弹性泄露密码学是当前密码学研究的热点.给出一个弹性泄露签名的定义,该定义是标准签名定义的一个扩展.构造一个有界恢复模型下的弹性泄露签名方案,并在标准模型下证明了它的安全性.本文的方案基于双线性配对的弹性泄露签名,结合了一次签名和Waters签名的特,通过改进,长度可大大缩短,克服了一次签名签名长度过长的缺点,具有较好的实用价值. Elastic leakage cryptography is the hot point of the current cryptology research.A definition of elastic leakage signature is given, which is an extension of the standard signature definition.A flexible leakage signature scheme is constructed under a bounded recovery model and proved under the standard model Its scheme is based on bilinear pairing elastic leak signature, which combines the one-time signature and the Waters signature, which can be greatly improved by shortening the length and shortening the length of a signature signature, Good practical value.