Patent ID: 7519986

Claim:
A router based authentication system that authenticates the source of the data packets, comprising: a. a subsystem integrated with a router with means (i) to receive a telephone call from a user desiring access to a computer network, (ii) to verify the user by a caller id with a pre-stored database of caller ids in an authentication database, (iii) to generate a random alphanumeric and save it in the authentication database, and (iv) to voice deliver the alphanumeric to the user; b. a security function in a user client, capable of receiving data entry of a passkey, the passkey comprising of the caller id and the alphanumeric, and the security function having a means to encrypt the passkey and embed in the header of each outgoing data packet from the client to the router; c. a packet authentication function in the router that decrypts the passkey in the packet header and verifies that the alphanumeric matches with the database entry in the authentication database.