Patent ID: 7539858
Filing Date: 2009-05-26
Classification: H04L

Abstract:
1. A packet cryptographic processing proxy apparatus, comprising: a cryptographic communication channel information storage part which stores cryptographic communication channel information used for establishing a cryptographic communication channel at least for packet communication on the Internet between a counterpart apparatus connected to the Internet and the terminal; a cryptographic processing part which performs cryptographic processing for a received packet, which is forwarded from the counterpart apparatus to the terminal or from the terminal to the counterpart apparatus, based on the cryptographic communication channel information stored in said cryptographic communication channel information storage part; a packet determination part which determines whether the received packet requests agreement with the computer apparatus on cryptographic communication channel information for establishing a packet communication channel between the counterpart apparatus and the terminal; and a cryptographic communication channel information agreement part which, if the packet determination part determines that the received packet requests the agreement, makes the agreement and stores the agreed cryptographic communication channel information in said cryptographic communication channel information storage part, wherein the packet cryptographic processing proxy apparatus is connected between the Internet and the terminal and has no IP address.