{
    "signing": {
      "default": {
        "expiry": "8760h"
      },
      "profiles": {
        "intermediate_ca": {
          "usages": [
              "signing",
              "digital signature",
              "key encipherment",
              "cert sign",
              "crl sign",
              "server auth",
              "client auth"
          ],
          "expiry": "8760h",
          "ca_constraint": {
              "is_ca": true,
              "max_path_len": 0, 
              "max_path_len_zero": true
          }
        },
        "server": {
          "usages": [
            "signing",
            "digital signing",
            "key encipherment",
            "server auth"
          ],
          "expiry": "8760h"
        },
        "client": {
          "usages": [
            "signing",
            "digital signature",
            "key encipherment", 
            "client auth"
          ],
          "expiry": "8760h"
        }
      }
    }
  }