用WSE 3.0实现Web服务安全中的签名与加密

签名和加密是实现Web服务安全中的常用技术.Web服务安全开发工具包WSE 3.0的推出,为Web Services安全问题提供了新的解决方案.本文给出了用WSE 3.0实现部分签名和加密的具体过程,具有广泛的实用性.     

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在全面回顾我国综合交通信息平台发展历程，分析总结其发展现状和存在问题的基础上，针对各地信息平台建设表现出的差异性，指出目前出现的差异性属于在信息平台统一的功能定位之下，同一事物不同发展过程中和不同发展阶段下的不同表现形态。具体分析了信息平台统一的功能定位；提出了三种适合我国当前不同情况的可行的信息平台发展模式：政府行为型、政府建设-企业运营型、政府引导-企业运作型，从建设模式、运行模式、服务模式和可持续发展模式等方面分别介绍了三种发展模式，并对比分析了三种发展模式的适用性。     

紧急事件智能通知系统在北京地铁中的应用

介绍北京地铁紧急事件通知系统的组成,分析其存在的重要性并给出解决方案,探讨紧急事件通知系统在北京地铁的应用与发展.     

国内信息

交通部开展防船舶碰撞防泄漏专项整治活动“回头看”,交通部做好2008年春节节后旅客运输工作,交通部表彰全国交通行业抗灾保通先进集体先进个人,交通部表彰2006至2007年度全国交通行业精神文明建设先进集体先进个人     

呼和浩特局集团公司货运安全信息分析系统设计探讨

在铁路货运安全信息管理的过程中,存在信息来源分散、信息共享程度低、风险类别多样等问题,为充分体现安全信息分析的前瞻性、预见性、针对性,在阐述呼和浩特局集团公司货运安全信息分析工作现状的基础上,针对存在的问题对货运安全信息分析系统架构进行设计,以实现货运安全信息分析系统功能,即:图形化显示、风险分级管控、安全信息的集中管理、综合运用等功能,实现对货运安全信息的全方位、全过程管理,形成调查分析、追踪整改、巩固提高、闭环管理的管理局面,提高预警和风险防控的针对性和有效性,提高铁路货运安全管理和监控水平。     

Port investments on coastal and marine disasters prevention: Economic modeling and implications

Located along shorelines, seaports are highly vulnerable to coastal and marine natural disasters largely due to climate change. Damage caused by disasters can be prevented or alleviated if sufficient investments are made in a timely manner. However, despite a wide range of investment options and well-developed engineering expertise, port investment on disaster prevention remains a challenging task involving great complexities. This paper develops an integrated economic model for the analysis of disaster-prevention investments at a “landlord” port. It simultaneously considers the uncertainty of disaster occurrence and associated return of prevention investments, the information accumulation and related investment timing, and the benefit spillovers of investment among stakeholders. Our analysis shows that the timing of port investments depends on the probability of disasters. Immediate investment is optimal for disasters with very high probability, while investment should be postponed if such a probability is very low. Optimal timing for cases of intermediate probability cannot be determined analytically, as it is influenced by other factors such as discount rate, information accumulation and efficiency of investments. Positive spillovers between a port and its tenants lead to under-investment, which can be corrected by coordination between stakeholders. However, since there are risks of “overinvestment” (the marginal benefits of investments are zero ex post if there is no disaster), regulatory intervention is not always optimal when the regulator does not have a good understanding of disaster probability distribution. Therefore, scientific research would bring significant economic and strategic value to policy, planning and investment decisions.     

地铁智慧车站运营指挥系统设计与实现

简要介绍了智慧车站建设中客运管理在组织、联动指挥方面存在的不足,研究和探讨了智慧车站运营指挥系统设计及其实现方案;详细介绍了该系统的结构、实现功能、关键技术和难点;总结了该系统研究对城市轨道交通智慧车站提升客运管理、联动指挥,以及提升车站管理信息化水平的意义。     

From willingness to action: Do push-pull-mooring factors matter for shifting to green transportation?

Motivating individuals to choose green transportation is becoming increasingly important. Based on push-pull-mooring framework, this study aims to explore how push, pull and mooring factors foster individual’s willingness to shift to green transportation. This study also analyzes the role of information provision in narrowing the gap between shifting willingness and behavior. The findings revealed that push factors, including perceived environmental threats and perceived inconvenience, drive individual’s mode-shift away from private cars, whereas the pull factors, including green transport policies and campaigns, and green transport system attract individual’s mode-shift to green transportation. Moreover, the mooring factor, namely inertia, not only negatively affects individual’s shifting willingness but also negatively moderates the effects of push and pull factors on individual’s shifting willingness. In addition, shifting willingness positively affects the shifting behavior and the information provision positively moderates the relationship among them. Such findings are vital to achieve the realization of China’s low-carbon goals.     

智能网联汽车OTA升级安全设计

随着汽车行业快速向智能化、网联化、电动化的方向发展,车载电子器件(ECU)在整车系统中逐渐增多,整车和ECU已经实现从物理方式到软件升级(OTA)的更新迭代。当前针对汽车的黑客攻击事件频发,OTA功能作为智能网联汽车的重要功能,也成为黑客的重点攻击对象。攻击者通过劫持、篡改、替换等攻击方法对智能网联汽车OTA升级链接发起攻击。文章基于当前智能网联汽车OTA升级架构进行安全分析,通过设计安全的OTA升级方案,提升整车OTA升级的安全性。     

信息技术在公路水运工程质量与安全监督管理中的应用

随着信息技术在我省质量与安全监督管理工作中应用,监督工作内容和方式也发生了深刻的变化,省质监管理信息系统实现了全业务上网、流程化管理,具有业务模块集成度高、数据共享能力、用户交互性好、权限层级管理、数据安全等特点,成为促进我省公路水运工程质量与安全监督管理规范化、合理化和制度化的重要手段.