HONG KONG INU
Smart Contract Audit Report
HONG KONG INU is a new ERC-20 on Ethereum.
For this audit, we reviewed the project team's HONGKONGINU contract at 0x064153b77108a93dd0ad1d3dd60057868f9d1b93 on the Ethereum Mainnet.
An Informational finding was identified and the team may want to review it.
Date: June 2nd, 2023.
Finding #1 - HONGKONGINU - InformationalDescription: Although the SafeMath library is utilized, the contract is deployed with Solidity v0.8.19 which has built-in overflow checks.
Recommendation: SafeMath could be safely removed to reduce contract size and deployment costs.
- The total supply of the token is set to 10 billion $HONG [10,000,000,000].
- No mint or burn functions are accessible, though the circulating supply can be decreased by sending tokens to the 0x..dead address.
- At the time of writing this report, there are 365 total token holders. The token allocation is as follows:
- 25% of the total supply has been sent to the 0x..dead address.
- The next five EOAs own a cumulative 17% of the total supply.
- 2.03% of the total supply is in Uniswap liquidity.
- Of that liquidity, 99.69% of the LP tokens are permanently locked in a TrustSwap token locking contract.
- Ownership has been renounced by the team.
- Although a Buy fee and Sell fee exist in the contract, their percentages are permanently set to zero.
- The tokens previously collected through the Buy fee and Sell fee were sent to the owner.
- The owner was previously able to set the Buy fee and Sell fee to any percentages at any time.
- The owner was previously able to exclude and include accounts from the transfer fees at any time.
- As the contract is deployed with Solidity v0.8.19, it is protected from overflows/underflows.
- The contract complies with the ERC-20 token standard.
|Arbitrary Jump/Storage Write||N/A||PASS|
|Centralization of Control||Ownership has been renounced by the team.||PASS|
|Delegate Call to Untrusted Contract||N/A||PASS|
|Dependence on Predictable Variables||N/A||PASS|
|Improper Authorization Scheme||N/A||PASS|
|Outdated Compiler Version||N/A||PASS|
|Overall Contract Safety||PASS|
($) = payable function # = non-constant function Int = Internal Ext = External Pub = Public + [Int] IUniswapV2Factory - [Ext] feeTo - [Ext] feeToSetter - [Ext] getPair - [Ext] allPairs - [Ext] allPairsLength - [Ext] createPair # - [Ext] setFeeTo # - [Ext] setFeeToSetter # + [Int] IUniswapV2Router01 - [Ext] factory - [Ext] WETH - [Ext] addLiquidity # - [Ext] addLiquidityETH ($) - [Ext] removeLiquidity # - [Ext] removeLiquidityETH # - [Ext] removeLiquidityWithPermit # - [Ext] removeLiquidityETHWithPermit # - [Ext] swapExactTokensForTokens # - [Ext] swapTokensForExactTokens # - [Ext] swapExactETHForTokens ($) - [Ext] swapTokensForExactETH # - [Ext] swapExactTokensForETH # - [Ext] swapETHForExactTokens ($) - [Ext] quote - [Ext] getAmountOut - [Ext] getAmountIn - [Ext] getAmountsOut - [Ext] getAmountsIn + [Int] IUniswapV2Router02 (IUniswapV2Router01) - [Ext] removeLiquidityETHSupportingFeeOnTransferTokens # - [Ext] removeLiquidityETHWithPermitSupportingFeeOnTransferTokens # - [Ext] swapExactTokensForTokensSupportingFeeOnTransferTokens # - [Ext] swapExactETHForTokensSupportingFeeOnTransferTokens ($) - [Ext] swapExactTokensForETHSupportingFeeOnTransferTokens # + [Lib] SafeMath - [Int] tryAdd - [Int] trySub - [Int] tryMul - [Int] tryDiv - [Int] tryMod - [Int] add - [Int] sub - [Int] mul - [Int] div - [Int] mod - [Int] sub - [Int] div - [Int] mod + ReentrancyGuard - [Pub]
# - [Prv] _nonReentrantBefore # - [Prv] _nonReentrantAfter # + Context - [Int] _msgSender - [Int] _msgData + Ownable (Context) - [Pub] # - [Pub] owner - [Int] _checkOwner - [Pub] renounceOwnership # - modifiers: onlyOwner - [Pub] transferOwnership # - modifiers: onlyOwner - [Int] _transferOwnership # + [Int] IERC20 - [Ext] totalSupply - [Ext] balanceOf - [Ext] transfer # - [Ext] allowance - [Ext] approve # - [Ext] transferFrom # + [Int] IERC20Metadata (IERC20) - [Ext] name - [Ext] symbol - [Ext] decimals + HONGKONGINU (Context, IERC20, Ownable, ReentrancyGuard) - [Pub] # - [Ext] name - [Ext] symbol - [Ext] decimals - [Ext] totalSupply - [Ext] balanceOf - [Pub] transfer # - modifiers: nonReentrant - [Pub] transferFrom # - modifiers: nonReentrant - [Ext] allowance - [Ext] approve # - [Pub] increaseAllowance # - [Pub] decreaseAllowance # - [Int] _transfer # - [Int] _approve # - [Ext] setBuyFee # - modifiers: onlyOwner - [Ext] setSellFee # - modifiers: onlyOwner - [Ext] updateAdress # - modifiers: onlyOwner
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Typically, a smart contract audit is a comprehensive review process designed to discover logical errors, security vulnerabilities, and optimization opportunities within code. A SourceHat Audit takes this a step further by verifying economic logic to ensure the stability of smart contracts and highlighting privileged functionality to create a report that is easy to understand for developers and community members alike.
How Do I Interpret the Findings?
Each of our Findings will be labeled with a Severity level. We always recommend the team resolve High, Medium, and Low severity findings prior to deploying the code to the mainnet. Here is a breakdown on what each Severity level means for the project:
- High severity indicates that the issue puts a large number of users' funds at risk and has a high probability of exploitation, or the smart contract contains serious logical issues which can prevent the code from operating as intended.
- Medium severity issues are those which place at least some users' funds at risk and has a medium to high probability of exploitation.
- Low severity issues have a relatively minor risk association; these issues have a low probability of occurring or may have a minimal impact.
- Informational issues pose no immediate risk, but inform the project team of opportunities for gas optimizations and following smart contract security best practices.