cfssl/transport/example/config_auth.json

{
    "auth_keys": {
        "client": {
            "type": "standard",
            "key": "52abb3ac91971bb72bce17e7a289cd04476490b19e0d8eb7810dc42d4ac16c41"
        },
        "server": {
            "type": "standard",
            "key": "4f4f26686209f672e0ec7b19cbbc8b6d94fdd12cc0b20326f9005d5f234e6e3e"
        }
    },
    "signing": {
        "default": {
            "expiry": "168h"
        },
        "profiles": {
            "client": {
                "auth_key": "client",
                "expiry": "1h",
                "usages": [
                    "signing",
                    "key encipherment",
                    "client auth"
                ]
            },
            "server": {
                "auth_key": "server",
                "expiry": "8760h",
                "usages": [
                    "signing",
                    "key encipherment",
                    "server auth"
                ]
            }
        }
    }
}