A sidewalk depiction of IBM's Peace, Love, and Linux advertising campaign in 2001. The Linux Foundation is launching "sigstore," a free-to-use software signing certificate authority open to all developers. ("Peace, Love, and Linux" by kino-eye is licensed under CC BY-NC-SA 2.0)

The Linux Foundation is launching "sigstore," a free-to-use software signing certificate authority open to all developers.

Code signing cryptographically authenticates that software has not been tampered with before installation. It can be a valuable tool to prevent hackers from co-opting patching systems or software distribution to deliver malware.

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