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Swift Metadata Stripping

Protection ID: swift_stripping

Swift Metadata Stripping removes Swift type information, debug symbols, and metadata from your application binary. This eliminates a rich source of information that reverse engineers use to understand your application's type hierarchy and structure.


Configuration

JSON
{
  "protections": {
    "swift_stripping": true
  }
}

How It Works

Swift applications contain extensive type metadata in the binary. This metadata includes type names, protocol conformances, generic type parameters, reflection information, and debug symbols. Tools like swift-demangle can decode this metadata to reconstruct the full type hierarchy of your application.

Swift Metadata Stripping removes this information from the binary. After protection, demangling tools cannot recover meaningful type names, and reflection-based analysis is significantly limited.

This complements Symbol Renaming by removing the Swift-specific metadata that would otherwise survive name obfuscation.


What Gets Stripped

Metadata TypeDescription
Swift symbolsMangled Swift symbol names
Debug infoDWARF debug information
Type metadataSwift type descriptors and conformance records

When to Use

Swift Metadata Stripping is recommended for all Swift applications. Swift binaries contain significantly more metadata than Objective-C binaries, and this metadata provides a detailed map of your application's architecture. Stripping it is a low-cost, high-value protection that complements other obfuscation measures.


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