敏感数据安全双十二促销活动

from cryptography.fernet import Fernet

# 生成密钥
key = Fernet.generate_key()
cipher_suite = Fernet(key)

# 加密数据
encrypted_data = cipher_suite.encrypt(b"Sensitive information")

# 解密数据
decrypted_data = cipher_suite.decrypt(encrypted_data)

def check_access(user_role, required_role):
    roles = {
        'admin': 3,
        'manager': 2,
        'user': 1
    }
    return roles[user_role] >= roles[required_role]

def mask_data(data):
    if isinstance(data, str):
        return data[:2] + '*' * (len(data) - 4) + data[-2:]
    return data

import logging

logging.basicConfig(filename='app.log', level=logging.INFO)

def log_access(user, action):
    logging.info(f"User {user} performed action {action}")