发明授权
- 专利标题： Information storage system, information transfer system and storage medium thereof
- 专利标题（中）： 信息存储系统，信息传输系统及其存储介质
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申请号： US09943754申请日： 2001-09-04
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公开(公告)号： US07100055B2公开(公告)日： 2006-08-29
- 发明人: Toru Owada , Jun Kitahara , Takeshi Asahi , Takayuki Tamura , Nagamasa Mizushima , Ikuya Kawasaki , Takashi Totsuka
- 申请人： Toru Owada , Jun Kitahara , Takeshi Asahi , Takayuki Tamura , Nagamasa Mizushima , Ikuya Kawasaki , Takashi Totsuka
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： McDermott Will & Emery LLP
- 优先权： JP2000-286479 20000921
- 主分类号： G06F17/00
- IPC分类号： G06F17/00
摘要：
A storage medium includes a storage device for storing information, information required for encryption and encrypted information, and an I/F device for inputting and outputting information, information required for coding and store encrypted information in a storage device or from an external apparatus other than the storage device, and an encoding device for coding of information and decoding of encoded information. When outputting information stored inside the storage device, information is encoded using encryption key information, and along with obtaining the encoded information and obtaining the encoded encryption key information by using another encryption key. Both the encoded information and encoded encryption key information are output so that decoding the information without the storage medium is impossible.
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