Hydro Token (HYDRO) security audit, conducted by the Callisto Network Security Department in November 2018.
Hydro (HYDRO) Specificities
Audit Request
HYDRO ERC-20 token contract.
Source Code:
Disclosure policy:
Platform:
ETH.
Complexity:
Low.
Hydro Token (HYDRO) Smart Contract Security Audit Report
Are Your Funds Safe?
1. In scope
- HydroToken.sol github commit hash 01146703bddae7658cac9afa3a8009d07fdef819.
2. Findings
In total, 2 issues were reported including:
-
1 low severity issues.
-
1 minor observation.
No critical security issues were found.
2.1. Known vulnerabilities of ERC-20 token
Severity: low.
Description:
-
It is possible to double withdrawal attack. More details here.
- Lack of transaction handling mechanism issue. WARNING! This is a very common issue and it already caused millions of dollars losses for lots of token users! More details here.
2.2. Representation
Severity: minor observation.
Description:
Better use decimal variable in calculating totalSuplay amount.
3. Conclusion
The contract can be deployed.
4. Revealing audit reports
- https://gist.github.com/yuriy77k/bcdc452765c91d75ebc6b9e303b4c0a8
- https://gist.github.com/yuriy77k/31c5afe97574047f8a5c842df9776432
- https://gist.github.com/yuriy77k/2c309e2dfe1b3ea5190fa12e3035d84c
Appendix
Smart Contract Audits by Callisto Network.
Miscellaneous
Our Most Popular Audit Reports.
Trust the Blockchain, Audit the Smart Contracts.
Follow Callisto’s Security Department on Twitter to get our latest news and updates!