Information processing apparatus, information processing...

Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique

Reexamination Certificate

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Details

C713S170000, C713S193000, C380S281000, C380S284000, C726S007000, C726S027000

Reexamination Certificate

active

07127612

ABSTRACT:
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.

REFERENCES:
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patent: 4799061 (1989-01-01), Abraham et al.
patent: 5758069 (1998-05-01), Olsen
patent: 6421779 (2002-07-01), Kuroda et al.
patent: 6-289782 (1994-10-01), None

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