公开(公告)号：EP1624609B1

公开(公告)日：2011-08-24

申请号：EP05077294.6

申请日：2001-01-19

Applicant: Sony Computer Entertainment Inc. ,  Sony Corporation

Inventor： Asano, Tomoyuki, Sony Corporation ,  Ishibashi, Yoshihito, Sony Corporation ,  Shirai, Taizo, Sony Corporation ,  Akishita, Toru, Sony Corporation ,  Yoshimori, Masaharu c/o Sony Computer Enttertainmet Inc. ,  Tanaka, Makoto, c/o Sony Computer Entertainment Inc.

IPC: H04L9/32 ,  G11B20/00 ,  G06F1/00

CPC classification number: H04L9/3273 ,  G06F21/10 ,  G06F21/64 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00507 ,  G11B20/00536 ,  G11B20/00557 ,  G11B20/00739 ,  G11B20/00753 ,  G11B20/00775 ,  G11B2020/00057 ,  H04L9/0625 ,  H04L9/0637 ,  H04L9/0643 ,  H04L9/0897 ,  H04L9/14 ,  H04L9/3242 ,  H04L9/3247 ,  H04L2209/60

公开(公告)号：EP1653653A4

公开(公告)日：2011-03-09

申请号：EP04771306

申请日：2004-07-30

Applicant: PANASONIC CORP

Inventor： YAMAMOTO NAOKI ,  ISHIHARA HIDESHI ,  TATEBAYASHI MAKOTO ,  NAKANO TOSHIHISA

IPC: G11B20/00 ,  H04L9/08 ,  H04N5/00 ,  H04N5/85 ,  H04N5/913 ,  H04N7/16

CPC classification number: H04N7/165 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00362 ,  G11B20/00492 ,  G11B20/00536 ,  G11B2220/2562 ,  H04N5/85 ,  H04N5/913 ,  H04N21/2585 ,  H04N21/26613 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/835 ,  H04N2005/91364

公开(公告)号：EP1422709B1

公开(公告)日：2006-06-14

申请号：EP03028591.0

申请日：2002-07-09

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Harada, Shunji ,  Miyazaki, Masaya ,  Matsui, Shinichi ,  Inoue, Shinji ,  Matsuzaki, Natsume ,  Noguchi, Naohiko

IPC: G11B20/00 ,  G06F1/00 ,  H04L29/06 ,  H04Q7/38

CPC classification number: H04W12/06 ,  G06F21/10 ,  G06F21/445 ,  G06F2221/0704 ,  G06F2221/0744 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00144 ,  G11B20/00181 ,  G11B20/00188 ,  G11B20/00195 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00528 ,  G11B20/00536 ,  G11B20/00666 ,  G11B20/0071 ,  G11B20/00731 ,  G11B20/00753 ,  G11B20/00797 ,  G11B20/0084 ,  G11B20/00855 ,  G11B2220/60 ,  H04L63/0428 ,  H04L63/08 ,  H04L63/0869 ,  H04L63/0876 ,  H04L63/10 ,  H04L63/104 ,  H04L2463/101 ,  H04N7/1675 ,  H04N21/23892 ,  H04N21/41407 ,  H04N21/4184 ,  H04N21/4367 ,  H04N21/4408 ,  H04N21/44204 ,  H04N21/4627 ,  H04N21/472 ,  H04N21/6125 ,  H04N21/8113 ,  H04N21/8352 ,  H04N21/8355 ,  H04W12/02

公开(公告)号：EP1653653A1

公开(公告)日：2006-05-03

申请号：EP04771306.0

申请日：2004-07-30

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： YAMAMOTO, Naoki ,  ISHIHARA, Hideshi ,  TATEBAYASHI, Makoto ,  NAKANO, Toshihisa

IPC: H04L9/08

CPC classification number: H04N7/165 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00246 ,  G11B20/00362 ,  G11B20/00492 ,  G11B20/00536 ,  G11B2220/2562 ,  H04N5/85 ,  H04N5/913 ,  H04N21/2585 ,  H04N21/26613 ,  H04N21/4334 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623 ,  H04N21/835 ,  H04N2005/91364

Abstract: In the present invention, apparatuses are classified into a plurality of categories, and based on a media key and device key data held by apparatuses belonging to the respective categories, revocation data intended for revoking the device key held by a specific apparatus of the respective categories is generated for the respective categories, and recorded on a recording medium.

