Analysis and Improvement of Separable and Anonymous Identity-based Private Key Issuing Scheme
Nan Li, Pla Information · 2010
Separable and Anonymous identity-based Key Issuing(SAKI) scheme can solve the problems that how to authenticate the user's identity and distribute the user's private key in identity-based cryptography,but it has secure flaws.This paper investigates the secure flaws of SAKI scheme and proposes an improved scheme.Comparison analysis result shows that the improved scheme keeps simplicity and high efficiency of SAKI,and can resist keyword dictionary attack,stolen verifier attack,man-in-middle attack and privacy key integrality attack.