CNSA-276-FP/main.py

343 lines
10 KiB
Python

# 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
from fido2 import cbor
# from fido2 import CtapNfcDevice
config = configparser.ConfigParser()
config.read('config.ini')
# test
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
while True:
# isNfc = False
if gpie:
GPIO.output(door, GPIO.LOW)
print("Waiting for device...")
badCredentials = False
if gpie:
GPIO.output(redLed, GPIO.HIGH)
while True:
try:
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(3)
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)