@misc{cryptoeprint:2007:462, author = {Siamak F Shahandashti and Reihaneh Safavi-Naini}, title = {Construction of Universal Designated-Verifier Signatures and Identity-Based Signatures from Standard Signatures}, howpublished = {Cryptology ePrint Archive, Report 2007/462}, year = {2007}, url = {http://eprint.iacr.org/2007/462}, }