Trusted Certified Auditor Using Cryptography for Secure Data Outsourcing and Privacy Preservation in Fog-Enabled VANETs

With the recent technological developments,massive vehicular ad hoc networks(VANETs)have been established,enabling numerous vehicles and their respective Road Side Unit(RSU)components to communicate with oneanother.The best way to enhance traffic flow for vehicles and traffic management departments is to share thedata they receive.There needs to be more protection for the VANET systems.An effective and safe methodof outsourcing is suggested,which reduces computation costs by achieving data security using a homomorphicmapping based on the conjugate operation of matrices.This research proposes a VANET-based data outsourcingsystem to fix the issues.To keep data outsourcing secure,the suggested model takes cryptography models intoaccount.Fog will keep the generated keys for the purpose of vehicle authentication.For controlling and overseeingthe outsourced data while preserving privacy,the suggested approach considers the Trusted Certified Auditor(TCA).Using the secret key,TCA can identify the genuine identity of VANETs when harmful messages aredetected.The proposed model develops a TCA-based unique static vehicle labeling system using cryptography(TCA-USVLC)for secure data outsourcing and privacy preservation in VANETs.The proposed model calculatesthe trust of vehicles in 16 ms for an average of 180 vehicles and achieves 98.6%accuracy for data encryption toprovide security.The proposedmodel achieved 98.5%accuracy in data outsourcing and 98.6%accuracy in privacypreservation in fog-enabled VANETs.Elliptical curve cryptography models can be applied in the future for betterencryption and decryption rates with lightweight cryptography operations.

Auditor Switching and Investors＇ Reliance on Earnings： Evidence From Bursa Malaysia

This study provides some insights of investors＇ view on auditor independence focusing on auditor switching. Hence, the purpose of this study is to examine the effect of appointing a new auditor on investors＇ reliability on reported earnings in financial accounts. Analyses are based on a matched-pair sample of 162 listed companies in the Bursa Malaysia for the year 2011. The results of the ordinary least squares （OLS） regression show that earnings response coefficients for auditor switching companies are significantly higher than for non-auditor switching companies. The results provide support for the contention that investors place greater reliability on the financial accounts audited by newly appointed auditors. This finding is consistent with the Malaysian audit market where long audit tenure is a common practice and auditor switching is considered rare. Findings provide support for the long discussed issue of the importance of auditor rotation in maintaining auditor independence.

Power Auditor数据库审计系统在宁夏电力的应用

随着信息化建设的快速发展,数据库作为信息系统的核心和基础发挥着越来越重要的作用,数据库安全对信息系统的影响越来越大,数据的防篡改及防盗窃问题越来越引起人们的关注。文章根据电力信息化系统数据库审计的特点及实现方式,深入研究基于Power Auditor技术的数据库审计系统,介绍了Power Auditor数据库审计技术在宁夏电力信息系统中的应用,通过应用表明该技术能够有效地与电力信息化系统紧密融合,确保各业务系统数据库的安全可靠;最后,总结了宁夏电力信息系统数据库审计的运维特点。

Auditors＇ Role, Responsibilities, Duties, and AIS to Prevent Errors and Frauds：An Evidence From Lebanon

The paper is about how Lebanese auditors detect fraud in the course of their work and what they advise companies to implement in order to avoid fraudulent acts. For this purpose, various interviews were carded out from different experienced and well-reputed external auditors. This was also for their wide knowledge of all kinds of frauds. Data were taken from primary as well as secondary resources. The paper presents the theoretical and practical aspects. The theoretical part contains the accounting scandals, frauds, auditing processes, and auditor＇s responsibilities and tools for auditors to detect fraud. The practical part consists of case study analysis and detailed research processes.

Auditor Reputation, Audit Opinion, and Eamings Management： Evidence From French Banking Industry

The aim of this research is to study the impact of auditor reputation and audit opinion on earnings management in French banks. This article used a sample of 162 French banks over the period from 2005 to 2012. By using three different tests （loss-avoidance, just-meeting-or-beating prior year＇s earnings, and abnormal loan loss provision）, the findings of this paper show that both high auditor reputation and qualified audit opinion constrain earnings management to avoid loss or to just meet or beat prior year＇s earnings in banks. In separate tests related to earnings management through abnormal loan loss provisions, the paper also finds that high auditor reputation constrains earnings management. Qualified audit opinion has a negative but non-significant effect on abnormal loan loss provisions.

Improvements onthe Earnings Forecast Model——Based on Correlation between Financial Ratio, Auditor Opinion and Future Earnings

This paper aims to find evidence for the improvements on the present earnings forecast models through analyzing the correlation among financial ratios, auditor opinion of listed companies and their future earnings. This paper uses two statistical regression methods including Logistic model and Linear model to examine the inner interaction between financial ratios and future earnings from qualitative and quantitative perspectives respectively. Empirical tests find that financial ratios, especially ROE, can help to predict future earnings. Then we add auditor opinion variable into Logistic model to test whether going concern opinion in the auditor reports can be helpful for earnings forecast. Result shows the degree of optimistic statement of going concern opinion is significantly correlated with future earnings but with the disturbance of earnings management.

