关键词: 多重签名, 椭圆曲线密码体制, 公钥自证明

Abstract: A new multisignature scheme based on the elliptic curve cryptosystem was developed to solve the lower efficiency and higher resource occupation problems of the existing digitial signature schemes in the digital design environment. The proposed scheme combined the user identity authentication with signature verification through importing the idea of public key self-certified system and precomputation. It could finish the signature verification work in one step without the identity authentication operations, and also without the trusted certification authority server. The analysis and experiment indicated that the proposed scheme could resist the known attacks. It had simple structure, higher efficiency, lower resource occupation and stronger security.

Key words: multi-signature, elliptic curve cryptosystem, public key self-certified, collaborative design