一种基于全同态加密的安全电子投票方案

主要介绍全同态加密技术的基本原理、基于公钥的全同态加密算法的实现,以及利用全同态加密算法,结合云计算、PKI和基于RSA的数据加密与数字签名等技术实现安全电子投票的技术方案,给出了方案的安全性分析。全同态加密在电子投票和云计算等领域有着巨大的应用潜力,该方案有效地解决了电子投票中的匿名性和公开可验证性难题,真正实现了安全、公开、公平和公正的电子投票。     

SOA电子公文交换系统的安全性研究

对SOA在电子公文交换系统中的应用进行了研究。给出了基于SOA的公文交换系统总体构架,研究了用RSA和DES进行数据双重加密的方法、用安全凭证进行身份鉴权的信息格式及其处理过程。给出实例说明了安全技术的良好应用。     

我们需要什么样的教学质量？

观点一：关键是完善投票选举的程序 投票选举本无错，关键是采取切实措施，完善投票选举的程序，确保投票选举的信度和效度。     

现代计算机密码学及其发展前景

随着人们对计算机安全应用的重视,密码学得到了广泛的关注,密码体制中有对称密钥密码和非对称密钥密码两种体制,本文介绍了密码技术的新方向和最新进展,并简要描述了密码学在电子投票选举服务、检测电脑病毒服务等方面的应用。阐述了由于计算机网络及电子通信的普及,密码学将有着广阔的发展前景。     

基于区块链技术的匿名电子投票协议设计

投票选举是集体决议与意见征求的有效方式,电子投票是密码学的研究热点之一。为此,设计一种基于区块链技术与椭圆曲线盲签名以及时间释放加密算法的匿名电子投票协议。该方案采用以太坊作为平台,利用椭圆曲线盲签名密钥长度短、安全等级高的特点,解决了投票系统的匿名性、唯一性等问题。同时利用时间释放加密算法,解决了公平性与保密性问题,保证了基于区块链技术投票系统的安全性。     

基于DES和RSA的数据加密技术与安全电子交易模型

本文分析和比较了DES加密算法和RSA加密算法的优缺点,在综合DES算法和RSA算法优点的基础上进一步提出了一种加密方案.本文还介绍了一种安全电子交易模型-SET,深入剖析了其加密机制,最后得出SET安全分析结论.     

随机预言模型下的RSA公钥密码体制及其快速实现

RSA公钥密码体制是当今最流行的公钥密码体制，在实际应用中由于它的代数性质，攻击者易于积累有效信息，在加密大量消息的情况下加解密速度非常慢，针对这2个缺陷，提出了一种加载随机预言模型的RSA公钥密码体制，运用Rabin-Miller算法检测素数并成功生成2个大素数之后，再运用欧几里德算法在默认公钥的前提下求得私钥，然后运用公钥和私钥进行加密与解密，大大降低了攻击者对信息的积累，提高了加解密的效率，在公钥加密标准和电子商业中被广泛应用。     

网络通信中的基本安全技术

简要介绍了网络安全的基本概念，详细分析了RSA，DES，数据签名，报鉴别码，密钥交换和管理等数据安全技术。     

投票选举优秀可行吗?

观点一:关键是完善投票选举的程序投票选举本无错,关键是采取切实措施,完善投票选举的程序,确保投票选举的信度和效度。不可否认,投票选举是民主化的一种重要途径,大到国家领导人的选举,小到单位优秀人选的产生,无不走民主推荐的程序,而民主推荐最重要的程序就是投票选举。可以说,投票选举是目前反映民情、民意,真正让人民群众当家作主的一种较好办法。只要在实施过程中,强化管理和监督,投票选举的优越性是显而易见的。目前,不少学校在投票选举过程中存在着不公平、不公正的弊端,主要还是认识问题,其中既有学校领导认识不到位的问题,也有学…     

RSA数字签名技术在电子商务中的应用

随着网络的普及,电子商务也得到了快速发展。电子商务在给商家带来平等竞争、高效率、低成本、高质量的环境优势的同时,也不可避免地存在电子商务环境下的网络安全问题。如何建立一个安全、便捷的电子商务应用环境,保证整个商务过程中信息的安全性,使基于互联网的电子交易安全可靠,已经成为电子商务领域重点关注的问题。主要介绍了RSA加密算法在电子商务中的应用,此数字签名技术保证了电子商务交易信息传输的安全性,防止了信息的伪造和欺骗。     

RSA算法的安全参数研究

RSA算法是最著名和可靠的非对称密钥加密算法。本文系统地介绍了RSA公钥密码算法的基本原理及利用RSA算法进行数据加密的过程;对RSA公钥密码算法安全参数的选择进行分析,并探讨了安全参数的选择对RSA公钥密码算法的安全性影响及重要性。     

Marital Conflict,Allostatic Load,and the Development of Children's Fluid Cognitive Performance

Relations between marital conflict, children's respiratory sinus arrhythmia (RSA), and fluid cognitive performance were examined over 3 years to assess allostatic processes. Participants were 251 children reporting on marital conflict, baseline RSA, and RSA reactivity (RSA‐R) to a lab challenge were recorded, and fluid cognitive performance was measured using the Woodcock–Johnson III. A cross‐lagged model showed that higher levels of marital conflict at age 8 predicted weaker RSA‐R at age 9 for children with lower baseline RSA. A growth model showed that lower baseline RSA in conjunction with weaker RSA‐R predicted the slowest development of fluid cognitive performance. Findings suggest that stress may affect development of physiological systems regulating attention, which are tied to the development of fluid cognitive performance.     

