发明名称 |
Microprocessor with program and data protection function under multi-task environment |
摘要 |
<p>In a microprocessor, a program key for decrypting a program and a data key for encrypting/decrypting data processed by the program are handled as cryptographically inseparable pair inside the microprocessor, so that it becomes possible for the microprocessor to protect processes that actually execute the program, without an intervention of the operating system, and it becomes possible to conceal secret information of the program not only from the other user program but also from the operating system. <IMAGE></p> |
申请公布号 |
EP1202150(A2) |
申请公布日期 |
2002.05.02 |
申请号 |
EP20010309182 |
申请日期 |
2001.10.30 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
SHIRAKAWA, KENJI;TERAMOTO, KEIICHI;HASHIMOTO, MIKIO;FUJIMOTO, KENSAKU;OZAKI, SATOSHI |
分类号 |
G06F12/14;G06F9/46;G06F9/48;G06F21/00;G06F21/22;G06F21/24;G09C1/00;(IPC1-7):G06F1/00 |
主分类号 |
G06F12/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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