ca.conf.sample

{
  "ca-list":
  [
    {
        "ca-prefix": "/example",
        "issuing-freshness": "720",
        "validity-period": "360",
        "ca-anchor": "/example/KEY/%9A%E0%C6%C6%09%7C%92i/self/%FD%00%00%01Z%B0%2AJ%B4",
        "supported-challenges":
        [
            { "type": "PIN" }
        ]
    }
  ]
}