Zero Trust Security Solutions
However, in a thriving time like this data protection is more important than ever, If you’re looking for a way to simplify IT management and secure your workforce, Zero Trust Security is the best solution. This initiative helps in preventing data breaches by simply eliminating the idea of trust from your organization’s network architecture.
Get in touch with us to learn more about Zero Trust Security Solutions today.
Transforming for Innovation, Sustainability and Security
The Need for Better Security Architecture
Before we can discuss what a zero-trust network architecture is, we must first understand the circumstances that have necessitated its need. With networks growing in complexity thanks to the advent of new technologies such as big data, cloud computing, IoT, and mobile internet, the old boundaries that protected networks are quickly fading.
What is Zero Trust Network Architecture?
- One must assume that the network is hostile at all times.
- There is a constant threat on the network, both internal and external.
- Being on the network is not a sufficient criterion for trust.
- Each device, and user must be authorized and authenticated at every stage.
- Security policies must be flexible and proactive, collecting information from all available data sources.
Transforming for Innovation and Sustainability securing future competitive advantage
Introducing Calico Enterprise Zero-Trust Network Security
- Workload Identity: First and foremost, multi-factor authentication via general metadata, network identity, and x.509 certificates applies to all microservices. Even after authentication, access is only given to destinations that the microservice has prior authorization to connect to.
- Least Privilege Access Control: The term access control should be rather self-explanatory. The least privilege part of the equation is what is so unique and great about Tigera’s Calico Enterprise Zero-Trust Network Security platform. It begins with a foundation of no trust for the device and then gradually provides access as required. This not only applies to traffic between microservices but also the flow of data into and out of the cluster. This broad approach protects the entire infrastructure stock.
- Defense in Depth: We’ve already explained that a foundational part of zero-trust networks is that some part of the network is assumed to be compromised at any given moment. As such, Calico Enterprise Zero-Trust Network Security makes a determination at every connection request. This determination depends on whether the request has been authorized at all three layers – the host, the pod and the container. If even one layer is observed to be compromised, then access is denied, and you are alerted to the issue.
- Data-in-Transit Encryption: When data moves between microservices it is especially vulnerable. Calico Enterprise protects all traffic by encrypting it with mTLS and IPsec encryption.
Requirements of a Zero-Trust Network
Requirement Implementation by Calico
- Multiple Enforcement Points: There are two separate enforcement points that any incoming request to your Kubernetes workload must pass through. The first enforcement point is the host kernel. Using iptables at L3-L4 Calcio’s policy is enforced in the Linus kernel. If the incoming request is able to get through this point, it still has to get through the envoy proxy. This policy is enforced in the Envoy proxy at L3-7, and each request is authenticated cryptographically. Multiple points of enforcement ensures that the connection request has to validate their identity more than once, ensuring maximum security and minimum risk. In doing so, requirement 4 of a zero-trust network is fulfilled.
- Calico Policy Store: Allowed flows are encoded in an allow-list in the Calico data store. This aims to fulfill the third requirement of zero-trust architecture. As previously mentioned, zero-trust requires a fair bit of flexibility for effective implementation. Calico enterprise provides plenty of it. Practically speaking, this component allows your network to have capabilities that legacy systems offered such as zones in tandem with zero-trust features like allow lists. What’s crucial is that these can be used simultaneously, if need be, layered on top of each other via the maintenance of multiple policy documents.
- Calico Control Plane: This feature aims to meet the expectations laid down by the 4th requirement of a zero-trust network. The plane transfers the policy information to the previously highlighted enforcement points. This ensures that any connection to the cluster must be authenticated and authorized at multiple entry points based on the security policies.
- Istio Citadel Identity System: Networks can be compromised through infrastructure points such as routers or links. To counteract this vulnerability, Tigera Calico Enterprise in tandem with Istio utilizes an Istio component by the name of Citadel. This component fulfills the second and fifth requirement of a zero-trust network by first, establishing cryptographic keys that that each service account must provide to validate its identity. Next, traffic is also encrypted using this same principle.
Frequently Asked Questions
Who is Zero-Trust For?
Given that the President of the United States has issued an executive order making the implementation of zero-trust architecture for Federal civilian agencies. This is a positive step in the right direction that should see more government agencies and other branches of the military seek out private sector assistance in implementing zero-trust architecture.
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Benefits of Zero-Trust Architecture
Two Decades of Superior Client Outcomes
Our clients and CCT celebrate two decades of superior client outcomes from multi-year contract engagements. We are honored, inspired, and grateful for these long-term relationships.
Migration to Zero-Trust Network Infrastructure
1. Clear Vision
2. Construct a Plan
3. Graduated Scope of Zero Trust Security Solutions
Finally, you should now have enough information to enhance the Zero Trust Security Solutions capabilities. This is the capability evolution phase. Zero-trust requires that it is constantly evolving because the nature of the security environment demands it. This is what distinguished zero-trust and why it is essential that businesses and other organizations utilize it.