| 摘要 |
PROBLEM TO BE SOLVED: To provide a public key generating apparatus and method and a public key certificate issuing method in which strong privacy protection is realized to prevent impersonating. SOLUTION: A host 206 requests an anonymous public key certificate from a gateway 202, and the gateway 202 generates an anonymous public key and requests an anonymous public key certificate from a Certification Authority (CA) 209. The CA 209 generates an anonymous public key certificate, which is sent to the host 206 through the gateway 202. The host 206 requests and receives a new anonymous public key certificate whenever necessary, and sends a public key certificate including an IPv6 address to the communication partner. COPYRIGHT: (C)2006,JPO&NCIPI
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