基于双线性映射的可撤销代理权的代理签名

Proxy Signature Scheme with Efficient Proxy Revocation from Bilinear Pairing

1996年Mambo等首先提出了代理签名的概念及相应体制,但迄今为止还没有一种可以及时有效地撤销代理签名权的具体方案。文章提出了一种新的代理签名体制。当原始签名者发现代理签名者不诚实时,该体制可以通过可信中心有效地撤销代理签名者的签名权。另外,该体制基于双线性映射,具有短签名的优点。

In 1996, Mambo et al. first introduced the concept of proxy signature. However, so far there exist no proxy signature schemes which can revoke proxy signers＇ signing capability efficiently. In this paper, we propose a new proxy signature scheme. In this scheme, when an original signer finds that a proxy signer is malicious, he can revoke the malicious proxy signer＇s signing capability efficiently through a trusted authority. Moreover, the new scheme is from bilinear pairing, thus it has the advantages which short signatures have.