Journal of the Korea Institute of Information Security & Cryptology (정보보호학회논문지)

Korea Institute of Information Security and Cryptology (한국정보보호학회)
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Refunds Reusable Electronic Check Payment System Using an EC-KCDSA Partially Blind Signature

EC-KCDSA 부분 은닉서명을 이용한 거스름 재사용 가능한 전자수표지불 시스템

  • 이상곤 (동서대학교 인터넷공학부) ;
  • 윤태은 (스마트카드테크놀로지㈜)
  • Published : 2003.02.01
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Abstract

In this paper, a partially blind signature schemes baled on EC-KCDSA is proposed and we applied it to design an electronic check payment system. Because the proposed partially blind signature scheme uses elliptic curve cryptosystem, it has better performance than any existing schems using RSA cryptosystem. When issuing a refund check, one-time pad secret key is used between the bank and the customer to set up secure channel. So the symmetric key management is not required.

본 논문에서는 타원곡선을 이용한 확인서 기반 전자서명 알고리즘(EC-KCDSA : Elliptic Curve - KCDSA)을 기반으로 한 부분 은닉서명 기법을 제안하고, 이를 이용하여 거스름 재사용 가능한 전자수표지불 시스템을 설계한다. 본 논문에서 제안한 부분 은닉서명은 타원곡선 시스템을 사용함으로서 RSA를 사용한 기존 기법보다 향상된 성능을 가진다. 따라서 본 논문에서 제안하는 거스름 재사용 가능한 전자수표지불 시스템은 기존의 것보다 효율적이다. 거스름수표 발급 시 은행과 고객사이는 데이터 교환을 위하여 일회성 비밀키를 사용하므로 대칭 키 관리가 필요 없다.

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References

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