发明名称 |
Microprocessor using public key decryption processing |
摘要 |
<p>In a microprocessor (101) that internally has a microprocessor specific secret key, a key management unit (701) is provided to carry out a key registration for reading out from an external memory a distribution key that is obtained in advance by encrypting the instruction key by using a public key corresponding to the secret key, decrypting the distribution key by using the secret key to obtain the instruction key, and registering the instruction key in correspondence to a specific program identifier for identifying the program into a key table, and to notify a completion of the key registration to the processor core (201) asynchronously by interruption when the key registration is completed. <IMAGE></p> |
申请公布号 |
EP1229427(A2) |
申请公布日期 |
2002.08.07 |
申请号 |
EP20020250667 |
申请日期 |
2002.01.31 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
HASHIMOTO, MIKIO;SHIRAKAWA, KENJI;TERAMOTO, KEIICHI;FUJIMOTO, KENSAKU;OZAKI, SATOSHI |
分类号 |
G06F12/08;G06F9/30;G06F9/318;G06F9/46;G06F12/14;G06F21/00;G06F21/24;H04L9/08;H04L9/10;(IPC1-7):G06F1/00 |
主分类号 |
G06F12/08 |
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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