HashSystem.py

import hashlib
import os

def generateSalt():
    """
    A function that generates a random salt value.
    @return a random salt of 32 bytes.
    """
    return os.urandom(32)

def hashPassword(password, salt):
    """
    A function that generates a hashed password using a password and salt.
    @param password: the password to hash.
    @param salt: the salt to hash the password with.
    @return the hashed password.
    """
    hash_function = hashlib.sha256 # using SHA-256 hash function

    hashed_password = hashlib.pbkdf2_hmac(hash_function().name, password.encode('utf-8'), salt, 100000) # hashing the password using PBKDF2

    # Return the hashed password as bytes
    return hashed_password

def verifyPassword(input_password, stored_salt, stored_hashed_password):
    """
    A function to verify a given password, when hashed, is the same as the stored hashed password.
    @param input_password: the given password to verify.
    @param stored_salt: the stored salt used to create the hashed password.
    @param stored_hashed_password: the stored hashed password to use to check the validity of the given password.
    """
    # Hash the input password using the stored salt
    hash_attempt = hashPassword(input_password, stored_salt)

    # Compare the hashed input password with the stored hashed password
    return hash_attempt == stored_hashed_password