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import base64
import binascii
import hashlib
import re
password_pattern = r"^(?=.*[a-zA-Z])(?=.*\d).{8,}$"
def valid_password(password):
# Define a regex pattern for password rules
pattern = password_pattern
# Check if the password matches the pattern
if re.match(pattern, password) is not None:
return password
raise ValueError('Not a valid password.')
def hash_password(password_str, salt_byte):
dk = hashlib.pbkdf2_hmac('sha256', password_str.encode('utf-8'), salt_byte, 10000)
return binascii.hexlify(dk)
def compare_password(password_str, password_hashed_base64, salt_base64):
# compare password for login
return hash_password(password_str, base64.b64decode(salt_base64)) == base64.b64decode(password_hashed_base64)
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