Study and Improvement of Forward-secure Digital Signature Based on ECC
FU Mao-sheng · Jisuanji gongcheng · 2006
The paper points out that scheme in reference is not forward-secure because it uses constant SK_i~n~(T-i) to sign a message.Although the secret key is forward-secure,the signature isn't forward-secure.This paper presents a new concept of connected-factor,and by which a new forward-secure signature based on ECC is designed,it is not only forward-secure,but also resistant to forging attack,it is suitable in theory and for some practice.