1. A method of implementing a parallelized algorithm for solving the key equation for the decoding of a linear algebraic code, said method comprising the steps of: providing computation sequences for performing respective discrepancy value computations, one sequence executing only three multiplication operations and the other sequence executing only five multiplication operations, 2t iterations of these two sequences being required to decode t symbols in error; and coupling said sequences for, during a pair of successive 2t iterations, executing for all sequences of discrepancy values no more than four pairs of multiplication operations, with each pair performed as two parallel multiplications, in such manner that the fifth multiplication operation in said other sequence is combined with a multiplication operation in the next execution of said one sequence and two consecutive executions of said other sequence are prevented regardless of the nature of any errors in the information being decoded, as manifested by the sequences of discrepancy values.