One-Verifier Signature Scheme and Its Applications

In the traditional digital signature scheme, anyone can check the validity of a signer's signature. However, in some practical applications, such as e-Voting, e-Health, e-Payment, e-Bidding where the privacy of the signer is required, it is necessary that there is only one responsible person who is able to check the validity of the signer's signature. There exists a few solutions for this problem such as combining the traditional digital signature scheme with an encryption scheme or using the strong designated verifier signature scheme with judgment. In this paper, we propose another solution for this problem, we name one-verifier signature scheme. Compare among three solutions, our proposed solution is the best one in term of efficiency.