发明名称 |
Secret key generating method, common key generating method, encryption method, cryptographic communication method and cryptographic communication system |
摘要 |
At the time when generating a secret key of each entity by using each divided identification information (ID division vector) obtained by dividing identification information (ID vector) of each entity into a plurality of blocks and by using a secret symmetric matrix of each key generating agency (center), a part of the components of the symmetric matrix is extracted in accordance with each divided identification information (ID division vector) so that the extracted components are synthesized with a random number particular to each entity so as to generate a secret key of each entity.
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申请公布号 |
US6996724(B2) |
申请公布日期 |
2006.02.07 |
申请号 |
US20010767620 |
申请日期 |
2001.01.23 |
申请人 |
MURATA KIKAI KABUSHIKI KAISHA |
发明人 |
MURAKAMI YASUYUKI;KASAHARA MASAO;TSUJII SHIGEO |
分类号 |
G09C1/00;H04L9/00;H04L9/08 |
主分类号 |
G09C1/00 |
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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