Patent ID: 8127355

Claim:
A system for protecting network resources from denial of service attacks, comprising: a memory configured to store an access filter value uniquely calculated for a remote communication device, wherein the access filter value includes a hash value calculated from one or more randomly generated dynamic values using a predetermined hash function; and responder logic configured to execute on a responder computer device, wherein the responder logic causes the responder computer device to: transmit the one or more randomly generated dynamic values to the remote communication device over a network, wherein the remote communication device calculates a hash value from the one or more randomly generated dynamic values using the predetermined hash function; receive a message frame from the remote communication device over the network, wherein the message frame includes the hash value calculated at the remote communication device; and authenticate the message frame received from the remote communication device in response to determining that the hash value included in the message frame matches the access filter value stored in the memory.