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	1. A Novel Image-hiding Scheme Based on Quantizing Factor and Matching Factor in DWT
	Xiang Yong,Chen Yong
	Computer Science and Technology 23 November 2009
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	Abstract:A novel image-hiding scheme is proposed in this paper. On the basis of analysing the correlation between the cover-image and the secret-image in DWT, by adjusting quantizing factor and matching factor, the stego-image quality and security of image hiding can be greatly improved. Experimental results show that the stego-image has a high quality , the stego-image is almost the same as the cover-image, and image-hiding scheme has a good robustness.
	TO cite this article:Xiang Yong,Chen Yong. A Novel Image-hiding Scheme Based on Quantizing Factor and Matching Factor in DWT[OL].[23 November 2009] http://en.paper.edu.cn/en_releasepaper/content/36924


	2. Fast Identity-Based Encryption Using Combined Public Keys
	Jiqiang Liu,Sheng Zhong
	Computer Science and Technology 20 March 2009
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	Abstract:Identity-based encryption (IBE) is a very useful tool in cryptography. It has many potential applications. However, existing IBE schemes are signicantly slower than regular public key cryptosystems; thus, they may not be able to meet the need of some applications in practice. In this paper, we propose a simple IBE scheme, using a technique of combined public keys. Our IBE scheme is very fast, having time costs close to those of a regular public key cryptosystem, the ElGamal cryptosystem. We show that our IBE scheme is semantically secure under the Decisional Diffie-Hellman (DDH) Assumption. In addition, we give an identity-based signature scheme using the same technique.
	TO cite this article:Jiqiang Liu,Sheng Zhong. Fast Identity-Based Encryption Using Combined Public Keys[OL].[20 March 2009] http://en.paper.edu.cn/en_releasepaper/content/30527


	3. An Efficient Hardware-based PIR Scheme
	Lan Tian,Qin Zhiguang
	Computer Science and Technology 09 January 2009
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	Abstract:An hwPIR (hardware-based Private Information Retrieval) protocol allows a user to retrieve one of N records from a database without revealing the identity of the record to the database server using a server-side trusted hardware. In this paper, we present a new hwPIR protocol which achieves computation complexity while keeping the same communication overhead. Two N-length memory buffers are used to avoid the most time-consuming process, periodic reshuffle. Although this scheme is not fully secured, we believe it’s secure enough in practice and easy to implement.
	TO cite this article:Lan Tian,Qin Zhiguang. An Efficient Hardware-based PIR Scheme[OL].[ 9 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27584


	4. Binary-Price Proxy Auction Protocol
	Lan Tian,Qin Zhiguang
	Computer Science and Technology 07 January 2009
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	Abstract:The paper presents a distributed 2nd-price proxy auction protocol that doesn’t require bidders to be constantly online after submitting their bid-chains in P2P network. That is, bidders can be offline other than submitting their bid-chains, and other peers in the P2P network conduct the auction process instead. During the whole protocol, bid-chains containing lower prices will be discarded remaining encrypted forms, and only the one containing highest price is left. Compared with other auction protocols, our protocol has properties of sealed-bid along with distributed bid auction, and it allows the bidders to submit their bids asynchronously meanwhile keeps all the losing bids unrevealed even after the auction is resolved.
	TO cite this article:Lan Tian,Qin Zhiguang. Binary-Price Proxy Auction Protocol[OL].[ 7 January 2009] http://en.paper.edu.cn/en_releasepaper/content/27412


	5. A Novel Mechanism in MPLS Network under Adversarial Uncertainty
	Ying Zheng,Hu Hanping
	Computer Science and Technology 04 April 2007
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	Abstract:the advantage of multi-protocol label switching (MPLS) is its capability to route the packets through explicit paths. But the nodes in the paths may be possibly attacked by the adversarial uncertainty . Aiming at this problem in MPLS Network, in this paper, we propose a novel mechanism in MPLS network under adversarial uncertainty, making use of the theory of artificial intelligence, at first, we find the initialized label switching paths(LSPs) using the A* arithmetic, and secondly, during the process of data transmission, we switch the transmission path duly by taking advantage of the non-monotone reasoning mechanism. Compared to the traditional route mechanism ,the experimental results show that it improves the security if data transmission remarkably under our novel mechanism in MPLS network.
	TO cite this article:Ying Zheng,Hu Hanping. A Novel Mechanism in MPLS Network under Adversarial Uncertainty[OL].[ 4 April 2007] http://en.paper.edu.cn/en_releasepaper/content/11928

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