Read e-book online Advances in Computer Science and Information Technology: PDF

By Nurzaini Mohamad Zain, Ganthan Narayana Samy, Rabiah Ahmad, Zuraini Ismail (auth.), Tai-hoon Kim, Hojjat Adeli (eds.)

ISBN-10: 3642135773

ISBN-13: 9783642135774

Advanced technological know-how and expertise, complex verbal exchange and Networking, info safety and insurance, Ubiquitous Computing and Multimedia Appli- tions are meetings that allure many educational and pros. The objective of those co-located meetings is to assemble researchers from academia and in addition to practitioners to proportion rules, difficulties and options in terms of the multifaceted points of complex technological know-how and expertise, complicated communique and networking, details safety and coverage, ubiquitous computing and m- timedia functions. This co-located occasion incorporated the subsequent meetings: AST 2010 (The moment overseas convention on complicated technology and Technology), ACN 2010 (The moment overseas convention on complex communique and Networking), ISA 2010 (The 4th foreign convention on details safeguard and coverage) and UCMA 2010 (The 2010 overseas convention on Ubiquitous Computing and Multimedia Applications). we want to precise our gratitude to all the 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 project sooner or later. We recognize the nice attempt of all of the Chairs and the participants of advisory forums and software Committees of the above-listed occasions, who chosen 15% of over 1,000 submissions, following a rigorous peer-review strategy. targeted thank you visit SERSC (Science & Engineering study aid soCiety) for assisting those - positioned conferences.

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Additional resources for Advances in Computer Science and Information Technology: AST/UCMA/ISA/ACN 2010 Conferences, Miyazaki, Japan, June 23-25, 2010. Joint Proceedings

Sample text

Published literatures either aim at providing guidelines for identifying metrics ([3], [4], [5]), without providing indications on how to combine them into quantitative or qualitative indicators that are important for a meaningful understanding of the security posture of an IT component; or target end products ([6]). Our approach: We argue that evaluation of system security assurance only make sense when placed within a risk management context. To reflect this, our method literally takes place after the risk assessment has been completed and the countermeasures deployed.

Define U ⊂ {1, . . , nu }to be the set of indices i such that U[i] = 1. , IDn } be the receiver list and m be a bit string representing a message. , n ) and follows the steps below: j 20 B. Zhang and Q. , nm} be the set of indices j such that m[j] = 1, where m[j] is the jth bit of M ). The resultant ciphertext is σ = (c, σ1 , σ2 , σ3 , σ4 , L). 1 mj , σ3 ) j∈M Analysis of the Scheme Correctness The correctness of the scheme can be directly verified by the following equations. 2 21 Security Theorem 1.

Our proof is based on Waters’ idea such as in [19,20,21]. Setup: Let lu = 2(qE + qS + qU ) and lm = 2qS , D choose randomly (1) Two integers ku and km (0 ≤ ku ≤ nu , 0 ≤ km ≤ nm ). (2) An integer x ∈ Zlu , an nu -dimensional vector X = (xi )(xi ∈ Znu ). (3) An integer z ∈ Zlm , an nm -dimensional vector Z = (zj )(zj ∈ Znm ). (4) Two integers y , ω ∈ Zp , an nu -length vector Y = yi (yi ∈ Zp ) and an nm -length vector W = ωj (ωj ∈ Zp ). For ease of analysis, we define the functions for an identity u and a message m respectively: F (U) = −lu ku + x + K(m) = −lm km + z + i∈U xi and J(U) = y + i∈U yi zj and L(m) = ω + j∈M ωj j∈M Then the challenger assigns a set of public parameters as follows.

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Advances in Computer Science and Information Technology: AST/UCMA/ISA/ACN 2010 Conferences, Miyazaki, Japan, June 23-25, 2010. Joint Proceedings by Nurzaini Mohamad Zain, Ganthan Narayana Samy, Rabiah Ahmad, Zuraini Ismail (auth.), Tai-hoon Kim, Hojjat Adeli (eds.)


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