Blockchain Wallet Security via Random Temporal Windowing
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Solution Overview
Problem
The existing systems for protecting digital wallets holding blockchain-based tokens are vulnerable to cyber-attacks and market manipulation, as they rely on centralized concentrations of digital assets, which are difficult to secure while maintaining real-time trading and oversight capabilities.
Innovation Solution
A multi-layer cybersecurity system that employs random temporal windowing in conjunction with multi-party computation and multi-signature rekeying to protect blockchain-based tokens. This system diversifies, separates, and distributes the private key signatures across geographically distinct devices, using a countdown timer to randomly rotate the MPC shares and rekey the private keys, thereby enhancing security while allowing real-time control and recovery by oversight managers or token issuers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If centralized concentrations of digital assets are used to enable real-time trading and oversight, then trading efficiency and oversight capability are improved, but security against cyber-attacks deteriorates
Solution Approach 1:
The patent segments the private key into multiple shares using secret sharing schemes, distributing them across multiple geographically distinct devices. No single device holds the complete private key, eliminating the security vulnerability of centralized asset concentration while enabling real-time trading through distributed multi-party computation.
Solution Approach 2:
The patent introduces trusted overseers as intermediaries who facilitate transactions through multi-signature mechanisms. These overseers verify and approve transactions without having direct access to the private key shares, enabling real-time oversight and trading while maintaining security through the intermediary layer.
2Reliability
If private keys are distributed across multiple devices to enhance security, then security is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal multi-party computation framework that handles multiple functions (transaction approval, key management, oversight) through a standardized protocol. This multi-functional system reduces complexity by providing a single unified interface for diverse security operations rather than separate mechanisms for each function.
Solution Approach 2:
The patent implements feedback mechanisms where overseers and network nodes continuously monitor and verify transactions. This feedback loop ensures automatic detection and correction of potential security issues, reducing the need for complex manual security management while maintaining high security standards.
3Reliability
If random temporal windowing is used to rotate MPC shares, then security against cyber-attacks is improved, but operational complexity increases
Solution Approach 1:
The patent implements periodic rotation of MPC shares at randomly determined time intervals. This periodic action automatically refreshes the cryptographic material, limiting the window of opportunity for attackers while maintaining security through systematic, rule-based operations rather than ad-hoc complex procedures.
Data Source
AI summary
A multi-layer cybersecurity system and method for protecting digital wallets holding blockchain-based tokens traded on a financial platform. Specifically, the invention employs random temporal windowing in relation to: (1) reshuffling designated machines running a multi-party computation protocol; and (2) rekeying of private keys held in both hot and cold environments. Furthermore, environmental based signature weighting is applied to the keys. As a result, cold signers can do anything hot signers can but hot signers cannot do what cold signers can such as taking control, recovering control, or reconstitute the holdings of the wallet in real time, if necessary.