Building a Zero-Trust, Tamper-Evident Audit Trail in EF Core (And Why Standard Logs Fail)
The article discusses the limitations of traditional audit logging systems in Entity Framework Core and introduces a new approach called EfCore.TamperEvident. This method utilizes cryptographic hash chaining to create a tamper-evident audit trail, addressing vulnerabilities that could be exploited by database administrators or developers. The author outlines the engineering challenges faced while implementing this solution, including hash recalculation attacks and concurrency issues.
- ▪Traditional audit logs can be manipulated by users with direct database access, undermining their reliability.
- ▪EfCore.TamperEvident employs cryptographic hash chaining to ensure that each audit log is linked to the previous one, making tampering detectable.
- ▪The implementation of this solution required overcoming significant engineering hurdles, including handling hash recalculation attacks and ensuring data integrity during concurrent transactions.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3832967) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Furkan Akça Posted on May 17 Building a Zero-Trust, Tamper-Evident Audit Trail in EF Core (And Why Standard Logs Fail) #dotnet #security #architecture #blockchain Most of us have built an audit logging system at some point. The standard playbook is predictable: you hook into Entity Framework Core's SaveChanges interceptor or write a database trigger, capture the OldValues and NewValues as JSON, stamp it with a UserId and Timestamp, and save it to an AuditLogs table.
…
Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
Discussion
0 commentsMore from DEV.to (Top)