Does an Auditor＇s Within-Industry Market Share Still Capture Auditor Industry Expertise in a Mandatory Audit Partner Rotation Regime？

Prior studies commonly use an auditor＇s market share in an industry as a proxy for auditor industry expertise and find that audit quality is positively related to an audit partner＇s within-industry market share in a voluntary audit partner rotation regime where the length of the client-partner relationship is not limited. Mandatory audit partner rotation, however, limits the length of the client-partner relationship and can artificially increase or decrease the market shares of incoming and departing partners, thus making the audit partner＇s within-industry market share an unreliable proxy for auditor industry expertise. Using a sample of banks in Taiwan, we find that audit quality is positively related to an audit partner＇s within-industry market share in the voluntary audit partner rotation regime. However, such a positive relation disappears in the mandatory audit partner rotation regime. Thus, we conclude that mandatory audit partner rotation decouples the link between an audit partner＇s within-industry market share and auditor industry expertise and caution researchers against using an audit partner＇s within-industry market share as a proxy for auditor industry expertise in a mandatory audit partner rotation regime.

Quality in Independent Auditing:A Research on Auditors

The aim of this study is to determine the opinion related to the audit quality of independent auditors in Turkey.For this purpose,a study was carried out on the auditors operating in the TRC 1 region and having an auditor certificate.Questionnaire method was used in the research.In the evaluation of the data,frequency,mean,and standard deviation were used as descriptive statistical methods.In addition,t-test and one-way ANOVA test were used to compare the data between independent groups.Research results show no significant difference between the opinions of the independent auditors according to various variables.

Auditor Switching by Corporate Governance： Empirical Analysis From the Listed Company in China

As the most important institutional arrangement in modem corporate, corporate governance is playing an increasingly important role in Chinese market economy, and its effect to auditor change is also being increasingly tapped in recent years. This paper summarizes the reason of auditor switching, especially the elements of corporate governance. Then by selecting the A-share listed companies in China as a sample, the authors use statistical test and logistic regression analysis to explore how the 15 factors of corporate governance which are based on the indicators of Nankai University evaluation system affect auditor switching. The results show that the largest proportion of shareholding, the proportion of independent directors, and board meetings which on behalf of the level of corporate governance, have a significant and negative correlation with auditor switching. The results also show that full disclosure, litigation, and arbitration which on behave of the level of corporate governance have a significant positive correlation with auditor switching.

The Role of External Auditor in Protecting the Financial Information Listed in the Financial Statements in the Jordanian Industrial Companies

This study aims to know the role of external auditor in protecting the financial information listed in the financial statements in the Jordanian industrial companies. The sample of this study consisted of 70 auditors who work for Jordanian industrial companies, whereas a questionnaire survey was designed and distributed to them. A total of 68 questionnaires were received that are valid for statistical analysis accounting for 97% of the overall distributed questiormaires; and the questionnaires have been analyzed using SPSS statistical software. The results of the study revealed that the external auditor uses the information technology in examining the financial information listed in the financial statements. Also, it was found that the external auditor is keen to ensure the credibility of the financial statements of the company. The study recommended the external auditor in the Jordanian industrial companies to be more interested in updating the company＇s electronic financial system.

The Impact of Auditor Quality on Audit Quality--Evidence from China Based on Data from 2014-2016

This paper studies the impact of auditors'own quality on audit quality.Through the test of relevant models,it is necessary to find out whether the conclusions of predecessors have practical significance in improving the quality of auditing as time goes by and other relevant influencing factors of the market.The paper collects relevant data from multiple dimensions such as the age level of the auditors,the accumulation of audit experience,and the level of education by collecting the relevant data of the 2016 A-share listed companies and the top 100 CPA firms in 2014-2016.An empirical test was conducted.According to the results of the empirical test,the discussion and research will be carried out,and further opinions and suggestions on how to improve the quality of the auditor should be put forward.The innovation of the research is that the level of earnings management is used as a measure of audit quality,and non-recurring gains and losses are used as explanatory variables.On the basis of previous studies,time and environmental institutional variables were further introduced for further verification.

The Empirical Research on Auditor Independence and Mandatory Auditor Rotation

Using, the method of correlation coefficient, this paper discusses the empirical relationship between audit tenure and audit opinion in annual reports in China A-share market and period of mandatory rotation of auditor. The research finds that the negative correlation between auditor tenure and non-standard unqualified audit opinion is statistically significant, and auditor tenure might impair his/her independence. To enhance auditor independence and improve audit quality, it is necessary to rotate mandatory auditor. The results also fred that consecutive auditing years should not exceed 5 years when the existing auditor has been the auditor of listed company, and mandatory rotation of auditor adapts to the rotation of CPA firms in charge of a client.

会唱歌的工艺品——世霸Cremona Auditor音箱

意大利情结。笔者有不少外国朋友，其中大部分都来自欧洲，在与他们的交往中我发现一个有趣的现象，这些朋友无论来自音响大国英国，还是来自Hi—end重镇丹麦，对发烧音响的了解都可谓乏善可陈。不过意外的是，来自意大利的两位朋友却对本国的几个音响品牌颇为了解，Sonus Faber(世霸)、Chario(卓丽)和胆机贵族Uision均如数家珍，还顺带纠正了我对Chario的发音(应念作“夏里欧”)，这让我颇为惊讶：是不是意大利人比其它西方国家要更发烧一些呢?

