Security tactics software architecture

The software architecture of a system depicts the systems organization or structure, and provides an explanation of how it behaves. Security has become one of the most important of them. Apr 29, 2017 so, what is the architecture decisions. Thinking like a malicious hacker helps a security architect become adept at understanding and anticipating the moves and tactics that a hacker might use to try and gain unauthorized access to the computer system. Architecture patterns describe the highlevel structure and behavior of software systems as the. Software architecture optimizes attributes involving a series of decisions, such as security, performance and manageability. A methodological approach to apply security tactics in software. These decisions ultimately impact application quality, maintenance, performance and overall success.

Security architecture is important for making sure security is built into the business process and systems of the organization. There are four main categories of security tactics. We will examine these design decisions, which we call tactics. Software architectural design meets security engineering. In other words, the software architecture provides a sturdy foundation on which software can be built. Secure by design is more increasingly becoming the.

A system represents the collection of components that accomplish a specific function or set of functions. Tactics for achieving security can be divided into those concerned with resisting. The twolevel security architecture of tactics smartguard ensures safe operation. Software architecture in practice, 3rd edition informit. The approach extends existing software architecture design methodologies and. In this study, we examine the extent of this discrepancy between an architects vision of what security tactics need to be adopted in the software and the actual implementation. Since their initial formulation, they have been formalized, compared with patterns and associated to styles, but the initial set of. Improves compliance a strategy allows you to build the. Software architecture in practice, 3rd edition, chapter 9 slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. So it is necessary to address these aspects at the architectural level, although this is not sufficient to build safe and secure systems. These contexts include technical, life cycle, business, and professional. Should we use tactics or patterns to build secure systems.

Formal specification of software architecture security tactics. Security architecture is the set of resources and components of a security system that allow it. Tactics are fundamental elements of software architecture that an architect employs to meet a systems quality requirements. Architectural context and main concepts, the role and responsibilities of a software architect. In this report, the authors describe an approach to disciplined software architecture design for the related quality attributes of security and survivability. A wellplanned enterprise asset security strategy, with an it and software security architecture approach leveraging automation and integration, is crucial to stopping hacker attacks like wannacry, according to ron temske, a. In particular, incorrect implementation of security tactics or the deterioration of security tactics during coding and maintenance activities 14, 17 can result in vulnerabilities in the security architecture of the system, thus compromising key security requirements. Reduces complexity auditors love details and checkboxes that are checked, but short of that, they appreciate strategy and a plan to get somewhere. The quality attribute requirements specify the responses of the system that, with a bit of luck and a dose of good planning, realize the goals of the business. Software architecture designers inevitably work with both architecture patterns and tactics. Pdf understanding software vulnerabilities related to. Addressing software architecture holistically from concepts, methods, principles, all the way to human aspects is important to help you acquire the knowledge more effectively. Goal of security tactics one method for thinking about system security is to think about physical security. It is called also architecture strategies and tactics.

Embrace software security architecture to beat wannacry. These architectural tactics provide mechanisms for resisting, detecting. In this paper, we investigate the relationship between several architectural patterns and performance as well as security tactics. Software architecture is the defining and structuring of a solution that meets technical and operational requirements. Part 1 begins by introducing software architecture, its applicability, and its importance in terms of systemlevel qualities. Stakeholders, business goals and quality attributes e. Security and survivability reasoning frameworks and architectural. Architectural tactics are design decisions intended to improve some system quality factor. There is a need for indepth analysis of security tactics and its prioritization for the sake of determining the most prioritized. Availability august 2009 technical report james scott, rick kazman. Security and control specifications serving as guidance for implementing and auditing systems and operations. Both security architecture and security design are elements of how it professionals work to provide comprehensive security for systems.

The awardwinning and highly influential software architecture in practice, third edition, has been substantially revised to reflect the latest developments in the field. We now turn to the techniques an architect can use to achieve the required quality attributes. A security architect is the individual who is responsible for maintaining the security of a companys computer system. They must think like a hacker would, because they must anticipate all of the moves and tactics that hackers will use to try and gain unauthorized access to the computer system. The best way to plan new programs is to study them and understand. The architect can design the allocation of services to hosts so that limited. Revisiting architectural tactics for security springerlink.

Thinking like a malicious hacker helps a security architect become adept at understanding and anticipating the moves and tactics that a hacker might use to try and gain unauthorized access to the. Security tactics security tactics detect attacks resist attacks react to recover attacks from attacks identify actors revoke detect maintain restore access intrustion authenticate audit trailattack system detects, detect service actors lock resists, reacts, denial computer or recovers authorize see verify message actors availability integrity. Security and survivability reasoning frameworks and. If you continue browsing the site, you agree to the use of cookies on this website. Hardware security mechanisms include protection against tampering, undesired emanations, and cryptography. A security architecture that is built as the result of a defined strategy simplifies the process of selecting the right people and technology. As a managementlevel employee, you will likely need to stay abreast of current trends in the security field.

