Energy usage increased in tandem with the growth of cloud computing. This proliferation in energy usage has consequently resulted in a humongous increase in the surrounding carbon footprint. Furthermore, the exponential rise of 'data servers' and other infrastructure is driving up energy consumption. As a result, a reduction in energy use will result in a lesser carbon footprint in the surrounding environment. Green-computing in "cloud computing" is the finding and development of energy-saving digital solutions for reducing carbon pollution in the atmosphere. Green Cloud computing intends to accomplish effective processing and computing infrastructure use and reduce energy usage. In this paper, the carbon footprint produced by cloud infrastructures is analyzed and the compelling need for Green cloud computingis suggested. It is critical to ensure that the foreseeable growth of cloud computing is economically sound.

Carbon Footprint Analysis: Need for Green Cloud Computing

To guarantee data security, the data owner needs to check the integrity of data stored remotely in the cloud server with the public auditing technique. However, the auditing result will be invalid if the data have been modified dynamically in the process of data anonymization when sharing data to others with sensitive information. In existing solutions, a data sanitizer is needed to anonymize the data and transform the signature. However, such data sanitizers introduce new security risks, and the static anonymous strategy is not flexible to different application scenarios. Therefore, we propose a new scheme based on redactable signature. In our proposed scheme, the cloud server can transform the signature directly without the additional sanitizer while sharing sensitive data. The signature transformation does not influence the integrity checking of the stored data. The signature not only can be used to authenticate the source of sharing data, but can also be used to check the integrity of the stored data in the cloud. Both the security proof and experimental analysis show that our proposed scheme is secure and more efficient than the existing schemes.

Redactable Signature-Based Public Auditing Scheme With Sensitive Data Sharing for Cloud Storage

AbstractIn cloud computing, there are several security concerns. The security concern may increase due to one of the important techniques of virtualization. Cloud computing is also having several important characteristics which are used for its improvement and to provide several services to its end user. Some of the essential and important characteristics are on-demand self-service, broad network access, rapid elasticity, resource pooling, and measured services. By using these characteristics, cloud computing satisfies the needs of its end users, but the base to these characteristics is the virtualization technique. These observations depict the reason for several attacks and especially DoS and DDoS attacks or brute-force attacks. This article provides detailed information on these characteristics and also provides information about flaws and breaches. The reason is virtualization, which makes cloud computing insecure to use. Several techniques and algorithms are used to improve the cloud computing system, but flaws in their application have been discovered. These algorithms may degrade the quality of cloud computing system and may also makes cloud computing insecure to its end users.KeywordsCloud computingSoftware-defined networkSecuring cloud computingProperties of cloud computing 

A Survey Paper on Characteristics and Technique Used for Enhancement of Cloud Computıng and Their Security Issues

To guarantee data security, the data owner needs to check the integrity of data stored remotely in the cloud server with the public auditing technique. However, the auditing result will be invalid if the data have been modified dynamically in the process of data anonymization when sharing data to others with sensitive information. In existing solutions, a data sanitizer is needed to anonymize the data and transform the signature. However, such data sanitizers introduce new security risks, and the static anonymous strategy is not flexible to different application scenarios. Therefore, we propose a new scheme based on redactable signature. In our proposed scheme, the cloud server can transform the signature directly without the additional sanitizer while sharing sensitive data. The signature transformation does not influence the integrity checking of the stored data. The signature not only can be used to authenticate the source of sharing data, but can also be used to check the integrity of the stored data in the cloud. Both the security proof and experimental analysis show that our proposed scheme is secure and more efficient than the existing schemes. 

Energy usage increased in tandem with the growth of cloud computing. This proliferation in energy usage has consequently resulted in a humongous increase in the surrounding carbon footprint. Furthermore, the exponential rise of 'data servers' and other infrastructure is driving up energy consumption. As a result, a reduction in energy use will result in a lesser carbon footprint in the surrounding environment. Green-computing in "cloud computing" is the finding and development of energy-saving digital solutions for reducing carbon pollution in the atmosphere. Green Cloud computing intends to accomplish effective processing and computing infrastructure use and reduce energy usage. In this paper, the carbon footprint produced by cloud infrastructures is analyzed and the compelling need for Green cloud computingis suggested. It is critical to ensure that the foreseeable growth of cloud computing is economically sound. 

Correctness of data and efficient mechanisms for data security, while transferring the file to and from Cloud, are of paramount importance in today's cloud-centric processing. A mechanism for correctness and efficient transfer of data is proposed in this article. While processing users request data, a set of attributes are defined and checked. States with attributes at different levels are defined to prevent unauthorized access. Security is provided while storing the data using a chunk generation algorithm and verification of chunks using lightweight Third-Party Auditor (TPA). TPA uses digital signatures to verify user's data that are generated by RSA with MD5 algorithms. The metadata file of generated chunks is encrypted using a modified AES algorithm. The proposed method prevents unauthorized users from accessing the data in the cloud environment, in addition to maintaining data integrity. Results of the proposed cloud security model implementation are discussed.

Achieving Cloud Security Using a Third Party Auditor and Preserving Privacy for Shared Data Over a Public Cloud

In the recent days mainly focus on cloud security in different areas. Now a day’s many businesses cloud computing technology is growing at higher level but the main issues is maintaining the security and privacy of confidential data. Cloud stores various types of data for example data sheets, digital media object and it is very important to maintain data security and confidentiality while accessing in cloud environment. Data sharing on cloud need extra approach to secure path for data confidentiality. While sharing resources at distributed level has severe implications when sensitive or privacy-relevant data is concerned. This paper aims to ensure the data security in public or untrusted cloud servers by constructing strong data access control frame work. We propose an encryption-based schemes which provide on a public cloud server. We apply the scheme to provide data access control.

Vitthal Sadashiv Gutte

Papers

Achieving Cloud Security Using a Third Party Auditor and Preserving Privacy for Shared Data Over a Public Cloud

Privacy Assurance with Content Based Access Protocol to Secure Cloud Storage