Code Signing

ELI5 — The Vibe Check

Code signing proves that your code is genuinely from you and nobody tampered with it between your computer and the user's device. It's like a wax seal on a medieval letter, but with cryptography instead of hot wax.

Real Talk

A security mechanism that uses digital certificates to verify the identity of the software developer and ensure the code hasn't been altered since signing. Both iOS and Android require code signing for app distribution. The process involves a certificate authority, a private key, and a provisioning profile (iOS) or keystore (Android).

When You'll Hear This

"Code signing errors are the bane of iOS development — 90% of build failures are certificate issues." / "Set up code signing in CI so your automated builds can produce signed artifacts."