摘要 |
A memory card (110) includes a memory (1415) to store encrypted content data, a license hold unit (1440) to store at least a portion of license information distributed by a distribution system, a plurality of authentication data hold units (1400.1, 1400.2), each storing a plurality of authentication data that are authenticated respectively by a plurality of public authentication keys KPma, KPmb common to the distribution system, and a switch (SW2) to selectively provide the data from the plurality of authentication data hold units outside of said recording apparatus according to a request external to the memory card (110). <IMAGE> |
申请人 |
SANYO ELECTRIC CO., LTD.;FUJITSU LIMITED;HITACHI, LTD. |
发明人 |
HORI, YOSHIHIRO;TAKEMURA, HIROSHI;YOSHIKAWA, TAKATOSHI;HIOKI, TOSHIAKI;HATAKEYAMA, TAKAHISA;HASEBE, TAKAYUKI;FURUTA, SHIGEKI;TAKAHASHI, MASATAKA;ANAZAWA, TAKEAKI;TONEGAWA, TADAAKI |