32-bit RISC-V 프로세서 상에서의 경량 블록 암호 SIMECK, SIMON 카운터 운용 모드 최적 구현
Optimized Implementation of Lightweight Block Cipher SIMECK and SIMON Counter Operation Mode on 32-Bit RISC-V Processors
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초록
본 논문에서는 32-bit RISC-V 프로세서 상에서 경량 블록 암호인 SIMECK과 SIMON의 카운터 운용 모드에 대한 최적 구현을 제안한다. CTR 운용 모드의 특징을 활용하여 일부 값을 사전 연산하는 라운드 함수 최적화, 단일 평문 최적화와 2개의 평문 병렬 최적화를 제안한다. RISC-V 상에서의 SIMECK과 SIMON에 대한 선행 연구 결과가 존재하지 않기 때문에 단일 평문 최적화와 2개의 평문 병렬 최적화 구현물에 대해 사전 연산 기법이 적용된 구현물과 사전 연산이 적용되지 않은 구현물의 성능을 비교하였다. 결과적으로, 사전 연산 기법이 적용된 구현물은 사전 연산이 적용되지 않은 구현물 대비 모두 1%의 성능 향상을 확인하였다.
Abstract
In this paper, we propose an optimal implementation of lightweight block ciphers, SIMECK and SIMON counter operation mode, on a 32-bit RISC-V processor. Utilizing the characteristics of the CTR operating mode, we propose round function optimization that precomputes some values, single plaintext optimization and two plaintext parallel optimization. Since there are no previous research results on SIMECK and SIMON on RISC-V, we compared the performance of implementations with and without precomputation techniques for single plaintext optimization and two plaintext parallel optimization implementations. As a result, the implementations to which the precomputation technique was applied showed a performance improvement of 1% compared to the implementations to which precomputation was not applied.
참고문헌 (14)
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