Error Detection in Polynomial Basis Multiplies over Binary Extension Fields

摘要

In many of cryptographic schemes, the most time consuming basic arithmetic operation is the finite field multiplication and its hardware implementation may require millions of logic gates. It is a complex and costly task to develop such large finite field multipliers which will always yield error free outputs. In this effect, this paper considers fault tolerant multiplication in finite fields. It deals with detection of errors of bit-parallel and bit-serial polynomial basis multipliers over finite fields of characteristic two. Our approach is to partition the multiplier structure into a number of smaller computational units and use the parity prediction technique to detect errors.