from cryptography.fernet import Fernet

# 生成密钥并保存

key = Fernet.generate_key()

with open('mykey.key', 'wb') as mykey:

mykey.write(key)

# 从文件加载密钥

with open('mykey.key', 'rb') as mykey:

key = mykey.read()

f = Fernet(key)

# 加密文件

with open('plaintext.txt', 'rb') as original_file:

original = original_file.read()

encrypted = f.encrypt(original)

with open('encrypted.txt', 'wb') as encrypted_file:

encrypted_file.write(encrypted)

]]>

from django.contrib.auth.models import User

# 创建新用户

new_user = User.objects.create_user('username', 'email@example.com', 'password')

# 验证用户登录

def login_view(request):

username = request.POST['username']

password = request.POST['password']

user = authenticate(username=username, password=password)

if user is not None:

login(request, user)

return redirect('home')

else:

return render(request, 'login.html')

]]>