Secure Client-Side Communication Using HMAC Tokens
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Solution Overview
Problem
Current secure communication methods between multiple domains in dynamic multi-domain environments suffer from high latency and lack granular security controls, especially in legacy browsers, due to the Same Origin Policy and limited support for cross-domain communication technologies like CORS.
Innovation Solution
Implement a method for secure client-side communication that involves generating and using cryptographic construct data, such as HMAC, along with instruction sets to authenticate users and enforce specific security policies across domains, allowing for granular security and reduced latency by enabling direct communication between multiple domains and subdomains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Same Origin Policy is enforced to provide security control, then security is improved, but communication latency increases due to server-mediated communication
Solution Approach 1:
The patent introduces cryptographic construct data (HMAC tokens) as an intermediary mechanism that enables direct client-side communication between domains while maintaining security. Instead of requiring server-mediated communication, the HMAC tokens act as secure credentials that allow cross-domain requests to proceed directly at the client level, thus reducing latency while preserving security controls.
2Speed
If CORS is implemented to enable cross-domain communication, then communication speed is improved, but compatibility with legacy browsers deteriorates
Solution Approach 1:
The patent creates a copy of the security mechanism from server-side implementation to client-side implementation. By generating HMAC tokens on the server and having clients use these tokens for authentication, the system replicates the security model across different environments, enabling legacy browsers to support cross-domain communication without requiring modern browser CORS implementations.
3Ease of operation
If proprietary standards like Adobe Flash are used for cross-domain communication, then communication capability is improved, but integration with dynamic multi-domain environments deteriorates
Solution Approach 1:
The patent creates a universal cross-domain communication mechanism using standard web technologies (HTTP requests with HMAC authentication) that can function across multiple domains and browsers without requiring proprietary plugins like Flash. The HMAC-based authentication system is domain-agnostic and can be implemented anywhere HTTP is supported, providing universal compatibility across dynamic multi-domain environments.
4Loss of time
If direct client-side communication between domains is enabled, then communication latency is reduced, but security control granularity deteriorates
Solution Approach 1:
The patent applies local quality by making security controls specific to each domain pair and communication context. The HMAC tokens can be generated with domain-specific keys and parameters, allowing each domain to have customized security policies. This enables fine-grained control where security rules can be tailored to specific domain relationships while maintaining direct communication, rather than applying blanket security restrictions.
Data Source
AI summary
Methods and systems for secure client-side communication between multiple domains is provided. Such methods and systems can provide for decreased communication latency particularly effective for dynamic multi-domain and/or multi-tenant environments while allowing for granular security or specific security of messages and operations with regard to users, user sessions, groups, organizations, permissions sets, applications, or any other logical delineation. Such methods and systems may involve a variety of security components, for example, at least one set of instructions including a plurality of defined instruction to be utilized by users of the set of instructions to communicate, and cryptographic construct data in order to verify the data integrity and the authenticity of messages sent and received using the secure client-side communication between multiple domains.