Abstract:
A method and system for controlling the disclosure time of information by a publisher (10) to one or more recipients (31) is provided. The system includes a trusted body (30) which generates an asyrrunetrical key pair for a specified date and time of disclosure with an encryption key (32) and a decryption key (34). The trusted body (30) provides a digital certificate (20) signed with a private key (26) of the trusted body (30) providing the publisher (10) with the encryption key (32) prior to the specified date and time. The publisher (10) uses the encryption key (32) to encrypt data (15) and a recipient (31) obtains the encrypted data (15) at any time prior to the specified date and time. The trusted body (30) then makes the decryption key (34) available to the recipient (31 ) at or after the specified date and time.
Abstract:
There is described a data logging method for transferring log data to a server over a wireless network from a plurality of remote devices, said server for receiving data from the plurality of said devices, said method comprising the following steps: scheduling a transfer period for transferring log data from a device to the server taking into account the wireless network signal strength of the device for the scheduled transfer period whereby the scheduled transfer period does not overlap a time when the estimated wireless network strength is too low to transfer the log data; and transferring data determined by its respective transfer period in the schedule.