Load Balancer Authentication and Authorization Policy Enforcement
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Solution Overview
Problem
Existing load balancer systems do not effectively authenticate and authorize users before routing incoming network traffic to computing resources, leading to potential unauthorized access and increased processing time for legitimate requests.
Innovation Solution
A load balancer configured to perform authentication and authorization checks using a policy management service, verifying digital signatures and applicable policies before transmitting API requests to customer services, and collecting metering data for billing purposes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If authentication and authorization checks are performed before routing traffic, then security and access control are improved, but processing time and system complexity increase
Solution Approach 1:
The load balancer performs authentication and authorization checks before routing traffic to computing resources. By conducting these security validations in advance at the load balancer level, the system ensures that only authenticated and authorized requests are forwarded to backend services, preventing unauthorized access while maintaining security protocols.
Solution Approach 2:
The load balancer acts as an intermediary component between incoming network traffic and computing resources. It intercepts requests, performs security validations including authentication and authorization checks against policy management services, and only forwards legitimate requests to the appropriate computing resources, thereby enforcing security without requiring changes to backend services.
2Reliability
If authentication and authorization checks are performed before routing traffic, then unauthorized access is reduced, but device complexity increases
Solution Approach 1:
The load balancer is enhanced to perform multiple functions including traditional traffic distribution, authentication validation, authorization checks, and policy enforcement. By consolidating these diverse security and routing functions into a single load balancer component, the system achieves comprehensive access control without proportionally increasing overall system complexity, as the load balancer serves as a multi-functional security gateway.
Solution Approach 2:
The load balancer serves as a central intermediary that mediates between incoming traffic and computing resources, concentrating security validation logic in one place. This intermediary role allows the load balancer to enforce authentication and authorization policies uniformly across all requests, simplifying the overall system architecture by centralizing security functions rather than distributing them across multiple components.
3Productivity
If all incoming traffic is routed to computing resources without validation, then processing speed is maintained, but security vulnerabilities increase
Solution Approach 1:
The load balancer performs preliminary authentication and authorization validations before routing traffic to computing resources. By validating requests in advance at the load balancer level, the system maintains efficient processing speeds for legitimate traffic while blocking unauthorized access early in the request lifecycle, preventing security vulnerabilities without significantly impacting the processing speed of authenticated requests.
Data Source
AI summary
A load balancing service receives a request from a customer to configure a load balancer for distributing incoming requests to one or more computing resources of the customer. The load balancing service uses configuration information specified in the request to configure the load balancer such that the load balancer, in response to an incoming request, can determine whether the incoming request satisfies a set of request processing rules usable to determine whether the request is to be transmitted to any computing resource of the one or more computing resources. The load balancer transmits the incoming request to a computing resource of the customer as a result of the rules being satisfied.