Abstract translation: 在本发明中，设备被分为多个类别，并且基于由属于各个类别的设备所保存的媒体密钥和设备密钥数据，用于撤销由各个类别的特定设备保持的设备密钥的撤销数据 对于各个类别生成并记录在记录介质上。

公开(公告)号：EP1235381A4

公开(公告)日：2005-08-10

申请号：EP01982750

申请日：2001-11-09

Applicant: SONY CORP

Inventor： ISHIGURO RYUJI ,  ASANO TOMOYUKI

IPC: G06F21/00 ,  G11B20/00 ,  H04L9/08 ,  H04L9/32 ,  H04L9/00 ,  G06F12/14 ,  G11B20/10

CPC classification number: H04L9/0822 ,  G06F21/10 ,  G06F21/80 ,  G06F2221/2135 ,  G11B20/00086 ,  G11B20/00166 ,  G11B20/00188 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00536 ,  H04L9/0836 ,  H04L9/0891 ,  H04L2209/60

Abstract: Information processing system and method for detecting a revoke entity by using an effecting key block (EKB). On the basis of the effective key block (EKB) used in a key distribution construction of a tree structure, a device or service provider is judged as a revoke (reject) entity. In a public key certificate, an ID for identifying the position of a hierarchical key distribution tree is stored, and a tracing is executed using a tag of the effective key block (EKB) on the basis of the ID acquired from the public key certificate, to judge whether or not the ID is at the position where an EKB processing (decoding) is possible and thereby to judge whether or not the entity corresponding to the ID is revoked.

公开(公告)号：EP1424695A2

公开(公告)日：2004-06-02

申请号：EP03026875.9

申请日：2003-11-24

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kojima, Tadashi, Toshiba Corporation ,  Yamada, Hisashi, Toshiba Corporation ,  Kato, Taku, Toshiba Corporation ,  Ishihara, Atsushi, Toshiba Corporation ,  Taira, Kazuhiko, Toshiba Corporation

IPC: G11B20/00

CPC classification number: G11B20/0021 ,  G11B20/00086 ,  G11B20/00246 ,  G11B20/00282 ,  G11B20/00347 ,  G11B20/00528 ,  G11B20/00536 ,  G11B20/00666 ,  G11B20/00673 ,  G11B20/1217

Abstract: In a content management method, content data is encrypted by a first key (TK), the first key is encrypted by plural types of second keys (MUK), the encrypted first key (Enc-TK) is multiply encrypted by a third key (MM), and the third key is encrypted by a fourth key (MMK). These encrypted content data (End-Contents), a medium key which is the first key (Enc-TK) encrypted by the second key and a move key which is a first key (Enc2-MM) multiply encoded by the second and third keys are recorded in a recording medium, the third key (Enc-MM) encrypted by the fourth key is recorded in a security region. This management method is managed by the move key and the medium key.

Abstract translation: 在内容管理方法中，通过第一密钥（TK）对内容数据进行加密，第一密钥由多种类型的第二密钥（MUK）加密，加密的第一密钥（Enc-TK）被第三密钥乘法加密 MM），第三个密钥由第四个密钥（MMK）加密。 这些加密内容数据（End-Contents），作为通过第二密钥加密的第一密钥（Enc-TK）的中密钥和作为第二密钥和第三密钥乘法编码的第一密钥（Enc2-MM）的移动密钥 被记录在记录介质中，由第四密钥加密的第三密钥（Enc-MM）被记录在安全区域中。 该管理方法由移动键和中键控制。

公开(公告)号：EP1411514A2

公开(公告)日：2004-04-21

申请号：EP03023803.4

申请日：2003-10-17

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Shimbo, Masatoshi ,  Horii, Noriaki

IPC: G11B20/00

CPC classification number: G11B20/0021 ,  G11B20/00086 ,  G11B20/00253 ,  G11B20/00536 ,  G11B20/00666 ,  G11B20/00753 ,  G11B20/10

Abstract: A format conversion apparatus is provided for converting a format of an information recording medium, comprising a section for reproducing coded encrypted title key information E'(Kti) stored on the information recording medium to generate encrypted title key information E(Kti), a section for encrypting the encrypted title key information E(Kti) using a random number MMi. to generate doubly-encrypted title key information E 2 (Kti); a section for encrypting the random number MMi using a second encryption key to generate an encrypted random number E(MMi), a section for recording the doubly-encrypted title key information E 2 (Kti) onto the information recording medium as coded doubly-encrypted title key information E 2 ' (Kti); and a section for recording the encryptedrandomnumber E(MMi) onto the information recording medium as coded encrypted random number E'(MMi).

