Hashing passwords with salt and testing input passwords.

encrypt_passwords.py

#!/usr/bin/env python
# coding: utf-8

import uuid
import hashlib
import getpass


def get_hash(salt, plain_password):
    return hashlib.sha256(salt.encode() + plain_password.encode()).hexdigest()


def hash_password(plain_password):
    salt = uuid.uuid4().hex
    encrypted_password = get_hash(salt, plain_password)
    return salt + '$' + encrypted_password


def check_password(hashed_password, plain_password):
    salt, encrypted_password = hashed_password.split('$')
    re_encrypted_password = get_hash(salt, plain_password)
    return encrypted_password == re_encrypted_password


password = getpass.getpass('Enter a password: ')
hashed_password = hash_password(password)
print('Salt + hashed password: ' + hashed_password)
re_password = getpass.getpass('Retype password: ')
if check_password(hashed_password, re_password):
    print('Passwords match.')
else:
    print('Sorry, passwords do not match.')