Blockchain Terminal Switch Connector for Secure Key Storage
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Solution Overview
Problem
Current blockchain transaction systems face security challenges due to the risk of malware introduction during the process, lack of clear public documentation for security features, and difficulty in accessing and securing blockchain assets.
Innovation Solution
A system that includes a terminal configured to generate blockchain transactions in two modes, with a switch connector to prevent simultaneous operation in both modes, allowing secure communication with either a system provider server or a cold storage device, which stores private keys and signs transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a terminal is connected to both network and cold storage device simultaneously, then convenience of operation is improved, but security is worsened due to risk of malware exposure
Solution Approach 1:
The system dynamically switches between two operational modes: online mode for network communication and offline mode for cold storage communication. The switch connector enables the terminal to adapt its connectivity state based on operational requirements, allowing convenient access to both network and cold storage while preventing simultaneous connection that would expose private keys to malware risks
2Ease of operation
If private keys are exposed to network for transaction signing, then ease of operation is improved, but security is worsened due to malware risk
Solution Approach 1:
The system extracts the private key from the online terminal and stores it in an isolated cold storage device that is not connected to the network. Transaction signing is performed offline in the cold storage device, and only the signed transaction (not the private key) is transmitted to the network, thereby eliminating malware exposure risk while maintaining operational ease
Solution Approach 2:
The cold storage device acts as an intermediary that enables transaction signing without direct network exposure. It receives transaction requests from the terminal, performs signing offline, and returns the signed transaction to be broadcast to the network, serving as a secure mediator between online and offline operations
3Reliability
If cold storage device is used for secure key storage, then security is improved, but device complexity is worsened
Solution Approach 1:
The system segments functionality into two distinct components: a terminal for online operations and a cold storage device for offline key management. This segmentation allows each component to be optimized for its specific purpose while working together through standardized interfaces, managing complexity through functional separation
4Reliability
If switch connector prevents simultaneous mode operation, then security is improved by preventing private key exposure, but ease of operation is worsened
Solution Approach 1:
The switch connector implements dynamic mode switching that automatically manages connectivity states. Users interact with a unified interface that handles mode transitions transparently, maintaining operational convenience while enforcing security through automated prevention of simultaneous online and offline connections
Data Source
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AI summary
Provided herein is a system, device, method, and subnetwork for performing a secure blockchain transaction of a digital asset. The system includes a terminal for generating the blockchain transaction, the terminal configured to operate in a first mode and a second mode, and a switch connector for preventing the terminal from operating in the first mode and the second mode simultaneously. When the terminal is in the first mode, the terminal is connected via a network to a system provider server, the system provider server in communication with a plurality of blockchain devices. When the terminal is in the second mode, the terminal is in communication with a cold storage device. The cold storage device is configured to store a private key for signing the blockchain transaction. The terminal is configured to sign the blockchain transaction on the cold storage device using the private key.