一种新型的基于身份的高效盲签名

Efficient Identity-Based Blind Signature Scheme

近年来椭圆曲线和超椭圆曲线上的双线性对,比如Weil对和Tate对,在密码学上的应用受到了广泛的关注.用椭圆曲线或超椭圆曲线上的双线性对,提出了一些基于身份的密码系统.该文基于双线性对提出了一种新型高效的基于身份的盲签名方案,该方案用以身份为基础的公钥取代数字证书形式的公钥,省略了验证签名时从系统中提取公钥的步骤,提高了系统效率,并节省了存储空间.同时还分析了该方案的安全性和效率.

Recently, use of bilinear pairing such as Weil pairing or Tate pairing on elliptic and hyperelliptic curves in cryptography has attracted considerable attention. Several identity-based cryptosystems using bilinear pairings of elliptic or hyperelliptic curves have been presented. This paper proposes a new efficient identity- based blind signature scheme based on the bilinear pairings. The scheme uses identity-based public key instead of digital certification public key. It can omit the process of getting the public key from the system in verifying phase, improve efficiency of the system and reduce the storage space, and also analyze its security and efficiency.