中文摘要：

为了解决聚合签密方案中存在的密钥泄漏问题,在无限制身份基聚合签密方案的基础上,设计出一个抗身份密钥泄漏所需的身份基哈希证明系统,证明了其解封正确性、合法/非法密文不可区分性、平滑性和普遍性.基于该身份基哈希证明系统,结合随机数提取器,构造了一个抗泄漏的身份基签密方案,并给出了方案的安全证明,结果表明,其身份密钥的泄漏比值可达1-o（1）.

英文摘要：

In order to solve the problem of secret key leakage in aggregate signcryption,an identity-based hash proof system based on unrestricted identity-based aggregate signcryption scheme is constructed,and its correctness of decapsulation,valid/invalid ciphertext indistinguishability,smoothness and universality are also proved. Then,with the randomness extractor,a leakage resilient identity-based aggregate signcryption scheme is constructed,in which the leakage rate of identity-based secret key can be achieved to1-o（ 1）. Finally,the security proof of this leakage resilient scheme is also provided.