FIELD: information technologies.
SUBSTANCE: method contains stages, at which a sequence of the first rows (29, 30) in data units (Pj) is received from a flow, an order of the units (Pi) is reversed in each of the first rows (29, 30) of the units, in order to generate the appropriate second rows (31, 37) of the data units, and units are coded on each second row (31, 37) of the units with the help of a code (Ec) in the mode of units coupling, initiated with the help of an appropriate vector of initiation (IV3, IVN) for every second row (31, 37) of the units. For the sequence of the first rows (29, 30) of the units included into a single data unit (26) within the flow, at least one initiation vector (IVN) is generated to code the second row (37) of units generated from the first row (30) of the units in the data unit, depending on at least one unit in the preceding first row (29) of the data unit blocks.
EFFECT: reduced required short-term memory at the sender's side.
24 cl, 7 dwg
