Authenticator Backup [ROOT]

This very small app enables users with root access to backup the masterkeys from the Google Authenticator App to migrate to a new device or a different authenticator app.

The app also creates an andOTP backup file to simplify migration. The file is saved to /sdcard/andOTP_import.json.

Google Authenticator DB Schema

accounts (_id INTEGER PRIMARY KEY,
          email TEXT NOT NULL,
          secret TEXT NOT NULL,
          counter INTEGER DEFAULT 0,
          type INTEGER,
          provider INTEGER DEFAULT 0,
          issuer TEXT DEFAULT NULL,
          original_name TEXT DEFAULT NULL);

type INTEGER

integer value	description
0	TOTP
1	HOTP