A Password-Authenticated Key Distribution Method Using Threshold PKC

Threshold PKC를 이용한 패스워드 기반 키분배 방식

  • 이영숙 (성균관대학교 정보통신대학원) ;
  • 이영교 (성균관대학교 정보통신공학부) ;
  • 원동호 (성균관대학교 정보통신공학부)
  • Published : 2004.09.01


In this paper we present user authentication and key distribution using threshold PKC(Public Key Cryptosystem), which is secure against the dictionary attack. The n servers hold a t-out-of-n sharing of the dealer's secret key. When the server authenticate a user, at least f of them cooperate they can reconstruct password verifier.


User Authentication