Adaptive Authentication Protocols for Constrained Bandwidth Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing network security protocols like IPSec impose excessive bandwidth overhead, rendering constrained communication links unusable, especially in low-bandwidth environments such as underwater acoustic or low probability to intercept/detect communication links, where the 'all or nothing' approach fails to balance security and throughput.
Innovation Solution
Adaptive security protocols that spread authentication codes over time and selectively apply security and compression based on message priority, using machine learning to identify critical data portions and synchronize encryption keys, reducing overhead while maintaining data integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If IPSec or other security protocols are applied to provide high level security, then data security is improved, but bandwidth overhead increases
Solution Approach 1:
The patent applies different security measures to different parts of the data based on their priority. Critical data portions receive high-security treatment (e.g., full encryption and authentication), while non-critical portions receive reduced security measures. This local differentiation allows the system to maintain security for important data without unnecessarily consuming bandwidth for all data.
Solution Approach 2:
The patent segments the data into priority-based portions and applies security protocols selectively to each segment. By dividing the data stream and applying differential security treatment to each segment, the system reduces overall security overhead while maintaining protection for critical information.
2Reliability
If higher spreading factor is used in RF communication to lower detection probability, then security is improved, but overall throughput decreases
Solution Approach 1:
The patent applies different security treatment to different data portions based on their criticality. By reserving high-security treatment for critical data and using reduced-security measures for non-critical data, the system can maintain acceptable detection probability while improving overall throughput, similar to how selective spreading factors could be applied to different signal portions.
3Reliability
If 'all or nothing' security approach is used, then complete security coverage is achieved, but communication link becomes unusable in constrained bandwidth
Solution Approach 1:
The patent applies partial security measures rather than complete security coverage to all data. By providing security only where needed (for critical data portions) and accepting reduced security for non-critical data, the system enables communication on constrained bandwidth links while maintaining adequate security coverage for important information.
Solution Approach 2:
The patent differentiates security coverage across different data portions, providing comprehensive security where needed and reduced security where acceptable. This local quality approach allows the communication link to remain usable in constrained environments while maintaining security coverage for critical data.
Data Source
AI summary
A technology is described for applying authentication on a constrained bandwidth link. The method may determine an amortization factor for authentication to be applied to data blocks sent across the constrained bandwidth link. The amortization factor may be pre-set or received from a user during a communication session. Another operation may be generating truncated authentication codes that are keyed cryptographic checksums for the data blocks. A truncation size of the truncated authentication codes may be defined in part by the amortization factor. The data blocks may be sent across the constrained bandwidth link with the truncated authentication codes to the receiving node.