EHF secure communication device

A method of regulating access to information located on a communication device, the method comprising:

• generating, by an extremely high frequency (EHF) transmitting device included in the communication device, training information, the training information specifying a data pattern used by a receiving device to select receiving device settings to exchange information over a transmission path, the training information indicating a signal propagation time, the signal propagation time representing a measure of time that it takes for an EHF transmission transmitted by the transmitting device to the receiving device to be received by the transmitting device from the receiving device over the transmission path;
• receiving from the receiving device a training completion message indicating that the training information was received by the receiving device;
• and
• generating an encryption key using one or more attributes of the training information, the one or more attributes of the training information including at least the signal propagation time.

A method of regulating access to information located on a communication device, the method comprising:

• receiving from an extremely high frequency (EHF) transmitting device training information, the training information specifying a data pattern used by a receiving device to select receiving device settings to exchange information with the transmitting device over a transmission path, the training information indicating a signal propagation time, the signal propagation time representing a measure of time that it takes for an EHF transmission transmitted by the receiving device to the transmitting device to be received by the receiving device from the transmitting device over the transmission path;
• sending by the receiving device a training completion message indicating that the training information was received by the receiving device;
• and
• generating an encryption key using one or more attributes of the training information, the one or more attributes of the training information including at least the signal propagation time.