Network Intermediary Security Metadata Encoding
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Solution Overview
Problem
In large-scale data centers, accurately determining the source of service requests is challenging due to the complexity of multi-tier application architectures and the potential for identity spoofing, which can lead to security issues and incorrect billing.
Innovation Solution
A network intermediary generates and encodes security metadata, including client identifiers, and transmits it within a network protocol header to a server, allowing the server to validate the metadata and ensure the authenticity of the request source, thereby preventing spoofing and ensuring accurate billing and security policies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network intermediaries are used to distribute workload and provide security, then service availability and security are improved, but the ability to accurately determine request source identity deteriorates due to potential spoofing
Solution Approach 1:
The patent introduces a trusted network intermediary that acts as a mediator between clients and servers. This intermediary validates client identities and attaches verified identity information to requests, preventing spoofing while maintaining the security and load distribution benefits of using intermediaries. The intermediary serves as a trusted third party that resolves the contradiction by ensuring identity accuracy despite the presence of intermediary devices.
Solution Approach 2:
The patent implements preliminary identity verification by the network intermediary before requests reach the server. The intermediary performs authentication and attaches verified identity information in advance, ensuring that when the server receives the request, the source identity is already confirmed and cannot be spoofed. This preliminary action resolves the identity accuracy issue while maintaining intermediary benefits.
2Reliability
If intermediaries are deployed to provide security and load balancing, then service security and performance are improved, but device complexity increases
Solution Approach 1:
The patent designs the network intermediary to perform multiple functions simultaneously: load balancing, security validation, identity verification, and request forwarding. By consolidating these functions into a single multi-functional intermediary rather than separate specialized devices, the system achieves high security and performance while reducing overall network complexity.
3Reliability
If traditional proxying is used to hide server identities, then server security is improved, but the ability to accurately identify request sources for billing and security policies deteriorates
Solution Approach 1:
The patent introduces a trusted intermediary that performs dual functions: protecting server identities while simultaneously verifying and attaching accurate client identity information. The intermediary acts as a mediator that maintains server anonymity to clients while ensuring servers receive verified client identification for billing and security purposes, resolving the contradiction between server security and source identification accuracy.
Data Source
AI summary
Methods and apparatus for secure proxying using network intermediaries. A system may include one or more servers and a network intermediary. The network intermediary may generate security metadata associated with a client request, comprising an identification of a source of the client request, and transmit an encoded version of the security metadata and a backend request to a server. The server may determine whether the security metadata is valid. If the security metadata is validated, the server may perform one or more operations in accordance with the backend request and the security metadata.