단순전력분석에 안전한 Signed Left-to-Right 리코딩 방법
SPA-Resistant Signed Left-to-Right Recoding Method
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참고문헌
초록
본 논문에서는 주어진 기수 표현법을 SPA에 안전하게 리코딩 하는 방법을 제안한다. 제안된 알고리즘들은 기존의 것들과는 달리, Left-to-Right 리코딩이 가능하도록 구성되어져 있기 때문에 최상위 비트부터 스캔하면서 스칼라 곱셈을 계산하는 알고리즘과 연동이 되어 질 경우, 추가 메모리 없이 쉽게 구현된다는 장점이 있다. 따라서 Left-to-Right 리코딩 기법들은 메모리의 제약을 받는 장비인 스마트 카드, 센서 노드에 적합하다.
Abstract
This paper proposed recoding methods for a radix- representation of the secret scalar which are resistant to SPA. Unlike existing recoding method, these recoding methods are left-to-right so they can be interleaved with a left-to-right scalar multiplication, removing the need to store both the scalar and its recoding. Hence, these left-to-right methods are suitable for implementing on memory limited devices such as smart cards and sensor nodes
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