An apparatus and method for performing multiple exclusive OR (XOR) operations using standard binary multiplication circuitry to create multiple XOR expressions simultaneously. The method and apparatus include a multiplication circuit to generate a product result by performing a multiplication between a multiplier and a multiplicand. A selection circuit is then used to break down the product result into a plurality of partial product sub-expressions. An XOR gate is provided to generate a final expression from one or more of the plurality of partial product sub-expression. The present invention is suited for performing calculations involving a large number of XOR operations with various combinations of product terms, such as cyclical redundancy check calculations.