Document Type
Journal Article
Abstract
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on Waters and Kurosawa and Heng's schemes that were proposed in Eurocrypt 2005. The security of our scheme is based on the CDH and the decision linear assumption. Comparing only the part of undeniable signatures, our scheme uses more standard assumptions than the existing undeniable signatures without random oracles due to Laguillamie and Vergnaud.
RIS ID
22126
COinS