Data distributing system and recording medium used for it

Details Data distributing system and recording medium used for it Data distributing system and recording medium used for it

2000-11-16

2011-11-01

Parthasarathy, Pramila (Department: 2436)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

By stored data protection

C726S027000, C726S002000, C380S242000, C380S277000

Reexamination Certificate

active

08051302

ABSTRACT:
Encrypted music data and additional information necessary for accessing a server (30) are copied from a CD-ROM (200) onto a memory card (110). The memory card (110) receives via a digital portable phone network the distribution of a contents decoding key (Kc) necessary for decoding encrypted music data and control information data (AC1) for limiting the number of accesses to the memory card from the server (30).

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