发明名称 |
Method of generating a public key in a secure digital communication system and implicit certificate |
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 informationƒand generates a value kA by binding withƒwith private values of the trusted entity. The trusted entity transmits the value kA to the entity to permit A to generate a private key from kA, 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. |
申请公布号 |
EP1066699(A1) |
申请公布日期 |
2001.01.10 |
申请号 |
EP19990908723 |
申请日期 |
1999.03.23 |
申请人 |
CERTICOM CORP. |
发明人 |
QU, MINGHUA;VANSTONE, SCOTT, A. |
分类号 |
G09C1/00;H04L9/08;H04L9/32;(IPC1-7):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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