| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a private communication means which constructs a VPN (Virtual Private Network) between a client and a server or between servers in order to prevent the leakage or alteration of information, etc. on a network. <P>SOLUTION: A private communication controller capable of processing all functions on a private communication board 10 for executing private communication based on the IPSec, for executing authentication/key exchange prior to the private communication, for setting/changing an algorithm of ciphers, etc., as desired, and for forming cipher key and public key certificates for using public key ciphers secures a means for preventing the leakage or alteration of information, etc. on a network. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
