Cryptocurrency Wallet Access Shift from Multi-Sig to Hardware Recovery
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Solution Overview
Problem
Cryptocurrencies are vulnerable to cybersecurity attacks due to their management by decentralized networks, and existing security measures like multi-signature protocols can trap assets if the mobile application or server becomes unavailable, preventing users from accessing their funds.
Innovation Solution
A system that allows users to transition from a multi-signature protocol to a single-device access mode by exporting a descriptor representing multiple private keys, enabling access to cryptocurrency assets even if the application or server is compromised or unavailable, using a hardware wallet device to generate a signature without requiring the mobile application or server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-signature protocol is used to secure cryptocurrency assets, then security against cyber attacks is improved, but accessibility to assets is worsened when mobile application or server becomes unavailable
Solution Approach 1:
The system segments the cryptographic key management into multiple independent components: a hardware wallet device storing private keys, a mobile application for user interface, and a server for additional security. This segmentation allows the private keys to remain securely isolated in the hardware wallet while enabling alternative access paths when the mobile application or server become unavailable, thus resolving the contradiction between security and accessibility.
Solution Approach 2:
The hardware wallet device acts as an intermediary that can independently generate transaction signatures without requiring the mobile application or server. When the mobile application or server become unavailable, the hardware wallet serves as a standalone mediator to authenticate and execute cryptocurrency transactions, maintaining accessibility while preserving the security architecture.
2Reliability
If cryptographic keys are distributed across multiple devices for security, then risk of theft is reduced, but device complexity increases
Solution Approach 1:
The hardware wallet device is designed to be self-sufficient by incorporating the capability to independently generate cryptographic signatures for cryptocurrency transactions. This self-service functionality eliminates the need for complex coordination between multiple devices, as the hardware wallet can autonomously complete transactions using stored private keys, thus reducing system complexity while maintaining the security benefits of key distribution.
3Reliability
If multi-signature protocol requires multiple keys for transaction approval, then security is improved, but transaction speed is worsened due to additional authentication steps
Solution Approach 1:
The system performs preliminary action by pre-storing multiple private keys securely in the hardware wallet device before they are needed for transactions. When a transaction requires multiple signatures, the hardware wallet can rapidly generate them using the pre-configured keys without requiring real-time coordination or additional authentication steps, thus maintaining security while improving transaction speed.
Data Source
AI summary
Systems and methods for dynamic security protocol modification are disclosed. In some examples, a system protects digital asset(s) stored at an address associated with a cryptographic wallet using a first security protocol. The first security protocol prevents access to the address unless multiple cryptographic keys (which are distributed across multiple computing devices) are used together to obtain the access to the address. The system receives a request to exit the first security protocol from a computing device of the computing devices. The request includes authentication information corresponding to a cryptographic key of the cryptographic keys, and verifies that the authentication information corresponds to the cryptographic key associated with the computing device to authenticate the request. The system automatically transitions from the first security protocol to a second security protocol in response to authenticating the request. The second security protocol is associated with consolidation of descriptors corresponding to the cryptographic keys.