The Relationship between Non-audit Services and Auditor Independence: Evidence from Chinese Listed Companies

The rapid development of non-audit services(NAS)has jeopardized the independence of auditors,which has led many Western countries to enact regulations that restrict the provision of NAS.While in China,NAS have just emerged,and its development in China is far less mature than in Western countries.The purpose of this paper is to explore whether NAS in China have damaged auditor independence and whether Chinese regulators need to emulate Western countries and strongly limit the provision of NAS.In order to achieve this objective,213 Chinese listed companies are selected in this study.The audit opinions issued by the auditors are used as substitute variables for auditor independence(dependent variables),and the ratio of non-audit service fees to the total of audit service fees and non-audit service fees as a substitute variable for the provision of NAS(independent variable),and meanwhile some suitable control variables are also selected.Analyse these data by building a binary logistic regression model.The results show that there is no evidence in China that NAS can undermine auditor independence and there is no need for China to enact regulations to prohibit the provision of NAS.

Do investors care about auditor assignments?Evidence from last-minute changes to signing auditors

Against the background of China’s strengthening of finance and accounting supervision,this study examines the practice among listed companies of changing signing auditors at the last minute and explores whether Chinese investors can capture this information in a timely manner.We find that China’s capital market responds significantly negatively to these last-minute changes,implying that investors perceive a potential negative impact of this behavior.Crosssectional analyses suggest that the characteristics of the change event,recent corporate events,and accounting firm capability significantly affect the stock price response.Furthermore,in terms of the individual characteristics of signing auditors,external investors appear to comprehensively consider busyness level,industry experience,and the timing of the change to determine the causes and effects of the auditor change and make different market reactions accordingly.In addition,consistent with investor perceptions,we find that last-minute changes significantly impair the quality of financial statements,indicating that external investors’judgments based on information about changes in signing auditors are rational and effective.

Voluntary resignation of independent directors and auditor responses:Empirical evidence from Chinese A-share listed firms

We examine auditor responses to the voluntary resignation of independent directors.We show that auditors respond by increasing audit fees or rescinding engagement with their clients,but not by increasing their audit effort.Mechanism tests reveal that independent directors’voluntary resignation leads to increased regulatory sanctions and negative media coverage,these relationships are more pronounced after the New Securities Law.Auditor response strategies follow an order of priority:at an acceptable level of perceived risk,auditors increase audit fees;when perceived risk exceeds this level,auditors will discontinue the client relationship.Auditors associate greater risk with firms that have(vs.have not)experienced consecutive voluntary resignations by independent directors.Mandatory resignation has no such effect.

Auditor human capital and financial misstatement:Evidence from China

In this study, we examine whether education, as an important component of the human capital of auditors, is related to the occurrence of financial misstatement, and investigate the moderating effect of professional experience. Using a sample of 16,651 firm-year observations from the Chinese stock market from2003 to 2014, we find that the education level of signing auditors is significantly negatively associated with the likelihood of financial misstatement, which suggests that higher education can enhance the ethics and independence of auditors and mitigate the risk of financial misstatement. In addition, professional experience attenuates the negative relation between the education level of signing auditors and financial misstatement. Our findings are also robust to a variety of sensitivity tests, and our conclusions still hold after using a two-stage OLS-logistic regression to address the endogeneity problem. Lastly, the negative effect of education level on financial misstatement holds only for 985 Project universities, low individual-level(audit-firm-level) client importance, and state-owned enterprises.

Do supply shocks in the audit partner labor market affect auditor choice?Evidence from a quasi-natural experiment

We examine whether supply shocks in the audit partner labor market induce clients to switch audit partners.We argue that audit partners in their early careers(i.e.,junior partners)charge low audit fees to attract clients,which induces client firms to switch from senior partners to junior partners when there are more junior partners available.Utilizing the Big4 localization policy,we find that Big4 clients are more likely to replace senior auditors with junior auditors to cut costs after the policy.Furthermore,the results are mainly driven by clients who are charged high fees.Our empirical evidence enriches the understanding of auditor choice determinants and informs the ongoing debates surrounding new regulations for Big4 firms in China.

How does auditors' work stress affect audit quality?Empirical evidence from the Chinese stock market

With reference to the Job Demands-Control Model,we empirically examine the effect of auditors' work stress on audit quality using a sample of Chinese A-share listed companies and their signature auditors from 2009 to 2013.The results show that(1) there is generally no pervasive deterioration in audit quality resulting from auditors' work stress;(2) there is a significant negative association between work stress and audit quality in the initial audits of new clients;and(3) the perception of work stress depends on auditors' individual characteristics.Auditors from international audit firms and those in the role of partner respond more strongly to work stress than industry experts.Auditors tend to react more intensively when dealing with state-owned companies.We suggest that audit firms attach more importance to auditors' work stress and rationalize their allocation of audit resources to ensure high audit quality.