After studying the proposed ring signature schemes, a provably secure short ring signature based on one-way accumulator is proposed, which is also used to construct multi-party concurrent signatures. 在对已有环签名方案进行了系统研究的基础上,采用单向累加器技术提出了可证安全的简短环签名方案,并将其用于构造高效的多方同时生效签名协议。