Dotfuscator

Dotfuscator is a post-development recompilation system for .NET applications developed by PreEmptive Solutions. It analyzes applications and makes them smaller, faster and harder to reverse-engineer. The obfuscation techniques used by Dotfuscator include renaming (replacing meaningful identifiers with short meaningless names), "overload induction" (renaming many methods to the same name, relying on overload resolution to choose the right meaning^[1]); changing control flow, and encryption of string literals. Dotfuscator also provides pruning, linking, and watermarking features.

Dotfuscator's method of "overload induction" was patented^[2] and is also used in PreEmptive's Java-language obfuscator, DashO.^[3]

As with other obfuscators, Dotfuscator makes life more difficult for decompilers, but it does not claim to provide 100% protection.

History

Dotfuscator was developed and released in 2003 by PreEmptive Solutions in response to Microsoft's need for obfuscation of their .NET framework inside Visual Studio.

Since 2003, the Community Edition has been included with Microsoft Visual Studio.^[4]

In 2012, the Community Edition was expanded to offer exception analytics.^[5] For the first time, a repository and rules engine that aggregates and analyzes incoming exception alerts was included with Team Foundation Server 2012. When rules are triggered, work items are created or updated, providing near real-time visibility into production.

References

External links

• http://msdn.microsoft.com/en-us/library/ms227240.aspx
• http://www.preemptive.com/products/dotfuscator/compare-editions
• http://www.preemptive.com/company/history