Lab 2 Code Listings

# GenCyber Login Program

import getpass

# Password "database".

password_db = {"Bill" : "Clawhammer",

               "Jesse" : "Mitsu",

               "Steven" : "Muddy",

               "Ashley" : "Shadow"}

# Keep track of if we should keep looping.

loop_again = True

while loop_again:

    # Collect login information.

    print("\n\n=========Login Page===========")

    username = input("Username: ")

    password =  getpass.getpass()

    # Get correct password from database that matches username.

    correct_password = password_db.get(username)

    if correct_password == None:

        # If correct_password is None that means user was not found.

        print("User Not Found!")

    elif correct_password != password:

        # If passwords do not match then password is wrong.

        print("Invalid Password") 

    elif correct_password == password:

        # If the password match stop looping and log in user.

        loop_again = False

print("Congratulations, you are logged in.")

# GenCyber Login Program

import getpass

import datetime

# Password "database".

password_db = {"Bill" : "Clawhammer",

               "Jesse" : "Mitsu",

               "Steven" : "Muddy",

               "Ashley" : "Shadow"}

# Keep track of login attempts.

attempt_list = []

# Keep track if too many login attempts.

is_too_many_attempts = False

# Keep track of if we should keep looping.

loop_again = True

while loop_again:

    # Collect login information.

    print("\n\n=========Login Page===========")

    username = input("Username: ")

    password =  getpass.getpass()

    # Get correct password from database that matches username.

    correct_password = password_db.get(username)

    if correct_password == None:

        # If correct_password is None that means user was not found.

        print("User Not Found!")

    elif correct_password != password:

        # If passwords do not match then password is wrong.

        print("Invalid Password") 

    elif correct_password == password:

        # If the password match stop looping and log in user.

        loop_again = False

    # If we're going to loop again check to see if there have been 

    # too many attempts.

    if loop_again:

        if len(attempt_list) == 3:

            # If list has three items remove the first.

            attempt_list.pop(0)

        # Add current time to the end of the attempt list.

        attempt_list.append(datetime.datetime.now())

        # Check if there are three attempts in the list.

        if len(attempt_list) == 3:

            # Calculate time between first and third attempt.

            delta = attempt_list[2] - attempt_list[0]

            # Check if the time between first and third attempt 

            # is less than 15 minutes.

            if delta.total_seconds() <= (1 * 60):

                # Set too many attempts to true.

                is_too_many_attempts = True

                # Set loop again to false.

                loop_again = False

# Check if there have been too many attempts.

if is_too_many_attempts:

    print("Too many login attempts")

else :    

    # If we get this far we have logged in successfully. 

    print("Congratulations, you are logged in.")

# GenCyber Login Program

import getpass

import datetime

import bcrypt

# Password "database".

password_db = {"Bill" : "Clawhammer",

               "Jesse" : "Mitsu",

               "Steven" : "Muddy",

               "Ashley" : "Shadow"}

# Hash all of the passwords in the database.

for key, value in password_db.items():

    password_db[key] = bcrypt.hashpw(value.encode(), bcrypt.gensalt())

# Keep track of login attempts.

attempt_list = []

# Keep track if too many login attempts.

is_too_many_attempts = False

# Keep track of if we should keep looping.

loop_again = True

while loop_again:

    # Collect login information.

    print("\n\n=========Login Page===========")

    username = input("Username: ")

    password =  getpass.getpass()

    # Get correct password from database that matches username.

    correct_password = password_db.get(username)

    if correct_password == None:

        # If correct_password is None that means user was not found.

        print("User Not Found!")

    else:

        # Compare password to the hashed password database.            

        if bcrypt.checkpw(password.encode(), correct_password):

            # If the password match stop looping and log in user.

            loop_again = False

        else:

            # If pasword do not match then password is wrong.

            print("Invalid Password") 

    # If we're going to loop again check to see if there have been 

    # too many attempts.

    if loop_again:

        if len(attempt_list) == 3:

            # If list has three items remove the first.

            attempt_list.pop(0)

        # Add current time to the end of the attempt list.

        attempt_list.append(datetime.datetime.now())

        # Check if there are three attempts in the list.

        if len(attempt_list) == 3:

            # Calculate time between first and third attempt.

            delta = attempt_list[2] - attempt_list[0]

            # Check if the time between first and third attempt 

            # is less than 15 minutes.

            if delta.total_seconds() <= (1 * 60):

                # Set too many attempts to true.

                is_too_many_attempts = True

                # Set loop again to false.

                loop_again = False

# Check if there have been too many attempts.

if is_too_many_attempts:

    print("Too many login attempts")

else :    

    # If we get this far we have logged in successfully. 

    print("Congratulations, you are logged in.")

