基于双线性对的可撤销代理签名方案
Proxy Signature Scheme with Effective Revocation Using Bilinear Pairings
摘要：
提出了一个基于双线性对的代理签名方案，该方案提供了有效的代理撤销。该方案采用绑定盲化技术，避免了密钥发布阶段的安全信道要求。该方案中，签名者从可信中心接收到部分私钥，并将其解密得到自己的私钥，从而克服了大多数基于配对的代理签名方案中存在的密钥托管问题。该方案满足了代理签名的必要安全性要求，并能抵抗其他可能的威胁。
英文摘要：
We present a proxy signature scheme using bilinear pairings that provides effective proxy revocation. The scheme uses a binding-blinding technique to avoid secure channel requirements in the key issuance stage. With this technique, the signer receives a partial private key from a trusted authority and unblinds it to get his private key, in turn, overcomes the key escrow problem which is a constraint in most of the pairing-based proxy signature schemes. The scheme fulfills the necessary security requirements of proxy signature and resists other possible threats.
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