混合云存储新年促销

import shutil

def migrate_data(source_path, destination_path):
    try:
        shutil.copytree(source_path, destination_path, symlinks=True)
        print("Data migration completed successfully.")
    except Exception as e:
        print(f"Error during migration: {e}")

import hashlib

def verify_data_integrity(file_path, expected_hash):
    hasher = hashlib.md5()
    with open(file_path, 'rb') as f:
        buf = f.read()
        hasher.update(buf)
    computed_hash = hasher.hexdigest()
    return computed_hash == expected_hash

# Usage
file_path = "/path/to/file"
expected_hash = "expected_md5_hash"
if verify_data_integrity(file_path, expected_hash):
    print("Data integrity verified.")
else:
    print("Data integrity check failed.")

from cryptography.fernet import Fernet

def encrypt_data(data, key):
    f = Fernet(key)
    encrypted_data = f.encrypt(data.encode())
    return encrypted_data

def decrypt_data(encrypted_data, key):
    f = Fernet(key)
    decrypted_data = f.decrypt(encrypted_data).decode()
    return decrypted_data

# Usage
key = Fernet.generate_key()
data = "sensitive information"
encrypted_data = encrypt_data(data, key)
decrypted_data = decrypt_data(encrypted_data, key)
print(f"Original Data: {data}")
print(f"Decrypted Data: {decrypted_data}")