Digital Certificate Verification Device Caching
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Solution Overview
Problem
Existing methods for verifying digital certificates are complex and resource-intensive, making them unsuitable for all devices or applications, particularly those with limited computing or storage capacity.
Innovation Solution
A verification device and method that uses a data structure to store user certificate-related data records, allowing for quick and simple verification by accessing pre-computed information, such as digital fingerprints, revocation status, and validity dates, reducing the need for repeated complex cryptographic calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complete certificate path validation is performed for each verification, then security and authenticity are ensured, but verification time and computational resources increase significantly
Solution Approach 1:
The patent performs certificate path validation and computes verification results in advance, storing the validated certificate path information and verification outcomes in a database. When a verification request arrives, the system retrieves pre-computed results instead of performing complete validation again, dramatically reducing verification time while maintaining security.
Solution Approach 2:
The system proactively validates certificates and caches verification results before they are needed, creating a buffer of pre-processed security information. This cushioning effect allows the system to handle verification requests quickly without compromising the thoroughness of security checks.
2Reliability
If complete certificate path validation is performed for each verification, then certificate authenticity is ensured, but computational load and resource consumption increase
Solution Approach 1:
The system performs computationally intensive certificate path validation and cryptographic verification in advance, storing results in a database. Subsequent verification requests retrieve pre-computed results, avoiding repeated expensive cryptographic operations and significantly reducing computational resource consumption.
Solution Approach 2:
The patent creates and stores copies of validated certificate path information and verification results in a database. These copies can be quickly retrieved and used for multiple verification requests without requiring the original computational work to be repeated, reducing energy consumption while maintaining verification integrity.
3Measurement precision
If certificate verification is performed without caching, then verification accuracy is maintained, but verification speed decreases
Solution Approach 1:
The system pre-validates certificate paths and stores verification results in a database with appropriate integrity mechanisms. When verification requests arrive, the system retrieves pre-computed accurate results, maintaining verification precision while dramatically improving verification speed through efficient database queries.
Solution Approach 2:
The system implements a feedback mechanism where verification results are stored and reused for subsequent identical or related verification requests. This feedback loop allows the system to maintain high verification accuracy by consistently applying validated certificate paths while improving speed through cached results.
Data Source
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AI summary
Described is a verification device (1) for verifying a digital certificate, comprising: a digital input (2) configured to receive at least one digital user certificate (3); an electronic memory (4) configured to store a data structure (5); and a processor (6) configured to: verify the user certificate (3) and create a user certificate-related data record (7) in the data structure (5) in the memory (4) for future verification of the user certificate and/or access an created user certificate-related data record (7) of the data structure (5) for current verification of the user certificate (3) and to verify the user certificate using the user certificate-related data record (7), wherein the user certificate-related data record (7) is at least partially identifiable via an identifier (8).