Secure Channel Algorithm Negotiation via Sorted Security Lists
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Solution Overview
Problem
Existing methods for establishing secure communication channels between communication devices often fail when the supported algorithm options do not match, leading to incomplete or unsuccessful negotiations.
Innovation Solution
The method involves generating a sorted list of algorithm options based on user selections, creating a security association proposal that includes algorithm options in order of security strength, and transmitting this proposal to the target communication device for establishing a secure communication channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication devices negotiate algorithm options individually, then each device can support its preferred algorithms, but negotiation may fail when algorithm options do not match
Solution Approach 1:
The patent applies preliminary action by pre-sorting algorithm options in order of security strength before negotiation begins. This allows the target device to efficiently evaluate proposals without extensive back-and-forth negotiation, preventing negotiation failures while maintaining adaptability to different device capabilities
Solution Approach 2:
The patent changes the parameter organization by sorting algorithm options based on security strength rather than presenting them in arbitrary or device-specific orders. This parameter reorganization enables reliable matching between communicating devices while preserving support for diverse algorithm options
2Adaptability or versatility
If multiple algorithm options are transmitted for evaluation, then the target device can choose the best match, but data transmission traffic increases
Solution Approach 1:
The patent applies preliminary action by pre-sorting algorithm options in order of security strength before transmission. This allows the target device to efficiently evaluate proposals without extensive back-and-forth negotiation, reducing data transmission traffic while maintaining adaptability to different device capabilities
Solution Approach 2:
The patent changes the parameter organization by sorting algorithm options based on security strength rather than presenting them in arbitrary or device-specific orders. This parameter reorganization enables efficient evaluation with reduced transmission overhead while preserving support for diverse algorithm options
Data Source
AI summary
A method of establishing a secure communication channel between a first communication device and a second communication device. The secure communication channel is defined by one or more algorithm options and the one or more algorithm options are associated with one of one or more option categories. The method includes receiving a signal representing one or more selections. The method further includes, for the respective option categories, generating a sorted list of algorithm options based on the received selections and generating a security association proposal including one or more of the algorithm options from the respective sorted lists of algorithm options. The security association proposal is generated based on an order in the sorted list of algorithm options. The method further includes transmitting the security association proposal to the second communication device for establishing the secure communication channel.