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Apparatus and method for processing information apparatus and method for providing information, apparatus and method for managing usage right, recording medium and program

An information processing method and a technology for recording media, which are applied in the field of information processing equipment and can solve problems such as content provider profit loss

Inactive Publication Date: 2004-09-29
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the profit that the content provider can obtain is lost

Method used

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  • Apparatus and method for processing information apparatus and method for providing information, apparatus and method for managing usage right, recording medium and program
  • Apparatus and method for processing information apparatus and method for providing information, apparatus and method for managing usage right, recording medium and program
  • Apparatus and method for processing information apparatus and method for providing information, apparatus and method for managing usage right, recording medium and program

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0058] FIG. 2 shows the configuration of the content providing system according to the present invention. The client 1-1 and the client 1-2 (hereinafter referred to simply as the client 1 when it is not necessary to distinguish the individual clients) are connected to the Internet 2. Although only two clients are shown in this example, any number of clients may be connected to the Internet 2.

[0059] In addition, the content server 3, the license server 4 and the billing server 5 are connected to the Internet 2, wherein the content server 3 provides the content to the client 1, and the license server 4 will be used for the necessary use of the content provided by the content server 3 The right is granted to the client 1, and the billing server 5 bills the client 1 when the client 1 receives the usage right.

[0060] Each of an arbitrary number of content servers 3 , license servers 4 and billing servers 5 is connected to the Internet 2 .

[0061] FIG. 3 shows the configurat...

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Abstract

The present invention relates to an information processing apparatus and method, an information providing apparatus and method, a usage right management apparatus and method, a recording medium, and a program for preventing unauthorized use of content. A root key Kroot is obtained from an EKB of content provided by a content server 3. Using the obtained root key Kroot, data E(Kroot, Kekb) is decrypted, thus obtaining an EKB key Kekeb. A usage right provided by a license server 4 includes data E(Kpub, Ksub), which is decrypted by a private key Kpri to obtain a sub key Ksub. Using the EKB key Kekb and the sub key Ksub, a content key Kc is generated. Using the generated content key Kc, the content is decrypted. The present invention is applicable to a personal computer or the like that uses content provided via a network, such as the Internet.

Description

technical field [0001] The present invention relates to an information processing apparatus and method, an information providing apparatus and method, a usage rights management apparatus and method, a recording medium and a program. More particularly, the present invention relates to an information processing apparatus and method, an information providing apparatus and method, a usage rights management apparatus and method, a recording medium and a program for reliably preventing unauthorized use of content. Background technique [0002] Various broadband environments have recently been developed. Services for distributing various types of content, such as music data and moving image data, have begun to be provided on a large scale. [0003] For example, subscription music delivery services have been provided, such as the "PressPlay" (trademark) music delivery service, where users pay a predetermined monthly fee to use the music content within a predetermined range (eg, cap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14G06F21/00G06F21/10G06F21/62G06Q10/00G06Q30/06G06Q50/00G06Q50/10G11B20/00H04L9/08H04L9/32H04N7/08H04N7/081H04N7/167H04N21/4623
CPCG11B20/00086G11B20/0021H04L9/0836G11B20/00855H04L9/0822G06F2221/0755G11B20/00536G11B20/0071G11B20/00333G06F2221/2107G06F21/10H04L2209/601H04L9/0891G11B20/00181G06F21/107
Inventor 石黑隆二
Owner SONY CORP