Abstract: This paper structures an ID-based threshold proxy signature scheme by using bilinear pairings. It is a short signature. The signers send the signature together with their public keys to the receiver. Then, the receiver can confirm that the signers’ public keys are granted by Private Key Generator(PKG). through the verification. In this case, it avoids requesting signers’ public keys from a third party, thus enhancing the effectiveness. Analysis results show that the scheme not only satisfies security properties, but also has the property of anonymity.
threshold proxy signature,