发明名称 |
SESSION CONTROL SERVER AND COMMUNICATION SYSTEM |
摘要 |
<p>A communication device, connected via a network so as to be able to communicate with a session control server, and which establishes a session with another communication device by performing signal transmission to and reception from the session control server, includes: a unit which generates an asymmetric key pair; a request unit which requests certificate issuance for a public key in the asymmetric key pair; a receiving unit which receives notification of public key issuance completion from the session control server; a storage unit which stores a public key certificate which has been received; a sending unit which sends a location registration request of a communication device to the session control server; and a receiving unit which receives a location registration completed notification which includes a term of validity from the session control server; and which sends a location registration request and a certificate issuance request as a combined request.</p> |
申请公布号 |
EP1635502(A1) |
申请公布日期 |
2006.03.15 |
申请号 |
EP20040746411 |
申请日期 |
2004.06.18 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
ONO, KUMIKO;TACHIMOTO, SHINYA;SAKAYA, SEIICHI |
分类号 |
H04L9/08;G06F13/00;H04L9/32;(IPC1-7):H04L9/08 |
主分类号 |
H04L9/08 |
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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