Patent ID: 6308213
Filing Date: 2001-10-23
Classification: H04L

Abstract:
A method for creating a secure dial-up session from a remote client to a local network through an internet service provider, comprising:establishing a first communication link between the remote client and the internet service provider;sending a random number from the internet service provider to the remote client;encrypting the random number according to a remote client password to obtain a first keyed random number with the remote client;transmitting a remote client name and the first keyed random number from the remote client to the internet service provider;transmitting the remote client name, the random number, and the first keyed random number from the internet service provider to a local network;mapping the remote client name with a corresponding prestored client password at the local network;encrypting the random number according to the prestored client password to obtain a second keyed random number;comparing the first keyed random number with the second keyed random number to authenticate the remote client; andestablishing a second communication link between the internet service provider and the local network when the first keyed random number is authenticated with the second keyed random number.