Digital Credential Management via Secure Channel Encryption
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Solution Overview
Problem
Existing digital certificate management methods in wireless local area networks (WLANs) lack effective protection for the authenticity and confidentiality of data, as messages are transmitted in clear text, compromising security when interacting through other network forms.
Innovation Solution
Establishing a secure data channel between digital certificate requesting and issuing devices using an authorization code to generate a security key, which encrypts all message interactions, ensuring the integrity, authenticity, and confidentiality of data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If messages are transmitted in clear text between digital certificate requesting device and issuing device, then the ease of operation and implementation is improved, but the security (confidentiality and authenticity) of data transmission deteriorates
Solution Approach 1:
The patent applies preliminary action by establishing a secure channel and generating encryption keys before the actual digital certificate management operations. The method pre-configures security parameters, sets up encrypted communication paths, and prepares authentication mechanisms in advance, so that all subsequent certificate issuance, renewal, and management operations automatically benefit from these pre-established security measures without requiring repeated security negotiations.
2Reliability
If encryption is implemented for all message transmissions, then the security of data transmission is improved, but the device complexity and computational overhead increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting encryption parameters, key lengths, and algorithm selections based on the specific operation being performed. Different encryption strengths are applied to different message types (e.g., certificate issuance vs. status queries), and security parameters are adapted according to the communication context, allowing the system to maintain high security where needed while reducing overhead for less critical operations.
3Reliability
If a secure channel is established using authorization codes and security keys, then the confidentiality and authenticity of data are improved, but the time required for channel establishment and key negotiation increases
Solution Approach 1:
The patent applies preliminary action by pre-establishing secure channels and generating security keys before actual certificate management operations. The method includes pre-negotiating security parameters, pre-configuring encryption algorithms, and pre-establishing trusted communication paths, so that when certificate issuance or management operations need to occur, the secure infrastructure is already in place and ready for immediate use.
Solution Approach 2:
The patent applies universality by designing a secure channel establishment mechanism that serves multiple functions: it provides authentication, encryption, integrity verification, and session management all through a single unified protocol. The same security infrastructure supports various certificate operations (issuance, renewal, revocation, querying) without requiring separate security negotiations for each operation, thereby reducing repeated time overhead.
Data Source
AI summary
Provided in the present invention are a digital credential management method and a device, the method comprising: a digital credential application device negotiating establishment of a secure data channel with a digital credential issuing device, and sending to the digital credential issuing device a digital credential management request message; the digital credential issuing device receiving the message, and sending to the digital credential application device a digital credential management verification request message; the digital credential application device receiving the verification request message, and sending to the digital credential issuing device a digital credential management verification response message; the digital credential issuing device receiving the digital credential management verification response message, and sending to the digital credential application device a digital credential management response message; the digital credential application device receiving the digital credential management response message, and sending to the digital credential issuing device a digital credential management confirmation message.