Abstract translation: 再现单元再现的编码存储的信息记录介质上的加密标题密钥的信息，以生成加密标题密钥的信息。 一个加密单元使用随机数，以产生双加密标题密钥信息而生成的标题密钥的信息。 上述记录单元记录双重加密的标题密钥信息和加密的随机数作为编码数据，到记录介质上。 因此独立权利要求中包括了以下内容：（1）信息记录/再现装置; （2）信息再现装置; （3）格式转换方法; 和（4）信息记录/再现方法。

公开(公告)号：EP1187390A4

公开(公告)日：2003-05-07

申请号：EP01917787

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

CPC classification number: H04L9/0836 ,  G06F21/10 ,  G06F2221/0753 ,  G06F2221/0771 ,  G06F2221/0797 ,  G06F2221/2107 ,  G06F2221/2109 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00253 ,  G11B20/00536 ,  H04L9/0891 ,  H04L2209/60

Abstract: A content key, an authentication key, program data along with an effective key block (EKB) are transmitted by an encryption key structure of a tree structure. The EKB has a structure in which a device constituting a tree leaf holds a leaf key and a limited node key. A specific effective key block (EKB) is generated and distributed to a group specified by a specific node, thus limiting an updateable device. A device not belonging to a group cannot be decoded, ensuring the distribution security of the key and so forth. Keys or data is distributed by an encryption key structure of tree structure, thereby providing an information processing system and method capable of efficiently and safely distributing data.

公开(公告)号：EP1267515A2

公开(公告)日：2002-12-18

申请号：EP02078475.7

申请日：2001-01-19

Applicant: Sony Corporation

Inventor： Asano, Tomoyuki, c/o Sony Corporation ,  Ishibashi, Yoshihito, c/o Sony Corporation ,  Shirai, Taizo, c/o Sony Corporation ,  Akishita, Toru, c/o Sony Corporation ,  Yoshimori, Masaharu, c/o Sony Corporation ,  Tanaka, Makoto, c/o Sony Corporation

IPC: H04L9/06 ,  H04L9/32

CPC classification number: H04L9/3273 ,  G06F21/10 ,  G06F21/64 ,  G11B20/00086 ,  G11B20/00123 ,  G11B20/00173 ,  G11B20/0021 ,  G11B20/00224 ,  G11B20/00246 ,  G11B20/00492 ,  G11B20/00507 ,  G11B20/00536 ,  G11B20/00557 ,  G11B20/00739 ,  G11B20/00753 ,  G11B20/00775 ,  G11B2020/00057 ,  H04L9/0625 ,  H04L9/0637 ,  H04L9/0643 ,  H04L9/0897 ,  H04L9/14 ,  H04L9/3242 ,  H04L9/3247 ,  H04L2209/60

Abstract: A record reproducing player and save data processing methods capable of insuring security of save data are provided. Save data is stored in a recording device, encrypted with the use of a program's individual encryption key, e.g., a content key, or a save data encryption key created based the content key, and when reproducing the save data a decryption process is conducted on it with the use of the save data decryption key particular to the program. Furthermore, it is made possible to create save data encryption keys based on a variety of restriction information, such as performing the storing and reproducing of the save data by conducting encryption and decryption on the save data with the save data encryption keys and decryption keys created with the use of a record reproducing player's individual key or a user's password.

Abstract translation: 提供电唱机再现和保存能够确保数据保存的安全数据处理方法。 保存的数据被存储在记录装置中，与使用的程序的个人加密密钥，例如，内容密钥的加密，或保存数据加密密钥创建基于内容密钥，和再现保存的数据时的解密处理中进行上 它与使用保存数据解密密钥特别的程序。 进一步，它使得能够创建保存基于各种的限制信息，颜色数据加密密钥：诸如通过在与保存数据的加密密钥和解密密钥创建的保存数据进行加密和解密执行保存数据的存储和再现 与使用记录再生球员的个人密钥或用户的密码。

公开(公告)号：EP1061515A3

公开(公告)日：2002-10-02

申请号：EP00304773.5

申请日：2000-06-06

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Ono, Takatoshi ,  Harada, Shunji

IPC: G11B20/00

CPC classification number: G11B20/0021 ,  G11B20/00086 ,  G11B20/00094 ,  G11B20/00115 ,  G11B20/00536 ,  G11B20/00557 ,  G11B20/0084 ,  G11B2020/10546 ,  G11B2220/60

Abstract: In each digital content utilize session, a memory card generates conversion key information for specifying a data conversion, while a player generates inverse conversion key information for specifying an inverse data conversion. The memory card then performs the data conversion specified by the conversion key information on management information stored therein, and sends the converted management information and digital content stored therein to the player. The player performs the inverse data conversion specified by the inverse conversion key information on the converted management information to restore the management information, and utilizes the digital content in accordance with restrictions set in the restored management information to limit the use of the digital content.

Abstract translation: 在各数字内容使用会话，用于指定数据转换的存储卡率基因转换的关键信息，而玩家生成率逆转换的关键信息，指定逆数据转换。 存储卡随后执行由存储在其中的管理信息的转换密钥信息规定的数据转换，并发送存储在其中给玩家的转换的管理信息和数字内容。 玩家执行由逆转换密钥信息对转换的管理信息，以还原管理信息所指定的逆数据转换，并且利用在雅舞蹈与所恢复的管理信息中设置限制使用数字内容的限制的数字内容。