Efficient universal designated verifier signature against delegation attack
Xinxin Niu · Journal of Dalian Maritime University · 2008
An efficient universal designated verifier signature(UDVS) scheme against delegation attack was developed to resolve the delegation attack problem of UDVS scheme.The scheme's security was based on the intractability of q-strong Diffie-Hellman problem.The scheme is proved to be unforgeable,non-transferable and non-delegatable in the random oracle model.Compared with existing schemes, the proposed scheme has obvious advantages in standard signing,public verification,simulation of verifier and designation verification,which needs less pairing computation without using inefficient MapToPoint Hash function.