Secure Proxy Fleet Encrypting Sensitive Data in CDNs
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Solution Overview
Problem
In large distributed computing systems, securing sensitive data as it traverses various networks and is accessed by multiple intermediaries is challenging due to increased complexity and the difficulty in identifying vulnerabilities, which can lead to unauthorized access and data exposure.
Innovation Solution
Implementing a secure proxy fleet that encrypts sensitive data within the computing resource service provider's environment, using cryptographic techniques like TLS, SSL, and HTTPS, and managing cryptographic material through a key management system to ensure secure data transmission and storage, while decrypting data only when necessary for processing within isolated environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data is transmitted over multiple networks and intermediaries in a distributed computing system, then system functionality and service availability are improved, but security vulnerabilities and unauthorized access risks increase
Solution Approach 1:
The patent introduces a content delivery network (CDN) as an intermediary layer between customers and the distributed computing system. The CDN securely receives, caches, and distributes content to multiple intermediaries and networks, acting as a trusted mediator that prevents direct exposure of the computing system to external security threats while maintaining service availability and functionality across the distributed architecture
2Reliability
If cryptographic material is managed through a key management system, then data security is improved, but system complexity increases
Solution Approach 1:
The patent extracts cryptographic key management as a separate, dedicated function from the overall computing system. The key management system is implemented as an independent component that specifically handles cryptographic material generation, storage, and distribution, separating security-critical operations from general system operations and reducing overall system complexity while maintaining high data security
3Reliability
If secure proxy fleet encrypts sensitive data, then unauthorized access is prevented, but processing time increases due to decryption requirements
Solution Approach 1:
The patent implements preliminary encryption of sensitive data by the secure proxy fleet before data leaves the content delivery network. Data is encrypted in advance during the distribution process, so that by the time it reaches intermediaries or storage locations, it is already in protected form. This eliminates the need for repeated decryption operations during subsequent processing and access operations, maintaining security while reducing processing time delays
Data Source
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AI summary
A computing resource service provider may operate a secure proxy fleet within a content delivery network. The secure proxy fleet may protect sensitive data communicated between a client device and a backend service over one or more networks, for example, over the content delivery network to a computing resource service provider environment. The secure proxy fleet may protect sensitive data by encrypting the sensitive data before it is forwarded to a destination.