processing key such as a media key and to execute encryption processing for the contents. Thus, it is possible to store encrypted contents on the basis of a KRB of a newer version to the recording medium at all times.

公开(公告)号：JP2011170689A

公开(公告)日：2011-09-01

申请号：JP2010034914

申请日：2010-02-19

Applicant: Sony Corp ,  ソニー株式会社

Inventor： MIYAMA SHIGEJI ,  MATSUYAMA YUJI ,  ENAMI TSUGUTOMO ,  MITSUZAWA ATSUSHI ,  KAWASHIMA HIROSHI

IPC: G06F21/20 ,  G06F13/00 ,  G06F21/24

CPC classification number: G06F9/468 ,  G06F21/53 ,  H04L63/0227 ,  H04L63/107 ,  H04L63/145 ,  H04L67/18 ,  H04L67/303

Abstract: PROBLEM TO BE SOLVED: To provide a novel improved technology for reducing risk of exposure of an information processing apparatus due to change in a usage environment. SOLUTION: A PC 100 includes: a guest OS group managing a group including an OS executed in-house; a communication information management part 125 managing communication permission/prohibition information for which communication permission information or communication prohibition information is set; an in-house determination processing part 122 determining whether an own apparatus is used in-house and setting the communication permission information for the communication permission/prohibition information when it is determined that the own apparatus is used in-house while setting communication prohibition information for the communication permission/prohibition information when it is determined that the own apparatus is not used in-house; and a communication control part 121 controlling communication with another apparatus by an OS execution part executing the OS included in the group based on the communication permission/prohibition information. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种新颖的改进技术，用于降低由于使用环境的变化引起的信息处理装置的曝光风险。 PC 100包括：管理包括内部执行的OS的组的客户操作系统组; 管理通信许可信息或通信禁止信息的通信允许/禁止信息的通信信息管理部分125; 内部确定处理部分122当确定在内部使用自己的设备时，确定自己的设备是否在内部使用并且设置用于通信允许/禁止信息的通信许可信息，同时设置用于 当确定自己的设备不在内部使用时的通信许可/禁止信息; 以及通信控制部分121，其通过执行包括在该组中的OS的OS执行部分基于通信允许/禁止信息来控制与另一装置的通信。 版权所有（C）2011，JPO＆INPIT