玻璃两面重叠手印拍摄机理

根据斯涅尔定律和菲涅尔公式阐述清水衬底法消除玻璃下界面手印或玻纹的影像，以及用偏振光，紫外线拍摄玻面痕迹的方法和机理。     

Binary particle swarm optimization with multiple evolutionary strategies

This paper introduces a novel variation of binary particle swarm optimization(BPSO) algorithm and a further extension to improve its performance.Firstly,mimicking the behaviors of some creatures group,multiple evolutionary strategies BPSO(MBPSO) is introduced which takes different evolutionary strategies for various particles according to their performances.Then,on the basis of MBPSO,a new strategy is discussed to improve the performance of the MBPSO(M2BPSO) which adopts the concept of the mutation operator aiming to overcome the premature convergence and slow convergent speed during the later stages of the optimization.The proposed two algorithms are tested on seven benchmark functions and their results are compared with those obtained by other methods.Experimental results show that our methods outperform the other algorithms.     

一种基于中断处理机制的动态反汇编算法

传统的反汇编是静态进行的,它难以处理逻辑陷阱、花指令、代码中的数据、动态控制流等问题,这就导致其最终的反汇编结果可能不完整,存在错误.一段特意设计的代码,可以用动态控制流替代静态控制流;一段特意设计的花指令,可以让静态控制流关系任意复杂,这都将使静态反汇编分析难以进行.让代码运行起来,动态地进行反汇编,可以解决上述静态反汇编遇到的问题.结合计算机的中断处理机制,使得代码的实际执行路径是可知的.针对实际执行到的计算机指令进行反汇编,确保了反汇编结果的准确性;反复执行代码,在时间上进行积累,可以确保反汇编结果的完整性不断增加并趋于完整.     

Zero-knowledge proofs of retrievability

Proof of retrievability (POR) is a technique for ensuring the integrity of data in outsourced storage services.In this paper,we address the construction of POR protocol on the standard model of interactive proof systems.We propose the first interactive POR scheme to prevent the fraudulence of prover and the leakage of verified data.We also give full proofs of soundness and zero-knowledge properties by constructing a polynomial-time rewindable knowledge extractor under the computational Diffie-Hellman assump...     

网络信息安全问题的法律探析

网络技术的发展以及应用深刻地影响着人类社会,在给人类带来巨大便利的同时也带来了诸如网络信息安全问题等隐患,这不仅在技术层面给我们提出新的问题,在法律层面也提出了更高的要求。本文介绍了对网络信息安全问题进行法理探讨的背景,并且在分析了国内外研究现状的基础上提出在法律层面解决网络信息安全问题的初步构想。     

试用社会解体理论分析网络犯罪的成因及对策

目前,网络的发展极大推动了人类文明的进步,网络犯罪问题也络绎不绝的出现,而且呈现出平民化、反社会化、加速化、恶性化的特点,因此越来越成为社会关注的重点问题。网络犯罪作为新世纪各国共同面临的社会问题,理应也从社会学角度出发进行研究分析,本文试图应用社会解体理论,从网络犯罪所处的＂虚拟社会＂出发,探究其形成的原因,并提出相应的对策。     

从“人肉搜索”看隐私权与言论自由的冲突与协调

本文从人肉搜索这一现象入手,阐释网络言论自由的现状与特点,通过人肉搜索第一案解析公民隐私权面对人肉搜索时的危机,在最后试图给出平衡网络言论自由与公民隐私权的建议。     

A property-based attestation protocol for TCM

This paper presents a property attestation protocol for the security chip TCM (trusted cryptographic module) via analyzing the problems of the current property attestation, which is built on the property attestation model with the online trust third party. In the protocol the prover utilizes the zero-knowledge proof by the attribute certificates, configuration commitment and TCM signature, and attests its configuration and status which are compliant with the declarative security property. The protocol is ch...     

An efficient ranging method based on Chinese remainder theorem for RIPS measurement

The radio interferometric positioning system(RIPS) measures the phase difference of the interference signal to provide high accuracy and at the same time maintain simple hardware configuration for wireless sensor networks.However, it suffers from phase ambiguity problem because of the periodicity of phase, which makes it hard to determine the actual distance difference only from a single phase measurement.To solve the problem, RIPS makes multiple measurements at different frequencies so as to determine the ...