CAJ | 학술논문

Pang-Liu-Wang方案中的秘密份额由秘密分发者生成,因此需要通过安全信道传送给各参与者,并且在秘密重构过程中,各参与者不能验证其他人提供的伪份额的有效性.针对上述不足,提出一种改进的秘密共享方案.该方案中,各参与者的秘密份额由自己选择,无须秘密分发者向他们传送任何秘密信息,各参与者可以相互验证伪份额的有效性,且只需维护一个秘密份额即可一次共享多个秘密或多次共享秘密.
Pang-Liu-Wang방안중적비밀빈액유비밀분발자생성,인차수요통과안전신도전송급각삼여자,병차재비밀중구과정중,각삼여자불능험증기타인제공적위빈액적유효성.침대상술불족,제출일충개진적비밀공향방안.해방안중,각삼여자적비밀빈액유자기선택,무수비밀분발자향타문전송임하비밀신식,각삼여자가이상호험증위빈액적유효성,차지수유호일개비밀빈액즉가일차공향다개비밀혹다차공향비밀.
In Pang-Liu-Wang scheme, the dealer chooses and delivers secret information to each participant, so a secure channel between them is needed. And in recovery phase, each participant can not check whether another participant provides the true information or not. Aiming at such shortcomings, this paper proposes an improved secret sharing scheme. Each participant selects his secret shadow by himself. Each cooperative participant can check pseudo-shadow others have is true or not. Each participant shares many secrets one time with other participants by holding one shadow even many times.