发明名称 |
Key installation system, LSI for implementing the same, and key installation method |
摘要 |
In the key installation system for improving the confidentiality and concealment of the key, a first decrypting circuit decrypts an encrypted key EKEY1(EDK(MK1)) using an encrypted key EDK1(MK1) as the key. A second decrypting circuit decrypts an encrypted key EMK1(KEY1) using the output of the second decrypting circuit, that is, an internal key KEY1 as the key. A third decrypting circuit decrypts the encrypted key EDK1(MK1) using the output of the second decrypting circuit, that is, an internal key MK1 as the key, to generate a final secret key DK1. |
申请公布号 |
US2003074571(A1) |
申请公布日期 |
2003.04.17 |
申请号 |
US20020246749 |
申请日期 |
2002.09.19 |
申请人 |
FUJIWARA MAKOTO;NEMOTO YUSUKE |
发明人 |
FUJIWARA MAKOTO;NEMOTO YUSUKE |
分类号 |
G06F12/14;G06F21/24;H04L9/08;H04L9/10;(IPC1-7):H04L9/32;G06F11/30 |
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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