Python:用密钥压缩字典

from Crypto.Cipher import AES
import base64

def encrypt_dict(data, key):
    cipher = AES.new(key, AES.MODE_EAX)
    ciphertext, tag = cipher.encrypt_and_digest(str(data).encode('utf-8'))
    return {
        'ciphertext': base64.b64encode(ciphertext).decode('utf-8'),
        'tag': base64.b64encode(tag).decode('utf-8'),
        'nonce': base64.b64encode(cipher.nonce).decode('utf-8')
    }

def decrypt_dict(data, key):
    ciphertext = base64.b64decode(data['ciphertext'])
    tag = base64.b64decode(data['tag'])
    nonce = base64.b64decode(data['nonce'])
    cipher = AES.new(key, AES.MODE_EAX, nonce=nonce)
    plaintext = cipher.decrypt_and_verify(ciphertext, tag)
    return eval(plaintext.decode('utf-8'))

# 示例
data = {'name': 'Alice', 'age': 20, 'password': '123456'}
key = b'Sixteen byte key'

encrypted_data = encrypt_dict(data, key)
print(encrypted_data)

decrypted_data = decrypt_dict(encrypted_data, key)
print(decrypted_data)