Method of authenticating a client in a client-server architecture

Abstract

The present invention relates to a method for authenticating a Client in a Client-Server architecture. The method encodes the Client's input passcode using a Regulated Activation Network computational model to create a Hierarchical model. Depending upon a Policy shared between the Client and the Server, different combinations of encoded passcodes generated from the Hierarchical model, are selected. After every successful authentication operation, a new policy is generated. Because of these new policies, for every authentication attempt, the Client inputs the same passcode but the passcode communicated over the network is always different. The advantages of this method include random encoded passcode generation for the Client's identity verification. This randomness ensures that the generated encoded passcodes are never repeated in two successive authentication attempts. The use of Models, Policies, and the Client's passcode together makes the authentication method highly robust.