To tackle the key-exposure problem in signature settings,this paper introduces a new cryptographic primitive named threshold key-insulated signature(TKIS) and proposes a concrete TKIS *** a TKIS system,at least k out ...
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To tackle the key-exposure problem in signature settings,this paper introduces a new cryptographic primitive named threshold key-insulated signature(TKIS) and proposes a concrete TKIS *** a TKIS system,at least k out of n helpers are needed to update a user's temporary private *** the one hand,even if up to k 1 helpers are compromised in addition to the exposure of any of temporary private keys,security of the non-exposed periods is still *** the other hand,even if all the n helpers are compromised,we can still ensure the security of all periods as long as none of temporary private keys is *** with traditional key-insulated signature(KIS) schemes,the proposed TKIS scheme not only greatly enhances the security of the system,but also provides flexibility and efficiency.
Radio frequency identification （RFID） systems suffer many security risks because they use an insecure wireless communication channel between tag and reader. In this paper, we analyze two recently proposed RFID authe...
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Radio frequency identification （RFID） systems suffer many security risks because they use an insecure wireless communication channel between tag and reader. In this paper, we analyze two recently proposed RFID authentication protocols. Both protocols are vulnerable to tag information leakage and untraceability attacks. For the attack on the first protocol, the adversary only needs to eavesdrop on the messages between reader and tag, and then perform an XOR operation. To attack the second protocol successfully, the adversary may execute a series of carefully designed challenges to determine the tag＇s identification.
Aimed to resist the infringement of software services in cloud environment, a software services protection security protocol based on software watermarking in cloud environment was presented. On the consideration of a...
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Aimed to resist the infringement of software services in cloud environment, a software services protection security protocol based on software watermarking in cloud environment was presented. On the consideration of actual needs in cloud computing, the protocol introduced the software watermarking as a service cloud which was responsible for software watermark embedding and extraction. The protocol not only met the basic requirements of software copyright protection, but also gived the detailed strategy to solve the infringement, and hardened the ability of the software watermarking to resist various attacks. The analysis shows that the proposed protocol has higher security.
Color mapping plays a critical role in visualization of time-varying data and also sets a challenge for researchers due to the consistency of mapping and great changes in time-varying data. In order to solve this prob...
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This paper presents a new multi-resolution mesh fitting algorithm, extending the adaptive patch-based fitting scheme where each underlying quadrilateral is recursively subdivided into four sub-patches. In this paper, ...
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This paper presents an efficient method to reconstruct an implicit surface from a point cloud based on adaptive clustering. First, a novel approach, based on a hierarchical clustering tree with variation and normal co...
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After the discussion of field research scientific significance, the system quality of service (QoS), reputation mechanisms and reputation incentive were reviewed respectively. Finally, the issue remains in this area w...
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After the discussion of field research scientific significance, the system quality of service (QoS), reputation mechanisms and reputation incentive were reviewed respectively. Finally, the issue remains in this area were summarized after the overseas research review. After years of study, it has been some progress in the field of E-services reputation mechanism, the problem forced to be resolved are inconsistent definitions of trust, lack of feedback incentive, poor security of trust model, high complexity of trust model to achieve. Therefore, problems such as peer-to-peer (P2P) E-services QoS evaluation model, two-way trust model integrated with QoS and reputation incentives, trust model security, are becoming the focus and main direction of our future work.
Selecting the best views for 3D objects is useful for many applications. However, with the existing methods applied in CAD models, the results neither exhibit the 3D structures of the models fairly nor conform to huma...
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XSS (Cross-Site Scripting) is a major security threat for web applications. Due to lack of source code of web application, fuzz technique has become a popular approach to discover XSS in web application except Webmail...
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The paper presents a new approach to computing the abstract state and a maximum weight heuristic method for finding the shortest counter-example in verification of imperative programs. The strategy is incorporated in ...
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The paper presents a new approach to computing the abstract state and a maximum weight heuristic method for finding the shortest counter-example in verification of imperative programs. The strategy is incorporated in a verification system based on the counterexample-guided abstraction refinement method. The proposed method slashes both the size of the abstract state space and the number of invokes of a decision procedure. A number of benchmarks are employed to evaluate the effectiveness of the approach.
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