chromium/chrome/test/data/extensions/zipfile_installer/public_key/manifest.json

{
  "name": "Package with public key",
  "version": "1.0",
  "manifest_version": 2,
  "description": "Good (valid) package with public key to be used for unit testing.",
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApA6hdh9nV5J3PQa4jcigI4WumJCiTjYFjRNxHV8d5SbgLM5cCySENvAyghsZ2B0Xz19GgErkJlAfoJURWp71RSou3qhpFN6eWguhrbOlP+uwpeISgPVTAf1kpVhigZZP18DfL4PSCY/04RRWsFAq41R3YHB8EIbcfkQz1H++ZM93SQAA+PnON9933JdjmZOgUBbFKGcz9KGp/fDPjOKTgVCgJFyMfDTdx4mYDziy+/uJIyqUy7gV0GMdR67nHeRATuFC3wHZH93Rs7EP/PdlXB3KbmU8D173YJW4lmQkfcfnrqX/CSM+BnYfiyjmLo7HQ25+kw6RSfptW1SzwuOTzwIDAQAB",
  "background": {
    "scripts": ["background.js"]
  }
}