About Our Quick Audit
A token audit is an in-depth examination of a smart contract’s code to identify potential vulnerabilities, inefficiencies, and areas for improvement. By analyzing the code, the audit helps to ensure that the smart contract adheres to established token standards, complies with best practices, and functions as intended.
The token audit checks for various aspects, including but not limited to:
- Compliance with token standards, such as ERC-20, ERC-721, or ERC-1155
- Protection against reentrancy attacks and other security vulnerabilities
- Proper access control and function visibility
- Efficient gas usage and optimization
- Proper error handling and event emission
- Upgradability and centralization risks
- Control over token minting, burning, pausing, and transfers
It’s important to note that while a token audit can provide valuable insights, it does not guarantee that a smart contract is entirely secure or free from issues. The audit should be used as a supplementary tool to help identify potential areas of concern, but it should not be relied upon as the sole method of evaluating a smart contract’s safety or functionality.
Users should be aware that the token audit does not assign a score or ranking to the smart contract. The audit simply presents the results of the analysis, allowing users to make informed decisions based on the findings.
Please use the token audit at your own risk and exercise caution when interacting with smart contracts. It is always recommended to consult with experienced developers or conduct additional research before investing in or using any smart contract.
Token Audit
Audit Rule Definitions
- Compliance with token standards: Ensure the smart contract adheres to established token standards, such as ERC-20, ERC-721, or ERC-1155.
- Reentrancy vulnerability: Check for potential reentrancy attacks, where a malicious contract can repeatedly call a function before the previous call has completed.
- Access control: Ensure that the contract has proper access control mechanisms in place to restrict who can call certain functions.
- Integer overflow/underflow: Check for potential issues with arithmetic operations, such as integer overflows or underflows, that could lead to unexpected results.
- Unprotected functions: Identify any public or external functions that should be restricted, as they may expose the contract to potential attacks.
- Proper use of visibility: Verify that functions and state variables are declared with the appropriate visibility (public, private, internal, or external) to minimize the attack surface.
- Proper use of Solidity modifiers: Check for the correct usage of Solidity modifiers, such as onlyOwner, nonReentrant, and payable, to enforce function requirements.
- Gas optimization: Analyze the contract’s gas usage and identify opportunities for optimization to reduce transaction costs.
- Fallback function behavior: Evaluate the behavior of the contract’s fallback function, if it exists, to ensure it doesn’t expose vulnerabilities or consume excessive gas.
- Proper event emission: Ensure that the contract emits appropriate events to facilitate tracking and transparency.
- Dead code: Identify and remove any unused or unreachable code within the contract.
- Error handling: Check for proper error handling, including the use of require, revert, or assert statements, to provide meaningful error messages and prevent unexpected contract behavior.
- Upgradability: If the contract is designed to be upgradable, ensure that the upgrade mechanism is secure and can’t be exploited by malicious actors.
- Centralization risks: Evaluate the contract’s design for potential centralization risks, such as single points of failure or undue control by a single party.
- Minting control: Ensure the contract has proper control over token minting processes, if applicable.
- Burning control: Ensure the contract has proper control over token burning processes, if applicable.
- Token pause control: Check if the contract allows the owner to pause specific functions in case of a security issue or other critical situation.
- Token transfer control: Ensure the contract correctly handles token transfers and prevents unauthorized transfers.
- Token approval control: Check the contract’s implementation of token approval processes and allowance management.
- Emergency stop mechanism: Verify that the contract has an emergency stop mechanism that allows the owner to pause specific functions in case of a security issue or other critical situation.