A signed commit is a source code commit that includes cryptographic proof tying the change to a specific signing identity. It matters because source integrity is stronger when teams can verify who authored or approved important code changes.
What is Signed Commit?
Signed commits help reduce impersonation, tampering ambiguity, and some forms of source control abuse. They are especially useful for sensitive repositories, release branches, and workflows that need stronger identity assurance around code changes.
What Signed Commit Commonly Supports
Common uses include source integrity, contributor verification, branch protection, and release review.
Signed Commit vs. Unsigned Source Commit
A signed commit provides stronger evidence about who produced the change. An unsigned commit relies more heavily on account trust and repository access control alone.
Frequently Asked Questions
Why sign commits?
Because it becomes easier to prove change origin and harder for silent source tampering to blend in.
Does commit signing stop all source abuse?
No. Compromised signing keys or accounts can still create risk, so it works best with broader controls.
