发明名称 |
Implicit certificate scheme |
摘要 |
A method of generating a public key in a secure digital communication system, having at least one trusted entity CA and subscriber entities A. For each entity A, the trusted entity selects a unique identity distinguishing the entity A. The trusted entity then generates a public key reconstruction public data of the entity A by mathematically combining public values obtained from respective private values of the trusted entity and the entity A. The unique identity and public key reconstruction public data of the entity A serve as A's implicit certificate. The trusted entity combines the implicit certificate information with a mathematical function to derive an entity information f and generates a value k<SUB>A </SUB>by binding with f with private values of the trusted entity. The trusted entity transmits the value k<SUB>A </SUB>to the entity to permit A to generate a private key from k<SUB>A</SUB>, A's private value and A's implicit certificate. The entity A's public key information may be reconstructed from public information, and A's implicit certificate.
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申请公布号 |
US2005114651(A1) |
申请公布日期 |
2005.05.26 |
申请号 |
US20040921870 |
申请日期 |
2004.08.20 |
申请人 |
QU MINGHUA;VANSTONE SCOTT A. |
发明人 |
QU MINGHUA;VANSTONE SCOTT A. |
分类号 |
G09C1/00;H04L9/08;H04L9/32;(IPC1-7):H04L9/00 |
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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