Advanced Computer Science and Information Technology: Second - download pdf or read online

By Takafumi Fukunaga (auth.), G. S. Tomar, Ruay-Shiung Chang, Osvaldo Gervasi, Tai-hoon Kim, Samir Kumar Bandyopadhyay (eds.)

ISBN-10: 3642133452

ISBN-13: 9783642133459

ISBN-10: 3642133460

ISBN-13: 9783642133466

Advanced technology and expertise, complex verbal exchange and Networking, details protection and insurance, Ubiquitous Computing and Multimedia Appli- tions are meetings that allure many educational and execs. The aim of those co-located meetings is to compile researchers from academia and in addition to practitioners to proportion principles, difficulties and options when it comes to the multifaceted features of complex technology and know-how, complex conversation and networking, details safeguard and coverage, ubiquitous computing and m- timedia purposes. This co-located occasion integrated the subsequent meetings: AST 2010 (The moment foreign convention on complicated technology and Technology), ACN 2010 (The moment foreign convention on complex conversation and Networking), ISA 2010 (The 4th foreign convention on details safeguard and coverage) and UCMA 2010 (The 2010 foreign convention on Ubiquitous Computing and Multimedia Applications). we want to precise our gratitude to the entire authors of submitted papers and to all attendees, for his or her contributions and participation. We think within the desire for carrying on with this venture sooner or later. We recognize the good attempt of all of the Chairs and the individuals of advisory forums and application Committees of the above-listed occasions, who chosen 15% of over 1,000 submissions, following a rigorous peer-review method. distinctive thank you visit SERSC (Science & Engineering learn aid soCiety) for assisting those - situated conferences.

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Read Online or Download Advanced Computer Science and Information Technology: Second International Conference, AST 2010, Miyazaki, Japan, June 23-25, 2010. Proceedings PDF

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Additional resources for Advanced Computer Science and Information Technology: Second International Conference, AST 2010, Miyazaki, Japan, June 23-25, 2010. Proceedings

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MN −1 ) and a chooser privately chooses σ in [0, N − 1] to retrieve Mσ . A random oracle H : Fq → {0, 1}l is given to all parties. The details of the protocol are as follows. , CN −1 for computing Yi = Ci · Y0−1 for given Y0 . , CN −1 with X to the chooser. The same values are used for all transfers. The sender pre-computes Cix for 1 ≤ i ≤ N − 1. 34 Y. Hwang, H. Chae, and M. Jeon Transfer: Trasfer process consists of following four steps. 1. The chooser computes Yσ = g y for randomly selected y in [1, q − 1].

We bind the established shared key to the identities of the sender and the chooser by using HMQV protocol. The degree of resistance to any active attacks depends on the strength of HMQV. A Variant of Naor-Pinkas OT for More Efficient Authentication 35 In our protocol, a sender and a receiver have public keys A = g a and B = g respectively. For the sake of presentation, we present a basic protocol and improve it progressively. , In this protocol, the sender, A, ˆ chooses σ in [0, N − 1]. Two random oracles H ¯ : MN −1 ).

Correctness: Because the receiver can retrieve Mσ correctly by Kσ=(XAd )y+eb = g (x+da)(y+eb) = (Y B e )x+da = Kσ , this proposed protocol is correct. 2 Efficient Authenticated Oblivious Transfer Protocol Efficiency Improvement. 1 needs more computation of B e for e of length |q|/2 than Naor-Pinkas OT protocol. For m oblivious transfers, the more required cost sums up to m/2 exponentiations since e is different for each transfer. This linearly increasing computational cost makes the basic protocol is not practical.

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Advanced Computer Science and Information Technology: Second International Conference, AST 2010, Miyazaki, Japan, June 23-25, 2010. Proceedings by Takafumi Fukunaga (auth.), G. S. Tomar, Ruay-Shiung Chang, Osvaldo Gervasi, Tai-hoon Kim, Samir Kumar Bandyopadhyay (eds.)


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