Secure multiparty quantum summation
Du Jian-Zhong, Xiu‐Bo Chen, Wen Qiao-yan, Zhu Fu-Chen, (1)北京邮电大学理学院,北京 100876; (2)北京邮电大学理学院,北京 100876；北京科技大学信息工程学院，北京 100083；西安电子科技大学综合业务网国家重点实验室,西安 710071; (3)现代通信国家重点实验室,成都 610041 · Acta Physica Sinica · 2007
A novel scheme of secure quantum addition module n+1(n≥2) is proposed, based on non-orthogonal states, which allows a number to be added to an unknown number secretly. A proposed protocol for secure n-parity quantum summation is quasisecure to Eve. The collusive attack performed by n-1 legitimate participators cannot eavesdrop all the input information of the other participator in the protocol.