Data distribution system as well as data supply device...

Electrical computers and digital processing systems: support – Data processing protection using cryptography – Tamper resistant

Reexamination Certificate

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C713S189000

Reexamination Certificate

active

10069112

ABSTRACT:
A memory card performs decryption processing to extract a session key from data applied from a server to a data bus over a cellular phone network. An encryption processing unit encrypts a public encryption key of memory card based on a session key, and applies the same to the server via data bus. A register receives and stores data such as a decrypted license ID and a user ID from the server, and a memory receives and stores encrypted content data applied from a data bus and encrypted with a license key.

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Japanese Office Action issued in corresponding Japanese Patent Application No. 2001-520398, Jul. 4, 2006 (mailing date).

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