发明名称 |
Common key exchanging method and communication device |
摘要 |
Upon receipt of a public value X from a device A, a device B estimates a time to be taken for calculation of a public value Y and a time to be taken for calculation of a common key K, and then calculates a required operation time Tb required at the device B for a key exchanging process for transmission to the device A to report a response delay time S306 and S307. Then, the device B actually calculates the public value Y and the common key K S309 and S310. Upon receipt of the required operation time Tb, the device A extends a waiting limit (timeout time) for a response from the device B to a time when the required operation time Tb elapses from the reception S311.
|
申请公布号 |
US2004162983(A1) |
申请公布日期 |
2004.08.19 |
申请号 |
US20040762544 |
申请日期 |
2004.01.23 |
申请人 |
GOTOH YUKIE;YOKOTA HIROSHI;TAMAI MASAAKI;TSUJI ATSUHIRO;TAKAGAKI KEIICHI |
发明人 |
GOTOH YUKIE;YOKOTA HIROSHI;TAMAI MASAAKI;TSUJI ATSUHIRO;TAKAGAKI KEIICHI |
分类号 |
H04L9/08;H04L29/06;(IPC1-7):H04L9/00 |
主分类号 |
H04L9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|