高效的可证安全的部分盲签名

部分盲签名通过在最终的签名数据中包含签名者和用户协商一致的公用信息(签名发布日期,电子货币的金额)来扩展了盲签名的概念。该文在随机预言机模型下提出了一个高效的可证安全的部分盲签名方案,该方案利用一个公开可行的算法提前计算出将要在随后的部分盲签名协议中用到的公钥和私钥,因此该方案Okamoto-Schnorr盲签名方案具有相同的安全性,并且不会造成额外的系统开销。

An Efficient Partially Blind Signature with Provable Security

Partially blind signatures allow signers to include some common information (the date of issue, the value of electronic coins) negotiated by signers and users. This paper presents an efficient partially blind signatures scheme with provable security in the random oracle model. Our scheme uses a public algorithm to evolve the public keys and private keys which will be used during the partially blind signatures protocol. In such a manner the scheme has the same security as the underlying blind Okamoto-Schnorr signature without bringing out additional workload.