Auditing the changes to a database is critical for identifying malicious behavior, maintaining data quality, and improving system performance. But an accurate audit log is a historical record of the past that can also pose a serious threat to privacy. Policies which limit data retention conflict with the goal of accurate auditing, and data owners have to carefully balance the need for policy co...

As the cloud computing technology develops during the last decade, outsourcing data to cloud service for storage becomes an attractive trend, which benefits in sparing efforts on heavy data maintenance and management. Nevertheless, since the outsourced cloud storage is not fully trustworthy, it raises security concerns on how to realize data de-duplication in cloud while achieving integrity aud...

In this paper, we tend to propose a completely unique privacy-preserving mechanism that supports public auditing on shared information hold on within the cloud. Particularly, we tend to exploit ring signatures to cipher verification data required to audit the correctness of shared information. With our mechanism, the identity of the signer on every block in shared information is unbroken person...

Data integrity is extremely important for cloud based storage services, where cloud users no longer have physical possession of their outsourced files. A number of data auditing mechanisms have been proposed to solve this problem. However, how to update a cloud user's private auditing key (as well as the authenticators those keys are associated with) without the user's re-possession of the data...

Many Peer-to-Peer Distributed Virtual Environments (P2P DVE’s) have been proposed, but none are widely deployed. One significant barrier to deployment is lack of security. This paper presents Carbon, a trusted auditing system for P2P DVE’s which provides reasonable security with low per-client overhead. DVE’s using Carbon perform offline auditing to evaluate DVE client correctness. Carbon audit...

Auditing by downstream firms has limited effects on Chinese firms’ adherence to labor standards and other measures of blue collar workers well-being. Auditing does not affect the suppliers’ blue-collar employees’ wages, probability of belonging to a union, or likelihood of working overtime. However, audited firms are more likely to provide rural migrant workers pensions, business medical insura...