Provably Secure Information Hiding via Short Text in Social Networking Tools

Utilizing OnLine Short Text (OLST) in social networking tools such as microblogs, instant messaging platforms, and short message service via smart phones has become a routine in daily life. OLST is appealing for personal covert communication because it can hide information in a very short carrier text, and this concealment is hard to detect due to the diversity of normal traffic. However, designing appropriate schemes confronts several challenges: they need to be provably secure, and their performance needs to maintain high efficiency and handy usability due to the short length of OLST messages. In this paper, we propose a family of customized schemes known as HiMix, HiCod, HiOpt, and HiPhs for text steganography in OLST. These schemes are evaluated in terms of their security and their performance with regard to two metrics that address the particular characteristics of OLST: hiding rate and hiding ease. All proposed schemes are proved to be at least computationally secure, and their performance in terms of hiding rate and hiding ease justifies their applicability in social networking tools that utilize OLST.     

汾河下游防洪工程施工措施

通过对堤防、控导工程施工中各阶段要点的分析,提出了施工质量过程控制的措施。     

Off-line dictionary attack on password-based authenticated key exchange protocols

In 2010,Lee et al proposed two simple and efficient three-party password-authenticated key exchange protocols that had been proven secure in the random oracle model.They argued that the two protocols could resist offline dictionary attacks.Indeed,the provable approach did not provide protection against off-line dictionary attacks.This paper shows that the two protocols are vulnerable to off-line dictionary attacks in the presence of an inside attacker because of an authentication flaw.This study conducts a detailed analysis on the flaw in the protocols and also shows how to eliminate the security flaw.     

缓解住房压力的几点措施

近年来,随着国民经济的进一步增长,房地产市场出现许多不平衡,其中最为严重的是住房供求不平衡。通过分析这种不平衡,从8个方面提出了缓解住房压力的几点措施。     

简论职业化背景下高校辅导员政治素质的优化

辅导员作为大学生思想政治教育的组织者、实施者和指导者,在高校培养社会主义合格建设者和可靠接班人中具有不容忽视的作用;辅导员的政治素质作为个人素质结构中首要的最基本的素质,对大学生成长成才起着重要的、潜移默化的作用。因此,在党和国家提出使高校辅导员成为思想政治教育方面专家的大环境下,如何提高和优化辅导员政治素质的探讨就显得非常必要。     

广东省民办高校图书馆虚拟参考咨询服务的实践与思考

对广东省31所民办高校图书馆的虚拟参考咨询进行了调查,总结了民办高校图书馆常用的虚拟参考咨询方式及虚拟参考咨询存在的问题,提出了民办高校图书馆改进参考咨询的策略。     

浅析图书馆实施一门式服务所面临的挑战及对策

在阐述一门式服务源起的基础上,分析了图书馆采取一门式服务所遇到的各种挑战,提出了相应的对策和措施。     

图书编目审校人员需要的专业技能与心理素质分析

要想成为一名优秀的图书馆文献编目审校,仅仅达到日常工作基本要求远远不够,还需要在实践中长期历练,在学习中积累提升,通过努力不断提高个人的专业技术水平和综合能力,增强心理素质,以适应网络环境下编目工作现代化的需求。     

新时期图书馆读者服务工作初探

介绍了新时期读者服务工作的变化,从坚持"以人为本"的理念、重视馆藏信息资源建设、提高馆员素质、开展特色服务等方面论述了加强读者服务工作的措施。     

高校图书馆中文图书采访质量优化控制

分析了高校图书馆图书采访工作的现状,从多方面探讨了提高中文图书采访质量的措施.