import argon2

# When a user creates a new account

# Generate a random salt value
salt = os.urandom(16)

# Get the user's password
password = "my_secret_password"

# Hash the password using the salt value
hasher = argon2.PasswordHasher()
password_hash = hasher.hash(password, salt=salt)

# Store the password hash and salt value in the database

# When the user logs in

# Retrieve the password hash and salt value from the database

stored_password_hash = "..."
stored_salt = "..."

# Get the user's entered password
entered_password = "my_secret_password"

# Check if the entered password matches the stored password hash
if hasher.verify(entered_password, stored_password_hash):
    # The passwords match, so the user is authenticated
    print("User is authenticated")
else:
    # The passwords do not match, so the user is not authenticated
    print("User is not authenticated")

# os.urandom() function is used to generate a random salt value. It is important to use a cryptographically secure random number generator to generate the salt, as this will help to ensure the security of the password hashes. 