发明授权
- 专利标题： Information processing apparatus, information processing method, information providing medium, information decryption apparatus, and information recording medium
- 专利标题（中）： 信息处理装置，信息处理方法，信息提供介质，信息解密装置和信息记录介质
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申请号： US11447260申请日： 2006-06-06
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公开(公告)号： US07734920B2公开(公告)日： 2010-06-08
- 发明人: Yoshihito Ishibashi
- 申请人： Yoshihito Ishibashi
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 优先权： JP10-281087 19981002
- 主分类号： H04L9/00
- IPC分类号： H04L9/00 ; G06F11/00
摘要：
An information processing apparatus, an information processing method, and an information providing medium are provided. Encrypted information, an encrypted first key for decrypting the encrypted information, and a second key for decrypting the first key are processed to store the information in a storage medium. To be more specific, cross certification is executed with the storage medium, the first key is decrypted by the second key, the decrypted first key is encrypted, and the decrypted first key and the encrypted information are stored in the storage medium. The novel constitution prevents unauthorized replication of information by use of a low-cost, general-purpose semiconductor memory.