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). In order to solve the problem of key leakage in aggregate signing scheme, an identity-based hash identification system is proposed based on the unrestricted identity-based aggregation scheme to prove its closure Correctness, legality / illicit ciphertext indistinguability, smoothness and universality.Based on this identity-based Hash proof system, combined with random number extractor, an anti-leakage identity-based signature scheme is constructed and the scheme is given The results show that the leakage ratio of identity key can reach 1-o (1).