Add U2F support

docs/schema/ServerDataStatus.schema.json

@@ -70,6 +70,9 @@
     "dh": {
       "$ref": "#/definitions/ServerDhKey"
     },
+    "u2f": {
+      "$ref": "#/definitions/U2fData"
+    },
     "fullVersion": {
       "type": "number"
     },
@@ -933,6 +936,51 @@
         "v"
       ],
       "title": "ServerDhKey"
+    },
+    "U2fData": {
+      "type": "object",
+      "properties": {
+        "v": {
+          "type": "string"
+        },
+        "d": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/U2fItem"
+          }
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "d",
+        "v"
+      ],
+      "title": "U2fData"
+    },
+    "U2fItem": {
+      "type": "object",
+      "properties": {
+        "u": {
+          "type": "string"
+        },
+        "a": {
+          "type": "number"
+        },
+        "h": {
+          "type": "string"
+        },
+        "p": {
+          "type": "string"
+        }
+      },
+      "additionalProperties": false,
+      "required": [
+        "a",
+        "h",
+        "p",
+        "u"
+      ],
+      "title": "U2fItem"
     }
   },
   "$schema": "http://json-schema.org/draft-07/schema#",