# GenCyber Login Program

import getpass

import datetime

import bcrypt

# Password "database".

password_db = {"Bill" : "Clawhammer",

               "Jesse" : "Mitsu",

               "Steven" : "Muddy",

               "Ashley" : "Shadow"}

# Hash all of the passwords in the database.

for key, value in password_db.items():

    password_db[key] = bcrypt.hashpw(value.encode(), bcrypt.gensalt())

print(password_db["Bill"])    

print(password_db["Jesse"])

print(password_db["Steven"])

print(password_db["Ashley"])

# Keep track of login attempts.

attempt_list = []

# Keep track if too many login attempts.

is_too_many_attempts = False

# Keep track of if we should keep looping.

loop_again = True

while loop_again:

    # Collect login information.

    print("\n\n=========Login Page===========")

    username = input("Username: ")

    password =  getpass.getpass()

    # Get correct password from database that matches username.

    correct_password = password_db.get(username)

    if correct_password == None:

        # If correct_password is None that means user was not found.

        print("User Not Found!")

    else:

        # Compare password to the hashed password database.            

        if bcrypt.checkpw(password.encode(), correct_password):

            # If the password match stop looping and log in user.

            loop_again = False

        else:

            # If pasword do not match then password is wrong.

            print("Invalid Password") 

    # If we're going to loop again check to see if there have been 

    # too many attempts.

    if loop_again:

        if len(attempt_list) == 3:

            # If list has three items remove the first.

            attempt_list.pop(0)

        # Add current time to the end of the attempt list.

        attempt_list.append(datetime.datetime.now())

        # Check if there are three attempts in the list.

        if len(attempt_list) == 3:

            # Calculate time between first and third attempt.

            delta = attempt_list[2] - attempt_list[0]

            # Check if the time between first and third attempt 

            # is less than 15 minutes.

            if delta.total_seconds() <= (1 * 60):

                # Set too many attempts to true.

                is_too_many_attempts = True

                # Set loop again to false.

                loop_again = False

# Check if there have been too many attempts.

if is_too_many_attempts:

    print("Too many login attempts")

else :    

    # If we get this far we have logged in successfully. 

    print("Congratulations, you are logged in.")

# GenCyber Login Program

import getpass

import datetime

import bcrypt

# Password "database".

password_db = {"Bill" : b'$2b$12$5LDl.CSlUuvwNuK13V5HLO4ttZ/Vn99W5m0pbSQvUl4f7ydtTnbmy',

               "Jesse" : b'$2b$12$rJ32ZU6Z6aeFBTOrR1RHh.vRq.ul5udl/tAZgcGkz9lu.q3YJbl5O',

               "Steven" : b'$2b$12$3HttUIKLbVne3JEdWPmSPeDvbcgolhdiaHIq6e1gWURgNRxj.8c1G',

               "Ashley" : b'$2b$12$NIfL873dQaXDEZMErzHFs.SIpVXyHZTTKVPbA4ySTvYGqtNhav86G'}

# Keep track of login attempts.

attempt_list = []

# Keep track if too many login attempts.

is_too_many_attempts = False

# Keep track of if we should keep looping.

loop_again = True

while loop_again:

    # Collect login information.

    print("\n\n=========Login Page===========")

    username = input("Username: ")

    password =  getpass.getpass()

    # Get correct password from database that matches username.

    correct_password = password_db.get(username)

    if correct_password == None:

        # If correct_password is None that means user was not found.

        print("User Not Found!")

    else:

        # Compare password to the hashed password database.            

        if bcrypt.checkpw(password.encode(), correct_password):

            # If the password match stop looping and log in user.

            loop_again = False

        else:

            # If pasword do not match then password is wrong.

            print("Invalid Password") 

    # If we're going to loop again check to see if there have been 

    # too many attempts.

    if loop_again:

        if len(attempt_list) == 3:

            # If list has three items remove the first.

            attempt_list.pop(0)

        # Add current time to the end of the attempt list.

        attempt_list.append(datetime.datetime.now())

        # Check if there are three attempts in the list.

        if len(attempt_list) == 3:

            # Calculate time between first and third attempt.

            delta = attempt_list[2] - attempt_list[0]

            # Check if the time between first and third attempt 

            # is less than 15 minutes.

            if delta.total_seconds() <= (1 * 60):

                # Set too many attempts to true.

                is_too_many_attempts = True

                # Set loop again to false.

                loop_again = False

# Check if there have been too many attempts.

if is_too_many_attempts:

    print("Too many login attempts")

else :    

    # If we get this far we have logged in successfully. 

    print("Congratulations, you are logged in.")