# Copyright (c) 2018 Yubico AB # All rights reserved. # # Redistribution and use in source and binary forms, with or # without modification, are permitted provided that the following # conditions are met: # # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following # disclaimer in the documentation and/or other materials provided # with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. """ Connects to the first FIDO device found (starts from USB, then looks into NFC), creates a new credential for it, and authenticates the credential. This works with both FIDO 2.0 devices as well as with U2F devices. On Windows, the native WebAuthn API will be used. """ import time import configparser gpie = True if gpie: import RPi.GPIO as GPIO import pickle import psycopg2 import fido2.webauthn from fido2.hid import CtapHidDevice from fido2.client import Fido2Client, WindowsClient, UserInteraction from fido2.server import Fido2Server from getpass import getpass import sys import ctypes from fido2.ctap2 import Ctap2 import nfc config = configparser.ConfigParser() config.read('config.ini') dbusername = config.get('Setup', 'dbusername') dbpassword = config.get('Setup', 'dbpassword') dbname = config.get('Setup', 'dbname') dbhost = config.get('Setup', 'dbhost') doorID = config.get('Setup', 'doorID') gotAaguid = None if gpie: GPIO.setmode(GPIO.BOARD) secLevel = 0 user_id = None greenLed = 8 redLed = 7 door = 40 if gpie: # badCredentials = False GPIO.setup(greenLed, GPIO.OUT) GPIO.output(greenLed, GPIO.LOW) GPIO.setup(redLed, GPIO.OUT) GPIO.output(redLed, GPIO.HIGH) time.sleep(1) GPIO.output(redLed, GPIO.LOW) time.sleep(0.2) GPIO.output(greenLed, GPIO.HIGH) time.sleep(1) GPIO.output(greenLed, GPIO.LOW) time.sleep(0.2) GPIO.setup(door, GPIO.OUT) GPIO.output(door, GPIO.LOW) def badCred(): print("Bad credential!") # badCredentials = True # time.sleep(2) class CliInteraction(UserInteraction): def prompt_up(self): print("\nTouch your authenticator device now...\n") def request_pin(self, permissions, rd_id): return getpass("Enter PIN: ") def request_uv(self, permissions, rd_id): print("User Verification required.") return True try: clf = nfc.ContactlessFrontend('usb') # Ensure this matches your connection print("NFC reader initialized.") except Exception as e: print("Failed to initialize NFC reader:", e) while True: if gpie: GPIO.output(door, GPIO.LOW) # GPIO.output(14, GPIO.LOW) print("Waiting for device...") badCredentials = False if gpie: GPIO.output(redLed, GPIO.HIGH) while True: try: # GPIO.output(14, GPIO.LOW) dev = next(CtapHidDevice.list_devices(), None) if dev: ctap2 = Ctap2(dev) info = ctap2.get_info() gotAaguid = info.aaguid print(str(gotAaguid)) break time.sleep(0.1) except Exception as e: print(e) # Handle user interaction try: server = Fido2Server({"id": "example.com", "name": "Example RP"}, attestation="direct") uv = "discouraged" # Set up a FIDO 2 client using the origin https://example.com client = Fido2Client(dev, "https://example.com", user_interaction=CliInteraction()) # Replace these variables with your connection parameters user = dbusername password = dbpassword host = dbhost # Define the SQL query for retrieving data select_query = ''' SELECT "AAGUID", user_id, credential_id, pk_algo, pk_1, pk_3, pk_neg1, pk_neg2, pk_neg3, pickled FROM credential_data WHERE "AAGUID" = %s; ''' # Function to connect to the PostgreSQL database and retrieve data def fetch_data(aaguid): conn = None try: # Connect to the PostgreSQL server conn = psycopg2.connect(dbname=dbname, user=user, password=password, host=host) cur = conn.cursor() # Execute the SQL query cur.execute(select_query, (gotAaguid,)) # Fetch the results result = None result = cur.fetchone() if result: data = { "AAGUID": result[0], "user_id": result[1], "credential_id": result[2], "pk_algo": result[3], "pk_1": result[4], "pk_3": result[5], "pk_neg1": result[6], "pk_neg2": result[7], "pk_neg3": result[8], "pickled": result[9] } return data else: print("No data found for AAGUID:", aaguid) badCred() raise Exception return None # Close communication with the database cur.close() except (Exception, psycopg2.DatabaseError) as error: print(error) raise Exception finally: if conn is not None: conn.close() # Example usage: Fetch data for a specific AAGUID and store in variables aaguid_data = None aaguid_data = fetch_data("") user_id = aaguid_data["user_id"] if aaguid_data: # Store each piece of data into a separate variable testa = aaguid_data["AAGUID"] cred_id = aaguid_data["credential_id"] pk_algo = aaguid_data["pk_algo"] pk_1 = aaguid_data["pk_1"] pk_3 = aaguid_data["pk_3"] pk_neg1 = aaguid_data["pk_neg1"] pk_neg2 = aaguid_data["pk_neg2"] pk_neg3 = aaguid_data["pk_neg3"] pickled = aaguid_data["pickled"] if badCredentials: raise Exception credentials = pickle.loads(pickled) # Prepare parameters for getAssertion request_options, state = server.authenticate_begin(credentials, user_verification=uv) # Authenticate the credential result = client.get_assertion(request_options["publicKey"]) # Only one cred in allowCredentials, only one response. result = result.get_response(0) # Complete authenticator server.authenticate_complete( state, credentials, result.credential_id, result.client_data, result.authenticator_data, result.signature, ) print("Credential authenticated!") print("CLIENT DATA:", result.client_data) print() print("AUTH DATA:", result.authenticator_data) # GPIO.output(14, GPIO.LOW) conn = None try: # Connect to the PostgreSQL server conn = psycopg2.connect(dbname=dbname, user=user, password=password, host=host) cur = conn.cursor() select_query = ''' SELECT sec_level FROM users WHERE "user_id" = %s; ''' # Execute the SQL query cur.execute(select_query, (str(user_id))) # Fetch the results result = None result = cur.fetchone() if result: userSecLevel = result[0] else: badCred() raise Exception # Close communication with the database cur.close() except (Exception, psycopg2.DatabaseError) as error: print(error) raise Exception finally: if conn is not None: conn.close() conn = None try: # Connect to the PostgreSQL server conn = psycopg2.connect(dbname=dbname, user=user, password=password, host=host) cur = conn.cursor() select_query = ''' SELECT sec_level FROM doors WHERE "door_id" = %s; ''' # Execute the SQL query cur.execute(select_query, (doorID)) # Fetch the results result = None result = cur.fetchone() if result: doorSecLevel = result[0] else: badCred() raise Exception # Close communication with the database cur.close() except (Exception, psycopg2.DatabaseError) as error: print(error) raise Exception finally: if conn is not None: conn.close() if doorSecLevel < userSecLevel: raise Exception if gpie: GPIO.output(redLed, GPIO.LOW) for i in range(2): GPIO.output(greenLed, GPIO.HIGH) time.sleep(0.05) GPIO.output(greenLed, GPIO.LOW) time.sleep(0.05) GPIO.output(greenLed, GPIO.HIGH) GPIO.output(door, GPIO.HIGH) time.sleep(5) GPIO.output(greenLed, GPIO.LOW) except Exception as e: print("Authentication Failed!") for i in range(5): if gpie: GPIO.output(redLed, GPIO.LOW) time.sleep(0.05) GPIO.output(redLed, GPIO.HIGH) time.sleep(0.05)