Fundamentals of Cloud Security Architecture

Wagner Nascimento

Oct 18, 2022 / 4 min read

Synopsys Cloud

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If you are considering the cloud, you will need to develop a cloud security architecture strategy to reduce data exposure to risks and threats.

Cloud security architecture refers to the hardware and technologies used to protect data, workloads, and systems in the cloud. It is essential to develop a cloud security architecture strategy and integrate it into your cloud platform from the beginning. This article will examine the fundamentals of a cloud security architecture and how they translate to a few popular cloud service models.

Cloud Security Architecture Fundamentals

A cloud security architecture should cover three core capabilities: confidentiality, integrity, and availability. A better understanding of each capability will help you plan a more secure cloud deployment.

  • Confidentiality. Keeping information private and unreadable from those who should not have access, such as attackers or people within an organization without appropriate credentials, is paramount. Privacy and trust are related aspects of confidentiality.
  • Integrity. Systems and applications should consistently and reliably function according to expectations. Losses are inevitable if a system or application is compromised to produce unknown, unexpected, or misleading output.
  • Availability. Organizations must strive to prevent denial-of-service attacks and other causes of downtime. If an attacker disrupts your systems, you cannot carry out essential tasks to maintain and develop your business.

Security tools can help organizations address confidentiality, integrity, and availability in cloud platforms in order to define a trusted execution environment. These include:

  • Multi-Factor Authentication
  • Data Encryption
  • Data Loss Prevention
  • Privileged Access Management
  • Cloud Security Monitoring
  • Vulnerability management
  • Cloud Configuration Management
  • Monitoring

Cloud Security Architecture and Service Models

The cloud services you employ also affect the security tools protecting your data and applications. The primary cloud service models are Software-as-a-Service (SaaS), Platform-as-a-Service (PaaS), and Infrastructure-as-a-Service (IaaS).

Cloud service providers adhere to a model of shared responsibility in regard to security. The cloud service provider keeps the components secure (software, computing, storage, database, networking, hardware, and infrastructure), while the customer keeps data and information safe. Depending on the service type, responsibilities can vary.


Software-as-a-Service (SaaS)

A SaaS provider supplies cloud-based applications to customers for a fee. A SaaS customer is typically only responsible for the security of components associated with accessing the software, such as access controls and network security. Information security in the cloud relies on a cloud-provided shared responsibility model.

The SaaS security architecture should include application security, identity and access management, and a cloud access security broker (CASB) to facilitate visibility, access controls, and data protection.


Platform-as-a-Service (PaaS)

In a PaaS model, customers purchase platform use from a cloud provider to develop, run, and manage applications without managing the underlying infrastructure. The customer is responsible for the security associated with application implementation, configuration, and permissions.

A PaaS security architecture may require standard solutions, as well as less common solutions like a cloud workload protection platform.


Infrastructure-as-a-Service (IaaS)

IaaS requires customers to purchase the infrastructure from a cloud provider and install its own operating systems, applications, and middleware. As part of an IaaS model, the customer often is responsible for the security of any equipment it owns or installs.

IaaS security architecture components routinely include endpoint protection, a vulnerability management solution, access management, and data and network encryption.

Cloud security architecture allows businesses to utilize cloud services fully while limiting exposure and vulnerability. It is important to understand the shared responsibility model, know cloud security best practices, and implement the best approach to cloud security based on your needs, obligations, and risks. 

Depending on your organization's cloud service, cloud security architectures can be complex. The time and skill required to develop a robust and effective security architecture should not be underestimated.

Types of Cloud Computing | Synopsys Cloud

Synopsys Cloud as a Security Enabler

As an industry leader in security and compliance, Synopsys offers the necessary expertise to make the most of the cloud for your chip design and verification projects.

Designing chips in the cloud cannot be successful without robust security protocols. As a result, chip designers must incorporate security into the design process to ensure the safety of the chip development lifecycle, infrastructure, and platforms.

Synopsys Cloud provides comprehensive cloud security for our cloud-optimized electronic design automation (EDA). We incorporate security into our products using a full suite of security tools.

Synopsys, EDA, and the Cloud

Synopsys is the industry’s largest provider of electronic design automation (EDA) technology used in the design and verification of semiconductor devices, or chips. With Synopsys Cloud, we’re taking EDA to new heights, combining the availability of advanced compute and storage infrastructure with unlimited access to EDA software licenses on-demand so you can focus on what you do best – designing chips, faster. Delivering cloud-native EDA tools and pre-optimized hardware platforms, an extremely flexible business model, and a modern customer experience, Synopsys has reimagined the future of chip design on the cloud, without disrupting proven workflows.


Take a Test Drive!

Synopsys technology drives innovations that change how people work and play using high-performance silicon chips. Let Synopsys power your innovation journey with cloud-based EDA tools. Sign up to try Synopsys Cloud for free!

About The Author

Wagner Nascimento is vice president and chief information security officer at Synopsys. As the CISO, Wagner is responsible for developing and implementing the Information Security Program for the enterprise . Wagner has over 20 years of experience in the cybersecurity space, leading security efforts in other larger organizations such as VISA, Cisco, and Albertsons. A Certified Information Systems Security Professional (CISSP), Wagner is adept in security architecture/analysis, cyber threat detection, risk management, incident response, and contingency planning. He has a B.S. in Information Technology from American Intercontinental University and an MBA (Finance, Strategic Management) from California State University, East Bay.

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