发明名称 Data copyright management system and apparatus
摘要 A digital content management system is provided, which protects the secrets of a digital content in a network, characterized by a decryption/re-encryption apparatus (65, 66, 67) between networks (60, 61, 62). According to a preferred embodiment, said decryption/re-encryption apparatus comprises a configuration of crypt key conversion devices.
申请公布号 EP0880088(B1) 申请公布日期 2012.11.21
申请号 EP19980109085 申请日期 1998.05.19
申请人 INTARSIA SOFTWARE LLC 发明人 SAITO, MAKOTO
分类号 G06F12/14;G06F21/00;G06F1/00;G06F17/30;G06F21/24;G09C1/00;G10K15/02;H04L29/06 主分类号 G06F12/14
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