Cryptographic Defense: How SSH and GPG Signatures Lock Down Your Git Workflow

Unauthorized commits and force-push attacks represent significant security risks to your codebase, potentially allowing malicious code to be injected without detection. This guide demonstrates how SSH authentication combined with GPG commit signing creates a cryptographic barrier that ensures only authorized developers can push commits and enables GitHub to verify the authenticity of every change. For teams handling sensitive code, this two-layer approach is essential for maintaining code integrity and establishing a trustworthy development history.