Dynamic Cipher Suite Selection for Resource-Constrained Sessions
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Solution Overview
Problem
Current cryptographic methods provide high security but require significant computational resources, leading to unnecessary latency and energy usage, especially for transactions that do not require the highest levels of security, such as publicly available data.
Innovation Solution
Implementing dynamic cipher suite selection during the handshake process for cryptographically protected communications sessions, where the server selects a cipher suite based on the planned use of the session, allowing for more appropriate cryptographic protection tailored to the specific requirements of the data being transferred, such as using cipher suites that provide data integrity without encryption for publicly available data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-level cryptographic protection is applied to all transactions, then data security is improved, but computational resource usage and energy consumption increase
Solution Approach 1:
The patent applies different cryptographic protection levels to different data types and transactions based on their specific security requirements. Publicly available data uses minimal or no encryption, while sensitive data receives stronger protection. This localized approach ensures each transaction receives appropriate security without unnecessary computational overhead.
Solution Approach 2:
The system dynamically selects cryptographic parameters including cipher suites, key lengths, and protocol versions based on the transaction context, data sensitivity, and client capabilities. This dynamic adaptation allows the system to optimize the balance between security and performance for each specific transaction rather than applying a static high-security configuration to all cases.
2Reliability
If high-level cryptographic protection is applied to all transactions, then data security is improved, but latency increases
Solution Approach 1:
The patent implements context-aware cryptographic selection that matches protection levels to transaction requirements. Low-sensitivity transactions such as accessing publicly available data use minimal cryptography, reducing processing time and latency. High-sensitivity transactions receive appropriate security measures, ensuring the latency penalty is only applied when necessary for security.
Solution Approach 2:
The system applies cryptographic protection selectively rather than universally. For transactions where full cryptographic protection exceeds what is needed, the system uses partial protection appropriate to the data sensitivity level, thereby reducing the computational time required while maintaining adequate security.
3Reliability
If strong cipher suites are used for all communications, then security is improved, but energy consumption increases
Solution Approach 1:
The patent implements data-type-specific cryptographic configurations where the server applies different cipher suites and security parameters based on the sensitivity and nature of the data being transmitted. This localized security approach ensures strong protection for sensitive data while using lighter cryptographic methods for public data, optimizing energy consumption across the server infrastructure.
Solution Approach 2:
The system dynamically changes cryptographic parameters including cipher suite selection, key exchange methods, and encryption algorithms based on transaction context, client capabilities, and data sensitivity. This parameter adaptation allows the server to reduce energy consumption by selecting less computationally intensive cryptographic operations when maximum security is not required.
Data Source
AI summary
Cipher suites and/or other parameters for cryptographic protection of communications are dynamically selected to more closely match the intended uses of the sessions. A client indicates a planned use of a session to a server. The client's indication of the planned use may be explicit or implicit. The server selects an appropriate set of parameters for cryptographic protection of communications based at least in part on the indicated planned use and the client and server complete a handshake process to establish a cryptographically protected communications session to use the selected set of parameters.