The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Proxy Management Protocol for based on Verifier for Efficient Proxy Signature

효율적인 위임서명을 위한 검증자 중심의 위임관리 프로토콜

  • 박세준 (숭실대학교 컴퓨터학과 멀티미디어 연구실) ;
  • 이용준 (숭실대학교 컴퓨터학과 멀티미디어 연구실) ;
  • 오동열 (숭실대학교 컴퓨터학과 멀티미디어 연구실) ;
  • 오해석 (경원대학교 소프트웨어대학)
  • Published : 2006.01.01
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Abstract

Proxy signature schemes based on delegation of warrant are frequently studied in these days. Proxy signature schemes that used in these days have some problems about the security. Especially, it is difficult to prevent misuse of certification and private key. In this thesis, we propose the more stronger security structure by turning the point from original signer with proxy signer to original signer with verifier, and the proposed protocol is more stronger than previous scheme and can be applied to various PKI based application.

실생활에서 권한의 위임을 통한 위임서명 기법들이 최근 많이 연구되고 있다. 그러나 현재 사용되고 있는 위임 서명 기법은 많은 보안상의 문제점을 가지고 있다. 가장 큰 문제점은 인증서와 개인키의 오남용을 막기가 힘들다는 것이다. 본 논문에서는 기존의 원서명자와 위임서명자와의 관점을 원서명자와 검증자와의 관점으로 전환하여 구조적으로 보안이 강화된 위임관리 프로토콜을 제안한다. 제안하는 기법은 기존의 위임서명 기법보다 강력하며 현실적인 PKI 기반 구조를 준용하므로 다양한 응용 환경에 적용할 수 있다.

Keywords

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