Abstract: A user host device privately controls a shared remote process that executes in a remote device, in which respective public keys between the user host device and the shared remote process are exchanged through an intermediary device, the user host device validates the process public key based on current and previous nonce values, and sends to the remote process a double-encrypted process command, and the remote process double-decrypts the process command, executes the process command, and then returns a double-encrypted response to the user host device which decrypts and validates the response. Trust between the user host device and the remote process is established by the user host device verifying a remote process response, and the trust is maintained by chaining each session nonce with the previous session nonce, without the knowledge of the intermediary process host device.

Abstract: The invention is a system for transmitting data packets from a ground based sending terminal to a receiving ground based terminal via a satellite, In detail, the system includes each terminal having a processor for generating data packets for transmission to the satellite incorporating the downlink encoding requirements for both the sending and receiving terminal. A transmitter is included for transmitting the data packets to the satellite. A receiver means is incorporated for receiving downlinked data packets from the satellite. The satellite includes a receiver for receiving the uplinked data packets from the sending terminal. The satellite further includes a processor to determine the downlink encoding requirements of the uplinked data packets from the sending terminal. A transmitter is incorporated into the satellite for transmitting the data packets to the receiving terminal at receiving party's coding rates.

Abstract: A system for determining uplink transmission quality of timing probe signals sent from a terminal to a satellite the satellite having a system to provide an indicator signal to the terminal as to whether a timing probe signal sent from the terminal has been received thereby. Timing probe signals are sent to the satellite, which determines if they are received. If not received, the satellite informs the terminal. The terminal thereafter increases transmission power until the satellite informs the terminal of receipt. The terminal thereafter adjusts the transmission power downward until the satellite no longer detects the signal. The process is repeated so that terminal power transmission is kept at a minimum.