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Researchers from Beijing University of Posts and Telecommunications Report on Findings in Information Technology (Certificateless proxy...

July 22, 2014

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 -; Information Sciences -

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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Source: Information Technology Newsweekly

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