发明名称 Information processing apparatus, information processing method, information providing medium, information decryption apparatus, and information recording medium
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.
申请公布号 US8156555(B2) 申请公布日期 2012.04.10
申请号 US20100766414 申请日期 2010.04.23
申请人 ISHIBASHI YOSHIHITO;SONY CORPORATION 发明人 ISHIBASHI YOSHIHITO
分类号 G06F7/04;H04L9/08;H04L9/32 主分类号 G06F7/04
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