An apparatus for processing data comprises a memory device storing history data, and at least one processor configured to transmit a first message to a recipient device to initiate a transmission of one or more tokens, acquire a second message, from the recipient device, to confirm that the recipient device is capable of processing the one or more tokens, and responsive to the confirmation, acquire configuration information for generating the one or more tokens. The apparatus is further configured to receive input data, identify one or more data chunks in the history data, locate a part of the input data that is redundant in the history data by searching among the one or more data chunks, generate the one or more tokens reflecting a relationship between the part of the input data and the history data, and transmit the one or more tokens to the recipient device.