곱셈기의 효율성은 정규 기저(normal basis), 다항식 기저(polynomial basis), 쌍대 기저(dual basis), 여분 표현(redundant representation) 등과 같은 유한체 원소의 표현 방법에 주로 의존한다. 특히 여분 표현에서의 제곱 및 모듈로 감산(modular reduction)은 단순한 방법에 의해 효율적으로 수행될 수 있기 때문에, 여분 표현은 흥미로운 유한체 표현 방법이다. 본 논문은 여분 표현을 사용한 기약인 all-one 다항식에 의해 정의된 GF(2SUPm/SUP)에서의 효율적인 비트-병렬 곱셈기를 제안한다. 또한 제안된 비트-병렬 곱셈기의 효율성을 향상시키기 위해, Karatsuba에 의해 제안된 잘 알려진 곱셈 방법을 변형한다. 결과로써, 제안된 곱셈기는 all-one 다항식을 사용한 기존의 알려진 곱셈기들과 비교해 적은 공간 복잡도(space complexity)를 가지는 반면에, 제안된 곱셈기의 시간 복잡도(time complexity)는 기존의 곱셈기와 유사하다.
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