探讨移动互联网安全风险及端到端的业务安全评估

介绍了移动互联网体系架构及其面临的安全风险,讨论了业务安全评价指标系统,主要指标包括机密性、完整性、可用性、可靠性、保险性和可行性.另外,提出了一种端到端的业务安全评估方法.     

Focus on ethics April 2010 correction.

Reports an error in "Ethical dilemmas in sport psychology: A dialogue on the unique aspects impacting practice" by Amy B. Stapleton, Douglas M. Hankes, Kate F. Hays and William D. Parham (Professional Psychology: Research and Practice, 2010[Apr], Vol 41[2], 143-152). Due to a production error, the name of Amy B. Stapleton was substituted for the name of Jeffrey E. Barnett as the editor. (The following abstract of the original article appeared in record 2010-06890-009.) The multidisciplinary field of applied sport psychology, a specialty area of psychology practice, has been acknowledged as a proficiency area by the American Psychological Association (APA, 2007). This unique discipline often requires the psychologist to work outside the realm of traditional practice. In doing so, sport psychologists frequently encounter unique ethical dilemmas. In an effort to promote awareness and dialogue, this article describes some of the more commonly faced ethical considerations in applied sport psychology. Issues related to developing and maintaining competence in the field, confidentiality, and boundary issues are discussed, and case examples are provided to illustrate the relevant ethical consideration. Subsequently, three applied sport psychology experts respond to the lead article’s discussion and offer poignant reflections on ethical issues presented. In addition, suggestions for successfully resolving ethical dilemmas related to competence, confidentiality, and boundary issues in sport psychology are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Ethical dilemmas in sport psychology: A dialogue on the unique aspects impacting practice.

[Correction Notice: An erratum for this article was reported in Vol 41(3) of Professional Psychology: Research and Practice (see record 2010-11935-001). Due to a production error, the name of Amy B. Stapleton was substituted for the name of Jeffrey E. Barnett as the editor of the Focus on Ethics section in the April issue of Professional Psychology: Research and Practice, 41, 2, 143–152.] The multidisciplinary field of applied sport psychology, a specialty area of psychology practice, has been acknowledged as a proficiency area by the American Psychological Association (APA, 2007). This unique discipline often requires the psychologist to work outside the realm of traditional practice. In doing so, sport psychologists frequently encounter unique ethical dilemmas. In an effort to promote awareness and dialogue, this article describes some of the more commonly faced ethical considerations in applied sport psychology. Issues related to developing and maintaining competence in the field, confidentiality, and boundary issues are discussed, and case examples are provided to illustrate the relevant ethical consideration. Subsequently, three applied sport psychology experts respond to the lead article’s discussion and offer poignant reflections on ethical issues presented. In addition, suggestions for successfully resolving ethical dilemmas related to competence, confidentiality, and boundary issues in sport psychology are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

一种适于云存储的数据确定性删除方法

 为保护云存储模式下数据的机密性,本文提出了一种适于云存储系统的数据确定性删除方法.该方法通过密钥派生树组织管理密钥,将密钥经秘密共享方案处理后分发到DHT网络中,利用DHT网络的动态特性实现密钥的定期删除,使得在非授权时间内密文数据不能被解密和访问,从而实现云存储系统中数据的确定性删除.实验结果表明,该方法能够有效地删除密钥,且性能开销低,满足云存储系统中过期数据或备份文件的确定性删除要求.     

一种改进的预编码跳码扩频通信技术

为了提高现有预编码跳码直扩通信系统的抗干扰能力、通信保密性和反侦察能力,采用增加一个n级移位寄存器的方法,使跳码图案变换时间随信号码元跳变。通过研究分析,新系统在抗干扰、同步、反侦察以及保密性能等方面都有一定的改进。     

军队保密文化研究的价值探析

研究军队保密文化的根本目的是全面提高战斗力,有效履行中国军队的新使命。以科学发展观为指导,采用理论与实践相结合的方法,深刻洞察新军事变革的本质特点,彰显保密文化的生命力、牵引力、推动力、免疫力和保障力,加速推动军事文化创新发展,科学指导军队保密实践活动,是军队保密文化研究的价值所在。中国军队应加速军队保密文化建设,全面开展对军队保密文化的系统研究,充分释放保密文化的巨大潜能。     

基于Windows的虚拟专用网安全机制的设计和实现

介绍了已经实现的一个基于IPSec协议的虚拟专用网。它已经成功地嵌入到当前流行的Windows操作系统中。本文主要讨论了虚拟专用网的需求，系统的体系结构，系统的功能及其采用的关键技术，其中系统的安全机制的设计与实现是本文重点。     

A Data Assured Deletion Scheme in Cloud Storage

In order to provide a practicable solution to data confidentiality in cloud storage service, a data assured deletion scheme, which achieves the fine grained access control, hopping and sniffing attacks resistance, data dynamics and deduplication, is proposed. In our scheme, data blocks are encrypted by a two-level encryption approach, in which the control keys are generated from a key derivation tree, encrypted by an All-Or- Nothing algorithm and then distributed into DHT network after being partitioned by secret sharing. This guarantees that only authorized users can recover the control keys and then decrypt the outsourced data in an owner- specified data lifetime. Besides confidentiality, data dynamics and deduplication are also achieved separately by adjustment of key derivation tree and convergent encryption. The analysis and experimental results show that our scheme can satisfy its security goal and perform the assured deletion with low cost.     

对两个基于身份签密方案的分析与攻击

2010年,Jin等人和Zhang在标准模型下分别设计了一个基于身份的签密方案,并且声称在标准模型下满足IND—CCA的保密安全性和EUF—CMA的不可伪造安全性。通过对这两个方案的安全性进行详细的分析,发现它们并不满足其所声称的安全强度。在严格的签密定义和安全模型下,明确地给出了对这两个方案的实际有效的攻击。最后,进一步分析和总结了这两个方案在其他常用的安全定义下的安全强度。     

The impact of extratherapeutic encounters: Individual reactions to both hypothetical and actual incidental contact with the therapist.

Participants (N = 763) responded to a hypothetical scenario in which they imagined encountering their therapist outside of the therapy setting. The intimacy of the setting (i.e., anonymous vs. intimate encounter) and the perceived success of the therapy (i.e., helpful vs. unhelpful) were manipulated between subjects. Based on a principal components analysis of participant reactions to these hypothetical scenarios, 4 subscales were derived: “Acknowledgement,” “Violation of Expectations,” “Awkwardness and Discomfort,” and “Professional Responsibility.” Results indicate that reactions to the hypothetical encounter on these subscales were related to both the setting and the success of therapy. In general, participants indicated that they preferred acknowledgment from their therapists, especially in less intimate settings. However, Asian Americans, in contrast to European Americans, indicated less desire for acknowledgment and greater perceived expectation violations. Implications for psychotherapy process and training of clinicians are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)