基于FH-AC系统Portal认证的实现与开发

随着当今移动互联网的快速发展,Wi Fi设备成为人们生活当中不可缺少的组成部分,而传统的无线网络在接入稳定性和安全性方面有待进一步提高。为了解决上述问题,设计了基于FH-AC系统的Portal认证系统。该系统通过对原有Portal协议进行改进并且采用Socket/HTTP通信和CHAP认证技术等一系列技术来提升系统性能,使整个系统在使用过程中能够更快更稳定地接入当前无线网络,其系统安全性也得到进一步的提升。     

基于SIM卡的金融应用移动数字签名业务研究

随着智能终端和移动互联网的快速发展,在网上银行等行业应用中使用移动终端进行用户认证的方式愈发普及.传统的USB key用户认证方式逐渐被基于移动终端的用户认证方式取代.从移动运营商角度出发,研究分析了利用移动终端和SIM卡实现金融类应用用户数字签名认证的技术要求,梳理了基于智能终端和智能卡的安全技术,提出了基于电信智能卡的金融类应用用户签名和身份认证的技术架构和业务流程.     

Comprehensive Review on Application of FTIR Spectroscopy Coupled with Chemometrics for Authentication Analysis of Fats and Oils in the Food Products

Currently, the authentication analysis of edible fats and oils is an emerging issue not only by producers but also by food industries, regulators, and consumers. The adulteration of high quality and expensive edible fats and oils as well as food products containing fats and oils with lower ones are typically motivated by economic reasons. Some analytical methods have been used for authentication analysis of food products, but some of them are complex in sampling preparation and involving sophisticated instruments. Therefore, simple and reliable methods are proposed and developed for these authentication purposes. This review highlighted the comprehensive reports on the application of infrared spectroscopy combined with chemometrics for authentication of fats and oils. New findings of this review included (1) FTIR spectroscopy combined with chemometrics, which has been used to authenticate fats and oils; (2) due to as fingerprint analytical tools, FTIR spectra have emerged as the most reported analytical techniques applied for authentication analysis of fats and oils; (3) the use of chemometrics as analytical data treatment is a must to extract the information from FTIR spectra to be understandable data. Next, the combination of FTIR spectroscopy with chemometrics must be proposed, developed, and standardized for authentication and assuring the quality of fats and oils.     

基于混合加密的融合网络安全认证计费方案

蜂窝网和Ad Hoc网是提供接入服务的重要技术.由于两者互补的特性,融合蜂窝网和Ad Hoc网能提供在热点地区和通信盲区的持续接入.但两者的融合涉及到许多问题.针对安全问题,在Ad Hoc辅助式的融合网络模型上提出一种基于混合加密的安全认证计费方案.此方案使用对称加密和非对称加密的混合加密机制,另外还采用了散列函数和数字签名技术.安全分析表明所提方案可以防止扮演攻击、重播攻击和中间人攻击,并具有反拒认特性.     

EPON系统的认证和加密技术研究

本文系统地介绍了当前光纤到户(FTTH)的主流实现方案--基于以太无源光网络(EPON)的认证和安全保密技术.特别是针对EPON系统自身的安全隐患及解决方案进行了比较,并对当前设备提供商的解决方案做了介绍.     

一种基于身份的多信任域网格认证模型

分析了现有的网格认证框架中存在的问题,提出了一种基于身份的多信任域网格认证模型.该模型以基于身份的PKI为基础,避免了基于传统PKI的认证框架的诸多缺点.同时,该模型提供了跨信任域的双向实体认证功能.模拟试验表明,该认证模型比基于传统PKI的认证框架更轻量、更高效.而且由于该模型可以在多信任域的环境下工作,故而比W Mao提出的只能在单一信任域中工作的认证框架更符合网格认证的实际需要.     

我国油料产品品质的近红外光谱快速检测技术研究进展

近红外光谱技术是一种快速无损检测技术,具有操作简单、检测成本低、无需化学试剂、绿色环保,以及可实现多品质参数同步检测等优点。该文综述了我国油料和食用植物油品质的近红外光谱速测技术研究进展,包括油料含油量、粗蛋白含量、脂肪酸含量等品质指标,食用油的理化指标,以及脂肪酸和食用油的真实性鉴别,并对油料产品品质的近红外光谱速测技术的发展前景进行了展望。     

Electrospray ionization mass spectrometry and partial least squares discriminant analysis applied to the quality control of olive oil

Direct infusion electrospray ionization mass spectrometry in the positive ion mode [ESI(+)‐MS] is used to obtain fingerprints of aqueous–methanolic extracts of two types of olive oils, extra virgin (EV) and ordinary (OR), as well as of samples of EV olive oil adulterated by the addition of OR olive oil and other edible oils: corn (CO), sunflower (SF), soybean (SO) and canola (CA). The MS data is treated by the partial least squares discriminant analysis (PLS‐DA) protocol aiming at discriminating the above‐mentioned classes formed by the genuine olive oils, EV (1) and OR (2), as well as the EV adulterated samples, i.e. EV/SO (3), EV/CO (4), EV/SF (5), EV/CA (6) and EV/OR (7). The PLS‐DA model employed is built with 190 and 70 samples for the training and test sets, respectively. For all classes (1–7), EV and OR olive oils as well as the adulterated samples (in a proportion varying from 0.5 to 20.0% w/w) are properly classified. The developed methodology required no ions identification and demonstrated to be fast, as each measurement lasted about 3 min including the extraction step and MS analysis, and reliable, because high sensitivities (rate of true positives) and specificities (rate of true negatives) were achieved. Finally, it can be envisaged that this approach has potential to be applied in quality control of EV olive oils. Copyright © 2013 John Wiley & Sons, Ltd.     

RO PUF硬件物理指纹性能评估

入网设备的身份认证是工业互联网、物联网安全运行的基础.通过分析物理不可克隆函数(Physical Unclonable Function,PUF)作为入网设备的身份凭据应具有的特性,建立了其性能的多层指标体系.按照性能指标的重要性分为必要指标、重要指标和应用指标,对每项指标及其评估方法进行了说明,并给出了可用于PUF选...     

A new modified remote user authentication scheme using smart cards

In 2000, a remote user authentication scheme using smart cards was proposed and the masquerade attacks were proved successful on this scheme. Recently, Kumar has suggested the idea of check digits to overcome the above attacks with a new scheme that removes these threats well. In this paper it is pointed out that the weakness still exists in Kumar＇s scheme, and the intruder can login to the remote system through having some information. A new scheme which can overcome these attacks and appears more secure and efficient than Kumar＇s is presented.