Researchers from Beijing University of Posts and Telecommunications Report on Findings in Information Technology (Certificateless proxy multi-signature)
By a News Reporter-Staff News Editor at Information Technology Newsweekly -- Investigators discuss new findings in Information Technology. According to news reporting originating in Beijing, People's Republic of China, by VerticalNews journalists, research stated, "Proxy multi-signature allows a group of original signers to delegate their signing capabilities to a proxy signer in such a way that the proxy signer can sign messages on behalf of the group of original signers. Existing constructions of proxy multi-signatures are based on traditional Public Key Infrastructure or Identity-based Public Key Setting, but the former needs certificates which bring about many certificate management problems, and the latter has a drawback of key escrow."
The news reporters obtained a quote from the research from the Beijing University of Posts and Telecommunications, "In contrast to the existing constructions, in this paper, we study proxy multi-signature in Certificateless Public Key Cryptography (CL-PKC) which combines the advantages of both certificate-based and identity-based cryptosystems as it avoids the use of certificates and does not suffer from key escrow. We provide the definition and the security model for Certificateless Proxy Multi-Signature (CLPMS), and propose the first CLPMS scheme which is proved to be secure in the random oracle model under the computational Diffie-Hellman assumption."
According to the news reporters, the research concluded: "Our scheme is computationally efficient and has the property that the size of a proxy multi-signature is independent of the number of the original signers."
For more information on this research see: Certificateless proxy multi-signature. Information Sciences, 2014;276():21-30. Information Sciences can be contacted at: Elsevier Science Inc, 360 Park Ave South, New York, NY 10010-1710, USA. (Elsevier - www.elsevier.com; Information Sciences - www.elsevier.com/wps/product/cws_home/505730)
Our news correspondents report that additional information may be obtained by contacting H.Z. Du, Beijing Univ Posts & Telecommun, State Key Lab Networking & Switching Technol, Beijing 100876, People's Republic of China.
Keywords for this news article include: Asia, Beijing, Information Technology, People's Republic of China
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