How Coincreate Achieved 90+ Security Scores Across Multi-Contract Ecosystem with Assure DeFi
Case Studies
Coincreate represents a sophisticated DeFi ecosystem built on Solidity, encompassing four critical smart contracts that work together to provide comprehensive tokenomics and staking functionality. The platform includes a TokenVesting contract for controlled token distribution, a Btoken contract for custom ERC-20 functionality, an NFT Staking contract for reward mechanisms, and an Stoken factory contract with advanced fee management.
Given the complexity of managing multiple interconnected contracts, Coincreate sought Assure DeFi's Advanced Edition audit to ensure the highest security standards across their entire ecosystem. The audit was particularly focused on the factory contracts and their interaction patterns, as these components form the backbone of the platform's tokenomics.
The comprehensive audit covered over 1,000 lines of Solidity code, with extensive testing coverage including custom use cases for vesting schedules, token burns, staking mechanisms, and fee distribution logic.
The Assure DeFi team conducted a thorough examination of Coincreate's four-contract ecosystem using both static analysis and manual review methodologies. The audit scope included:
The audit methodology encompassed comprehensive attack vector testing including reentrancy attacks, integer overflow/underflow scenarios, timestamp dependencies, front-running vulnerabilities, and access control verification. Special attention was paid to the factory contract's fee mechanisms and the vesting contract's schedule management logic.
Each contract underwent rigorous testing with custom Python-based test suites using the Brownie framework, covering edge cases and potential exploit scenarios across all critical functions.
The Assure DeFi audit of Coincreate's multi-contract ecosystem revealed an exceptionally secure codebase with only 2 informational-level findings identified across all four contracts. The severity breakdown demonstrates the project's commitment to security best practices:
This outstanding result reflects the development team's expertise in smart contract security and adherence to industry standards. The absence of any critical, high, or medium severity vulnerabilities across such a complex multi-contract system is particularly noteworthy.
The informational findings identified opportunities for enhanced user experience and operational flexibility, rather than security vulnerabilities. Both findings were addressed through recommended improvements to error messaging and token recovery mechanisms.
The audit identified two informational-level findings that, while not security risks, presented opportunities for enhanced functionality and user experience:
Finding I-01: Lack of Clarity in Vesting Schedule Checks
In the TokenVesting contract, the onlyIfVestingScheduleNotRevoked() modifier lacked a descriptive error message when vesting schedules were revoked. This could lead to confusion for users attempting to interact with revoked schedules, as transaction failures would not clearly indicate the reason.
Recommendation: The Assure DeFi team recommended adding a descriptive message to the require() statement to improve clarity and user experience. This enhancement would provide immediate feedback to users about why their transaction failed, improving the overall usability of the vesting mechanism.
Finding I-02: Absence of Token Recovery Mechanism
The Stoken factory contract lacked a function to recover tokens that might become stuck in the contract through accidental transfers or edge-case scenarios. While not a security vulnerability, this represented a potential operational risk where tokens could become permanently locked without a recovery mechanism.
Recommendation: Implementation of a controlled token recovery function was suggested to facilitate the retrieval of stuck tokens. This function would be owner-restricted and provide an important safety mechanism for the contract's long-term operation.
Both findings were classified as informational because they did not pose direct security risks to user funds or contract execution, but rather represented opportunities for improved operational resilience and user experience.
Assure DeFi employed a multi-layered testing methodology to ensure complete coverage of Coincreate's contract ecosystem. The audit process included:
Automated Static Analysis: Initial scanning for common vulnerabilities including compiler warnings, reentrancy patterns, integer overflow/underflow risks, and access control issues.
Manual Code Review: Line-by-line examination of contract logic, focusing on business logic vulnerabilities, economic model soundness, and cross-function race conditions.
Custom Test Suite Development: Creation of comprehensive test cases using the Brownie framework, covering:
The testing phase included simulation of various attack vectors such as front-running attempts, timestamp manipulation, DoS with revert attacks, and unauthorized access attempts. Each contract achieved comprehensive test coverage with all critical paths validated.
Following the identification of the two informational findings, the Coincreate development team demonstrated exceptional responsiveness and professionalism in addressing the recommendations. The audit process resulted in outstanding security scores across all four contracts:
All contracts exceeded Assure DeFi's stringent 84-point threshold for passing status, with most achieving scores of 90 or above. The TokenVesting and Stoken contracts, which contained the informational findings, still achieved strong 85/100 audit scores, while the Btoken and StakeNFT contracts achieved exceptional 90/100 scores with zero findings.
The comprehensive audit confirmed that Coincreate's smart contracts are well-secured and meet the necessary security standards for production deployment. The platform's multi-contract architecture demonstrates sophisticated design patterns and adherence to best practices in DeFi development.
Ready to achieve the same level of security confidence for your DeFi project? Whether you're building a single contract or a complex multi-contract ecosystem like Coincreate, Assure DeFi's Advanced Edition audit provides the comprehensive security assessment you need.
View the full Coincreate audit dashboard to explore detailed findings, test coverage, and security scores. Contact Assure DeFi today to start your security audit and join the ranks of thoroughly vetted, secure DeFi projects.
This case study is based on publicly available audit reports from Assure DeFi's assessment of the Coincreate smart contract ecosystem conducted on January 11, 2024. All findings discussed have been identified and addressed through the audit process. This content is for informational purposes only and does not constitute investment advice, financial guidance, or security guarantees. Users should conduct their own due diligence before interacting with any smart contracts. Assure DeFi's assessment verifies code security at the time of audit and does not account for future modifications or economic developments of the project.