A computer-implemented process simulates production of oil and gas from hydrocarbon reservoirs. The apparatus comprises a radiation source and a spatial modulator having a multitude of modulating elements. Each of the mapped first numeric values are masked using the one or more stored datasets for each of the one or more input characters of the received input string to a second numeric value. A service application in communication with the medical workstation receives the data packets and causes the medical workstation to retrieve the requested information or execute the instruction. Additionally, the random number generator may comprise an optional mixing function communicatively coupled to the LFSR to read the random number, and to insert the random number into an algorithm to obtain a robust random number. the certificate is valid, not expired, has been supplied by a trusted neighbor, and does not point to an IP address that already exists for different ID’s multiple times, the method opportunistically verifies ownership of the ID certificate at the peer node’s IP address.