An Efficient and Provably Secure Proxy Signature Scheme
As a concept of delegating signing rights for digital signatures, proxy signature is a well studied subject in cryptography. Proxy signature is an important delegation technique. It plays an important role in auto-office system. In this paper, we give a secure and efficient proxy signature scheme. The security of the scheme is base on the fixed inversion problem of bilinear map. It has the following advantages: simple construction, short size and low computation.
J. H. Zhang et al., "An Efficient and Provably Secure Proxy Signature Scheme", Advanced Materials Research, Vols. 211-212, pp. 876-880, 2011