Rate-Limited Token Minting for Secure Blockchain Supply Control
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Solution Overview
Problem
Existing blockchain systems face security vulnerabilities due to uncontrolled token minting, which can be exploited by malicious users to dilute the value of tokens, compromising the trust in the system.
Innovation Solution
Implementing a rate-limited token minter with a configured maximum minting allowance and replenishment rate, allowing for secure token minting by checking against current allowances and using reserve allowances when necessary, thereby limiting the impact of potential compromises.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If token minting is allowed without restrictions, then token supply flexibility is improved, but system security deteriorates due to potential malicious exploitation
Solution Approach 1:
The patent implements dynamic rate limiting where the token minting rate is adjusted based on time-based parameters. The system transitions from static unlimited minting to dynamic controlled minting, where the allowed minting rate changes over time according to configured rate limits, resolving the contradiction between flexibility and security
Solution Approach 2:
The patent changes the parameter of token minting from unrestricted to rate-limited by introducing time-based rate limit parameters. By modifying the minting parameters to include rate limits and time-based constraints, the system achieves both supply flexibility and security simultaneously
2Productivity
If a malicious user obtains access rights to a token minter, then unlimited token generation is possible, but token value stability deteriorates
Solution Approach 1:
The patent applies preliminary rate limiting constraints before token minting occurs. By pre-configuring rate limits and time-based parameters, the system prevents excessive token generation even if a malicious user gains access, thereby maintaining token value stability while allowing legitimate productivity
Solution Approach 2:
The patent introduces rate limiting as an intermediary mechanism between the token minter and the blockchain. This intermediary layer enforces time-based constraints on token generation, preventing direct unlimited minting while allowing controlled productivity, thus protecting token value stability
3Reliability
If rate limiting is implemented on token minting, then system security is improved, but minting efficiency deteriorates due to additional validation steps
Solution Approach 1:
The patent implements self-service rate limiting where the token minter automatically checks and enforces its own rate limits without requiring external validation. The time-based rate limiting logic is embedded in the minter itself, allowing it to self-regulate token generation while maintaining security, thus minimizing efficiency loss from validation overhead
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for minting tokens on a blockchain. An example method generally includes receiving, at a token minter from a requesting party, a request to mint a quantity of tokens on a blockchain. Based at least on an identity of the requesting party and a time-based limit associated with the token minter, a determination that the requested quantity of tokens are mintable by the token minter is made. Based on the determination that the requested quantity of tokens are mintable by the token minter, a smart contract is executed to mint at least some tokens from the requested quantity of tokens on the blockchain.