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| 1 | New efficient searchable encryption schemes from bilinear pairings 显示文摘 | Gu Chunxiang Zhu Yuefei | 2010 | International Journal of Network Security2010，10，1： | 1 |
| 2 | Scalable Cu(Ⅱ)-mediated intramolecular dehydrogenative phenol-phenol coupling:Concise synthesis of enantiopure axially chiral homo-and hetero-diphenols显示文摘An intramolecular dehydrogenative homo-and hetero-coupling of phenols has been successfully developed for quick preparation of enantiopure axial diphenols under mild Cu(Ⅱ)-mediated conditions,using((4 S,5 S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)dimethanol as the chiral auxiliary.The commercially available(R)-α-met hylbenzy la mine was identified as the best amine ligand for Cu(Ⅱ) in the reactions.A variety of homo/hetero bis-dihydroxylbenzoate substrates were examined,affording the corresponding axially chiral diphenols with satis factory to excellent diastereomeric ratios,and a representative scalable preparation was also attempted.A formal synthesis of natural product(+)-deoxyschizandrin has been achieved in this work using one axially chiral diphenol as the synthetic intermediate. | Yuefei Gu Tianyang Wang Ming Gao Zhu-Jun Yao | 2021 | Chinese Chemical Letters2021，32，1： | 0 |
| 3 | A Flaw in the Security Proof of BDOP-PEKS and PEKS-STAT显示文摘Provable security has been widely used for analyzing the security of cryptosystems. Its main idea is to reduce the secu- rity to some well-defined computational assumption. The reduc- tion process is called the security proof. In this paper, we find a flaw in the security proof of BDOP-PEKS and PEKS-STAT, pre- sent a new conclusion for the security of BDOP-PEKS, and give a security proof. The flaw in the security proof of PEKS-STAT can be fixed in the same way. Finally we conclude some steps of secu- rity proof, and emphasize that the probability is as important as the construction. | ZHANG Yajuan ZHU Yuefei GU Chunxiang FU Changchun | 2007 | Wuhan University Journal of Natural Sciences2007，12，1： | 0 |
| 4 | Provable Security of ID-Based Proxy Multi-Signature Schemes显示文摘In the last couple of years, ID-based cryptography has got fruitful achievements. Proxy multi-signature allows a desig- nated person, called a proxy signer, to sign on behalf of two or more original signers. In this paper, we present a general security model for ID-based proxy multi-signature (ID-PMS) schemes. Then, we show how to construct a secure ID-PMS scheme from a secure ID-based signature scheme, and prove that the security of the construction can be reduced to the security of the original ID-based signature scheme. | GU Chunxiang ZHU Yuefei ZHAO Tao | 2007 | Wuhan University Journal of Natural Sciences2007，12，1： | 0 |
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