Patent ID: 7680278

Claim:
A method of securely communicating a data packet of length of K bits between a first host and a second host, the method comprising the steps of: selecting an initial transmit modulation scheme for transmission between the first host and the second host; randomly selecting by the first host a receive modulation scheme; transmitting by the first host to the second host, encoded according to the transmit modulation scheme, only a portion of the packet and an indication of the receive modulation scheme; receiving by the first host from the second host, encoded with the receive modulation scheme, an indication of a subsequent modulation scheme; and on the first host, iteratively repeating the steps of randomly selecting a receive modulation scheme, transmitting only a portion of the packet and receiving an indication of a subsequent modulation scheme, with the step of transmitting in each iteration comprising transmitting a different portion of the packet and using as a transmit modulation scheme the subsequent modulation scheme received in the prior iteration.