Armory protobuf format

message Ping {
  required string version = 1;
}

message Pong {
  required string version = 1;
  repeated Wallet wallets = 2;
}

message SignatureRequest {
  required Wallet wallet = 1;
  required string txDP = 2;
  optional string password = 3;
}

message SignatureResponse {
  enum SignatureType {
    PARTIAL = 1;
    FULL = 2;
  }

  required SignatureType signatureType = 1;
  required string txDP = 2;
}

message Information {
  required string message = 1;
}

message Error {
  required boolean critical = 1;
  required string message = 2;
}

message Wallet {
  required string walletUniqueB58 = 1;
  required int highestIndex = 2;
}