Cryptanalysis and Improvement of a Threshold Signature Scheme
Xiuyuan Yu · 2012
In 2008,Xie et al.proposed a new threshold signature scheme based on modular secret sharing,which means secret sharing can be achieved by Chinese remainder theorem.The paper indicated that their scheme is insecure.Any t signers who conspire with DC can forge a valid threshold signature and frame others,and any less than t individuals who conspire with DC also can forge a valid threshold signature.To overcome the security weakness,the paper provided a modified scheme.