Invention Grant
- Patent Title: Content distributing system with dynamic encryption keys
- Patent Title (中): 具有动态加密密钥的内容分发系统
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Application No.: US11059419Application Date: 2005-02-17
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Publication No.: US08261360B2Publication Date: 2012-09-04
- Inventor: Miki Murakami , Kenichi Tsuchiya
- Applicant: Miki Murakami , Kenichi Tsuchiya
- Applicant Address: JP Tokyo
- Assignee: Sony Corporation
- Current Assignee: Sony Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-095273 20040329
- Main IPC: G06F7/04
- IPC: G06F7/04 ; G06F21/00

Abstract:
A content distributing system for distributing content disclosed herein is an encrypting apparatus for encrypting each of objects constituting content using a different encryption key, a content offering apparatus for offering the encrypted content to a content reproducing apparatus; a license information offering apparatus for offering license information including information necessary for decrypting the encrypted content, and a content reproducing apparatus for acquiring the encrypted content from the content offering apparatus in order to decrypt and reproduce the acquired content using the license information acquired from the license offering apparatus.
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