高山红景天多糖RSA部分酸水解产物RSA-c的制备和组成分析

从高山红景天（Rhodiola sachalinensis A.Bor)根状茎提取分离出水溶性多糖RSA，经三氯乙酸部分水解后得到RSA－c,IR,PC和GC分析表明；RSA－c是仅由一种单糖GalA组成的同多糖。     

RSA加密算法在网络监听中的应用

信息在网络传输过程中存在被监听的安全隐患,保护信息免受监听技术威胁的常见方法是对信息进行加密,目前最理想的加密算法是RSA算法。文章论述了网络监听原理,检测方法及其防范措施,对RSA算法进行详细地描述并编程实现。通过理论和实验结果分析,RSA算法保证了信息的保密性和完整性,能有效防止信息被监听。     

复发性自然流产患者血清RLX-2,TIMP-1,TIMP-2的表达及其临床诊断价值

目的检测复发性自然流产（RSA）患者血清RLX-2,TIMP1,TIMP2的表达水平,探讨RLX-2,TIMPs在RSA发生过程中的作用机制,及其对RSA的临床诊断价值。方法采用ELISA法对18例RSA患者与18例正常妊娠者不同妊娠期血清RLX-2,TIMP1,TIMP2的表达水平进行检测,采用受试者工作特性曲线对血清RLX-2,TIMP2及RLX-2/TIMP-2比值在RSA临床诊断的价值进行评价。结果血清RLX-2的水平在妊娠呈上升趋势,10～12周达到高峰;实验组血清TIMP-2水平在各妊娠期均高于正常组（P〈0.05）,各妊娠期RLX-2/TIMP-2比值的曲线下面积（AUC）均较RLX-2,TIMP-2高,其最佳拐点为≤0.1（P〈0.000 1）。结论RSA的发生可能与妊娠期RLX-2的分泌不足以及过高的血清TIMP-2浓度有关;妊娠10～12周时RLX-2/TIMP-2比值≤0.1对RSA的临床诊断价值最大。     

改进的RSA实现方法

RSA是目前最重要的公开密钥密码算法之一,但RSA也存在运算代价高、速度较慢等缺点。本文针对这些缺点,提出了改进的RSA实现方法,并得到了很好的应用。     

Mother–Infant Vagal Regulation in the Face-To-Face Still-Face Paradigm Is Moderated by Maternal Sensitivity

Parents' physiological regulation may support infants' regulation. Mothers ( N = 152) and 6-month-old male and female infants were observed in normal and disrupted social interaction. Affect was coded at 1-s intervals and vagal tone measured as respiratory sinus arrhythmia (RSA). Maternal sensitivity was assessed in free play. Mothers and infants showed opposite patterns of RSA change. During disrupted interaction, mothers' RSA increased and infants' decreased, suggesting self-regulation of distress. During reunion, although the typical pattern was for infants to return to baseline levels, infants of sensitive mothers and sensitive mothers both showed a significant decrease in RSA from baseline. Mothers' and infants' physiological responses may be a function of mutual responsiveness.     

Vagal Regulation of Heart Rate in the Prediction of Developmental Outcome for Very Low Birth Weight Preterm Infants

To Investigate heart rate and respiratory sinus arrhythmia (RSA) as markers of developmental outcome, infant ECG and 3 year outcome were assessed in 41 very low birth weight (<1,500 g) infants. Measures of mean hart rate and RSA, and the maturational shifts in their values from 33 to 35 weeks gestational age, were recorded. RSA measures predicted 3 year outcome beyond the effects of birth weight, medical risk, and socio-economic status. Higher RSA was associated with better social skills, whereas greater RSA maturation was associated with better mental processing and gross motor skills. Lower heat rate was associated with better behavior regulation and social skills, whereas greater maturational decreases were associated with better gross motor skills. Dividing the sample into groups of infants with birth weight less than 1,000 g and these with birth weight over 1,000 g, RSE maturation emerged a strong predictor of mental processing, knowledge base and gross motor skills in the former. A measured of joint maturation of RSA and heart rate was associated with better behavior regulation at 3 years, as measured by Child Behavior Checklist and parenting Stress Index scores, for this group. The findings directly respond to the need for physiological variables in the prediction of outcome in high-risk infants.     

Baseline Hypothalamic–Pituitary–Adrenal Axis and Parasympathetic Nervous System Activity Interact to Predict Executive Functions in Low‐Income Children

We examined interactions between baseline hypothalamic–pituitary–adrenal (HPA) axis and parasympathetic nervous system (PNS) activity in relation to executive functions (EF) in a sample (n = 1,005) of children in low wealth, nonurban communities at age 48 months. Salivary cortisol and respiratory sinus arrhythmia (RSA) represented baseline HPA axis and PNS activity, respectively. The interaction between RSA and cortisol predicted EF such that children with either lower RSA and lower cortisol, or higher RSA and higher cortisol had higher EF scores. These findings suggest a potential compensatory relation in which the PNS and HPA axis counterbalance each other to support cognition.     

Gene-environment contributions to the development of infant vagal reactivity: the interaction of dopamine and maternal sensitivity

This study investigated dopamine receptor genes (DRD2 and DRD4) and maternal sensitivity as predictors of infant respiratory sinus arrhythmia (RSA) and RSA reactivity, purported indices of vagal tone and vagal regulation, in a challenge task at 3, 6, and 12 months in 173 infant-mother dyads. Hierarchical linear modeling (HLM) revealed that at 3 and 6 months, RSA withdrawal in response to maternal separation was greater (suggesting expected physiological regulation) in infants without the DRD2 risk allele than those with the risk allele. At 12 months, infants with the risk allele who were also exposed to maternal sensitivity showed levels of RSA withdrawal comparable to infants who were not at genetic risk. Findings demonstrate the importance of developmental analysis of gene-environment interaction.