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Book Reviews – Resource Optimization and Security for Cloud Services

Book Reviews - Resource Optimization and Security for Cloud Services

This book includes a study of trustworthiness, percentile response time, service availability, and authentication in the networks between users and cloud service providers, and at service stations or sites that may be owned by different service providers. The first part of the book contains an analysis of percentile response time, which is one of the most important SLA (service level agreements) metrics. Effective and accurate numerical solutions for the calculation of the percentile response time in single-class and multi-class queueing networks are obtained. Then, the numerical solution is incorporated in a resource allocation problem. Specifically, the authors present an approach for the resource optimization that minimizes the total cost of computer resources required while preserving a given percentile of the response time. In the second part, the approach is extended to consider trustworthiness, service availability, and the percentile of response time in Web services. These QoS metrics are clearly defined and their quantitative analysis provided. The authors then take into account these QoS metrics in a trust-based resource allocation problem in which a set of cloud computing resources is used by a service provider to host a typical Web services application for single-class customer services and multipleclass customer services respectively. Finally, in the third part of the book a thorough performance evaluation of two notable public key cryptography-based authentication techniques; Public-Key Cross Realm Authentication in Kerberos (PKCROSS) and Public Key Utilizing Tickets for Application Servers (PKTAPP, a.k.a. KX.509/KCA); is given, in terms of computational and communication times. The authors then demonstrate their performance difference using queuing networks. PKTAPP has been proposed to address the scalability issue of PKCROSS. However, their in-depth analysis of these two techniques shows that PKTAPP does not perform better than PKCROSS in a large-scale system. Thus, they propose a new public key cryptography-based group authentication technique. The performance analysis demonstrates that the new technique can scale better than PKCORSS and PKTAPP.

Chapter 1. Introduction
1.1. Motivation
1.2. The problems
1.3. Summary of contributions
1.4. The organization of this book
Chapter 2. Current Approaches for Resource
Optimization and Security
2.1. Service availability
2.2. Trustworthiness
2.3. Performance
2.4. The resource optimization problem subject to an SLA
2.5. Public-key cryptography-based authentication
Chapter 3. Single Class Customers
3.1. The percentile of response time
3.2. A resource optimization problem for service models with single-class customers
3.3. Approaches for the resource optimization
3.4. Numerical validations
3.5. The balanced condition
3.6. Services Performance Modeling and Analysis in a Simple Scenario of Cloud Computing
3.6.1. Overview
3.6.2. A computer service performance model
3.6.3. A numerical validation
3.6.4. Discussions
3.7. Concluding remarks
Chapter 4. Multiple-Class Customers
4.1. The SLA performance metric in the case of multiple class customers
4.2. The resource optimization problem for multiple customer services
4.2.1. Resource optimization problem for multiple class customers
4.3. Approaches for resource optimization
4.3.1. The LSTs of response time distributions for two priority customers
4.3.2. Algorithms for the resource optimization problem
4.4. Numerical validations
4.5. Concluding remarks
Chapter 5. A Trustworthy Service Model
5.1. The trust-based resource optimization problem
5.2. A framework for solving the trust-based resource provisioning problem
5.3. The calculation of SLA metrics
5.3.1. The trustworthiness of resource sites
5.3.2. The percentile response time
5.3.3. The service availability
5.4. An approach for solving the trust-based resource provisioning problem
5.4.1. Single-class customers
5.4.2. Multiple priority customers
5.5. Numerical examples
5.5.1. Single-class customers
5.5.2. Multiple priority customers
5.6. Concluding remarks
Chapter 6. Performance Analysis of Public-Key
Cryptography-Based Group Authentication
6.1. Public-key cryptography-based authentication
6.2.1. Protocol analysis
6.2.2. The calculation of the response time via queuing networks
6.3. A new group authentication technique using public-key cryptography
6.3.1. A single remote realm
6.3.2. Multiple remote realms
6.4. Performance evaluation of the new proposed technique
6.4.1. The operations of encryption and decryption
6.4.2. The calculation of the response time via a queuing network
6.4.3. Discussions
6.5. Concluding remarks
Chapter 7. Summary and Future Work
7.1. Research summary of the book
7.2. Future research directions

Book Reviews – Resource Optimization and Security for Cloud Services

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