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为克服基于身份的签名体制中的密钥管理问题,给出一个新的无可信PKG的基于身份的签名方案。在离散对数问题(DLP)和计算Diffie-Hellman问题(CDHP)困难假设下,它可抵抗适应性选择消息和ID攻击的签名存在性伪造。
To overcome the problem of key management in ID-based signature system, a new untrusted PKG-based signature scheme is proposed. Under the difficult assumption of discrete logarithm problem (DLP) and computational Diffie-Hellman problem (CDHP), it can resist the signature forgery of adaptive choice messages and ID attacks.