| Title | A Group-Oriented Strong Designated Verifier Signature Scheme with Constant-Size Signatures |
| Publication Type | Conference Paper |
| Year of Publication | 2019 |
| Authors | Lin, Han-Yu, Wu, Hong-Ru, Ting, Pei-Yih, Lee, Po-Ting |
| Conference Name | 2019 2nd International Conference on Communication Engineering and Technology (ICCET) |
| Keywords | adaptive chosen-message attacks, bilinear pairings, Computer science, constant-size, constant-size signatures, digital signature, digital signatures, Generators, GO-SDVS scheme, group-oriented, group-oriented strong designated verifier signature scheme, handwriting recognition, nontransferability, Oceans, pubcrawl, Public key, public key cryptography, public key system, random oracle model, Resiliency, Scalability, signature length, signer ambiguity, strong designated verifier |
| Abstract | A strong designated verifier signature (SDVS) scheme only permits an intended verifier to validate the signature by employing his/her private key. Meanwhile, for the sake of signer anonymity, the designated verifier is also able to generate a computationally indistinguishable transcript, which prevents the designated verifier from arbitrarily transferring his conviction to any third party. To extend the applications of conventional SDVS schemes, in this paper, we propose a group-oriented strong designated verifier signature (GO-SDVS) scheme from bilinear pairings. In particular, our scheme allows a group of signers to cooperatively generate a signature for a designated verifier. A significant property of our mechanism is constant-size signatures, i.e., the signature length remains constant when the number of involved signers increases. We also prove that the proposed GO-SDVS scheme is secure against adaptive chosen-message attacks in the random oracle model and fulfills the essential properties of signer ambiguity and non-transferability. |
| DOI | 10.1109/ICCET.2019.8726877 |
| Citation Key | lin_group-oriented_2019 |
A Group-Oriented Strong Designated Verifier Signature Scheme with Constant-Size Signatures