Feb 01, 20 security tactics security tactics detect attacks resist attacks react to recover attacks from attacks identify actors revoke detect maintain restore access intrustion authenticate audit trailattack system detects, detect service actors lock resists, reacts, denial computer or recovers authorize see verify message actors availability integrity. An architectural tactic is a design decision that affects how well a software architecture addresses a particular quality attribute. We know security tactic is important,but how do we go about secure design in reality. Many factors drive todays need for information systems security, including the increasing trend to distribute systems, the use of public networks particularly the internet as part of system infrastructure, the rising interest in interorganizational computing such as that envisaged by web services, and other less technical reasons such as the increasing interest. In a realworld setting, it once again introduces the concepts and best practices of software architecturehow a software system is structured and how that systems elements are meant to interact. Software architecture in practice, third edition, is a substantial revision, reflecting the latest developments in the field. His new free book, software architecture patterns, focuses on five architectures that are commonly used to organize software systems. Some find it gratifying to publish articles about new security software or best practices for designing a security architecture. Towards a reliable mapping between performance and security. Software architecture in practice, chapter 9 slideshare. Orellana c, villegas m and astudillo h mitigating security threats through the use of security tactics to design secure cyberphysical systems cps proceedings of the. Software architectural tactics and patterns for safety and security. A security tactic is a design concept that addressesa security problem at the architectural design level. This work presents a method for software architecture design within the context of safety.

Since their initial formulation, they have been formalized, compared with patterns and associated to styles, but the initial set of tactics for security has only been refined once. There are two very important questions to ask when talking about software architecture. The use of security tactics in open source software. Security tactics are a useful toolthat can help you immediately start reasoningabout secure software design. A security architect is a seniorlevel employee who is responsible for designing, building and maintaining the security structures for an organizations computer system. Learn software architecture indepth and start architecting. You will need to travel to conferences and stay abreast of industry publications. The security perspective software systems architecture. This paper provides a z specification for the software architectural tactics of authentication and authorization for the security quality attribute. We call a collection of tactics an architectural strategy, which we will treat in chapter 12. The importance of quality attributes in software architecture. A security context is defined as a controlled process space subject to an information domain security policy. Abstractto satisfy security requirements, software architects often adopt security tactics.

The influence of architecture in assurance of system safety is being increasingly recognised in missioncritical software applications. This method is centred upon extending the existing notion of architectural tactics to include safety as a consideration. An architectural pattern packages tactics in a fashion that we will describe in section 5. What is the difference between security architecture and. Towards a reliable mapping between performance and. This report describes how tactics are based on the parameters of quality attribute models. In a realworld setting, it once again introduces the concepts and best practices of software architecture how a software system is structured and how that systems elements are meant to interact. Mark richards is a bostonbased software architect whos been thinking for more than 30 years about how data should flow through software. Because these security tactics are the advice of experts, you can be reasonably confident that these approaches are effective.

What does a software architect do for an organization. Quality attributes are the hardest aspect of designing software architectures. Therefore, the presented method follows the intention to develop security requirements into a security policy, further a security model, and later into a secure software architecture using different mechanisms to ful. The hardware is expected to protect the integrity of the end system software.

Many factors drive todays need for information systems security, including the increasing trend to distribute systems, the use of public networks particularly the internet as part of system infrastructure, the rising interest in interorganizational computing such as that envisaged by web services, and other less technical reasons such as the. An overview of security architecture within an enterprise. To ensure continued excellence in software architecture practices, the sei objectively validates a students understanding of software architecture before students are eligible to receive professional certificates in software architecture or become certified to lead sei authorized atam evaluations. To access monitoring functions, youll need to enter a username and password, but for active interventions, such as changing traffic light switching plans. Nevertheless, most architectural strategies have not been developed to the extent necessary to ensure safety of these systems. Security architecture is the set of resources and components of a security system that allow it to function. The use of security tactics in open source software projects. Software architectural tactics and patterns for safety and. Sep 18, 20 it architecture is used to implement an efficient, flexible, and high quality technology solution for a business problem, and is classified into three different categories. Safety and security are important quality attributes of todays software and.

Sep 30, 2004 safety tactics for software architecture design abstract. Architecture tactics secure architectures security patterns secure software development. In such approach, the alternate security tactics and patterns are first thought. Secure by design, in software engineering, means that the software has been designed from the foundation to be secure. In software engineering and software architecture design, architectural decisionsads are design decisions that address architecturally significant requirements.

What are the business drivers behind our initiative. Safety tactics for software architecture design weihang wu tim kelly department of computer science, university of york, york yo10 5dd, uk weihang. Although the term software architecture is used frequently in todays software industry, its meaning is not universally understood. Safety and security are important quality attributes of todays software and their importance is even increasing. It is software architecture that primarily enables the software to achieve its expected qualities such as usability, reliability, performance, scalability, and security.

Revisiting architectural tactics for security laccei. Safety tactics for software architecture design ieee. To bridge this gap, the first critical step is to verify whether the source code reflects at least some of the structural or behavioral features required for a tactic. Architecture patterns describe the highlevel structure and behavior of software systems as the solution to multiple system requirements, whereas tactics are design decisions that improve individual quality attribute concerns. Throughout the process, security architects report their progress to the ciso. In order to tailor a software architecture for satisfying one or more specific quality requirements, tactics have to be integrated into the structure of the architectural patterns.