Admission Controller Signature Verification for Container Image Deployment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Managing cybersecurity policies across multiple computing environments is complicated, leading to potential exposures due to inconsistent and subjective application of security policies, especially in cloud and hybrid environments.
Innovation Solution
Implementing a unified policy engine that applies a single set of policies across different computing environments using an admission controller configured to verify software images signed with asymmetric cryptography, ensuring consistent and objective policy enforcement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate security policies are maintained for each computing environment, then each environment can be customized for its specific needs, but the complexity of managing cybersecurity policies increases and consistency across environments deteriorates
Solution Approach 1:
The patent implements a universal cryptographic signature verification mechanism that functions across all computing environments (cloud, on-premises, hybrid, staging, production, testing). The admission controller uses a standardized process to verify software image signatures against stored cryptographic keys, providing consistent security enforcement without requiring environment-specific policy configurations. This multi-functional approach allows the same security infrastructure to serve diverse computing environments.
2Adaptability or versatility
If separate security policies are maintained for each computing environment, then each environment can be customized for its specific needs, but the risk of security exposures increases due to inconsistent policy application
Solution Approach 1:
The patent implements preliminary cryptographic signature verification of software images before they are deployed to any computing environment. The admission controller verifies the digital signature of each software image against stored cryptographic keys associated with authorized software vendors or internal development teams. This preliminary validation ensures that only authenticated, unauthorized-modification-free software images are deployed, establishing a consistent security baseline across all environments before workloads are instantiated.
3Reliability
If cryptographic signature verification is implemented at runtime, then security policy enforcement is strengthened, but the deployment time increases due to additional verification steps
Solution Approach 1:
The cryptographic signature verification is performed as a preliminary check during the software image deployment process, before the workload is actually instantiated. The admission controller verifies the digital signature of the software image against stored cryptographic keys, and only after successful verification does the system proceed with deployment. This preliminary action ensures that security verification is completed upfront, preventing unauthorized or modified software from being deployed, while minimizing runtime overhead.
4Reliability
If a unified policy engine is implemented across all computing environments, then policy consistency is improved, but the system complexity increases
Solution Approach 1:
The patent extracts the core security verification function from the diverse computing environments and implements it as a standalone admission controller component. The admission controller maintains a centralized repository of cryptographic keys associated with authorized software sources and performs signature verification independently of the specific computing environment. This extraction approach provides unified security policy enforcement across cloud, on-premises, hybrid, and other environments without requiring complex integration with each environment's native security infrastructure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures timely, consistent, and objective application of security policies across multiple environments, reducing the risk of exposure by validating software images before deployment and applying unified policies to containers and nodes.
Implementation Method 1
selecting a signed software image for deployment in a computing environment, the software image signed utilizing a private cryptographic key of an asymmetrical cryptography scheme
Data Source
AI summary
A method and system for deploying signed software images in a computing environment is presented. The method includes selecting a signed software image for deployment in a computing environment; accessing a public cryptographic key corresponding to a private cryptographic key, wherein the private cryptographic key is utilized in signing software images; configuring an admission controller of a software container cluster deployed in the computing environment to verify the signed software image utilizing the public cryptographic key; configuring the admission controller to deploy the signed software image in the software container cluster in response to verifying the signed software image with the public cryptographic key; and configuring an admission controller to deny deployment of the signed software image, in response to determining that the signed software image is not verified with the public cryptographic key.