ZARP Token - Smart Contract Audit Report

Summary

ZARP Stablecoin Audit Report ZARP ($ZARP) is a new Stablecoin on the Ethereum Blockchain.

The ZARP Stablecoin contract is deployed at 0x8CB24ed2e4f7e2065f4eB2bE5f6B0064B1919850 on the Ethereum Blockchain mainnet.

Notes on the Contract:
  • There was no token allocation for our team to analyze as the project was recently deployed.
  • The contract utilizes a Minter role, Burner role, Verifier role, and Default Admin role. The assigned addresses to these roles have access to certain functionality of the contract.
  • Any Minter address has the ability to mint any amount of tokens to any Verified address at any time.
  • Any Burner address can burn their own tokens to reduce the total supply. Only a Verified address can send tokens to a Burner address.
  • Although the contract utilizes the Burner role, any user also has the ability to burn their own tokens to reduce the total supply.
  • The Default Admin role previously had the ability to pause/unpause all trading at any time. As the Default Admin role has been transferred to the 0x00 address, this feature can no longer be utilized.
  • The contract complies with the ERC20 standard.
  • As the project is implemented with Solidity v0.8.7, it is protected from overflows.
Audit Findings Summary
  • No external threats were identified.
  • Date: October 18th, 2021

Audit Results

Vulnerability CategoryNotesResult
Arbitrary Storage WriteN/APASS
Arbitrary JumpN/APASS
Delegate Call to Untrusted ContractN/APASS
Dependence on Predictable VariablesN/APASS
Deprecated OpcodesN/APASS
Ether ThiefN/APASS
ExceptionsN/APASS
External CallsN/APASS
Flash LoansN/APASS
Integer Over/UnderflowN/APASS
Multiple SendsN/APASS
OraclesN/APASS
SuicideN/APASS
State Change External CallsN/APASS
Unchecked RetvalN/APASS
User Supplied AssertionN/APASS
Critical Solidity CompilerN/APASS
Overall Contract Safety PASS

Function Graph

ERC20 Token Graph


Inheritence Chart

Multi-file Token


Functions Overview


 ($) = payable function
 # = non-constant function
 
 + [Int] IAccessControl 
    - [Ext] hasRole
    - [Ext] getRoleAdmin
    - [Ext] grantRole #
    - [Ext] revokeRole #
    - [Ext] renounceRole #

 +  Context 
    - [Int] _msgSender
    - [Int] _msgData

 + [Lib] Strings 
    - [Int] toString
    - [Int] toHexString
    - [Int] toHexString

 + [Int] IERC165 
    - [Ext] supportsInterface

 +  ERC165 (IERC165)
    - [Pub] supportsInterface

 +  AccessControl (Context, IAccessControl, ERC165)
    - [Pub] supportsInterface
    - [Pub] hasRole
    - [Int] _checkRole
    - [Pub] getRoleAdmin
    - [Pub] grantRole #
       - modifiers: onlyRole
    - [Pub] revokeRole #
       - modifiers: onlyRole
    - [Pub] renounceRole #
    - [Int] _setupRole #
    - [Int] _setRoleAdmin #
    - [Prv] _grantRole #
    - [Prv] _revokeRole #

 +  Pausable (Context)
    - [Pub]  #
    - [Pub] paused
    - [Int] _pause #
       - modifiers: whenNotPaused
    - [Int] _unpause #
       - modifiers: whenPaused

 + [Int] IERC20 
    - [Ext] totalSupply
    - [Ext] balanceOf
    - [Ext] transfer #
    - [Ext] allowance
    - [Ext] approve #
    - [Ext] transferFrom #

 + [Int] IERC20Metadata (IERC20)
    - [Ext] name
    - [Ext] symbol
    - [Ext] decimals

 +  ERC20 (Context, IERC20, IERC20Metadata)
    - [Pub]  #
    - [Pub] name
    - [Pub] symbol
    - [Pub] decimals
    - [Pub] totalSupply
    - [Pub] balanceOf
    - [Pub] transfer #
    - [Pub] allowance
    - [Pub] approve #
    - [Pub] transferFrom #
    - [Pub] increaseAllowance #
    - [Pub] decreaseAllowance #
    - [Int] _transfer #
    - [Int] _mint #
    - [Int] _burn #
    - [Int] _approve #
    - [Int] _beforeTokenTransfer #
    - [Int] _afterTokenTransfer #

 +  ERC20Burnable (Context, ERC20)
    - [Pub] burn #
    - [Pub] burnFrom #

 +  ZARP (ERC20, ERC20Burnable, AccessControl, Pausable)
    - [Pub]  #
       - modifiers: ERC20
    - [Pub] verify #
       - modifiers: whenNotPaused,onlyRole
    - [Pub] removeVerification #
       - modifiers: whenNotPaused,onlyRole
    - [Pub] isVerified
    - [Pub] mint #
       - modifiers: onlyRole
    - [Pub] burn #
       - modifiers: onlyRole
    - [Pub] burnFrom #
       - modifiers: onlyRole
    - [Pub] transfer #
    - [Pub] pause #
       - modifiers: onlyRole
    - [Pub] unpause #
       - modifiers: onlyRole
    - [Int] _beforeTokenTransfer #
       - modifiers: whenNotPaused