Pei-yih Ting and Dream-Ming Huang and Xiao-Wei Huang
A Proxy MultiSignature Scheme with Anonymous Vetoable Delegation
1387 - 1392
2009
3
5
International Journal of Computer and Information Engineering
https://publications.waset.org/pdf/14356
https://publications.waset.org/vol/29
World Academy of Science, Engineering and Technology
Frequently a group of people jointly decide and authorize
a specific person as a representative in some businesspoitical
occasions, e.g., the board of a company authorizes the chief executive
officer to close a multibillion acquisition deal. In this paper, an
integrated proxy multisignature scheme that allows anonymously
vetoable delegation is proposed. This protocol integrates mechanisms
of private veto, distributed proxy key generation, secure transmission
of proxy key, and existentially unforgeable proxy multisignature
scheme. First, a provably secure GuillouQuisquater proxy signature
scheme is presented, then the “zerosharing" protocol is extended
over a composite modulus multiplicative group, and finally the above
two are combined to realize the GQ proxy multisignature with
anonymously vetoable delegation. As a proxy signature scheme, this
protocol protects both the original signers and the proxy signer.
The modular design allows simplified implementation with less
communication overheads and better computation performance than
a general secure multiparty protocol.
Open Science Index 29, 2009